[FAB-13436] multistage docker build

Change-Id: I376057f62cd7df29c31a22c8c6248f7192183939
Signed-off-by: Artem Barger <bartem@il.ibm.com>

Author: C0rWin

fabric-chaincode-docker/Dockerfile

@@ -1,52 +1,71 @@
-FROM hyperledger/fabric-baseimage:amd64-0.4.14
+FROM hyperledger/fabric-baseimage:amd64-0.4.14 as builder
 RUN apt-get update
 RUN apt-get install zip -y
-RUN curl  -s "https://get.sdkman.io" | bash
+RUN curl -s "https://get.sdkman.io" | bash
 
 SHELL ["/bin/bash", "-c"]
 
-# Install gradle and maven
 RUN source /root/.sdkman/bin/sdkman-init.sh; sdk install gradle 4.6
 RUN source /root/.sdkman/bin/sdkman-init.sh; sdk install maven 3.5.0
 
+FROM hyperledger/fabric-baseimage:amd64-0.4.14 as dependencies
+COPY --from=builder /root/.sdkman/candidates/gradle/current /usr/bin/gradle
+COPY --from=builder /root/.sdkman/candidates/maven/current /usr/bin/maven
+
+ENV PATH="/usr/bin/maven/bin:/usr/bin/maven/:/usr/bin/gradle:/usr/bin/gradle/bin:${PATH}"
+
 # Coping libs, scripts and sources
 ADD build/distributions/ /root/
 
 #Creating folders structure
 RUN mkdir -p /root/chaincode-java/chaincode/src
 RUN mkdir -p /root/chaincode-java/chaincode/build/out
-RUN mkdir -p /chaincode/input
-RUN mkdir -p /chaincode/output
 
 #Making scripts runnable
 RUN chmod +x /root/chaincode-java/start
 RUN chmod +x /root/chaincode-java/build.sh
 
 # Start build shim jars
 WORKDIR /root/chaincode-java/shim-src
-RUN source /root/.sdkman/bin/sdkman-init.sh; gradle clean
+RUN gradle clean
 
 # Building protobuf jar and installing it to maven local and gradle cache
 WORKDIR /root/chaincode-java/shim-src/fabric-chaincode-protos
-RUN source /root/.sdkman/bin/sdkman-init.sh; gradle clean build install publishToMavenLocal
+RUN gradle clean build install publishToMavenLocal
 # Installing all jar dependencies to maven local
 WORKDIR /root/chaincode-java/shim-src/fabric-chaincode-protos/build/publications/protosJar/
-RUN source /root/.sdkman/bin/sdkman-init.sh; mvn -f pom-default.xml compile
+RUN mvn -f pom-default.xml compile
 
 # Building shim jar and installing it to maven local and gradle cache
 WORKDIR /root/chaincode-java/shim-src/fabric-chaincode-shim
-RUN source /root/.sdkman/bin/sdkman-init.sh; gradle clean build install publishToMavenLocal
+RUN gradle clean build install publishToMavenLocal
 # Installing all jar dependencies to maven local
 WORKDIR /root/chaincode-java/shim-src/fabric-chaincode-shim/build/publications/shimJar/
-RUN source /root/.sdkman/bin/sdkman-init.sh; mvn -f pom-default.xml compile
+RUN mvn -f pom-default.xml compile
 
 # Sanity check and maven/gradle plugin installs - compiling sample chaincode - gradle and maven
 WORKDIR /root/chaincode-java/example-src/fabric-chaincode-example-gradle
-RUN source /root/.sdkman/bin/sdkman-init.sh; gradle build shadowJar
+RUN gradle build shadowJar
 WORKDIR /root/chaincode-java/example-src/fabric-chaincode-example-maven
-RUN source /root/.sdkman/bin/sdkman-init.sh; mvn compile package
+RUN mvn compile package
 WORKDIR /root/chaincode-java
 
 #Removing non-needed sources
-RUN rm -rf example-src/*
+RUN rm -rf example-src
 RUN rm -rf shim-src
+
+# Creating final javaenv image which will include all required
+# dependencies to build and compile java chaincode
+FROM hyperledger/fabric-baseimage:amd64-0.4.14
+COPY --from=builder /root/.sdkman/candidates/gradle/current /usr/bin/gradle
+COPY --from=builder /root/.sdkman/candidates/maven/current /usr/bin/maven
+
+ENV PATH="/usr/bin/maven/bin:/usr/bin/maven/:/usr/bin/gradle:/usr/bin/gradle/bin:${PATH}"
+
+COPY --from=dependencies /root/chaincode-java /root/chaincode-java
+COPY --from=dependencies /root/.m2 /root/.m2
+
+RUN mkdir -p /chaincode/input
+RUN mkdir -p /chaincode/output
+
+WORKDIR /root/chaincode-java