135 lines
5.2 KiB
Markdown
135 lines
5.2 KiB
Markdown
## Introduction
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GitHub Actions can be run in GitHub-hosted cloud or self hosted environments. Self-hosted runners offer more control of hardware, operating system, and software tools than GitHub-hosted runners provide.
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With just a few steps, you can set up your kubernetes (K8s) cluster to be a self-hosted environment.
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In this guide, we will setup prerequistes, deploy Actions Runner controller (ARC) and then target that cluster to run GitHub Action workflows.
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<p align="center">
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<img src="https://user-images.githubusercontent.com/53718047/181159115-dbf41416-89a7-408c-b575-bb0d059a1a36.png" />
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</p>
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## Setup your K8s cluster
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<details><summary><sub>Create a K8s cluster, if not available.</sub></summary>
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<sub>
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If you don't have a K8s cluster, you can install a local environment using minikube. For more information, see <a href="https://minikube.sigs.k8s.io/docs/start/">"Installing minikube."</a>
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</sub>
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</details>
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:one: Install cert-manager in your cluster. For more information, see "[cert-manager](https://cert-manager.io/docs/installation/)."
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```shell
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kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.8.2/cert-manager.yaml
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```
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<sub> *note:- This command uses v1.8.2. Please replace with a later version, if available.</sub>
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>You may also install cert-manager using Helm. For instructions, see "[Installing with Helm](https://cert-manager.io/docs/installation/helm/#installing-with-helm)."
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:two: Next, Generate a Personal Access Token (PAT) for ARC to authenticate with GitHub.
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- Login to GitHub account and Navigate to "[Create new Token](https://github.com/settings/tokens/new)."
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- Select **repo**.
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- Click **Generate Token** and then copy the token locally ( we’ll need it later).
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## Deploy and Configure ARC
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1️⃣ Deploy and configure ARC on your K8s cluster. You may use Helm or Kubectl.
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<details><summary>Helm deployment</summary>
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##### Add repository
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```shell
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helm repo add actions-runner-controller https://actions-runner-controller.github.io/actions-runner-controller
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```
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##### Install Helm chart
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```shell
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helm upgrade --install --namespace actions-runner-system --create-namespace\
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--set=authSecret.create=true\
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--set=authSecret.github_token="REPLACE_YOUR_TOKEN_HERE"\
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--wait actions-runner-controller actions-runner-controller/actions-runner-controller
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```
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<sub> *note:- Replace REPLACE_YOUR_TOKEN_HERE with your PAT that was generated in Step 1 </sub>
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</details>
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<details><summary>Kubectl deployment</summary>
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##### Deploy ARC
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```shell
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kubectl apply -f \
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https://github.com/actions-runner-controller/actions-runner-controller/\
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releases/download/v0.22.0/actions-runner-controller.yaml
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```
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<sub> *note:- Replace "v0.22.0" with the version you wish to deploy </sub>
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##### Configure Personal Access Token
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```shell
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kubectl create secret generic controller-manager \
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-n actions-runner-system \
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--from-literal=github_token=REPLACE_YOUR_TOKEN_HERE
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````
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<sub> *note:- Replace REPLACE_YOUR_TOKEN_HERE with your PAT that was generated in Step 1. </sub>
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</details>
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2️⃣ Create the GitHub self hosted runners and configure to run against your repository.
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Create a `runnerdeployment.yaml` file containing..
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```yaml
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apiVersion: actions.summerwind.dev/v1alpha1
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kind: RunnerDeployment
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metadata:
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name: example-runnerdeploy
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spec:
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replicas: 1
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template:
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spec:
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repository: mumoshu/actions-runner-controller-ci
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````
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<sub> *note:- Replace mumoshu/actions-runner-controller-ci with the full path to your github repository. </sub>
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Apply this file to your K8s cluster.
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```shell
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kubectl apply -f runnerdeployment.yaml
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````
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>
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>🎉 We are done - now we should have self hosted runners running in K8s configured to your repository. 🎉
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>
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> Up Next - lets verify and execute some workflows.
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## Verify and execute workflows
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:one: Verify your setup is successful with..
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```shell
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$ kubectl get runners
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NAME REPOSITORY STATUS
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example-runnerdeploy2475h595fr mumoshu/actions-runner-controller-ci Running
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$ kubectl get pods
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NAME READY STATUS RESTARTS AGE
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example-runnerdeploy2475ht2qbr 2/2 Running 0 1m
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````
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Also, this runner has been registered directly to the specified repository, you can see it in repository settings. For more information, see "[settings](https://docs.github.com/en/actions/hosting-your-own-runners/monitoring-and-troubleshooting-self-hosted-runners#checking-the-status-of-a-self-hosted-runner)."
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:two: You are ready to execute workflows against this self hosted runner.
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GitHub documentation lists the steps to target Actions against self hosted runners. For more information, see "[Using self-hosted runners in a workflow - GitHub Docs](https://docs.github.com/en/actions/hosting-your-own-runners/using-self-hosted-runners-in-a-workflow#using-self-hosted-runners-in-a-workflow)."
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There's also has a quick start guide to get started on Actions, For more information, see "[Quick start Guide to GitHub Actions](https://docs.github.com/en/actions/quickstart)."
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## Next steps
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ARC provides several interesting features and capabilities. For more information, see "[Readme](https://github.com/actions-runner-controller/actions-runner-controller/blob/master/README.md)."
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