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Docker #392

name: Docker
# parts of this are copy pasted from various sample github actions
# main goals:
# - build spring's petclinic project with a few additions for observability and push it as a custom docker image
# - make sure the docker compose file in this repo starts up correctly
# - some steps to sign the built image have been deactivated. This was just copy pasted but seems interesting
on:
schedule:
- cron: '41 18 * * *'
push:
branches: [ "main" ]
# Publish semver tags as releases.
tags: [ 'v*.*.*' ]
pull_request:
branches: [ "main" ]
env:
# Use docker.io for Docker Hub if empty
REGISTRY: ghcr.io
# github.repository as <account>/<repo>
IMAGE_NAME: ${{ github.repository }}
jobs:
build:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
# This is used to complete the identity challenge
# with sigstore/fulcio when running outside of PRs.
id-token: write
steps:
- name: Checkout repository
uses: actions/checkout@v4
# Install the cosign tool except on PR
# https://github.com/sigstore/cosign-installer
- name: Install cosign
# if: github.event_name != 'pull_request'
if: false
uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
with:
cosign-release: 'v2.1.1'
# Login against a Docker registry except on PR
# https://github.com/docker/login-action
- name: Log into registry ${{ env.REGISTRY }}
if: github.event_name != 'pull_request'
uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
# Extract metadata (tags, labels) for Docker
# https://github.com/docker/metadata-action
- name: Extract Docker metadata
id: meta
uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
- name: Set up JDK
uses: actions/[email protected]
with:
java-version: '21'
distribution: 'corretto'
- name: Build
shell: bash
id: build-image
run: |
# always work off of the most up to date petclinic sample
git clone https://github.com/spring-projects/spring-petclinic.git
cd spring-petclinic || exit 1
# copy recipe for open rewrite and config for maven versions plugin
cp ../petclinic-build-files/rewrite.yml ../petclinic-build-files/versions-rules.xml .
# copy logbook and observability spring config and json logback config
cp ../petclinic-build-files/application-o11y.yaml ../petclinic-build-files/logback-spring.xml src/main/resources
# add logbook and micrometer dependencies for metrics and tracing
./mvnw -B -ntp -U org.openrewrite.maven:rewrite-maven-plugin:run -Drewrite.activeRecipes=me.dtem.AddDependencies -Dcheckstyle.skip
# make sure the added dependencies are up to date (maybe should fail build if actually changed?)
./mvnw -B -ntp versions:update-properties -DincludeProperties="zipkin-reporter-brave.version,datasource-micrometer-spring-boot.version,logstash-logback-encoder.version,logbook.version,jib-maven-plugin.version" -Dcheckstyle.skip
# build the spring project and create the docker image
./mvnw -B -ntp package jib:build -DskipTests -Dimage=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} -Dcheckstyle.skip
- name: Publish
# if: ${{ github.event_name != 'pull_request' }}
if: false
shell: bash
id: publish-image
run: |
# add tags created by github (nightly, vsemver, branch name)
echo "${{ steps.meta.outputs.tags }}" | xargs -I {} docker tag ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} {}
docker push --quiet --all-tags ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
# save the digest of the pushed image (used by signing)
echo "DIGEST=$(docker images --format='{{.Digest}}' ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} | head -n1)" >> $GITHUB_OUTPUT
# Sign the resulting Docker image digest except on PRs.
# This will only write to the public Rekor transparency log when the Docker
# repository is public to avoid leaking data. If you would like to publish
# transparency data even for private images, pass --force to cosign below.
# https://github.com/sigstore/cosign
- name: Sign the published Docker image
# if: ${{ github.event_name != 'pull_request' }}
if: false
env:
# https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
TAGS: ${{ steps.meta.outputs.tags }}
DIGEST: ${{ steps.publish-image.outputs.DIGEST }}
# This step uses the identity token to provision an ephemeral certificate
# against the sigstore community Fulcio instance.
run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
test:
needs:
- build
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Compose up
shell: bash
id: compose-up
run: |
docker compose up -d
- name: Test
timeout-minutes: 2
shell: bash
run: |
# does a bunch of basic health checks on exposed endpoints
./test.sh