Continuous Integration (CI) is a development practice where developers frequently merge their code changes into a central repository, after which automated builds and tests are run. GitHub Actions is a CI tool provided by GitHub, which allows users to create custom CI/CD workflows for their projects. In the context of the project fluxcd/flux2-kustomize-helm-example, GitHub Actions can be used for testing and validation of the Helm charts and Kustomize configurations.
Here are some possible options for using GitHub Actions in this project:
- Testing Helm charts: The project contains Helm charts for deploying applications to Kubernetes. GitHub Actions can be used to build and test these Helm charts before they are deployed to a cluster. This can be done using the
helm lint
andhelm test
commands, which check the charts for syntax errors and run any tests that are defined in the charts.
Here’s an example of a GitHub Actions workflow that tests a Helm chart:
name: Test Helm Chart
on:
push:
branches:
- main
jobs:
test:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Install Helm
uses: helm/helm-github-action@v2
- name: Test Helm Chart
run: |
helm lint charts/podinfo
helm test charts/podinfo
This workflow runs whenever code is pushed to the main
branch, and it tests the podinfo
Helm chart in the charts
directory.
- Testing Kustomize configurations: The project also contains Kustomize configurations, which are used to customize and deploy Kubernetes resources. GitHub Actions can be used to build and test these configurations before they are deployed to a cluster. This can be done using the
kubectl apply
andkubectl delete
commands, which apply and delete the resources defined in the configurations.
Here’s an example of a GitHub Actions workflow that tests a Kustomize configuration:
name: Test Kustomize Configuration
on:
push:
branches:
- main
jobs:
test:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Install kubectl
uses: actions/setup-kubectl@v1
- name: Test Kustomize Configuration
run: |
kubectl apply -k config/base
kubectl delete -k config/base
This workflow runs whenever code is pushed to the main
branch, and it tests the Kustomize configuration in the config/base
directory.
- Validating GitOps configurations: The project uses GitOps to deploy applications to Kubernetes, which means that the desired state of the cluster is stored in Git and automatically synchronized with the cluster using a tool like Flux. GitHub Actions can be used to validate the GitOps configurations before they are applied to the cluster. This can be done using the
flux check
command, which checks the configurations for syntax errors and other issues.
Here’s an example of a GitHub Actions workflow that validates GitOps configurations:
name: Validate GitOps Configurations
on:
push:
branches:
- main
jobs:
validate:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Install flux
run: |
curl -s https://fluxcd.io/install.sh | sudo bash
- name: Validate GitOps Configurations
run: flux check --pre
This workflow runs whenever code is pushed to the main
branch, and it validates the GitOps configurations using Flux.
These are just a few examples of how GitHub Actions can be used in the context of the fluxcd/flux2-kustomize-helm-example project. The exact workflows and jobs will depend on the specific requirements of the project.
Sources:
- GitHub Actions for CI/CD
- Helm CLI Reference
- Kustomize Command Line Reference
- Flux CLI Reference
- GitOps for Helm Users
- FluxCD Addon for KubeVela
- Flux Roadmap
- Migrate to the Helm Controller
- Flux Documentation Style Guide
- Flux Vertical Scaling
- Real-World GitOps with Flux, Flagger, and Linkerd
- Use Flux to support Helm chart propagation
- Flux Source Controller packaged by Bitnami for Kubernetes