Merge pull request #7 from thalesmg/docker-stages

ci: shrink docker image

.github/workflows/test.yaml

@@ -1,6 +1,6 @@
 name: test
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   test:

Dockerfile

@@ -1,4 +1,7 @@
-FROM clojure:latest
+ARG BUILD_FROM=clojure:latest
+ARG RUN_FROM=eclipse-temurin:8u422-b05-jre-noble
+
+FROM ${BUILD_FROM} AS builder
 
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
@@ -7,4 +10,10 @@ COPY . /usr/src/app
 RUN clojure -T:build uber && \
     mv target/emqx-snowflake-proxy-*-standalone.jar app-standalone.jar
 
+FROM ${RUN_FROM} AS runner
+
+COPY --from=builder /usr/src/app/app-standalone.jar /opt/proxy/app-standalone.jar
+
+WORKDIR /opt/proxy
+
 CMD ["java", "-jar", "app-standalone.jar"]