From f46b116e70de27da47c5645eae166ac4af6d2dd6 Mon Sep 17 00:00:00 2001
From: Brian Scholer <1260690+briantist@users.noreply.github.com>
Date: Fri, 29 Sep 2023 18:49:56 -0400
Subject: [PATCH] add labels to container images

---
 .github/workflows/test.yml | 10 ++++++++++
 Dockerfile                 |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 34b8b0f..f9dbf24 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -61,6 +61,8 @@ jobs:
     permissions:
       contents: read
     runs-on: ubuntu-latest
+    outputs:
+      container-description: ${{ steps.description.outputs.container-description }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -84,6 +86,11 @@ jobs:
       - name: Run container
         run: docker run --rm galactory --help
 
+      - name: Extract container description
+        id: description
+        run: |
+          echo "container-description=$(docker inspect --format '{{ index .Config.Labels "org.opencontainers.image.description" }}' galactory) >> $GITHUB_OUTPUT
+
       - name: Build arm64
         uses: docker/build-push-action@v5
         with:
@@ -159,9 +166,12 @@ jobs:
           push: ${{ github.event_name == 'push' }}
           context: .
           platforms: linux/amd64,linux/arm64
+          labels: |
+            org.opencontainers.image.source=${{ github.repositoryUrl }}
           tags: |
             ${{ env.UPSTREAM }}:${{ startsWith(github.ref, 'refs/tags/') && 'latest' || needs.test.outputs.branch }}
             ${{ env.UPSTREAM }}:${{ startsWith(github.ref, 'refs/tags/') && needs.test.outputs.relver || github.sha }}
+          outputs: type=image,name=target,annotation-index.org.opencontainers.image.description=${{ needs.build.outputs.container-description }}
 
   pypi_release:
     needs: [test, build]
diff --git a/Dockerfile b/Dockerfile
index f6793ca..63b483e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,10 @@ RUN pip install ./galactory
 
 FROM python:3.11-slim as final
 
+LABEL org.opencontainers.image.title="galactory"
+LABEL org.opencontainers.image.licenses="GPL-3.0-or-later"
+LABEL org.opencontainers.image.description="galactory: Ansible Galaxy proxy using Artifactory as a backend."
+
 COPY --from=build /venv /venv
 ENV PATH=/venv/bin:$PATH