https://github.com/varghese25/springtaiga

Development DeVops
https://github.com/varghese25/springtaiga

corejava crud-api docker html-css-javascript kubernetes mvc-architecture postgresql spring-boot taiga

Last synced: 2 months ago
JSON representation

Development DeVops

Host: GitHub
URL: https://github.com/varghese25/springtaiga
Owner: varghese25
Created: 2024-09-10T16:22:21.000Z (10 months ago)
Default Branch: main
Last Pushed: 2024-12-05T19:41:50.000Z (7 months ago)
Last Synced: 2025-03-28T08:51:16.610Z (3 months ago)
Topics: corejava, crud-api, docker, html-css-javascript, kubernetes, mvc-architecture, postgresql, spring-boot, taiga
Language: HTML
Homepage:
Size: 4.18 MB
Stars: 3
Watchers: 2
Forks: 1
Open Issues: 0
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

05-12-2024

## PS E:\myWorks\springTaiga> Remove-Item -Recurse -Force node_modules

which remove the node_modules either we can add gitignore which wont track the modules.Node module files
has heavy dependancy so it is hard to track the changes best way to give gitignore.

Learned from HubSpot Developer Certification. When i try colloabe my TTM code with HubSpot.

npm install @hubspot/cli
// Intall node modules
npx hs init
// Hubspot Sandbox for authencation and many other useCase.

Passed Certifcation of Hubspot Reporting

<----------------------------------------------------------------------------------------->

##TTM Project

##Truncate removes row record and ensures the id column will begin counting from 1.

TRUNCATE TABLE my_app_user RESTART IDENTITY;

SELECT pg_get_serial_sequence('my_app_user', 'id');

ALTER SEQUENCE my_app_user_id_seq RESTART WITH 1;

Taiga And GitHub Intergration
Date 10/09/2024

Step 1 : Payload URL from taiga

Step 2 : Create Repo(springTaiga)

Step 3 : Repo, springTaiga -> Settings -> Webhooks -> add the Payload URL * & Secret key /

Which events would you like to trigger this webhook?

Send me everything.

https://api.taiga.io/api/v1/github-hook (all events) // Everything Fine it show green Tick

---------------------------------------------------------------------------------------

Date 11-09-2024

taiga-integration.yml

Created a directory in https://github.com/varghese25/springTaiga

.github/workflows/

Create a file inside that folder (ie. springTaiga/.github/workflows/) naming

Or else simple put the uploaded file (taiga-integration.yml) into folder

---------------------------------------------------------------------------------------

Date 12-09-2024

Work Flow Interagation

Step 1

Create work flow in github .github/workflows/taiga-integration.yml

Step 2

name: Taiga Integration

on:

push:

branches:

- main

pull_request:

branches:

- main

jobs:

update-taiga:

runs-on: ubuntu-latest

steps:

- name: Checkout code

uses: actions/checkout@v2

- name: Send updates to Taiga

env:

TAIGA_API_URL: "https://api.taiga.io" # Hardcoding the API URL

TAIGA_AUTH_TOKEN: ${{ secrets.TAIGA_AUTH_TOKEN}} # Secret reference for the auth token

run: |

curl -X POST "$TAIGA_API_URL/github-hook?project=1585351" \

-H "Authorization: Bearer $TAIGA_AUTH_TOKEN" \

-H "Content-Type: application/json" \

--data '{

"repository": {

"name": "'"$GITHUB_REPOSITORY"'",

"url": "'"$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"'"

},

"action": "update"

}'

Step 3

Referencing the Token as a Secret

The TAIGA_AUTH_TOKEN should be stored securely as a secret in GitHub.

You can add this secret by going to your repository’s Settings > Secrets and variables > Actions, and create a secret
called TAIGA_AUTH_TOKEN with the value being your authentication token (afb50e1cbf8b4a228851710cc630ea57)....

---------------------------------------------------------------------------------------

17-09-2024

Installled miniKube

install latest kubernetes/ kubectl

Minikube start

Minikube stop

Kubectl get svc

Kubectl get pods

----

Importatnt docker command

docker pull,

docker run,

docker exec,

docker logs,

docker build,

docker tag,

docker push,

docker images,

docker ps,

docker system prune

----------------------------------------------------

## Date 20-09-2024
## Make Image as Pod & Mutliple Replica's Command
Open 2 terminals:
Terminal-1:
===========
> minikube start #Kub8 Command#
(it will take long time to create a node)
-----
# Make 2 replicas of rmanojcse06/spring-boot-hello:0.0.1,
# without making image to container (docker run -d -n -p :18080
# We are using kubectl to make 2 containers

> kubectl create deployment rmanoj-spring-deployment-pod --image=rmanojcse06/spring-boot-hello:0.0.1 --port=18080 --replicas=2 -o yaml #Kub8 Command#

> kubectl get pods -o wide --show-labels #Kub8 Command#
C:\Users\lenovo>kubectl get pods --show-labels -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES LABELS
rmanoj-spring-deployment-pod-5477d68b5-f64cl 1/1 Running 0 70s 10.244.0.14 minikube app=rmanoj-spring-deployment-pod,pod-template-hash=5477d68b5
rmanoj-spring-deployment-pod-5477d68b5-rw5w4 1/1 Running 0 70s 10.244.0.15 minikube app=rmanoj-spring-deployment-pod,pod-template-hash=5477d68b5

# Make a curl pod (a Linux machine having curl inside minikube cluster) and try checking replica

C:\Users\lenovo>kubectl run curlpod --image=curlimages/curl -i --tty -- sh
If you don't see a command prompt, try pressing enter.
~ $ curl 10.244.0.14:18080
{"timestamp":"2024-09-18T03:28:20.619+00:00","status":404,"error":"Not Found","path":"/"}~ $
~ $ curl 10.244.0.14:18080/hello
Hello created by Manoj and Tiju~ $
~ $ curl 10.244.0.15:18080/hello
Hello created by Manoj and Tiju~ $
~ $ exit
Session ended, resume using 'kubectl attach curlpod -c curlpod -i -t' command when the pod is running

C:\Users\lenovo>kubectl get pods
NAME READY STATUS RESTARTS AGE
curlpod 1/1 Running 1 (10s ago) 57s
rmanoj-spring-deployment-pod-5477d68b5-f64cl 1/1 Running 0 4m14s
rmanoj-spring-deployment-pod-5477d68b5-rw5w4 1/1 Running 0 4m14s

Now create service for 2 replicas
> kubectl create service nodeport rmanoj-spring-service --tcp=30000:18080 --dry-run=client -o yaml > service.yaml
#edit (C:\Users\u\Varghese Baby)service.yaml to point the pod having label
spec>selector>app: rmanoj-spring-deployment-pod #

> kubectl apply -f service.yaml

C:\Users\lenovo>kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 443/TCP 10h
rmanoj-spring-service NodePort 10.110.92.29 30000:32321/TCP 12s

C:\Users\lenovo>kubectl attach curlpod -c curlpod -i -t
If you don't see a command prompt, try pressing enter.
~ $ curl 10.110.92.29:30000/hello
Hello created by Manoj and Tiju~ $
~ $ exit

Now 2 pods are running inside a cluster, 1 service exposes two pods
But you cannot open it in your local

Open 2 Terminal 2
To do Open another Terminal
kubectl port-forward svc/rmanoj-spring-service 9090:30000

Now goto Browser
http://localhost:9090/hello
will run the pod inside cluster

you can check the logs for running containers also
> kubectl get pods
> kubectl logs rmanoj-spring-deployment-pod-5477d68b5-f64cl

C:\Users\u>kubectl get pods
NAME READY STATUS RESTARTS AGE
curlpod 0/1 Completed 7 (12m ago) 78m
rmanoj-spring-deployment-pod-76cdff6666-447rl 1/1 Running 0 129m
rmanoj-spring-deployment-pod-76cdff6666-m7wng 1/1 Running 0 129m

C:\Users\u>kubectl delete pod rmanoj-spring-deployment-pod-76cdff6666-447rl
pod "rmanoj-spring-deployment-pod-76cdff6666-447rl" deleted

C:\Users\u>kubectl get pods
NAME READY STATUS RESTARTS AGE
curlpod 1/1 Running 8 (65s ago) 79m
rmanoj-spring-deployment-pod-76cdff6666-m7wng 1/1 Running 0 130m
rmanoj-spring-deployment-pod-76cdff6666-tf2wv 0/1 ContainerCreating 0 18s

C:\Users\u>kubectl get pods
NAME READY STATUS RESTARTS AGE
curlpod 1/1 Running 8 (13m ago) 92m
rmanoj-spring-deployment-pod-76cdff6666-m7wng 1/1 Running 0 142m
rmanoj-spring-deployment-pod-76cdff6666-tf2wv 1/1 Running 0 12m

C:\Users\u>kubectl get deployment
NAME READY UP-TO-DATE AVAILABLE AGE
rmanoj-spring-deployment-pod 2/2 2 2 143m

C:\Users\u>kubectl scale deployment --replicas=4
error: resource(s) were provided, but no name was specified

C:\Users\u>kubectl scale deployment --replicas=4 rmanoj-spring-deployment-pod
deployment.apps/rmanoj-spring-deployment-pod scaled

C:\Users\u>kubectl get pods
NAME READY STATUS RESTARTS AGE
curlpod 1/1 Running 8 (15m ago) 94m
rmanoj-spring-deployment-pod-76cdff6666-88rxf 1/1 Running 0 18s
rmanoj-spring-deployment-pod-76cdff6666-m7wng 1/1 Running 0 144m
rmanoj-spring-deployment-pod-76cdff6666-tf2wv 1/1 Running 0 14m
rmanoj-spring-deployment-pod-76cdff6666-zr2lz 0/1 ContainerCreating 0 18s

C:\Users\u>kubectl get pods

-------------------------------------------------------------

## Installing Curl Inside the pod

Kuber8 Commands

C:\Users\u>kubectl get pods -o wide --show-labels
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES LABELS
rmanoj-spring-deployment-pod-76cdff6666-447rl 0/1 ContainerCreating 0 2m1s minikube app=rmanoj-spring-deployment-pod,pod-template-hash=76cdff6666
rmanoj-spring-deployment-pod-76cdff6666-m7wng 0/1 ContainerCreating 0 2m1s minikube app=rmanoj-spring-deployment-pod,pod-template-hash=76cdff6666

C:\Users\u>kubectl get pods -o wide --show-labels
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES LABELS
rmanoj-spring-deployment-pod-76cdff6666-447rl 0/1 ContainerCreating 0 2m39s minikube app=rmanoj-spring-deployment-pod,pod-template-hash=76cdff6666
rmanoj-spring-deployment-pod-76cdff6666-m7wng 0/1 ContainerCreating 0 2m39s minikube app=rmanoj-spring-deployment-pod,pod-template-hash=76cdff6666

C:\Users\u>kubectl log
error: unknown command "log" for "kubectl"

Did you mean this?
top
logs

C:\Users\u>kubectl logs rmanoj-spring-deployment-pod-76cdff6666-m7wng
Error from server (BadRequest): container "spring-boot-hello" in pod "rmanoj-spring-deployment-pod-76cdff6666-m7wng" is waiting to start: ContainerCreating

C:\Users\u>kubectl describe pod rmanoj-spring-deployment-pod-76cdff6666-m7wng
Name: rmanoj-spring-deployment-pod-76cdff6666-m7wng
Namespace: default
Priority: 0
Service Account: default
Node: minikube/192.168.49.2
Start Time: Fri, 20 Sep 2024 12:14:10 -0400
Labels: app=rmanoj-spring-deployment-pod
pod-template-hash=76cdff6666
Annotations:
Status: Pending
IP:
IPs:
Controlled By: ReplicaSet/rmanoj-spring-deployment-pod-76cdff6666
Containers:
spring-boot-hello:
Container ID:
Image: rmanojcse06/spring-boot-hello:0.0.1
Image ID:
Port: 18080/TCP
3f2c9b4652b6: Downloading [=========> ] 36.01MB/187.5MB
State: Waiting
3f2c9b4652b6: Downloading [===============================> ] 119.5MB/187.5MB
3f2c9b4652b6: Downloading [========> ] 33.32MB/187.5MB
Restart Count: 0
Environment:
3f2c9b4652b6: Downloading [========> ] 32.78MB/187.5MB
/var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-pkkrs (ro)
Conditions:
3f2c9b4652b6: Downloading [========> ] 32.25MB/187.5MB
PodReadyToStartContainers False
3f2c9b4652b6: Downloading [=================================> ] 123.8MB/187.5MB
3f2c9b4652b6: Downloading [========> ] 31.71MB/187.5MB
ContainersReady False
PodScheduled True
Volumes:
kube-api-access-pkkrs:
3f2c9b4652b6: Pull complete
11849ef6ba8a: Pull complete
975de163316e: Pull complete
Digest: sha256:d670fa6d69cc937db8fde557fbd05a02e607723ea9bbc808b39a98fbb51e7995
Status: Downloaded newer image for rmanojcse06/spring-boot-hello:0.0.1
docker.io/rmanojcse06/spring-boot-hello:0.0.1
Node-Selectors:
What's next: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
View a summary of image vulnerabilities and recommendations → docker scout quickview rmanojcse06/spring-boot-hello:0.0.1
Events:
C:\Users\u>6: Downloading [========> ] 31.17MB/187.5MB
C:\Users\u>----- ---- ---- -------
C:\Users\u>cheduled 4m42s default-scheduler Successfully assigned default/rmanoj-spring-deployment-pod-76cdff6666-m7wng to minikube
C:\Users\u>ulling 4m27s kubelet Pulling image "rmanojcse06/spring-boot-hello:0.0.1"
C:\Users\u>
C:\Users\u>docker pull rmanojcse06/spring-boot-hello:0.0.1
C:\Users\u>ing from rmanojcse06/spring-boot-hello
C:\Users\u>3: Pull complete
C:\Users\u>1: Pull complete
C:\Users\u>6: Downloading [========> ] 30.63MB/187.5MB
C:\Users\u>a: Download complete
C:\Users\u>e: Download complete
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>
C:\Users\u>docker pull rmanojcse06/spring-boot-hello:0.0.1
0.0.1: Pulling from rmanojcse06/spring-boot-hello
Digest: sha256:d670fa6d69cc937db8fde557fbd05a02e607723ea9bbc808b39a98fbb51e7995
Status: Image is up to date for rmanojcse06/spring-boot-hello:0.0.1
docker.io/rmanojcse06/spring-boot-hello:0.0.1

What's next:
View a summary of image vulnerabilities and recommendations → docker scout quickview rmanojcse06/spring-boot-hello:0.0.1

C:\Users\u>kubectl get pods
NAME READY STATUS RESTARTS AGE
rmanoj-spring-deployment-pod-76cdff6666-447rl 1/1 Running 0 18m
rmanoj-spring-deployment-pod-76cdff6666-m7wng 1/1 Running 0 18m

C:\Users\u>kubectl exec -it rmanoj-spring-deployment-pod-76cdff6666-447rl --sh
error: unknown flag: --sh
See 'kubectl exec --help' for usage.

