extend labels, added git

dockerfile

@@ -6,12 +6,23 @@ FROM debian:stable-slim
 
 ARG DEBIAN_FRONTEND=noninteractive
 ARG GIT_COMMIT
+ARG VERSION
+ARG TIMESTAMP
 LABEL org.opencontainers.image.licenses="AGPL-3.0-or-later" \
 org.opencontainers.image.base.name="docker.io/debian:stable-slim" \
-org.opencontainers.image.title=buildimage
+org.opencontainers.image.title=buildimage \
+org.opencontainers.image.source="https://git.schmidl.dev/schtobia/buildimage" \
+org.opencontainers.image.url="https://git.schmidl.dev/schtobia/buildimage"
+
 LABEL org.opencontainers.image.revision=${GIT_COMMIT}
+LABEL org.opencontainers.image.version=${VERSION}
+LABEL org.opencontainers.image.created=${TIMESTAMP}
 
 RUN apt update \
  && apt install --assume-yes --no-install-recommends \
         build-essential \
+        git \
  && find /var/lib/apt -type f -delete
+
+VOLUME /workdir
+WORKDIR /workdir