build.yaml

name: build
on:
  push:
    branches:
      - main

  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag name'
        required: true
        default: 'latest'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
    - name: Login to DockerHub
      uses: docker/login-action@v1
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}
    - name: Build and push
      uses: docker/build-push-action@v2
      with:
        push: true
        tags: ${{ secrets.DOCKER_USERNAME }}/cainjector:${{ inputs.tag || github.sha }}
        platforms: linux/amd64,linux/arm64
    - name: Tag image as latest
      if: ${{ inputs.tag != 'latest' }}
      run: |
        ORIGINAL_IMAGE=${{ secrets.DOCKER_USERNAME }}/cainjector:${{ inputs.tag || github.sha }}
        NEW_IMAGE=${{ secrets.DOCKER_USERNAME }}/cainjector:latest
        docker buildx imagetools create ${ORIGINAL_IMAGE} --tag ${NEW_IMAGE}