C:\Users\u>kubectl exec -it rmanoj-spring-deployment-pod-76cdff6666-447rl -- /bin/sh
# curl localhost:18080/hello
/bin/sh: 1: curl: not found
# apk update
apk add curl
/bin/sh: 2: apk: not found
# /bin/sh: 3: apk: not found
# apk update
apk add curl
/bin/sh: 4: apk: not found
# /bin/sh: 5: apk: not found
# cat /etc/alpine-release
cat: /etc/alpine-release: No such file or directory
# uname - a
uname: extra operand ‘-’
Try 'uname --help' for more information.
# uname -a
Linux rmanoj-spring-deployment-pod-76cdff6666-447rl 5.15.153.1-microsoft-standard-WSL2 #1 SMP Fri Mar 29 23:14:13 UTC 2024 x86_64 GNU/Linux
# sudo apt update
sudo apt install curl
/bin/sh: 9: sudo: not found
# /bin/sh: 10: sudo: not found
# apt update
Get:1 http://security.debian.org/debian-security buster/updates InRelease [34.8 kB]
Get:2 http://deb.debian.org/debian buster InRelease [122 kB]
Get:3 http://deb.debian.org/debian buster-updates InRelease [56.6 kB]
Get:4 http://security.debian.org/debian-security buster/updates/main amd64 Packages [610 kB]
Get:5 http://deb.debian.org/debian buster/main amd64 Packages [7909 kB]
Get:6 http://deb.debian.org/debian buster-updates/main amd64 Packages [8788 B]
Fetched 8741 kB in 15s (569 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
33 packages can be upgraded. Run 'apt list --upgradable' to see them.
# apt install curl
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
krb5-locales libcurl4 libgssapi-krb5-2 libk5crypto3 libkeyutils1 libkrb5-3 libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libpsl5 librtmp1 libsasl2-2
libsasl2-modules libsasl2-modules-db libssh2-1 publicsuffix
Suggested packages:
krb5-doc krb5-user libsasl2-modules-gssapi-mit | libsasl2-modules-gssapi-heimdal libsasl2-modules-ldap libsasl2-modules-otp libsasl2-modules-sql
The following NEW packages will be installed:
curl krb5-locales libcurl4 libgssapi-krb5-2 libk5crypto3 libkeyutils1 libkrb5-3 libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libpsl5 librtmp1
libsasl2-2 libsasl2-modules libsasl2-modules-db libssh2-1 publicsuffix
0 upgraded, 18 newly installed, 0 to remove and 33 not upgraded.
Need to get 2492 kB of archives.
After this operation, 5887 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://security.debian.org/debian-security buster/updates/main amd64 krb5-locales all 1.17-3+deb10u6 [95.8 kB]
Get:2 http://security.debian.org/debian-security buster/updates/main amd64 libkrb5support0 amd64 1.17-3+deb10u6 [66.1 kB]
Get:3 http://security.debian.org/debian-security buster/updates/main amd64 libk5crypto3 amd64 1.17-3+deb10u6 [122 kB]
Get:4 http://deb.debian.org/debian buster/main amd64 libkeyutils1 amd64 1.6-6 [15.0 kB]
Get:5 http://security.debian.org/debian-security buster/updates/main amd64 libkrb5-3 amd64 1.17-3+deb10u6 [369 kB]
Get:6 http://deb.debian.org/debian buster/main amd64 libsasl2-modules-db amd64 2.1.27+dfsg-1+deb10u2 [69.2 kB]
Get:7 http://deb.debian.org/debian buster/main amd64 libsasl2-2 amd64 2.1.27+dfsg-1+deb10u2 [106 kB]
Get:8 http://security.debian.org/debian-security buster/updates/main amd64 libgssapi-krb5-2 amd64 1.17-3+deb10u6 [159 kB]
Get:9 http://deb.debian.org/debian buster/main amd64 libldap-common all 2.4.47+dfsg-3+deb10u7 [90.1 kB]
Get:10 http://deb.debian.org/debian buster/main amd64 libldap-2.4-2 amd64 2.4.47+dfsg-3+deb10u7 [224 kB]
Get:11 http://security.debian.org/debian-security buster/updates/main amd64 libnghttp2-14 amd64 1.36.0-2+deb10u3 [86.1 kB]
Get:12 http://security.debian.org/debian-security buster/updates/main amd64 libssh2-1 amd64 1.8.0-2.1+deb10u1 [141 kB]
Get:13 http://security.debian.org/debian-security buster/updates/main amd64 libcurl4 amd64 7.64.0-4+deb10u9 [336 kB]
Get:14 http://deb.debian.org/debian buster/main amd64 libpsl5 amd64 0.20.2-2 [53.7 kB]
Get:15 http://deb.debian.org/debian buster/main amd64 librtmp1 amd64 2.4+20151223.gitfa8646d.1-2 [60.5 kB]
Get:16 http://deb.debian.org/debian buster/main amd64 libsasl2-modules amd64 2.1.27+dfsg-1+deb10u2 [104 kB]
Get:17 http://deb.debian.org/debian buster/main amd64 publicsuffix all 20220811.1734-0+deb10u1 [127 kB]
Get:18 http://security.debian.org/debian-security buster/updates/main amd64 curl amd64 7.64.0-4+deb10u9 [267 kB]
Fetched 2492 kB in 3s (750 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package krb5-locales.
(Reading database ... 6891 files and directories currently installed.)
Preparing to unpack .../00-krb5-locales_1.17-3+deb10u6_all.deb ...
Unpacking krb5-locales (1.17-3+deb10u6) ...
Selecting previously unselected package libkeyutils1:amd64.
Preparing to unpack .../01-libkeyutils1_1.6-6_amd64.deb ...
Unpacking libkeyutils1:amd64 (1.6-6) ...
Selecting previously unselected package libkrb5support0:amd64.
Preparing to unpack .../02-libkrb5support0_1.17-3+deb10u6_amd64.deb ...
Unpacking libkrb5support0:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libk5crypto3:amd64.
Preparing to unpack .../03-libk5crypto3_1.17-3+deb10u6_amd64.deb ...
Unpacking libk5crypto3:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libkrb5-3:amd64.
Preparing to unpack .../04-libkrb5-3_1.17-3+deb10u6_amd64.deb ...
Unpacking libkrb5-3:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libgssapi-krb5-2:amd64.
Preparing to unpack .../05-libgssapi-krb5-2_1.17-3+deb10u6_amd64.deb ...
Unpacking libgssapi-krb5-2:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libsasl2-modules-db:amd64.
Preparing to unpack .../06-libsasl2-modules-db_2.1.27+dfsg-1+deb10u2_amd64.deb ...
Unpacking libsasl2-modules-db:amd64 (2.1.27+dfsg-1+deb10u2) ...
Selecting previously unselected package libsasl2-2:amd64.
Preparing to unpack .../07-libsasl2-2_2.1.27+dfsg-1+deb10u2_amd64.deb ...
Unpacking libsasl2-2:amd64 (2.1.27+dfsg-1+deb10u2) ...
Selecting previously unselected package libldap-common.
Preparing to unpack .../08-libldap-common_2.4.47+dfsg-3+deb10u7_all.deb ...
Unpacking libldap-common (2.4.47+dfsg-3+deb10u7) ...
Selecting previously unselected package libldap-2.4-2:amd64.
Preparing to unpack .../09-libldap-2.4-2_2.4.47+dfsg-3+deb10u7_amd64.deb ...
Unpacking libldap-2.4-2:amd64 (2.4.47+dfsg-3+deb10u7) ...
Selecting previously unselected package libnghttp2-14:amd64.
Preparing to unpack .../10-libnghttp2-14_1.36.0-2+deb10u3_amd64.deb ...
Unpacking libnghttp2-14:amd64 (1.36.0-2+deb10u3) ...
Selecting previously unselected package libpsl5:amd64.
Preparing to unpack .../11-libpsl5_0.20.2-2_amd64.deb ...
Unpacking libpsl5:amd64 (0.20.2-2) ...
Selecting previously unselected package librtmp1:amd64.
Preparing to unpack .../12-librtmp1_2.4+20151223.gitfa8646d.1-2_amd64.deb ...
Unpacking librtmp1:amd64 (2.4+20151223.gitfa8646d.1-2) ...
Selecting previously unselected package libssh2-1:amd64.
Preparing to unpack .../13-libssh2-1_1.8.0-2.1+deb10u1_amd64.deb ...
Unpacking libssh2-1:amd64 (1.8.0-2.1+deb10u1) ...
Selecting previously unselected package libcurl4:amd64.
Preparing to unpack .../14-libcurl4_7.64.0-4+deb10u9_amd64.deb ...
Unpacking libcurl4:amd64 (7.64.0-4+deb10u9) ...
Selecting previously unselected package curl.
Preparing to unpack .../15-curl_7.64.0-4+deb10u9_amd64.deb ...
Unpacking curl (7.64.0-4+deb10u9) ...
Selecting previously unselected package libsasl2-modules:amd64.
Preparing to unpack .../16-libsasl2-modules_2.1.27+dfsg-1+deb10u2_amd64.deb ...
Unpacking libsasl2-modules:amd64 (2.1.27+dfsg-1+deb10u2) ...
Selecting previously unselected package publicsuffix.
Preparing to unpack .../17-publicsuffix_20220811.1734-0+deb10u1_all.deb ...
Unpacking publicsuffix (20220811.1734-0+deb10u1) ...
Setting up libkeyutils1:amd64 (1.6-6) ...
Setting up libpsl5:amd64 (0.20.2-2) ...
Setting up libsasl2-modules:amd64 (2.1.27+dfsg-1+deb10u2) ...
Setting up libnghttp2-14:amd64 (1.36.0-2+deb10u3) ...
Setting up krb5-locales (1.17-3+deb10u6) ...
Setting up libldap-common (2.4.47+dfsg-3+deb10u7) ...
Setting up libkrb5support0:amd64 (1.17-3+deb10u6) ...
Setting up libsasl2-modules-db:amd64 (2.1.27+dfsg-1+deb10u2) ...
Setting up librtmp1:amd64 (2.4+20151223.gitfa8646d.1-2) ...
Setting up libk5crypto3:amd64 (1.17-3+deb10u6) ...
Setting up libsasl2-2:amd64 (2.1.27+dfsg-1+deb10u2) ...
Setting up libssh2-1:amd64 (1.8.0-2.1+deb10u1) ...
Setting up libkrb5-3:amd64 (1.17-3+deb10u6) ...
Setting up publicsuffix (20220811.1734-0+deb10u1) ...
Setting up libldap-2.4-2:amd64 (2.4.47+dfsg-3+deb10u7) ...
Setting up libgssapi-krb5-2:amd64 (1.17-3+deb10u6) ...
Setting up libcurl4:amd64 (7.64.0-4+deb10u9) ...
Setting up curl (7.64.0-4+deb10u9) ...
Processing triggers for libc-bin (2.28-10) ...
# curl localhost:18080/hello
Hello created by Manoj and Tiju# exit

C:\Users\u>kubectl get pods
NAME READY STATUS RESTARTS AGE
rmanoj-spring-deployment-pod-76cdff6666-447rl 1/1 Running 0 31m
rmanoj-spring-deployment-pod-76cdff6666-m7wng 1/1 Running 0 31m

