doks-github-action.yaml

name: deploy-to-doks

on:
  push:
    branches:
      - master

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    name: Build, push, and deploy
    runs-on: ubuntu-latest
    steps:
      - name: Checkout master
        uses: actions/checkout@master

      - name: Set version
        id: release
        run: echo ::set-output name=version::$(git describe --always)

      - name: Build container image
        env:
          VERSION: ${{ steps.release.outputs.version }}
        run: docker build -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.VERSION }} .

      - name: Docker Login
        run: echo ${{ secrets.CI_PAT }} | docker login ${{ env.REGISTRY }} -u ${{ github.actor }} --password-stdin

      - name: Push image to Docker Registry
        env:
          VERSION: ${{ steps.release.outputs.version }}
        run: docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.VERSION }}

      - name: Deploy to doks
        env:
          VERSION: ${{ steps.release.outputs.version }}
          CLUSTER_CONFIG: "${{ secrets.CI_DOKS }}"
        run: |
          echo "${CLUSTER_CONFIG}" > .kubeconfig
          export DOCKER_IMG="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.VERSION }}"
          # the following line adds the proper docker image path of our application service in kubernetes manifest
          cat k8s/application.yaml | sed "s|IMAGE_PLACEHOLDER|$DOCKER_IMG|g" > application-with-image.yaml
          kubectl --kubeconfig=.kubeconfig apply -f application-with-image.yaml