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docker-image.yml
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# Based on:
# - https://github.com/marketplace/actions/build-and-push-docker-images
# - https://github.com/docker/build-push-action/blob/master/docs/advanced/tags-labels.md
name: Docker Image CI
on:
push:
branches: [main]
# Required for secrets.GITHUB_TOKEN
permissions:
packages: write
contents: read
jobs:
docker:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
- name: Repository Variable to Lowercase
id: string
uses: ASzc/change-string-case-action@v1
with:
string: ${{ github.repository }}
- name: Login to GitHub Container Registry
uses: docker/login-action@v1
with:
registry: ghcr.io
username: ${{ github.repository_owner }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Build and push
id: docker_build
uses: docker/build-push-action@v2
with:
push: ${{ github.event_name != 'pull_request' }}
tags: ghcr.io/${{ steps.string.outputs.lowercase }}:latest
- name: Image digest
run: echo ${{ steps.docker_build.outputs.digest }}