C:\Users\u>kubectl exec -it rmanoj-spring-deployment-pod-76cdff6666-m7wng -- /bin/sh
# apt update && apt install curl
Get:1 http://deb.debian.org/debian buster InRelease [122 kB]
Get:2 http://deb.debian.org/debian buster-updates InRelease [56.6 kB]
Get:3 http://security.debian.org/debian-security buster/updates InRelease [34.8 kB]
Get:4 http://deb.debian.org/debian buster/main amd64 Packages [7909 kB]
Get:5 http://security.debian.org/debian-security buster/updates/main amd64 Packages [610 kB]
Get:6 http://deb.debian.org/debian buster-updates/main amd64 Packages [8788 B]
Fetched 8741 kB in 15s (574 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
33 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
krb5-locales libcurl4 libgssapi-krb5-2 libk5crypto3 libkeyutils1 libkrb5-3 libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libpsl5 librtmp1 libsasl2-2
libsasl2-modules libsasl2-modules-db libssh2-1 publicsuffix
Suggested packages:
krb5-doc krb5-user libsasl2-modules-gssapi-mit | libsasl2-modules-gssapi-heimdal libsasl2-modules-ldap libsasl2-modules-otp libsasl2-modules-sql
The following NEW packages will be installed:
curl krb5-locales libcurl4 libgssapi-krb5-2 libk5crypto3 libkeyutils1 libkrb5-3 libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libpsl5 librtmp1
libsasl2-2 libsasl2-modules libsasl2-modules-db libssh2-1 publicsuffix
0 upgraded, 18 newly installed, 0 to remove and 33 not upgraded.
Need to get 2492 kB of archives.
After this operation, 5887 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://security.debian.org/debian-security buster/updates/main amd64 krb5-locales all 1.17-3+deb10u6 [95.8 kB]
Get:2 http://deb.debian.org/debian buster/main amd64 libkeyutils1 amd64 1.6-6 [15.0 kB]
Get:3 http://security.debian.org/debian-security buster/updates/main amd64 libkrb5support0 amd64 1.17-3+deb10u6 [66.1 kB]
Get:4 http://deb.debian.org/debian buster/main amd64 libsasl2-modules-db amd64 2.1.27+dfsg-1+deb10u2 [69.2 kB]
Get:5 http://security.debian.org/debian-security buster/updates/main amd64 libk5crypto3 amd64 1.17-3+deb10u6 [122 kB]
Get:6 http://deb.debian.org/debian buster/main amd64 libsasl2-2 amd64 2.1.27+dfsg-1+deb10u2 [106 kB]
Get:7 http://security.debian.org/debian-security buster/updates/main amd64 libkrb5-3 amd64 1.17-3+deb10u6 [369 kB]
Get:8 http://deb.debian.org/debian buster/main amd64 libldap-common all 2.4.47+dfsg-3+deb10u7 [90.1 kB]
Get:9 http://deb.debian.org/debian buster/main amd64 libldap-2.4-2 amd64 2.4.47+dfsg-3+deb10u7 [224 kB]
Get:10 http://security.debian.org/debian-security buster/updates/main amd64 libgssapi-krb5-2 amd64 1.17-3+deb10u6 [159 kB]
Get:11 http://security.debian.org/debian-security buster/updates/main amd64 libnghttp2-14 amd64 1.36.0-2+deb10u3 [86.1 kB]
Get:12 http://deb.debian.org/debian buster/main amd64 libpsl5 amd64 0.20.2-2 [53.7 kB]
Get:13 http://deb.debian.org/debian buster/main amd64 librtmp1 amd64 2.4+20151223.gitfa8646d.1-2 [60.5 kB]
Get:14 http://deb.debian.org/debian buster/main amd64 libsasl2-modules amd64 2.1.27+dfsg-1+deb10u2 [104 kB]
Get:15 http://security.debian.org/debian-security buster/updates/main amd64 libssh2-1 amd64 1.8.0-2.1+deb10u1 [141 kB]
Get:16 http://security.debian.org/debian-security buster/updates/main amd64 libcurl4 amd64 7.64.0-4+deb10u9 [336 kB]
Get:17 http://deb.debian.org/debian buster/main amd64 publicsuffix all 20220811.1734-0+deb10u1 [127 kB]
Get:18 http://security.debian.org/debian-security buster/updates/main amd64 curl amd64 7.64.0-4+deb10u9 [267 kB]
Fetched 2492 kB in 3s (857 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package krb5-locales.
(Reading database ... 6891 files and directories currently installed.)
Preparing to unpack .../00-krb5-locales_1.17-3+deb10u6_all.deb ...
Unpacking krb5-locales (1.17-3+deb10u6) ...
Selecting previously unselected package libkeyutils1:amd64.
Preparing to unpack .../01-libkeyutils1_1.6-6_amd64.deb ...
Unpacking libkeyutils1:amd64 (1.6-6) ...
Selecting previously unselected package libkrb5support0:amd64.
Preparing to unpack .../02-libkrb5support0_1.17-3+deb10u6_amd64.deb ...
Unpacking libkrb5support0:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libk5crypto3:amd64.
Preparing to unpack .../03-libk5crypto3_1.17-3+deb10u6_amd64.deb ...
Unpacking libk5crypto3:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libkrb5-3:amd64.
Preparing to unpack .../04-libkrb5-3_1.17-3+deb10u6_amd64.deb ...
Unpacking libkrb5-3:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libgssapi-krb5-2:amd64.
Preparing to unpack .../05-libgssapi-krb5-2_1.17-3+deb10u6_amd64.deb ...
Unpacking libgssapi-krb5-2:amd64 (1.17-3+deb10u6) ...
Selecting previously unselected package libsasl2-modules-db:amd64.
Preparing to unpack .../06-libsasl2-modules-db_2.1.27+dfsg-1+deb10u2_amd64.deb ...
Unpacking libsasl2-modules-db:amd64 (2.1.27+dfsg-1+deb10u2) ...
Selecting previously unselected package libsasl2-2:amd64.
Preparing to unpack .../07-libsasl2-2_2.1.27+dfsg-1+deb10u2_amd64.deb ...
Unpacking libsasl2-2:amd64 (2.1.27+dfsg-1+deb10u2) ...
Selecting previously unselected package libldap-common.
Preparing to unpack .../08-libldap-common_2.4.47+dfsg-3+deb10u7_all.deb ...
Unpacking libldap-common (2.4.47+dfsg-3+deb10u7) ...
Selecting previously unselected package libldap-2.4-2:amd64.
Preparing to unpack .../09-libldap-2.4-2_2.4.47+dfsg-3+deb10u7_amd64.deb ...
Unpacking libldap-2.4-2:amd64 (2.4.47+dfsg-3+deb10u7) ...
Selecting previously unselected package libnghttp2-14:amd64.
Preparing to unpack .../10-libnghttp2-14_1.36.0-2+deb10u3_amd64.deb ...
Unpacking libnghttp2-14:amd64 (1.36.0-2+deb10u3) ...
Selecting previously unselected package libpsl5:amd64.
Preparing to unpack .../11-libpsl5_0.20.2-2_amd64.deb ...
Unpacking libpsl5:amd64 (0.20.2-2) ...
Selecting previously unselected package librtmp1:amd64.
Preparing to unpack .../12-librtmp1_2.4+20151223.gitfa8646d.1-2_amd64.deb ...
Unpacking librtmp1:amd64 (2.4+20151223.gitfa8646d.1-2) ...
Selecting previously unselected package libssh2-1:amd64.
Preparing to unpack .../13-libssh2-1_1.8.0-2.1+deb10u1_amd64.deb ...
Unpacking libssh2-1:amd64 (1.8.0-2.1+deb10u1) ...
Selecting previously unselected package libcurl4:amd64.
Preparing to unpack .../14-libcurl4_7.64.0-4+deb10u9_amd64.deb ...
Unpacking libcurl4:amd64 (7.64.0-4+deb10u9) ...
Selecting previously unselected package curl.
Preparing to unpack .../15-curl_7.64.0-4+deb10u9_amd64.deb ...
Unpacking curl (7.64.0-4+deb10u9) ...
Selecting previously unselected package libsasl2-modules:amd64.
Preparing to unpack .../16-libsasl2-modules_2.1.27+dfsg-1+deb10u2_amd64.deb ...
Unpacking libsasl2-modules:amd64 (2.1.27+dfsg-1+deb10u2) ...
Selecting previously unselected package publicsuffix.
Preparing to unpack .../17-publicsuffix_20220811.1734-0+deb10u1_all.deb ...
Unpacking publicsuffix (20220811.1734-0+deb10u1) ...
Setting up libkeyutils1:amd64 (1.6-6) ...
Setting up libpsl5:amd64 (0.20.2-2) ...
Setting up libsasl2-modules:amd64 (2.1.27+dfsg-1+deb10u2) ...
Setting up libnghttp2-14:amd64 (1.36.0-2+deb10u3) ...
Setting up krb5-locales (1.17-3+deb10u6) ...
Setting up libldap-common (2.4.47+dfsg-3+deb10u7) ...
Setting up libkrb5support0:amd64 (1.17-3+deb10u6) ...
Setting up libsasl2-modules-db:amd64 (2.1.27+dfsg-1+deb10u2) ...
Setting up librtmp1:amd64 (2.4+20151223.gitfa8646d.1-2) ...
Setting up libk5crypto3:amd64 (1.17-3+deb10u6) ...
Setting up libsasl2-2:amd64 (2.1.27+dfsg-1+deb10u2) ...
Setting up libssh2-1:amd64 (1.8.0-2.1+deb10u1) ...
Setting up libkrb5-3:amd64 (1.17-3+deb10u6) ...
Setting up publicsuffix (20220811.1734-0+deb10u1) ...
Setting up libldap-2.4-2:amd64 (2.4.47+dfsg-3+deb10u7) ...
Setting up libgssapi-krb5-2:amd64 (1.17-3+deb10u6) ...
Setting up libcurl4:amd64 (7.64.0-4+deb10u9) ...
Setting up curl (7.64.0-4+deb10u9) ...
Processing triggers for libc-bin (2.28-10) ...
# curl localhost:18080/hello
Hello created by Manoj and Tiju# ps
/bin/sh: 3: ps: not found
# top
/bin/sh: 4: top: not found
#

---------------------------------------------

## Docker basic Command
PS C:\Users\u> docker search hello
NAME DESCRIPTION STARS OFFICIAL
nginxdemos/hello NGINX webserver that serves a simple page co… 157
silasbw/hello 0
bihero/hello 'Hello' word microservice 0
cy4n/hello springboot hello playground 1
circleci/hello This image is for internal use 0
widdix/hello Hello World! 0
kelseyhightower/hello 10
johanburati/hello Http server for testing traffic between mach… 0
raeffs/hello 0
lizrice/hello Simple examples of containerizing Golang cod… 0
cfgarden/hello 0
anafomin/hello 0
corticoai/hello 0
monopole/hello 1
mulspace/hello Hello docker for web. It will run python web… 0
tomvo12/hello 0
sigmadev/hello 0
ovhplatform/hello 1
jeromebaude/hello 0
singatwaria/hello 0
treeder/hello 0
cloudecho/hello Hello 0
acarmack/hello 0
chiphwang/hello 0
tanzufun/hello 1
PS C:\Users\u> docker pull hello-world
Using default tag: latest
latest: Pulling from library/hello-world
c1ec31eb5944: Pull complete
Digest: sha256:91fb4b041da273d5a3273b6d587d62d518300a6ad268b28628f74997b93171b2
Status: Downloaded newer image for hello-world:latest
docker.io/library/hello-world:latest

