main.yml

name: CI to Docker HuB

on:
  push:
    branches: [ release ]

jobs:
  Build-push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v1
      - run: |
          printenv
      - name: Call printenv to see all envs
        shell: bash
        run: printenv

      - name: Call printenv filtering to see GITHUB envs
        shell: bash
        run:  printenv | grep "^GITHUB.*"

      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"

      - name: Shell GIT env
        shell: bash
        run: |
          SHA=${{ github.event.pull_request.head.sha }}
          echo "github.event.pull_request.head.sha = ${SHA}"
          echo "GITHUB_SHA = ${GITHUB_SHA}"
          echo "GITHUB_REF = ${GITHUB_REF}"
          echo "BRANCH = ${GITHUB_REF#refs/heads/}"
      - name: Declare some vars to use on other actions
        id: vars
        shell: bash
        run: |
          echo "GITHUB_SHA: ${GITHUB_SHA}"
          echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
          echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
      - name: Get Vars from step "vars"
        run: |
          echo "Branch: ${{ steps.vars.outputs.branch }}"
          echo "Sha: ${{ steps.vars.outputs.sha_short }}"
      - name: Check out the repo
        uses: actions/checkout@v3

      - name: Log in to Docker Hub
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: soorajsky/sky-meter 
      
      - name: Build and push Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: .
          push: true
          tags: soorajsky/sky-meter:${{ steps.vars.outputs.branch }}-${{ steps.vars.outputs.sha_short }}
          labels: ${{ steps.meta.outputs.labels }}