docker: Cleanup, add health check

Author: kallisti5

Dockerfile

@@ -3,6 +3,9 @@ FROM rustlang/rust:nightly
 WORKDIR /usr/srv/hpkgbouncer
 COPY . .
 
-RUN cargo install --path .
+RUN cargo install --path . \
+	&& rm -rf *
 
 CMD ["hpkgbouncer"]
+
+HEALTHCHECK --start-period=5m CMD curl --fail http://`hostname`:8000/ || exit 1

Makefile

@@ -1,4 +1,5 @@
 default:
+	cargo clean
 	docker build --no-cache --tag docker.io/haiku/hpkgbouncer:0.2.0 .
 push:
 	docker push docker.io/haiku/hpkgbouncer:0.2.0