What's next:
View a summary of image vulnerabilities and recommendations → docker scout quickview hello-world
PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
rmanojcse06/spring-boot-hello 0.0.1 9d4fd7dce456 4 days ago 420MB
my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
tiju/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
varghese25/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
yourusername/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
gcr.io/k8s-minikube/kicbase v0.0.45 aeed0e1d4642 2 weeks ago 1.28GB
postgres latest b781f3a53e61 6 weeks ago 432MB
postgres 13.16-alpine3.20 ed06eaccad7e 6 weeks ago 238MB
hello-world latest d2c94e258dcb 16 months ago 13.3kB
openjdk 17-jdk-alpine 264c9bdce361 3 years ago 326MB
PS C:\Users\u> docker rmi hello-world
Untagged: hello-world:latest
Untagged: hello-world@sha256:91fb4b041da273d5a3273b6d587d62d518300a6ad268b28628f74997b93171b2
Deleted: sha256:d2c94e258dcb3c5ac2798d32e1249e42ef01cba4841c2234249495f87264ac5a
Deleted: sha256:ac28800ec8bb38d5c35b49d45a6ac4777544941199075dff8c4eb63e093aa81e
PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
rmanojcse06/spring-boot-hello 0.0.1 9d4fd7dce456 4 days ago 420MB
tiju/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
varghese25/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
yourusername/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
gcr.io/k8s-minikube/kicbase v0.0.45 aeed0e1d4642 2 weeks ago 1.28GB
postgres latest b781f3a53e61 6 weeks ago 432MB
postgres 13.16-alpine3.20 ed06eaccad7e 6 weeks ago 238MB
openjdk 17-jdk-alpine 264c9bdce361 3 years ago 326MB
PS C:\Users\u> docker pull hello-world
Using default tag: latest
latest: Pulling from library/hello-world
c1ec31eb5944: Pull complete
Digest: sha256:91fb4b041da273d5a3273b6d587d62d518300a6ad268b28628f74997b93171b2
Status: Downloaded newer image for hello-world:latest
docker.io/library/hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a2a3a435f387 hello-world "/hello" 44 seconds ago Exited (0) 39 seconds ago relaxed_borg
PS C:\Users\u> docker run hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
044c1cf201d4 hello-world "/hello" 12 seconds ago Exited (0) 8 seconds ago youthful_bhabha
a2a3a435f387 hello-world "/hello" About a minute ago Exited (0) About a minute ago relaxed_borg
PS C:\Users\u> docker run --name myHello hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cd4adf9301a4 hello-world "/hello" 13 seconds ago Exited (0) 9 seconds ago myHello
044c1cf201d4 hello-world "/hello" 2 minutes ago Exited (0) About a minute ago youthful_bhabha
a2a3a435f387 hello-world "/hello" 3 minutes ago Exited (0) 3 minutes ago relaxed_borg
PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
rmanojcse06/spring-boot-hello 0.0.1 9d4fd7dce456 4 days ago 420MB
my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
tiju/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
varghese25/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
yourusername/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
gcr.io/k8s-minikube/kicbase v0.0.45 aeed0e1d4642 2 weeks ago 1.28GB
postgres latest b781f3a53e61 6 weeks ago 432MB
postgres 13.16-alpine3.20 ed06eaccad7e 6 weeks ago 238MB
hello-world latest d2c94e258dcb 16 months ago 13.3kB
openjdk 17-jdk-alpine 264c9bdce361 3 years ago 326MB
PS C:\Users\u> docker rmi hello-world
Error response from daemon: conflict: unable to remove repository reference "hello-world" (must force) - container a2a3a435f387 is using its referenced image d2c94e258dcb
PS C:\Users\u> docker rm cd4adf9301a4
cd4adf9301a4
PS C:\Users\u> docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
PS C:\Users\u> docker ls
docker: 'ls' is not a docker command.
See 'docker --help'
PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
044c1cf201d4 hello-world "/hello" 4 minutes ago Exited (0) 4 minutes ago youthful_bhabha
a2a3a435f387 hello-world "/hello" 6 minutes ago Exited (0) 6 minutes ago relaxed_borg
PS C:\Users\u> docker run --name TijuHello hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
af2ad1b8f827 hello-world "/hello" 9 seconds ago Exited (0) 5 seconds ago TijuHello
044c1cf201d4 hello-world "/hello" 5 minutes ago Exited (0) 5 minutes ago youthful_bhabha
a2a3a435f387 hello-world "/hello" 6 minutes ago Exited (0) 6 minutes ago relaxed_borg
PS C:\Users\u> docker rm af2ad1b8f827
af2ad1b8f827
PS C:\Users\u> docker ls
docker: 'ls' is not a docker command.
See 'docker --help'
PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
rmanojcse06/spring-boot-hello 0.0.1 9d4fd7dce456 4 days ago 420MB
my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
tiju/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
varghese25/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
yourusername/my-spring-boot-app latest 1dfccde513ea 4 days ago 351MB
gcr.io/k8s-minikube/kicbase v0.0.45 aeed0e1d4642 2 weeks ago 1.28GB
postgres latest b781f3a53e61 6 weeks ago 432MB
postgres 13.16-alpine3.20 ed06eaccad7e 6 weeks ago 238MB
hello-world latest d2c94e258dcb 16 months ago 13.3kB
openjdk 17-jdk-alpine 264c9bdce361 3 years ago 326MB
PS C:\Users\u> docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
044c1cf201d4 hello-world "/hello" 6 minutes ago Exited (0) 6 minutes ago youthful_bhabha
a2a3a435f387 hello-world "/hello" 7 minutes ago Exited (0) 7 minutes ago relaxed_borg
PS C:\Users\u> docker rmi hello-world
Error response from daemon: conflict: unable to remove repository reference "hello-world" (must force) - container 044c1cf201d4 is using its referenced image d2c94e258dcb
PS C:\Users\u> docker rm 044c1cf201d4
044c1cf201d4
PS C:\Users\u> docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a2a3a435f387 hello-world "/hello" 10 minutes ago Exited (0) 10 minutes ago relaxed_borg
PS C:\Users\u> docker rm a2a3a435f387
a2a3a435f387
PS C:\Users\u> docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
PS C:\Users\u> docker run hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

PS C:\Users\u> docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ae71337af281 hello-world "/hello" 10 seconds ago Exited (0) 6 seconds ago gifted_kirch
PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ae71337af281 hello-world "/hello" About a minute ago Exited (0) About a minute ago gifted_kirch
PS C:\Users\u> docker run alpine ls
Unable to find image 'alpine:latest' locally
latest: Pulling from library/alpine
43c4264eed91: Already exists
Digest: sha256:beefdbd8a1da6d2915566fde36db9db0b524eb737fc57cd1367effd16dc0d06d
Status: Downloaded newer image for alpine:latest
bin
dev
etc
home
lib
media
mnt
opt
proc
root
run
sbin
srv
sys
tmp
usr
var
PS C:\Users\u> docker run -it alphine sh
Unable to find image 'alphine:latest' locally
docker: Error response from daemon: pull access denied for alphine, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
PS C:\Users\u> docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
PS C:\Users\u> docker run -it alphine sh
Unable to find image 'alphine:latest' locally
docker: Error response from daemon: pull access denied for alphine, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
PS C:\Users\u> docker exec it ae71337af281
Error response from daemon: No such container: it
PS C:\Users\u>

--------------------------------------------------------------------------

##Docker Command & Practise

Docker : https://www.youtube.com/watch?v=0O_FxUMCmYc

Practical introduction to docker architecture, commands, images and containers.
- docker pull
- docker run
- docker start
- docker exec
- docker stop
- docker restart

docker pull hello-world #Pull the images#

docker image ls #List the image#

docker rmi hello-world #rmi remove image hello-world#

docker run hello-world #Execute OutPut display result as: Hello from Docker! and exit from the container #

docker ps #Show running #

docker ps -a #showa all running container Even Stopped Container#

docker run --name Varghese25 hello-world #this used created my Own name container as varghese25 to pulled hello-world image #

docker container ls -a (docker ps -a)

docker run hello-world #Unaavailable locally it pull from docker registry it download image and container give us the outPut#

Alpine

docker run alpine

docker image ls

docker ps -a

docker run alpine ls

docker ps -a

Open in Terminal 1
docker run -it alpine sh (it interactive sh shell commands can be writter)
#
Open in Terminal 2
We can see the Termainal 1 --> its say that shell is running Status is Up 2 minutes
C:\Users\u>docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b33fa8702f8c alpine "sh" 2 minutes ago Up 2 minutes confident_bell

# bin dev etc home lib media mnt opt proc root run sbin srv sys tmp usr var

# ls
/ # apk add wget
fetch https://dl-cdn.alpinelinux.org/alpine/v3.20/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.20/community/x86_64/APKINDEX.tar.gz
(1/4) Installing libunistring (1.2-r0)
(2/4) Installing libidn2 (2.3.7-r0)
(3/4) Installing pcre2 (10.43-r0)
(4/4) Installing wget (1.24.5-r0)
Executing busybox-1.36.1-r29.trigger
OK: 11 MiB in 18 packages
/ #exit

docker ps #once exit can't se the working container will be closed#

docker start c9f938e4888d #To start container with container Id or Name Example alphine##

Open New Termainal or Existing Terminal to check the container Working or not

docker exec -it b33fa8702f8c sh #Exec -it to run again the container#

if you stop docker running container will terminate from all terminal

docker restart b33fa8702f8c #Restart the conatiner with conatiner name#
----------------------------------------------------------------------------------------------------------

creating images and sharing

docker pull httpd

docker run -d --name WebServerTiju -p 9090:80 httpd #port exposing 9090:80 localhost. webservers by default listen 80 port run's inside container which will forward local host 9090 #

PS C:\Users\u> docker run -d --name WebServerTiju -p 9090:80 httpd

229f96783dce643bc64650e3ae138a5324390b468a93ca00be5aedcea498f03d

PS C:\Users\u> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
229f96783dce httpd "httpd-foreground" 6 minutes ago Up 6 minutes 0.0.0.0:9090->80/tcp WebServerTiju

Step 1: Go any browser
Step 2: http://localhost:9090/
Step 3: Output will display As "It Works"

docker exec -it WebServerTiju bash
root@229f96783dce:/usr/local/apache2# cd htdocs/
root@229f96783dce:/usr/local/apache2/htdocs# ls
index.html
root@229f96783dce:/usr/local/apache2/htdocs#

root@229f96783dce:/usr/local/apache2/htdocs# cat index.html

It works!

root@229f96783dce:/usr/local/apache2/htdocs# cat > mypage.html
This is my Docker Page and Commands #Control D for exit fromTyping#
root@229f96783dce:/usr/local/apache2/htdocs#

OutPut
http://localhost:9090/mypage.html

This is my Docker Page and Commands

root@229f96783dce:/usr/local/apache2/htdocs# exit
exit

What's next:
Try Docker Debug for seamless, persistent debugging tools in any container or image → docker debug WebServerTiju
Learn more at https://docs.docker.com/go/debug-cli/

PS C:\Users\u> docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
229f96783dce httpd "httpd-foreground" 18 minutes ago Up 18 minutes 0.0.0.0:9090->80/tcp WebServerTiju

---------------Add - A Chnaged -C

PS C:\Users\u> docker diff WebServerTiju
C /usr
C /usr/local
C /usr/local/apache2
C /usr/local/apache2/htdocs
A /usr/local/apache2/htdocs/mypage.html
C /usr/local/apache2/logs
A /usr/local/apache2/logs/httpd.pid
C /root
A /root/.bash_history
PS C:\Users\u>

PS C:\Users\u> docker commit WebServerTiju (New Image Id Created)
sha256:b988aa501844a108ab58efcca1eb573fcf728ff3876f819a5ad4a64156bb7664
s

PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
b988aa501844 18 seconds ago 148MB #new imageId match#

PS C:\Users\u> docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
229f96783dce httpd "httpd-foreground" 28 minutes ago Up 28 minutes 0.0.0.0:9090->80/tcp WebServerTiju

PS C:\Users\u> docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
229f96783dce httpd "httpd-foreground" 28 minutes ago Up 28 minutes 0.0.0.0:9090->80/tcp WebServerTiju
PS C:\Users\u> docker stop WebServerTiju
WebServerTiju
PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
b988aa501844 10 minutes ago 148MB
rmanojcse06/spring-boot-hello 0.0.1 9d4fd7dce456 6 days ago 420MB
tiju/my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
varghese25/my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
yourusername/my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
alpine latest 91ef0af61f39 2 weeks ago 7.8MB
gcr.io/k8s-minikube/kicbase v0.0.45 aeed0e1d4642 2 weeks ago 1.28GB
postgres latest b781f3a53e61 6 weeks ago 432MB
postgres 13.16-alpine3.20 ed06eaccad7e 6 weeks ago 238MB
httpd latest 9cb0a2315602 2 months ago 148MB
hello-world latest d2c94e258dcb 17 months ago 13.3kB
openjdk 17-jdk-alpine 264c9bdce361 3 years ago 326MB
PS C:\Users\u> docker run -d --name myOwnServer -p 5070:80 b988aa501844
1d3c8532d2082e0e595c2ef617ca1ce890c532ead3c8cc2dbab6742dd587c20b

PS C:\Users\u> docker ps #Our Own Image ID#
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1d3c8532d208 b988aa501844 "httpd-foreground" About a minute ago Up About a minute 0.0.0.0:5070->80/tcp myOwnServer

http://localhost:5070/mypage.html

This is my Docker Page and Commands

PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
b988aa501844 14 minutes ago 148MB

PS C:\Users\u> docker tag b988aa501844 myWebserver:Version1

Error parsing reference: "myWebserver:Version1" is not a valid repository/tag: invalid reference format: repository name (library/myWebserver) must be lowercase
PS C:\Users\u> docker tag b988aa501844 mywebserver:version1

PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
mywebserver version1 b988aa501844 16 minutes ago 148MB

PS C:\Users\u> docker save mywebserver:version1 > mywebserver-version1.tar #Alternative COMMAND both does samework docker save -o mywebserver-version1.tar #

PS C:\Users\u> ls

Directory: C:\Users\u

Mode LastWriteTime Length Name
---- ------------- ------ ----

-a---- 9/23/24 3:22 PM 139280510 mywebserver-version1.tar
-a---- 9/20/24 2:18 PM 325 service.yaml

docker load -i mywebserver-version1.tar // To share file to other's it similar to pull commmad to check our outPut to view locally with send to docker Hub

PS C:\Users\u> docker login
Authenticating with existing credentials...
Login Succeeded
PS C:\Users\u> docker push varghese25/mywebserver:version1
The push refers to repository [docker.io/varghese25/mywebserver]
An image does not exist locally with the tag: varghese25/mywebserver
PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
mywebserver version1 b988aa501844 32 minutes ago 148MB
rmanojcse06/spring-boot-hello 0.0.1 9d4fd7dce456 6 days ago 420MB
my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
tiju/my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
varghese25/my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
yourusername/my-spring-boot-app latest 1dfccde513ea 6 days ago 351MB
alpine latest 91ef0af61f39 2 weeks ago 7.8MB
gcr.io/k8s-minikube/kicbase v0.0.45 aeed0e1d4642 2 weeks ago 1.28GB
postgres latest b781f3a53e61 6 weeks ago 432MB
postgres 13.16-alpine3.20 ed06eaccad7e 6 weeks ago 238MB
httpd latest 9cb0a2315602 2 months ago 148MB
hello-world latest d2c94e258dcb 17 months ago 13.3kB
openjdk 17-jdk-alpine 264c9bdce361 3 years ago 326MB

PS C:\Users\u> docker tag mywebserver:version1 varghese25/mywebserver

PS C:\Users\u> docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
mywebserver version1 b988aa501844 38 minutes ago 148MB
varghese25/mywebserver latest b988aa501844 38 minutes ago 148MB

------------------------------------------------------------------------------------------------------------------------

##Date 25-09-2024

Kubernetes (k8S) from k to s 8 letters in short k8s

kubectl (client) #Master server which talk to k8s Api response shows as output similiar to docker tools running docker machine showed us docker out same kubectl#

minikube (single-node cluster)

kubeadm

node -> computer machine or virtural machine

pod -> container

##Linux(Ubutu)

varghese@DESKTOP-OODIU93:~$ alias k=kubectl

varghese@DESKTOP-OODIU93:~$ k version --client

Client Version: v1.30.2

Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3

varghese@DESKTOP-OODIU93:~$ pwd

/home/varghese

varghese@DESKTOP-OODIU93:~$

-------------------------------------------------------------------------------------

Date 26-09-2024 K8s

##Topic: Minikube with single Node(Ip System) cluster Created & Kubectl Config and with node wheather Its communicting or not checked.

