Skip to content

Latest commit

 

History

History
 
 

089

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
github
github
 
 
k8s
k8s
 
 
terraform
terraform
 
 
Dockerfile
Dockerfile
 
 
README.md
README.md
 
 

README.md

GitHub Actions Self Hosted Runner (Autoscaling with Kubernetes)

YouTube Tutorial

Content

  • Create GitHub Repository
  • Create EKS Cluster with Terraform
  • Install Cert-Manager on Kubernetes
  • Install actions-runner-controller
  • Create Single GitHub Actions Self Hosted Runner
  • Create Multiple GitHub Actions Self Hosted Runners
  • Autoscaling with Kubernetes

Create GitHub Repository

  • Create private GitHub repository lesson-089

Create EKS Cluster with Terraform

  • Go over each file under terraform folder

  • Create EKS with terraform

terraform init
terraform apply
  • Configure kubectl
aws eks --region us-east-1 update-kubeconfig --name demo

if you get an error 'NoneType' object is not iterable, run rm ~/.kube/config

  • Check connection with Kubernetes
kubectl get svc

Install Cert-Manager on Kubernetes

  • Add Helm repo
helm repo add jetstack https://charts.jetstack.io
  • Update Helm
helm repo update
  • Search for latest verion
helm search repo cert-manager
  • Split the screen and install Helm chart
watch kubectl get pods -A
  • Install Helm chart
helm install \
  cert-manager jetstack/cert-manager \
  --namespace cert-manager \
  --create-namespace \
  --version v1.6.0 \
  --set prometheus.enabled=false \
  --set installCRDs=true

Install actions-runner-controller

  • Create GitHub App, call it k8s-actions-89

  • Create namespace

kubectl create ns actions
  • Create secret to authenticate with GitHub
kubectl create secret generic controller-manager \
    -n actions \
    --from-literal=github_app_id=<> \
    --from-literal=github_app_installation_id=<> \
    --from-file=github_app_private_key=<>
  • Add actions helm repo
helm repo add actions-runner-controller https://actions-runner-controller.github.io/actions-runner-controller
helm repo update
helm search repo actions
  • Install Helm chart
helm install actions \
    actions-runner-controller/actions-runner-controller \
    --namespace actions \
    --version 0.14.0 \
    --set syncPeriod=1m

Create Single GitHub Actions Self Hosted Runner

  • Create k8s/runner.yaml
kubectl apply -f k8s/runner.yaml
kubectl get pods -n actions
kubectl logs -f k8s-single-runner -c runner -n actions

  • Go to GitHub to check self hosted runners

  • Clone lesson-089 repository

git clone git@github.com:antonputra/lesson-089.git
  • Create .github/workflows/main.yaml
  • Commit & push
  • Check pods
kubectl get pods -n actions

Create Multiple GitHub Actions Self Hosted Runners

  • Create k8s/runner-deployment.yaml
kubectl apply -f k8s/runner-deployment.yaml
kubectl get pods -n actions

  • Check in GitHub repo self-hosted runners

  • Create 2 build jobs with docker

  • Create Dockerfile

  • Ceate .github/workflows/example-2.yaml

Autoscaling with Kubernetes

  • Deploy k8s/horizontal-runner-autoscaler.yaml
kubectl apply -f k8s/horizontal-runner-autoscaler.yaml
  • Ceate .github/workflows/example-3.yaml

Links