local_k8s.yml

name: Deploying Wordpress on Kubernetes
on:
  - push
  - pull_request
env:
  tf_version: 'latest'
  tg_version: 'latest'
  tf_working_dir: 'environments/dev'
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Log in to the Container registry
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push openresty Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: ./docker
          file: docker/Dockerfile_openresty
          push: true
          tags: ghcr.io/katzefudder/openresty:latest

      - name: Build and push Wordpress Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: ./docker
          file: docker/Dockerfile_wordpress
          push: true
          tags: ghcr.io/katzefudder/wordpress:latest
  Wordpress_on_Minikube:
    runs-on: ubuntu-latest
    name: Wordpress on Kubernetes
    steps:
    - name: Install dependencies
      run: |
        mkdir tenv && wget https://github.com/tofuutils/tenv/releases/download/v3.2.10/tenv_v3.2.10_Linux_x86_64.tar.gz -O tenv.tar.gz && tar xzf tenv.tar.gz -C tenv && sudo ln -sf $(pwd)/tenv/* /usr/local/bin
        curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 && chmod 700 get_helm.sh && ./get_helm.sh && helm version
    - name: 'Checkout'
      uses: actions/checkout@master
    - name: Install required Terraform & Terragrunt versions
      run: cd environments && /usr/local/bin/tenv tf install && /usr/local/bin/tenv tg install
    
    #### K3D 
    - name: Install K3D
      run: wget -q -O - https://raw.githubusercontent.com/k3d-io/k3d/main/install.sh | TAG=v5.4.4 bash
    - name: Start K3D
      run: k3d cluster create --api-port 6550 -p "80:80@loadbalancer" --k3s-arg="--disable=traefik@server:0"

    #### Install kube-prometheus-stack https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack
    # hack: for having CRDs available, install helm chart then remove right after
    - name: Install kube-prometheus-stack helm chart
      run: helm repo add prometheus-community https://prometheus-community.github.io/helm-charts && helm repo update && helm install prometheus-stack prometheus-community/kube-prometheus-stack && helm uninstall prometheus-stack

    - name: Create monitoring namespace
      run: kubectl create ns monitoring

    #### Terraforming
    - name: 'Terragrunt Init'
      run: cd $tf_working_dir && terragrunt init
    - name: 'Terragrunt Apply'
      run: cd $tf_working_dir && terragrunt apply --auto-approve --input=false

    #### Bit of debugging and testing
    - name: show running pods
      run: kubectl get pods -n dev-wordpress
    - name: port forwarding wordpress to localhost:8080
      run: kubectl port-forward -n dev-wordpress svc/wordpress 8080 &
    - name: testing output
      run: curl --fail --silent -IL localhost:8080/wp-admin/install.php | grep "HTTP/1.1 200 OK"