k8s-deploy.yml

name: Deploy to Kubernetes

on:
  push:
    branches: ["development", "stable"]
  pull_request:
    branches: ["development", "stable"]
  workflow_dispatch:

jobs:
  deploy:
    env:
      BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
      REGISTRY: ghcr.io
      IMAGE_NAME: ${{ github.repository }}
      NAMESPACE: "gn-demo-${{ github.head_ref || github.ref_name }}"
      KUBECONFIG: "${{ github.workspace }}/.kube/config"

    runs-on: ubuntu-24.04

    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write

    steps:
      - name: Branch safety check
        run: '[ "${{ env.BRANCH_NAME }}" = "development" ] || [ "${{ env.BRANCH_NAME }}" = "stable" ]'

      - id: lowercase_image_name
        run: echo "IMAGE_NAME_LC=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')" >> ${GITHUB_OUTPUT}

      - name: Checkout
        uses: actions/checkout@v4

      - name: Log in to the Container registry
        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ env.REGISTRY }}/${{ steps.lowercase_image_name.outputs.IMAGE_NAME_LC }}:${{ env.BRANCH_NAME }}

      - name: "Write to $KUBECONFIG"
        run: |
          mkdir -p '${{ github.workspace }}/.kube' && umask 177
          if [ "${{ env.BRANCH_NAME }}" = "development" ]; then
            printf "%s" '${{ secrets.K8S_CONFIG_DEVELOPMENT }}' > "$KUBECONFIG"
          elif [ "${{ env.BRANCH_NAME }}" = "stable" ]; then
            printf "%s"  '${{ secrets.K8S_CONFIG_STABLE }}' > "$KUBECONFIG"
          fi

      - run: |
          kubectl version \
          && kubectl -n ${{ env.NAMESPACE }} get pods

      - name: Checkout Helm chart repo
        uses: actions/checkout@v4
        with:
          repository: geosolutions-it/geonode-k8s
          path: geonode-k8s

      - name: Read Helm values from secret
        working-directory: ./geonode-k8s
        run: |
          # HACK: GitHub secrets are limited to 48 KB, so we compress the file.
          # cat custom-values.yaml | gzip | base64 -w0
          if [ "${{ env.BRANCH_NAME }}" = "development" ]; then
            printf "%s" "${{ secrets.HELM_VALUES_DEVELOPMENT }}" | base64 -d | gunzip > custom-values.yaml
          elif [ "${{ env.BRANCH_NAME }}" = "stable" ]; then
            printf "%s" "${{ secrets.HELM_VALUES_STABLE }}" | base64 -d | gunzip > custom-values.yaml
          fi

      - name: Deploy to Kubernetes
        working-directory: ./geonode-k8s
        run: |
          helm version \
          && helm list -n ${{ env.NAMESPACE }} \
          && helm dependency build --namespace ${{ env.NAMESPACE }} charts/geonode \
          && helm upgrade --cleanup-on-fail --install --namespace ${{ env.NAMESPACE }} --values custom-values.yaml gn-demo-${{ env.BRANCH_NAME }} charts/geonode