Get version into build image automatically, add docker image labels

.gitea/workflows/build_docker.yaml

@@ -143,7 +143,10 @@ jobs:
         ls -al public/js/
 
     - name: Record version and Delete Unnecessary files
+      id: prebuild
       run: |
+        echo "version=$(cat public/VERSION)" >> "$GITHUB_OUTPUT"
+        echo "revision=${GITHUB_SHA}" >> "$GITHUB_OUTPUT"
         echo ${GITHUB_SHA::8} > VERSION
         rm -rf .git* tests/ storage/app/test/
         ls -al public/css/
@@ -156,6 +159,9 @@ jobs:
         file: docker/Dockerfile
         push: true
         tags: "${{ steps.registry.outputs.registry }}/${{ env.GITHUB_REPOSITORY }}:${{ env.VERSIONARCH }}"
+        build-args: |
+          BUILD_REVISION=${{ steps.prebuild.outputs.revision }}
+          BUILD_VERSION=${{ steps.prebuild.outputs.version }}
 
   manifest:
     name: Final Docker Image Manifest

docker/Dockerfile

@@ -1,5 +1,17 @@
 FROM dunglas/frankenphp:php8.4-alpine
 
+ARG BUILD_VERSION=2.0.0-dev
+ARG BUILD_REVISION=00000000
+
+LABEL org.opencontainers.image.vendor="Deon George"
+LABEL org.opencontainers.image.licenses=GPLv2
+LABEL org.opencontainers.image.source=https://github.com/leenooks/phpldapadmin
+LABEL org.opencontainers.image.title=phpLDAPadmin
+LABEL org.opencontainers.image.description="An LDAP Administration Tool"
+LABEL org.opencontainers.image.url=https://phpldapadmin.org
+LABEL org.opencontainers.image.version=${BUILD_VERSION}
+LABEL org.opencontainers.image.revision=${BUILD_REVISION}
+
 # Base
 RUN apk add --no-cache bash