docker-build.yml

name: Build, Assess Vulnerability, Push, Sign Image

on:
  push:
    branches:
      - master
    paths-ignore:
      - '**/README.md'
  schedule:
    - cron: '43 19 */7 * *'

env:
  IMAGE_NAME: thermostat_api_server

jobs:  
  AMD64:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Run Trivy in GitHub SBOM mode and submit results to Dependency Graph
        uses: aquasecurity/trivy-action@0.20.0
        with:
          scan-type: 'fs'
          format: 'github'
          output: 'dependency-results.sbom.json'
          image-ref: '.'
          github-pat: ${{ secrets.GITHUB_TOKEN }}

      - name: Attempt Build
        run: docker build . --file Dockerfile -t $IMAGE_NAME
        
      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@0.20.0
        with:
          image-ref: ${{ env.IMAGE_NAME }}
          format: 'sarif'
          output: 'trivy-results.sarif'

      - name: Upload Trivy scan results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v2
        with:
          sarif_file: 'trivy-results.sarif'

      - name: Log into Registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin

      - name: Build and push container image
        id: push-step
        uses: docker/build-push-action@master
        with:
          push: true
          tags: ghcr.io/aneisch/${{ env.IMAGE_NAME }}:latest
          
      - name: Install cosign
        uses: sigstore/cosign-installer@main

      - name: Write signing key to disk
        run: 'echo "$KEY" > cosign.key'
        shell: bash
        env:
          KEY: ${{ secrets.COSIGN_PRIVATE_KEY }}

      - name: Sign the container image
        env:
          COSIGN_PASSWORD: ${{ secrets.COSIGN_PASSWORD }}
        run: cosign sign --key cosign.key ghcr.io/aneisch/${{ env.IMAGE_NAME }}@${{ steps.push-step.outputs.digest }}

  Multiarch:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      
      - name: Cache Docker layers
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-
      
      - name: Log into Registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
      
      - name: Build and push
        uses: docker/build-push-action@master
        id: push-step
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ghcr.io/aneisch/thermostat_api_server:latest-arm64
          platforms: linux/arm64/v8
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache

      - name: Write signing key to disk
        run: 'echo "$KEY" > cosign.key'
        shell: bash
        env:
          KEY: ${{ secrets.COSIGN_PRIVATE_KEY }}
          
      - name: Install cosign
        uses: sigstore/cosign-installer@main

      - name: Sign the container image
        env:
          COSIGN_PASSWORD: ${{ secrets.COSIGN_PASSWORD }}
        run: cosign sign ghcr.io/aneisch/${{ env.IMAGE_NAME }}@${{ steps.push-step.outputs.digest }}