Add all org.opencontainers.image.xxx labels using --label instead…

… of `LABEL`

.github/workflows/docker.yml

@@ -81,6 +81,10 @@ jobs:
             type=semver,pattern=v{{major}}
             type=semver,pattern=v{{major}}.{{minor}}
             type=semver,pattern=v{{major}}.{{minor}}.{{patch}}
+          # The rest of the org.opencontainers.image.xxx labels are dynamically generated
+          labels: |
+            org.opencontainers.image.description=CNI Plugins
+            org.opencontainers.image.licenses=Apache License 2.0
 
       # See: https://github.com/docker/build-push-action/blob/v2.6.1/docs/advanced/cache.md#github-cache
       - name: Set up QEMU
@@ -131,6 +135,7 @@ jobs:
           platforms: linux/amd64,linux/arm,linux/arm64,linux/mips64le,linux/ppc64le,linux/riscv64,linux/s390x
           push: true
           tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max
 

Dockerfile

@@ -34,9 +34,6 @@ RUN set -eux; \
 
 # This is the final, minimal container
 FROM busybox as final
-LABEL org.opencontainers.image.source https://github.com/containernetworking/plugins
-LABEL org.opencontainers.image.description="CNI Plugins docker image"
-LABEL org.opencontainers.image.licenses="Apache License 2.0"
 COPY docker-installer/install_cni_plugins.sh /script/install_cni_plugins.sh
 COPY --from=build /opt/cni/bin /opt/cni/bin
 ENV FORCE=