Small fixes to the github controller docker image flow (#27)

* Updating the github workflow to automatically create docker images for each master commit

Signed-off-by: David McCloskey <dave@juicelabs.co>

* Small fixes to the github controller docker image flow

Signed-off-by: David McCloskey <dave@juicelabs.co>

---------

Signed-off-by: David McCloskey <dave@juicelabs.co>

.github/workflows/controller-docker-image.yml

@@ -31,6 +31,9 @@ jobs:
       - name: Controller Image
         uses: docker/build-push-action@v3
         with:
+          build-args: |
+            BASE_CONTAINER=ubuntu:22.04
+            JUICE_VERSION=${{ steps.version.outputs.version }}
           context: docker/controller
           push: true
           tags: juicelabs/controller:${{ steps.version.outputs.version }}

docker/controller/Dockerfile

@@ -9,6 +9,11 @@ RUN cd /tmp/juice && \
 
 FROM ${BASE_CONTAINER}
 
+ARG JUICE_VERSION
+ENV JUICE_VERSION=${JUICE_VERSION}
+LABEL "juicelabs.co/version"=${JUICE_VERSION}
+LABEL maintainer="JUICE TECHNOLOGIES <juicelabs.co>"
+
 ARG PORT=8080
 ENV PORT=${PORT}
 EXPOSE ${PORT}
@@ -18,5 +23,3 @@ WORKDIR /root
 COPY --from=build /tmp/juice/controller .
 
 ENTRYPOINT ["/bin/bash", "-c", "./controller --address 0.0.0.0:${PORT}", "--"]
-
-LABEL maintainer="JUICE TECHNOLOGIES <juicelabs.co>"