https://github.com/woodprogrammer/e2e-hello
Application developed to say hello :)
https://github.com/woodprogrammer/e2e-hello
Last synced: 3 months ago
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Application developed to say hello :)
- Host: GitHub
- URL: https://github.com/woodprogrammer/e2e-hello
- Owner: WoodProgrammer
- Created: 2020-09-21T07:41:54.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-09-21T07:42:29.000Z (over 5 years ago)
- Last Synced: 2025-06-05T01:27:09.887Z (11 months ago)
- Language: HTML
- Size: 327 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# e2e-hello CASE Documentation
This Project contains couple of major point shown below.
* Application
* Codebase
* Helm Chart
* Kubernetes Cluster (gcloud)
* Monitoring
* Prometheus/Grafana
* PrometheusAdapter/CustomMetrics
* PrometheusExporter of application
* CI/CD Pipeline
* * Jenkins
* * Docker/Helm
# Application
## CodeBase
This is a simple python application you can see the codebase and Dockerfile under `application` directory.
You can build shown on docker environment.
```
$ docker build .
```
Local:
```
$ pip3 install -r requirements.txt
$ python3 app.py
```
Application contains prometheus exporter and it returning `/metrics` endpoint successfully to gather metrics.`/hi` endpoint returins valid JSON response.
## HelmChart
HelmChart located on `application/hello-world` directory.You can update values under values.yaml file.
# KUBERNETES CLUSTER
I have setup a cluster on google-cloud for development purposes.
The command is shown as below:
```
$ gcloud container clusters create MY_CLUSTER \
--zone compute-zone
```
Notice: Metric-server already installed on GKE based clusters.If they don't I prefer to use this manifest file shown below:
NginxIngress able to us accept traffic easily:
```
$ helm install --name nginx-ingress stable/nginx-ingress
```
# Monitoring
You can see general architectural diagram with explanation shown below.
I have used prometheusoperator with helm chart, it has couple of ability to access Dasboard and a lots of CRD options to easily automate and manage prometheus via simple manifest files.
In this project you can see the installation scripts under `./create_cluster/components.sh` directory.
By the I have added an example to get alert activity via webhook please check the directory autoscaler directory.It is a simple application that listen incoming payload from Alert Manager, to send the alerts via webhook you see the definition under cluster `operator.yaml` file.
`cluster-autoscaler-rules` containing application level alert defintion for prometheus and alertmanager, when you set up operator those definiton will appear on prometheus monitor.
# CI/CD Pipeline
I have used jenkins to build and deploy application.I set up `jenkins ` via helm chart, under the `jenkins` directory, it is has a installation script `setup_jenkins.sh`
Jobs are configured to poll changes from github.Jenkins configured to use `kubernetes` for run the `runner` agent to execute the jobs.
You can see the diagram below.