(https://www.youtube.com/watch?v=7g5HLFg9QMI&list=PL5eh956CtlETZMJEMR866PCS2YNg_3O6d).

PS C:\Users\u> Set-Alias m minikube

PS C:\Users\u> minikube delete
* Deleting "minikube" in docker ...
* Deleting container "minikube" ...
* Removing C:\Users\u\.minikube\machines\minikube ...
* Removed all traces of the "minikube" cluster.

PS C:\Users\u> minikube update-check
CurrentVersion: v1.34.0
LatestVersion: v1.34.0

PS C:\Users\u> m start --driver=docker
* minikube v1.34.0 on Microsoft Windows 10 Pro 10.0.19045.4957 Build 19045.4957
* Using the docker driver based on user configuration
* Using Docker Desktop driver with root privileges
* Starting "minikube" primary control-plane node in "minikube" cluster
* Pulling base image v0.0.45 ...
* Creating docker container (CPUs=4, Memory=3000MB) ...
! Failing to connect to https://registry.k8s.io/ from inside the minikube container
* To pull new external images, you may need to configure a proxy: https://minikube.sigs.k8s.io/docs/reference/networking/proxy/
* Preparing Kubernetes v1.31.0 on Docker 27.2.0 ...
- Generating certificates and keys ...
- Booting up control plane ...
- Configuring RBAC rules ...
* Configuring bridge CNI (Container Networking Interface) ...
* Verifying Kubernetes components...
- Using image gcr.io/k8s-minikube/storage-provisioner:v5
* Enabled addons: storage-provisioner, default-storageclass
* Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> m status

minikube
type: Control Plane
host: Running
kubelet: Running
apiserver: Running
kubeconfig: Configured

PS C:\Users\u> m version
minikube version: v1.34.0
commit: 210b148df93a80eb872ecbeb7e35281b3c582c61

PS C:\Users\u> docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fbc9c3817d01 gcr.io/k8s-minikube/kicbase:v0.0.45 "/usr/local/bin/entr…" 49 minutes ago Up 49 minutes 127.0.0.1:51682->22/tcp, 127.0.0.1:51678->2376/tcp, 127.0.0.1:51680->5000/tcp, 127.0.0.1:51681->8443/tcp, 127.0.0.1:51679->32443/tcp minikube
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> docker exec -it minikube bash
root@minikube:/#exit
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> m ssh
docker@minikube:~$
PS C:\Users\u> m ssh
docker@minikube:~$ #docker@minikube is a node other words virtual machine#
docker@minikube:~$
docker@minikube:~$
docker@minikube:~$
docker@minikube:~$ docker ps
docker@minikube:~$ docker ps #Master node how container running we can check below#
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8280c3feab8d 6e38f40d628d "/storage-provisioner" 50 minutes ago Up 50 minutes k8s_storage-provisioner_storage-provisioner_kube-system_c0616760-dc06-4863-b269-b6d222d729ca_0
0d4c606ed0cc cbb01a7bd410 "/coredns -conf /etc…" 50 minutes ago Up 50 minutes k8s_coredns_coredns-6f6b679f8f-h49rl_kube-system_ab450272-2c88-47b8-a0ea-4d801893e276_0
6c7bdd786781 ad83b2ca7b09 "/usr/local/bin/kube…" 50 minutes ago Up 50 minutes k8s_kube-proxy_kube-proxy-t5sx7_kube-system_36148bed-87f6-4308-9c3d-4a29790cea65_0
dc91a9809039 registry.k8s.io/pause:3.10 "/pause" 50 minutes ago Up 50 minutes k8s_POD_storage-provisioner_kube-system_c0616760-dc06-4863-b269-b6d222d729ca_0
37143475f67e registry.k8s.io/pause:3.10 "/pause" 50 minutes ago Up 50 minutes k8s_POD_coredns-6f6b679f8f-h49rl_kube-system_ab450272-2c88-47b8-a0ea-4d801893e276_0
118c73c9a2c9 registry.k8s.io/pause:3.10 "/pause" 50 minutes ago Up 50 minutes k8s_POD_kube-proxy-t5sx7_kube-system_36148bed-87f6-4308-9c3d-4a29790cea65_0
09cf1515a99e 045733566833 "kube-controller-man…" 51 minutes ago Up 51 minutes k8s_kube-controller-manager_kube-controller-manager-minikube_kube-system_40f5f661ab65f2e4bfe41ac2993c01de_2
adbbc2825349 604f5db92eaa "kube-apiserver --ad…" 52 minutes ago Up 52 minutes k8s_kube-apiserver_kube-apiserver-minikube_kube-system_9e315b3a91fa9f6f7463439d9dac1a56_0
fc17a65ca445 2e96e5913fc0 "etcd --advertise-cl…" 52 minutes ago Up 52 minutes k8s_etcd_etcd-minikube_kube-system_a5363f4f31e043bdae3c93aca4991903_0
8b118bddf2ce 1766f54c897f "kube-scheduler --au…" 52 minutes ago Up 52 minutes k8s_kube-scheduler_kube-scheduler-minikube_kube-system_e039200acb850c82bb901653cc38ff6e_0
6838c9099afe registry.k8s.io/pause:3.10 "/pause" 53 minutes ago Up 52 minutes k8s_POD_kube-scheduler-minikube_kube-system_e039200acb850c82bb901653cc38ff6e_0
0d0d149f8c0a registry.k8s.io/pause:3.10 "/pause" 53 minutes ago Up 52 minutes k8s_POD_kube-apiserver-minikube_kube-system_9e315b3a91fa9f6f7463439d9dac1a56_0
df868b83e320 registry.k8s.io/pause:3.10 "/pause" 53 minutes ago Up 52 minutes k8s_POD_etcd-minikube_kube-system_a5363f4f31e043bdae3c93aca4991903_0
f64c0a3abc02 registry.k8s.io/pause:3.10 "/pause" 53 minutes ago Up 52 minutes k8s_POD_kube-controller-manager-minikube_kube-system_40f5f661ab65f2e4bfe41ac2993c01de_0
docker@minikube:~$
docker@minikube:~$ #CTRL+D#
logout
PS C:\Users\u>
PS C:\Users\u> m kubectl -- get pods #this command execute minikube container inside the kubctl tool not available minikube for first time it will install #
> kubectl.exe.sha256: 64 B / 64 B [---------------------] 100.00% ? p/s 0s
> kubectl.exe: 55.20 MiB / 55.20 MiB [------] 100.00% 488.35 KiB p/s 1m56s
No resources found in default namespace.
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> kubectl get pods #Runn's in host kubctl #
No resources found in default namespace.
PS C:\Users\u>
PS C:\Users\u> Set-Alias k kubectl
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k config view
apiVersion: v1
clusters:
- cluster:
certificate-authority: C:\Users\u\.minikube\ca.crt
extensions:
- extension:
last-update: Thu, 26 Sep 2024 13:15:17 EDT
provider: minikube.sigs.k8s.io
version: v1.34.0
name: cluster_info
server: https://127.0.0.1:51681 #Only one node which is my System Ip going to work we can any number of node #
name: minikube
contexts:
- context:
cluster: minikube
extensions:
- extension:
last-update: Thu, 26 Sep 2024 13:15:17 EDT
provider: minikube.sigs.k8s.io
version: v1.34.0
name: context_info
namespace: default
user: minikube
name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
user:
client-certificate: C:\Users\u\.minikube\profiles\minikube\client.crt
client-key: C:\Users\u\.minikube\profiles\minikube\client.key
PS C:\Users\u>

-------------------------------------------------------------------------------------------------

##Date 28-09-2024
##Follow this first step 1 & Then go 2 #How To create Pod & Deploy in webBrowser#

#first step 1 Start driver Docker#

PS C:\Users\u> m start --driver=docker
* minikube v1.34.0 on Microsoft Windows 10 Pro 10.0.19045.4957 Build 19045.4957
* Using the docker driver based on existing profile
* Starting "minikube" primary control-plane node in "minikube" cluster
* Pulling base image v0.0.45 ...
* Updating the running docker "minikube" container ...
! Failing to connect to https://registry.k8s.io/ from inside the minikube container
* To pull new external images, you may need to configure a proxy: https://minikube.sigs.k8s.io/docs/reference/networking/proxy/
* Preparing Kubernetes v1.31.0 on Docker 27.2.0 ...
* Verifying Kubernetes components...
- Using image gcr.io/k8s-minikube/storage-provisioner:v5
* Enabled addons: storage-provisioner, default-storageclass
* Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k get nodes
NAME STATUS ROLES AGE VERSION #Roles "Control-plane" Terminionlog changed by k8s before it was Roles "master"#
minikube Ready control-plane 2d v1.31.0

#nodes in wide Format#

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
minikube Ready control-plane 2d v1.31.0 192.168.49.2 Ubuntu 22.04.4 LTS 5.15.153.1-microsoft-standard-WSL2 docker://27.2.0

#nodes in Yaml Format#

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k get nodes -o yaml
apiVersion: v1
items:
- apiVersion: v1
kind: Node
metadata:
annotations:
kubeadm.alpha.kubernetes.io/cri-socket: unix:///var/run/cri-dockerd.sock
node.alpha.kubernetes.io/ttl: "0"
volumes.kubernetes.io/controller-managed-attach-detach: "true"
creationTimestamp: "2024-09-26T17:14:17Z"
labels:
beta.kubernetes.io/arch: amd64
beta.kubernetes.io/os: linux
kubernetes.io/arch: amd64
kubernetes.io/hostname: minikube
kubernetes.io/os: linux
minikube.k8s.io/commit: 210b148df93a80eb872ecbeb7e35281b3c582c61
minikube.k8s.io/name: minikube
minikube.k8s.io/primary: "true"
minikube.k8s.io/updated_at: 2024_09_26T13_15_14_0700
minikube.k8s.io/version: v1.34.0
node-role.kubernetes.io/control-plane: ""
node.kubernetes.io/exclude-from-external-load-balancers: ""
name: minikube
resourceVersion: "6351"
uid: dd11d68b-43be-4b9a-88d1-dc506727abea
spec:
podCIDR: 10.244.0.0/24
podCIDRs:
- 10.244.0.0/24
status:
addresses:
- address: 192.168.49.2
type: InternalIP
- address: minikube
type: Hostname
allocatable:
cpu: "4"
ephemeral-storage: 1055762868Ki
hugepages-1Gi: "0"
hugepages-2Mi: "0"
memory: 3978116Ki
pods: "110"
capacity:
cpu: "4"
ephemeral-storage: 1055762868Ki
hugepages-1Gi: "0"
hugepages-2Mi: "0"
memory: 3978116Ki
pods: "110"
conditions:
- lastHeartbeatTime: "2024-09-28T17:33:20Z"
lastTransitionTime: "2024-09-26T17:14:17Z"
message: kubelet has sufficient memory available
reason: KubeletHasSufficientMemory
status: "False"
type: MemoryPressure
- lastHeartbeatTime: "2024-09-28T17:33:20Z"
lastTransitionTime: "2024-09-26T17:14:17Z"
message: kubelet has no disk pressure
reason: KubeletHasNoDiskPressure
status: "False"
type: DiskPressure
- lastHeartbeatTime: "2024-09-28T17:33:20Z"
lastTransitionTime: "2024-09-26T17:14:17Z"
message: kubelet has sufficient PID available
reason: KubeletHasSufficientPID
status: "False"
type: PIDPressure
- lastHeartbeatTime: "2024-09-28T17:33:20Z"
lastTransitionTime: "2024-09-26T17:14:18Z"
message: kubelet is posting ready status
reason: KubeletReady
status: "True"
type: Ready
daemonEndpoints:
kubeletEndpoint:
Port: 10250
images:
- names:
- registry.k8s.io/etcd@sha256:a6dc63e6e8cfa0307d7851762fa6b629afb18f28d8aa3fab5a6e91b4af60026a
- registry.k8s.io/etcd:3.5.15-0
sizeBytes: 147945345
- names:
- registry.k8s.io/kube-apiserver@sha256:470179274deb9dc3a81df55cfc24823ce153147d4ebf2ed649a4f271f51eaddf
- registry.k8s.io/kube-apiserver:v1.31.0
sizeBytes: 94175876
- names:
- registry.k8s.io/kube-proxy@sha256:c727efb1c6f15a68060bf7f207f5c7a765355b7e3340c513e582ec819c5cd2fe
- registry.k8s.io/kube-proxy:v1.31.0
sizeBytes: 91471299
- names:
- registry.k8s.io/kube-controller-manager@sha256:f6f3c33dda209e8434b83dacf5244c03b59b0018d93325ff21296a142b68497d
- registry.k8s.io/kube-controller-manager:v1.31.0
sizeBytes: 88380387
- names:
- registry.k8s.io/kube-scheduler@sha256:96ddae9c9b2e79342e0551e2d2ec422c0c02629a74d928924aaa069706619808
- registry.k8s.io/kube-scheduler:v1.31.0
sizeBytes: 67363811
- names:
- registry.k8s.io/coredns/coredns@sha256:1eeb4c7316bacb1d4c8ead65571cd92dd21e27359f0d4917f1a5822a73b75db1
- registry.k8s.io/coredns/coredns:v1.11.1
sizeBytes: 59820619
- names:
- gcr.io/k8s-minikube/storage-provisioner@sha256:18eb69d1418e854ad5a19e399310e52808a8321e4c441c1dddad8977a0d7a944
- gcr.io/k8s-minikube/storage-provisioner:v5
sizeBytes: 31465472
- names:
- registry.k8s.io/pause@sha256:ee6521f290b2168b6e0935a181d4cff9be1ac3f505666ef0e3c98fae8199917a
- registry.k8s.io/pause:3.10
sizeBytes: 735760
nodeInfo:
architecture: amd64
bootID: 9dffcac1-96ea-4361-bdf7-cfc5a1fc1e08
containerRuntimeVersion: docker://27.2.0
kernelVersion: 5.15.153.1-microsoft-standard-WSL2
kubeProxyVersion: ""
kubeletVersion: v1.31.0
machineID: e5854f5e7e614bd7bda57f7ae2708452
operatingSystem: linux
osImage: Ubuntu 22.04.4 LTS
systemUUID: e5854f5e7e614bd7bda57f7ae2708452
kind: List
metadata:
resourceVersion: ""

