https://github.com/nimmis/vagrant-k3s-cluster

K3S minicluster on Alpine/Ubuntu/Centos OS deployed with vagrant
https://github.com/nimmis/vagrant-k3s-cluster

k3s-minicluster kubernetes kubernetes-cluster vagrant

Last synced: 6 days ago
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K3S minicluster on Alpine/Ubuntu/Centos OS deployed with vagrant

• Host: GitHub
• URL: https://github.com/nimmis/vagrant-k3s-cluster
• Owner: nimmis
• Created: 2019-09-11T19:53:59.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2021-12-08T10:43:59.000Z (about 3 years ago)
• Last Synced: 2024-11-10T01:18:45.238Z (2 months ago)
• Topics: k3s-minicluster, kubernetes, kubernetes-cluster, vagrant
• Language: Shell
• Homepage:
• Size: 24.4 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# kubernetes k3 minicluster with vagrant

K3S minicluster on Alpine OS deployed with vagrant

## manage cluster from host machine

Get the kubernet config file from guest and save it in a file named k3s-confg

    ./get-config.sh  > k3s-config

You can then address the k3s by adding the flag --kubeconfig=./k3s-config to the kubectl command

    kubectl --kubeconfig=./k3s-config config view

but the best way is to export a environmentvariable for kubectl so that i uses the configuration file by default

    export KUBECONFIG="$(pwd)/k3s-config"

    kubectl config view

To remove the export and let kubectl use "default" settings again

    unset KUBECONFIG

## getting kube config file from guest

    ./get-config.sh  > k3s-config

## Downloading kubectl

### Linux

    curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl

### Mac OS

    curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl

### Windows

#### with curl

    curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.15.0/bin/windows/amd64/kubectl.exe

#### with powershell

    Install-Script -Name install-kubectl -Scope CurrentUser -Force

    install-kubectl.ps1 [-DownloadLocation ]

## Using kubectl with k3s-config

    $> kubectl --kubeconfig=./k3s-config get nodes

    NAME     STATUS   ROLES    AGE   VERSION

    master   Ready    master   35m   v1.14.6-k3s.1

## Deploy app with ingress access

### Deploy cafe app

    kubectl apply -f examples/cafe.yaml 

### Deploy cafe.example.com certificat

    kubectl apply -f examples/cafe.example.com-secret.yaml

### Deploy cafe.example.com w/o coffee and tea

    kubectl apply -f examples/cafe_only-ingress.yaml

### test access to app

    C_PORT=8443

    C_HOST=127.0.0.1

    curl --resolve cafe.example.com:$C_PORT:$C_HOST https://cafe.example.com:$C_PORT/ --insecure

    Server address: 10.42.0.11:80

    Server name: cafe-77654cbdbb-qffsw

    Date: 15/Sep/2019:17:59:18 +0000

    URI: /

    Request ID: 426ebf8761a84facdb65486e9f2907b8

    

    curl --resolve cafe.example.com:$C_PORT:$C_HOST https://cafe.example.com:$C_PORT/coffee --insecure

### add apps for coffee and tea

    kubectl apply -f examples/coffee.yaml

    kubectl apply -f examples/tea.yaml

### deploy ingress with coffee and tea

    kubectl apply -f examples/cafe_coffee_and_tea-ingress.yaml

### check to see that url talks to different apps

    C_PORT=8443

    C_HOST=127.0.0.1

    curl --resolve cafe.example.com:$C_PORT:$C_HOST https://cafe.example.com:$C_PORT/ --insecure

    Server address: 10.42.0.11:80

    Server name: cafe-77654cbdbb-qffsw

    Date: 15/Sep/2019:18:01:21 +0000

    URI: /

    Request ID: 5624132df85d187692df6c51bf2cca57

    curl --resolve cafe.example.com:$C_PORT:$C_HOST https://cafe.example.com:$C_PORT/coffee --insecure

    Server address: 10.42.0.6:80

    Server name: coffee-bbd45c6-42mhw

    Date: 15/Sep/2019:18:02:46 +0000

    URI: /coffee

    Request ID: 585bd3ea1ad1de6dddda9b0d5f99f6a7

    curl --resolve cafe.example.com:$C_PORT:$C_HOST https://cafe.example.com:$C_PORT/tea --insecure

    Server address: 10.42.0.6:80

    Server name: coffee-bbd45c6-42mhw

    Date: 15/Sep/2019:18:03:16 +0000

    URI: /tea

    Request ID: 585bd3ea1ad1de6dddda9b0d5f99f6a7

    Server address: 10.42.0.6:80

### remove demo application

    kubectl delete namespace cafeexample