build_and_push.yml

# This is a basic workflow to help you get started with Actions

name: CI

# Controls when the workflow will run
on:
  # Triggers the workflow on push or pull request events but only for the main branch with tags
  push:
    tags: 'v*.*'
  pull_request:
    tags: 'v*.*'
    
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Set env
        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          file: ./Dockerfile
          push: true
          tags: ${{ secrets.DOCKERHUB_USERNAME }}/forecasts:${{ env.RELEASE_VERSION }}