#nodes in Json Format#

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

PS C:\Users\u> k get nodes -o json
{
"apiVersion": "v1",
"items": [
{
"apiVersion": "v1",
"kind": "Node",
"metadata": {
"annotations": {
"kubeadm.alpha.kubernetes.io/cri-socket": "unix:///var/run/cri-dockerd.sock",
"node.alpha.kubernetes.io/ttl": "0",
"volumes.kubernetes.io/controller-managed-attach-detach": "true"
},
"creationTimestamp": "2024-09-26T17:14:17Z",
"labels": {
"beta.kubernetes.io/arch": "amd64",
"beta.kubernetes.io/os": "linux",
"kubernetes.io/arch": "amd64",
"kubernetes.io/hostname": "minikube",
"kubernetes.io/os": "linux",
"minikube.k8s.io/commit": "210b148df93a80eb872ecbeb7e35281b3c582c61",
"minikube.k8s.io/name": "minikube",
"minikube.k8s.io/primary": "true",
"minikube.k8s.io/updated_at": "2024_09_26T13_15_14_0700",
"minikube.k8s.io/version": "v1.34.0",
"node-role.kubernetes.io/control-plane": "",
"node.kubernetes.io/exclude-from-external-load-balancers": ""
},
"name": "minikube",
"resourceVersion": "6351",
"uid": "dd11d68b-43be-4b9a-88d1-dc506727abea"
},
"spec": {
"podCIDR": "10.244.0.0/24",
"podCIDRs": [
"10.244.0.0/24"
]
},
"status": {
"addresses": [
{
"address": "192.168.49.2",
"type": "InternalIP"
},
{
"address": "minikube",
"type": "Hostname"
}
],
"allocatable": {
"cpu": "4",
"ephemeral-storage": "1055762868Ki",
"hugepages-1Gi": "0",
"hugepages-2Mi": "0",
"memory": "3978116Ki",
"pods": "110"
},
"capacity": {
"cpu": "4",
"ephemeral-storage": "1055762868Ki",
"hugepages-1Gi": "0",
"hugepages-2Mi": "0",
"memory": "3978116Ki",
"pods": "110"
},
"conditions": [
{
"lastHeartbeatTime": "2024-09-28T17:33:20Z",
"lastTransitionTime": "2024-09-26T17:14:17Z",
"message": "kubelet has sufficient memory available",
"reason": "KubeletHasSufficientMemory",
"status": "False",
"type": "MemoryPressure"
},
{
"lastHeartbeatTime": "2024-09-28T17:33:20Z",
"lastTransitionTime": "2024-09-26T17:14:17Z",
"message": "kubelet has no disk pressure",
"reason": "KubeletHasNoDiskPressure",
"status": "False",
"type": "DiskPressure"
},
{
"lastHeartbeatTime": "2024-09-28T17:33:20Z",
"lastTransitionTime": "2024-09-26T17:14:17Z",
"message": "kubelet has sufficient PID available",
"reason": "KubeletHasSufficientPID",
"status": "False",
"type": "PIDPressure"
},
{
"lastHeartbeatTime": "2024-09-28T17:33:20Z",
"lastTransitionTime": "2024-09-26T17:14:18Z",
"message": "kubelet is posting ready status",
"reason": "KubeletReady",
"status": "True",
"type": "Ready"
}
],
"daemonEndpoints": {
"kubeletEndpoint": {
"Port": 10250
}
},
"images": [
{
"names": [
"registry.k8s.io/etcd@sha256:a6dc63e6e8cfa0307d7851762fa6b629afb18f28d8aa3fab5a6e91b4af60026a",
"registry.k8s.io/etcd:3.5.15-0"
],
"sizeBytes": 147945345
},
{
"names": [
"registry.k8s.io/kube-apiserver@sha256:470179274deb9dc3a81df55cfc24823ce153147d4ebf2ed649a4f271f51eaddf",
"registry.k8s.io/kube-apiserver:v1.31.0"
],
"sizeBytes": 94175876
},
{
"names": [
"registry.k8s.io/kube-proxy@sha256:c727efb1c6f15a68060bf7f207f5c7a765355b7e3340c513e582ec819c5cd2fe",
"registry.k8s.io/kube-proxy:v1.31.0"
],
"sizeBytes": 91471299
},
{
"names": [
"registry.k8s.io/kube-controller-manager@sha256:f6f3c33dda209e8434b83dacf5244c03b59b0018d93325ff21296a142b68497d",
"registry.k8s.io/kube-controller-manager:v1.31.0"
],
"sizeBytes": 88380387
},
{
"names": [
"registry.k8s.io/kube-scheduler@sha256:96ddae9c9b2e79342e0551e2d2ec422c0c02629a74d928924aaa069706619808",
"registry.k8s.io/kube-scheduler:v1.31.0"
],
"sizeBytes": 67363811
},
{
"names": [
"registry.k8s.io/coredns/coredns@sha256:1eeb4c7316bacb1d4c8ead65571cd92dd21e27359f0d4917f1a5822a73b75db1",
"registry.k8s.io/coredns/coredns:v1.11.1"
],
"sizeBytes": 59820619
},
{
"names": [
"gcr.io/k8s-minikube/storage-provisioner@sha256:18eb69d1418e854ad5a19e399310e52808a8321e4c441c1dddad8977a0d7a944",
"gcr.io/k8s-minikube/storage-provisioner:v5"
],
"sizeBytes": 31465472
},
{
"names": [
"registry.k8s.io/pause@sha256:ee6521f290b2168b6e0935a181d4cff9be1ac3f505666ef0e3c98fae8199917a",
"registry.k8s.io/pause:3.10"
],
"sizeBytes": 735760
}
],
"nodeInfo": {
"architecture": "amd64",
"bootID": "9dffcac1-96ea-4361-bdf7-cfc5a1fc1e08",
"containerRuntimeVersion": "docker://27.2.0",
"kernelVersion": "5.15.153.1-microsoft-standard-WSL2",
"kubeProxyVersion": "",
"kubeletVersion": "v1.31.0",
"machineID": "e5854f5e7e614bd7bda57f7ae2708452",
"operatingSystem": "linux",
"osImage": "Ubuntu 22.04.4 LTS",
"systemUUID": "e5854f5e7e614bd7bda57f7ae2708452"
}
}
}
],
"kind": "List",
"metadata": {
"resourceVersion": ""
}
}
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k get pods
No resources found in default namespace.
PS C:\Users\u> k get deploy
No resources found in default namespace.
PS C:\Users\u> k get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 443/TCP 2d
PS C:\Users\u>

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> m ssh
docker@minikube:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1d92f31aeba0 6e38f40d628d "/storage-provisioner" 14 minutes ago Up 14 minutes k8s_storage-provisioner_storage-provisioner_kube-system_c0616760-dc06-4863-b269-b6d222d729ca_2
f6b8bb57e8f5 cbb01a7bd410 "/coredns -conf /etc…" 15 minutes ago Up 15 minutes k8s_coredns_coredns-6f6b679f8f-h49rl_kube-system_ab450272-2c88-47b8-a0ea-4d801893e276_1
3268ea340764 ad83b2ca7b09 "/usr/local/bin/kube…" 15 minutes ago Up 15 minutes k8s_kube-proxy_kube-proxy-t5sx7_kube-system_36148bed-87f6-4308-9c3d-4a29790cea65_1
docker@minikube:~$
docker@minikube:~$
docker@minikube:~$
docker@minikube:~$
docker@minikube:~$exit

#Default Containers#
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k get pod --namespace kube-system
NAME READY STATUS RESTARTS AGE Tip
coredns-6f6b679f8f-h49rl 1/1 Running 1 (49m ago) 2d #K8s internall created object has a prefix Deployment name"coredns" and suffix"6f6b679f8f" id #
etcd-minikube 1/1 Running 1 (49m ago) 2d #Dircet Pod name Given #
kube-apiserver-minikube 1/1 Running 1 (49m ago) 2d
kube-controller-manager-minikube 1/1 Running 3 (49m ago) 2d
kube-proxy-t5sx7 1/1 Running 1 (46h ago) 2d
kube-scheduler-minikube 1/1 Running 1 (49m ago) 2d
storage-provisioner 1/1 Running 2 (19m ago) 2d
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#k8s Created Deployment "Coredns" running in one replica coredns-6f6b679f8f-h49rl #
PS C:\Users\u> k get deploy --namespace kube-system
NAME READY UP-TO-DATE AVAILABLE AGE
coredns 1/1 1 1 2d

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#k8s above deployment created one replica Set #
PS C:\Users\u> k get replicaset --namespace kube-system
NAME DESIRED CURRENT READY AGE
coredns-6f6b679f8f 1 1 1 2d
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Object information use describe nodes#

