69 lines
2.7 KiB
YAML
69 lines
2.7 KiB
YAML
# .github/workflows/docker-publish.yml
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name: Docker Image CI for Electricity Calculator
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# Controls when the workflow will run
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on:
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push:
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branches: [ "master" ] # Triggers on pushes to the main branch
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# Allows you to run this workflow manually from the Actions tab
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workflow_dispatch:
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jobs:
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build_and_push_to_ghcr:
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name: Build and Push to GitHub Container Registry
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runs-on: ubuntu-latest # Use the latest Ubuntu runner
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permissions:
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contents: read # Needed to checkout the repository
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packages: write # Needed to push to GitHub Packages (GHCR)
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# id-token: write # Uncomment if using OIDC for authentication with a cloud provider
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steps:
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- name: Checkout repository
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uses: actions/checkout@v4
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# This step checks out your repository under $GITHUB_WORKSPACE, so your workflow can access it.
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- name: Log in to GitHub Container Registry
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uses: docker/login-action@v3
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with:
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registry: ghcr.io
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username: ${{ github.actor }} # Your GitHub username or organization name
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password: ${{ secrets.GITHUB_TOKEN }}
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# This step logs in to GHCR using a GITHUB_TOKEN, which is automatically generated for each job run.
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# The GITHUB_TOKEN has permissions to push to GHCR if 'packages: write' is set for the job.
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- name: Extract metadata (tags, labels) for Docker
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: ghcr.io/${{ github.repository_owner }}/electricity-calculator-app
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# Generates tags:
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# - 'latest' for the default branch
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# - Git tag if a tag is pushed
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# - Git SHA as a tag
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tags: |
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type=schedule
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type=ref,event=branch
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type=ref,event=pr
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type=semver,pattern={{version}}
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type=semver,pattern={{major}}.{{minor}}
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type=semver,pattern={{major}}
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type=sha
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latest
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- name: Build and push Docker image
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uses: docker/build-push-action@v5
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with:
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context: . # Build context is the root of the repository (where Dockerfile is)
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file: ./Dockerfile # Explicitly specify the Dockerfile name if it's not 'Dockerfile' or is in a subdirectory
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push: true # Actually push the image after building
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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# This step builds the Docker image using the Dockerfile in your repository
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# and pushes it to GHCR with the tags generated in the previous step.
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- name: Image digest
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run: echo ${{ steps.build_and_push.outputs.digest }}
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# Optional: Outputs the digest of the pushed image.
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