Added build stage to resource server Dockerfile

Author: Luigi Ferrettino

oauth2-resource-server/Dockerfile

@@ -1,8 +1,32 @@
+#### Stage 1: Build the application
+FROM openjdk:8-jdk-alpine as build
+
+# Set the current working directory inside the image
+WORKDIR /app
+
+# Copy the root pom.xml and the oauth2-resource-server context
+RUN mkdir oauth2-resource-server 
+COPY ./oauth2-resource-server/ ./oauth2-resource-server
+COPY ./pom.xml .
+
+# Change de directory inside the oauth2-resource-server folder
+WORKDIR /app/oauth2-resource-server
+
+# Enable permissions on Maven executable
+RUN chmod u+x ./mvnw
+
+# Package the application .jar
+RUN ./mvnw clean package liberty:package-server -Dinclude=runnable
+
+#### Stage 2: A minimal docker image with command to run the app 
 FROM openjdk:8-jre-alpine
 
-# Add my app and config
-COPY target/oauth2-resource-server.jar ./
+# Set root workdir and copy the builded .jar from the previous stage
+WORKDIR /
+COPY --from=build /app/oauth2-resource-server/target/oauth2-resource-server.jar ./
 
+# Expose the 9280/tcp port
 EXPOSE 9280
 
-CMD java -jar oauth2-resource-server.jar
+# Run the server when the docker starts
+CMD ["java", "-jar", "oauth2-resource-server.jar"]

oauth2-resource-server/src/main/resources/META-INF/microprofile-config.properties

@@ -1,2 +1,2 @@
 mp.jwt.verify.publickey.location=/META-INF/public-key.pem
-mp.jwt.verify.issuer=http://localhost:9080
+mp.jwt.verify.issuer=http://172.28.1.2:9080