PS C:\Users\u> k describe nodes
Name: minikube
Roles: control-plane
Labels: beta.kubernetes.io/arch=amd64
beta.kubernetes.io/os=linux
kubernetes.io/arch=amd64
kubernetes.io/hostname=minikube
kubernetes.io/os=linux
minikube.k8s.io/commit=210b148df93a80eb872ecbeb7e35281b3c582c61
minikube.k8s.io/name=minikube
minikube.k8s.io/primary=true
minikube.k8s.io/updated_at=2024_09_26T13_15_14_0700
minikube.k8s.io/version=v1.34.0
node-role.kubernetes.io/control-plane=
node.kubernetes.io/exclude-from-external-load-balancers=
Annotations: kubeadm.alpha.kubernetes.io/cri-socket: unix:///var/run/cri-dockerd.sock
node.alpha.kubernetes.io/ttl: 0
volumes.kubernetes.io/controller-managed-attach-detach: true
CreationTimestamp: Thu, 26 Sep 2024 13:14:17 -0400
Taints:
Unschedulable: false
Lease:
HolderIdentity: minikube
AcquireTime:
RenewTime: Sat, 28 Sep 2024 13:57:46 -0400
Conditions:
Type Status LastHeartbeatTime LastTransitionTime Reason Message
---- ------ ----------------- ------------------ ------ -------
MemoryPressure False Sat, 28 Sep 2024 13:53:44 -0400 Thu, 26 Sep 2024 13:14:17 -0400 KubeletHasSufficientMemory kubelet has sufficient memory available
DiskPressure False Sat, 28 Sep 2024 13:53:44 -0400 Thu, 26 Sep 2024 13:14:17 -0400 KubeletHasNoDiskPressure kubelet has no disk pressure
PIDPressure False Sat, 28 Sep 2024 13:53:44 -0400 Thu, 26 Sep 2024 13:14:17 -0400 KubeletHasSufficientPID kubelet has sufficient PID available
Ready True Sat, 28 Sep 2024 13:53:44 -0400 Thu, 26 Sep 2024 13:14:18 -0400 KubeletReady kubelet is posting ready status
Addresses:
InternalIP: 192.168.49.2
Hostname: minikube
Capacity:
cpu: 4
ephemeral-storage: 1055762868Ki
hugepages-1Gi: 0
hugepages-2Mi: 0
memory: 3978116Ki
pods: 110
Allocatable:
cpu: 4
ephemeral-storage: 1055762868Ki
hugepages-1Gi: 0
hugepages-2Mi: 0
memory: 3978116Ki
pods: 110
System Info:
Machine ID: e5854f5e7e614bd7bda57f7ae2708452
System UUID: e5854f5e7e614bd7bda57f7ae2708452
Boot ID: 9dffcac1-96ea-4361-bdf7-cfc5a1fc1e08
Kernel Version: 5.15.153.1-microsoft-standard-WSL2
OS Image: Ubuntu 22.04.4 LTS
Operating System: linux
Architecture: amd64
Container Runtime Version: docker://27.2.0
Kubelet Version: v1.31.0
Kube-Proxy Version:
PodCIDR: 10.244.0.0/24
PodCIDRs: 10.244.0.0/24
Non-terminated Pods: (7 in total)
Namespace Name CPU Requests CPU Limits Memory Requests Memory Limits Age
--------- ---- ------------ ---------- --------------- ------------- ---
kube-system coredns-6f6b679f8f-h49rl 100m (2%) 0 (0%) 70Mi (1%) 170Mi (4%) 2d
kube-system etcd-minikube 100m (2%) 0 (0%) 100Mi (2%) 0 (0%) 2d
kube-system kube-apiserver-minikube 250m (6%) 0 (0%) 0 (0%) 0 (0%) 2d
kube-system kube-controller-manager-minikube 200m (5%) 0 (0%) 0 (0%) 0 (0%) 2d
kube-system kube-proxy-t5sx7 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2d
kube-system kube-scheduler-minikube 100m (2%) 0 (0%) 0 (0%) 0 (0%) 2d
kube-system storage-provisioner 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2d
Allocated resources:
(Total limits may be over 100 percent, i.e., overcommitted.)
Resource Requests Limits
-------- -------- ------
cpu 750m (18%) 0 (0%)
memory 170Mi (4%) 170Mi (4%)
ephemeral-storage 0 (0%) 0 (0%)
hugepages-1Gi 0 (0%) 0 (0%)
hugepages-2Mi 0 (0%) 0 (0%)
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Starting 33m kube-proxy
Warning PossibleMemoryBackedVolumesOnDisk 35m kubelet The tmpfs noswap option is not supported. Memory-backed volumes (e.g. secrets, emptyDirs, etc.) might be swapped to disk and should no longer be considered secure.
Normal Starting 35m kubelet Starting kubelet.
Warning CgroupV1 35m kubelet Cgroup v1 support is in maintenance mode, please migrate to Cgroup v2.
Normal NodeHasSufficientMemory 35m (x7 over 35m) kubelet Node minikube status is now: NodeHasSufficientMemory
Normal NodeHasNoDiskPressure 35m (x7 over 35m) kubelet Node minikube status is now: NodeHasNoDiskPressure
Normal NodeHasSufficientPID 35m (x7 over 35m) kubelet Node minikube status is now: NodeHasSufficientPID
Normal NodeAllocatableEnforced 35m kubelet Updated Node Allocatable limit across pods
Normal RegisteredNode 34m node-controller Node minikube event: Registered Node minikube in Controller
PS C:\Users\u>

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

--------------------------------#How To create Pod#---------------------------------------------------------------------

PS C:\Users\u> k run npod --image=nginx:latest
pod/npod created
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Deleted nPod deploy deleted#
PS C:\Users\u> kubectl delete pod npod
pod "npod" deleted
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#k8s how to create pod name is www image name is nginx port used is 80#

PS C:\Users\u> k run www --image=nginx --port=80
pod/www created
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Pod Created in the name of www#

PS C:\Users\u> k get pods
NAME READY STATUS RESTARTS AGE
www 1/1 Running 0 77s
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#no deployments seen pervious we deleted npod deployement refer above#
PS C:\Users\u> k get deploy
No resources found in default namespace.
PS C:\Users\u>

#Using LoadBalance How to expose www pod from cluster to out side meaning external Broswe#
*ext - external

PS C:\Users\u> k expose pod www --port=80 --name=www-ext --type=LoadBalancer
service/www-ext exposed
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#service Command, Minikube working as container, as a cluster external-Ip doesnt have ip address to access#

PS C:\Users\u> k get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 443/TCP 2d1h
www-ext LoadBalancer 10.107.116.195 80:30922/TCP 116s
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#External ip willexpose with this command minikube conatiner which has www pod can extrally viewed in browser #

PS C:\Users\u> m service www-ext
|-----------|---------|-------------|---------------------------|
| NAMESPACE | NAME | TARGET PORT | URL |
|-----------|---------|-------------|---------------------------|
| default | www-ext | 80 | http://192.168.49.2:30922 |
|-----------|---------|-------------|---------------------------|
* Starting tunnel for service www-ext.
|-----------|---------|-------------|------------------------|
| NAMESPACE | NAME | TARGET PORT | URL |
|-----------|---------|-------------|------------------------|
| default | www-ext | | http://127.0.0.1:62306 |
|-----------|---------|-------------|------------------------|
* Opening service default/www-ext in default browser...
! Because you are using a Docker driver on windows, the terminal needs to be open to run it.

#CTRL + C#
* Stopped tunnel for service www-ext.

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> m service www-ext --url

http://127.0.0.1:62420 #Open this ip in browser#

! Because you are using a Docker driver on windows, the terminal needs to be open to run it.
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

--------------How Create Deployment same image nginx----------------------------
* wd = web deployment

PS C:\Users\u> k create deploy wd --image=nginx
deployment.apps/wd created
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> k get deploy
NAME READY UP-TO-DATE AVAILABLE AGE
wd 0/1 1 0 12s

#Sucessfully Created#

PS C:\Users\u> k get deploy
NAME READY UP-TO-DATE AVAILABLE AGE
wd 1/1 1 1 68s
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Two Pod running www & wd in minikube#

PS C:\Users\u> k get pods
NAME READY STATUS RESTARTS AGE
wd-6595c9877d-4qgzr 1/1 Running 0 2m37s
www 1/1 Running 0 30m

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#decelarativ method such as yaml file file path: C:\Users\u\deploy.yaml#

PS C:\Users\u> k apply -f deloy.yaml
Warning: resource deployments/wd is missing the kubectl.kubernetes.io/last-applied-configuration annotation which is required by kubectl apply. kubectl apply should only be used on resources created declaratively by either kubectl create --save-config or kubectl apply. The missing annotation will be patched automatically.
deployment.apps/wd configured

# We can see three Replicas #
PS C:\Users\u> k get deploy
NAME READY UP-TO-DATE AVAILABLE AGE
wd 3/3 3 3 34m
PS C:\Users\u>

# We can see three Replicas#

PS C:\Users\u> k get replicaset
NAME DESIRED CURRENT READY AGE
wd-864758c6 3 3 3 7m26s

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#and three Pods #
PS C:\Users\u> k get pods
NAME READY STATUS RESTARTS AGE
wd-864758c6-fs446 1/1 Running 0 7m59s
wd-864758c6-qsmdg 1/1 Running 0 7m45s
wd-864758c6-whbts 1/1 Running 0 8m35s
www 1/1 Running 0 65m
PS C:\Users\u>

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Delete any pods #

PS C:\Users\u> k delete pod wd-864758c6-fs446
pod "wd-864758c6-fs446" deleted
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#k8s detected one down immedately it created another pod#

PS C:\Users\u> k get pods
NAME READY STATUS RESTARTS AGE
wd-864758c6-nhtbz 1/1 Running 0 2m8s # New Pod k8s created after delete or down#
wd-864758c6-qsmdg 1/1 Running 0 15m
wd-864758c6-whbts 1/1 Running 0 16m
www 1/1 Running 0 73m
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Similar to logs what all pods deleted created etc info can seen in the events #
PS C:\Users\u> k get events

LAST SEEN TYPE REASON OBJECT MESSAGE
47m Normal Scheduled pod/wd-6595c9877d-4qgzr Successfully assigned default/wd-6595c9877d-4qgzr to minikube
47m Normal Pulling pod/wd-6595c9877d-4qgzr Pulling image "nginx"
47m Normal Pulled pod/wd-6595c9877d-4qgzr Successfully pulled image "nginx" in 1.503s (1.503s including waiting). Image size: 187706909 bytes.

PS C:\Users\u> m addons
addons modifies minikube addons files using subcommands like "minikube addons enable dashboard"

# minikube dashboard in powershell if it loading ctr+D it automatically it will take us to dashboard browser with ip#

PS C:\Users\u> m dashboard
* Enabling dashboard ...
- Using image docker.io/kubernetesui/dashboard:v2.7.0
- Using image docker.io/kubernetesui/metrics-scraper:v1.0.8
* Some dashboard features require the metrics-server addon. To enable all features please run:

minikube addons enable metrics-server

* Verifying dashboard health ...
* Launching proxy ...
* Verifying proxy health ...
* Opening http://127.0.0.1:62912/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/ in your default browser...

##NOTES:
Kubernetes (K8s)
kubectl (client) #Master server which talk to k8s Api response shows as output similiar to docker tools running docker machine showed us docker out same kubectl#
minikube (single-node cluster)
kubeadm
node -> computer machine or virtural machine

##pod <- container (Example for pod Vegetable peas skin called pod & peas are container) <-ReplicaSet <- Deployment (Example, will create replicate set, every time we can't create 5 or more replicae set if it in deployment config )
DaemonSet -> create copy of container in every nod means working virtual machine
NameSpace - Particular set object we can seperate
Services - Like how we expose ip and view in broswer (Don't required pod to pod communication this service not required)

Command for K8s
Imperative -> (Run, Expose, Create, Delete, Scale,....) dircetly we can use this manual process
Declarative Type (Yamel file here we config all steps pods delete etc) -> (apply, diff..)

---------------------------------##Date 28-09-2024 End---------------------------------

--------------------------------##Date 02-10-2024 Start---------------------------------

#How Delete Pod/Deployment/ReplicaSet# & Follow Above #How To create Pod#

#####First get the pods#####

PS C:\Users\u> kubectl get pods
NAME READY STATUS RESTARTS AGE

wd-864758c6-27lh5 1/1 Running 0 39s

wd-864758c6-d4ghd 1/1 Running 0 40s

wd-864758c6-wtlb2 1/1 Running 0 37s

www 1/1 Running 2 (23m ago) 3d21h

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

####Second go for Normal delete or if doesn't work go for Forcefully Delete Pods####

PS C:\Users\u> kubectl delete pod wd-864758c6-27lh5 wd-864758c6-d4ghd wd-864758c6-wtlb2 --grace-period=0 --force
Warning: Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely.
pod "wd-864758c6-27lh5" force deleted
pod "wd-864758c6-d4ghd" force deleted
pod "wd-864758c6-wtlb2" force deleted
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

####Third check wd pod deleted or not with below command####
PS C:\Users\u> kubectl get pods
NAME READY STATUS RESTARTS AGE
www 1/1 Running 2 (90m ago) 3d22h

####Fourth delete the (wd web devlopment container) deployment (it should say no resourse found namespace)#### Note Before deleting ensure which deployment(like wd in my case) should be deleted

PS C:\Users\u> kubectl delete deployment wd --grace-period=0 --force
Warning: Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely.
deployment.apps "wd" force deleted

PS C:\Users\u> kubectl get deploy
No resources found in default namespace.
PS C:\Users\u>

####Fivth check the Replicaset & delete####Note Before deleting ensure which Replicaset(like wd in my case) should be deleted

PS C:\Users\u>
PS C:\Users\u> kubectl delete replicaset --all
No resources found
PS C:\Users\u>
PS C:\Users\u>

PS C:\Users\u> kubectl get replicaset
No resources found in default namespace.
PS C:\Users\u>

####Finally its sucessfully deleted pod/deployment/replicaset####

PS C:\Users\u> kubectl get pods
NAME READY STATUS RESTARTS AGE
www 1/1 Running 2 (106m ago) 3d23h
PS C:\Users\u> kubectl get deploy
No resources found in default namespace.
PS C:\Users\u> kubectl get replicaset
No resources found in default namespace.
PS C:\Users\u>

##Component Health Status
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> kubectl get componentstatuses
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME STATUS MESSAGE ERROR
controller-manager Healthy ok
scheduler Healthy ok
etcd-0 Healthy ok
PS C:\Users\u>

--------------------##END---------------------------

## Date : 03-10-2024

## Ingress Steps using without Cloud accessing pods

#Increase the Docker CPU and Memory#

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> minikube start --cpus=4 --memory=3884
this memory based docker

#Enable ingress#

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> minikube addons enable ingress
* Verifying ingress addon...
* The 'ingress' addon is enabled

##Error occurs Appears with this command Delete and Reinstall ##
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/baremetal/deploy.yaml

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>kubectl delete job ingress-nginx-admission-create -n ingress-nginx
PS C:\Users\u>kubectl delete job ingress-nginx-admission-patch -n ingress-nginx

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/baremetal/deploy.yaml

#Ensure that the ingress-nginx pods are in a Running state.#
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> kubectl get pods -n ingress-nginx
NAME READY STATUS RESTARTS AGE
ingress-nginx-admission-create-7qnsk 0/1 Completed 0 7m6s
ingress-nginx-admission-patch-v8pxj 0/1 Completed 0 7m6s
ingress-nginx-controller-6484d48959-fln6x 1/1 Running 0 10m
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>

#Check label to Config label Name is wd in serviceport.yaml#
PS C:\Users\u> k get pods --show-labels
NAME READY STATUS RESTARTS AGE LABELS
wd-864758c6-9w2vg 1/1 Running 3 (33m ago) 23h app=wd,pod-template-hash=864758c6
wd-864758c6-cj46q 1/1 Running 2 (47m ago) 23h app=wd,pod-template-hash=864758c6
wd-864758c6-hk5wc 1/1 Running 3 (33m ago) 23h app=wd,pod-template-hash=864758c6
wd-864758c6-vs88z 1/1 Running 3 (33m ago) 23h app=wd,pod-template-hash=864758c6
wd-864758c6-zzt2f 1/1 Running 3 23h app=wd,pod-template-hash=864758c6

#Created serviceport yamil flie with port Applyed:# #
PS C:\Users\u> kubectl apply -f serviceport.yaml
service/my-service configured
PS C:\Users\u> kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
my-service NodePort 10.109.105.45 80:30007/TCP 15m

PS C:\Users\u> bat serviceport.yaml

##Now, you can create an Ingress resource to expose the service through HTTP/HTTPS. create an ingress.yaml file:#

C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> bat ingress.yaml #View yamil file#
PS C:\Users\u>

#Apply the service:#
PS C:\Users\u> kubectl apply -f ingress.yaml
ingress.networking.k8s.io/my-ingress created
PS C:\Users\u>

##Access Your Application##

Access Your Application
On Windows, you can modify the hosts file located at C:\Windows\System32\drivers\etc\hosts.

Open Notepad as Administrator:

Click on the Start menu and type Notepad.
Right-click on Notepad and select Run as administrator. This is necessary because the hosts file requires elevated permissions to be edited.
Open the Hosts File:

In Notepad, go to File > Open.
Navigate to C:\Windows\System32\drivers\etc.
In the bottom-right corner of the Open dialog, change the file type from Text Documents to All Files. This will allow you to see the hosts file.
Select the hosts file and click Open.
Add the Entry:

Scroll to the bottom of the file (or find a suitable place) and add the following line:
lua
Copy code
127.0.0.1 myapp.local
Make sure there are no extra spaces or tabs before or after the entry.
Save the File:

Go to File > Save to save the changes, then close Notepad.

##Ping the Hostname:##

In the Command Prompt, type:
bash
Copy code
ping myapp.local

##Use Minikube Tunnel###
If you're still facing issues, you can use minikube tunnel to expose the service:

Open a new terminal window.

PS C:\Users\u> minikube tunnel
* Tunnel successfully started

Using Webrowser we can see the out put
http://myapp.local/

--------------------##END---------------------------

##Date 04-10-2024

##Helm: K8s Packaging Manager

##WithOut Helm
Team rely Yamel files configure K8s WorkLoad
Yaml flies which we creating for k8s are static they don't receive parameters dynamically..

Consistency is the major issue with hand crafted Yaml or deployments

Version history not maintained in Yaml & K8s..

HElM: K8s Packing Manager

Running atop K8s
Micro Serivces Management on Ks

Packaging Manager Eg: Windows Installer , Ubutu (apt) etc

Helm work as package manager k8s..It can upgrade, downgrade, install ,uninstall enumber operation can be done

Benfits
Greatly improve productivity usiing single click deployment.
easier roll back of version

Helm Chart
Helm uses a packaging format called charts
Collection of files that describe a related set of k8s resourse

Installation
k8s env must be pre-configured for Helm

-> Local Installion
-> Cloud Installation using Minikube(Single Machine will be Sufficent)
-> Clound Installation using K8s HA(High Avaliable) Env (2/3 Machine wil be require Maskter & worker node)
-> K8s Managed Service SetUp
->

Helm path setup to open in Wsl/ Poweshell / Cmd

C:\Windows\System32\helm #Note Pad must opened in Administator mode and save in mentioned path#

##This is code saved with helm.bat##

@echo off
wsl helm %*

--------------------##END---------------------------

## Date 08-10-2024
##Helm Chart
helm repo list

helm repo add bitnami https://charts.bitnami.com/bitnami

helm repo list

helm repo remove bitnami

Helm Search Commands

--------------------##END---------------------------

## Date 12-10-2024

PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> helm repo list
NAME URL
bitnami https://charts.bitnami.com/bitnami
brigade https://brigadecore.github.io/charts
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> helm repo remove brigade
"brigade" has been removed from your repositories
PS C:\Users\u>
PS C:\Users\u> helm search repo mysql
NAME CHART VERSION APP VERSION DESCRIPTION
bitnami/mysql 11.1.17 8.4.2 MySQL is a fast, reliable, scalable, and easy t...
bitnami/phpmyadmin 17.0.7 5.2.1 phpMyAdmin is a free software tool written in P...
bitnami/mariadb 19.1.0 11.4.3 MariaDB is an open source, community-developed ...
bitnami/mariadb-galera 14.0.10 11.4.3 MariaDB Galera is a multi-primary database clus...
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> helm repo add brigade https://brigadecore.github.io/charts
"brigade" has been added to your repositories
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> helm repo list
PS C:\Users\u>
PS C:\Users\u> /charts.bitnami.com/bitnami
PS C:\Users\u> /brigadecore.github.io/charts
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> helm search repo nginx ##
NAME CHART VERSION APP VERSION DESCRIPTION
bitnami/nginx 18.2.2 1.27.2 NGINX Open Source is a web server that can be a...
bitnami/nginx-ingress-controller 11.4.4 1.11.3 NGINX Ingress Controller is an Ingress controll...
bitnami/nginx-intel 2.1.15 0.4.9 DEPRECATED NGINX Open Source for Intel is a lig...
PS C:\Users\u>
PS C:\Users\u> helm search hub nginx # Searching artifact of Helm so we are getting this much result multiple register in hub#
URL CHART VERSION APP VERSION DESCRIPTION
https://artifacthub.io/packages/helm/krakazyabr... 1.0.0 1.19.0 Nginx Helm chart for Kubernetes
https://artifacthub.io/packages/helm/bitnami/nginx 18.2.2 1.27.2 NGINX Open Source is a web server that can be a...
https://artifacthub.io/packages/helm/dysnix/nginx 7.1.8 1.19.4 Chart for the nginx server
https://artifacthub.io/packages/helm/bitnami-ak... 13.2.12 1.23.2 NGINX Open Source is a web server that can be a...
https://artifacthub.io/packages/helm/ashu-nginx... 0.1.0 1.16.0 A Helm chart for Kubernetes
https://artifacthub.io/packages/helm/test-nginx... 0.1.0 1.16.0 A Helm chart for Kubernetes
https://artifacthub.io/packages/helm/shubhamtat... 0.1.12 1.19.6 Nginx Helm chart for Kubernetes
https://artifacthub.io/packages/helm/dhinesh/nginx 18.2.2 1.27.2 NGINX Open Source is a web server that can be a...
https://artifacthub.io/packages/helm/wiremind/n... 2.1.1 An NGINX HTTP server
https://artifacthub.io/packages/helm/zrepo-test... 5.1.5 1.16.1 Chart for the nginx server
https://artifacthub.io/packages/helm/cloudnativ... 3.2.0 1.16.0 Chart for the nginx server
https://artifacthub.io/packages/helm/jfrog/nginx 15.1.5 1.25.2 NGINX Open Source is a web server that can be a...
https://artifacthub.io/packages/helm/slamdev/nginx 0.0.21 1.19.10 Helm chart to deploy [nginx](https://www.nginx....

PS C:\Users\u> helm search hub nginx | Measure-Object -Line #Poweshell Cmd total 193 registery avilable for nginx chart available#

Lines Words Characters Property
----- ----- ---------- --------
193

PS C:\Users\u>
PS C:\Users\u> helm search hub mysql | Measure-Object -Line

Lines Words Characters Property
----- ----- ---------- --------
161

--------------------##END---------------------------

##15-10-2024

Docker Desktop Has Issue follow this

Quit Docker Desktop

PS C:\Users\u> wsl -l -v
NAME STATE VERSION
* Ubuntu Running 2
docker-desktop Running 2
PS C:\Users\u> wsl --update
Checking for updates.
The most recent version of Windows Subsystem for Linux is already installed.
PS C:\Users\u> wsl --version
WSL version: 2.3.24.0
Kernel version: 5.15.153.1-2
WSLg version: 1.0.65
MSRDC version: 1.2.5620
Direct3D version: 1.611.1-81528511
DXCore version: 10.0.26100.1-240331-1435.ge-release
Windows version: 10.0.19045.5011
PS C:\Users\u> wsl --set-default-version 2
For information on key differences with WSL 2 please visit https://aka.ms/wsl2
The operation completed successfully.
PS C:\Users\u> wsl -l -v
NAME STATE VERSION
* Ubuntu Running 2
docker-desktop Running 2
PS C:\Users\u>

## Issue Installing the Redis in Local Machine
Windows version: 10.0.19045.5011
PS C:\Users\u> helm repo list
NAME URL
bitnami https://charts.bitnami.com/bitnami
brigade https://brigadecore.github.io/charts
PS C:\Users\u> helm repo add bitnami https://charts.bitnami.com/bitnami
"bitnami" already exists with the same configuration, skipping
PS C:\Users\u>
PS C:\Users\u>
PS C:\Users\u> helm repo update
Hang tight while we grab the latest from your chart repositories...
...Unable to get an update from the "bitnami" chart repository (https://charts.bitnami.com/bitnami):
Get "https://repo.broadcom.com/bitnami-files/index.yaml": read tcp 172.21.233.173:55110->172.66.0.165:443: read: connection reset by peer
...Successfully got an update from the "brigade" chart repository
Update Complete. ⎈Happy Helming!⎈
PS C:\Users\u> helm install my-redis bitnami/redis
Error: INSTALLATION FAILED: Kubernetes cluster unreachable: Get "http://localhost:8080/version": dial tcp 127.0.0.1:8080: connect: connection refused
PS C:\Users\u>

--------------------##END---------------------------

## 18-10-2024

postgresql & Logig page

Spring Initiazer

Java, Maven, SpringBoot 3.3.4

Dependences

Lombok,

Sprin Web,

Spring Security,

Postgre Sql Driver,

Spring Data JPA,

Java Mail Sender.

Project Metadata

Group com.kpl

Artifact ttm

Name ttm

Description ttm project for Spring Boot

Package name com.kpl.ttm

Packageing Jar

Java 17

application.Yml created in the Vscode updated database details below

postgresql

DATABASE Name is ttm ,

varghese@DESKTOP-OODIU93:~$ sudo -i -u postgres

postgres@DESKTOP-OODIU93:~$ psql

psql (14.13 (Ubuntu 14.13-0ubuntu0.22.04.1))

Type "help" for help.

PASSWORD 'Tiju@25!';

--------------------------------------------------------------------------------------

ISSUE occured while running the TtmApplication.java ,post 8080 LISTENING 3136

PS C:\Users\u> netstat -ano | findstr :8080

TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 3136

TCP [::]:8080 [::]:0 LISTENING 3136

TCP [::1]:8080 [::1]:64140 TIME_WAIT 0

powershell used to stop force fully

PS C:\Users\u>Stop-Process -Id 3136 -Force

PS C:\Users\u> netstat -ano | findstr :8080 #Executed this command to check wheather port listening it dint display which mean its clear#

Excuted the TtmApplication.java

http://localhost:8080/login

#local host spring default page opened. Under Process For custom page

##Git Commit ( LF will be replaced by CRLF the next time Git touches it)

PS E:\myWorks\springTaiga> git init

Reinitialized existing Git repository in E:/myWorks/springTaiga/.git/

PS E:\myWorks\springTaiga> git add .

warning: in the working copy of 'ttm/src/main/resources/application.yml', LF will be replaced by CRLF the next time Git touches it

PS E:\myWorks\springTaiga> git config --global core.autocrlf true

PS E:\myWorks\springTaiga> git config --global core.autocrlf false

PS E:\myWorks\springTaiga> git add --renormalize .

--------------------##END---------------------------

## 05-11-2024

##ERROR
##UserDetails Not Posted In the PostGre DataBase

##2024-11-05T12:36:47.570-05:00 WARN 13564 --- [nio-8080-exec-7] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.HttpMediaTypeNotSupportedException: Content-Type 'application/x-www-form-urlencoded' is not supported]

/* Allowed Multiple Content Types both JSON and application/x-www-form-urlencoded data. It started Post UserDetails in Postgre Database.."application/x-www-form-urlencoded" Enable SignUpage */
@PostMapping(value = "/req/signup", consumes = {"application/json", "application/x-www-form-urlencoded"})
public MyAppUser createUser(MyAppUser user) {
user.setPassword(passwordEncoder.encode(user.getPassword()));
return myAppUserRepository.save(user);
}
}

##SignUpPage.html
fetch('/req/signup', {
method: 'POST',
headers:{
'Content-Type': 'application/jsonx-www-form-urlencoded' // Allow Multiple Content Type To post in Postgre DB
},
body: jsonData

--------------------##END---------------------------

Day To Day Document Updated From Top 21-11-2024

ecosyste.ms

Data

Tools

Indexes

Applications

Experiments

Awesome

https://github.com/varghese25/springtaiga

Awesome Lists containing this project

README

It works!