Dockerfile improvements

Author: filipesperandio

Dockerfile

@@ -2,33 +2,30 @@ FROM java:8-jdk-alpine
 
 MAINTAINER Code Climate
 
-USER root
 RUN adduser -u 9000 -D app
 VOLUME /code
 
-# Create a writeable directory for the code as sonar needs to
-# create a `.sonarlint` directory during analysis
-RUN mkdir -p /code-read-write && \
-      chown -R app:app /code-read-write && \
-      chmod -R 777 /code-read-write
+# Increase Java memory limits
+ENV JAVA_OPTS="-XX:+UseParNewGC -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -Xss4096k"
 
 ENV GRADLE_USER_HOME=/opt/gradle
 RUN mkdir -p $GRADLE_USER_HOME && \
       chown -R app:app $GRADLE_USER_HOME && \
       chmod g+s $GRADLE_USER_HOME
 
-COPY . /usr/src/app
-RUN chown -R app:app /usr/src/app
+RUN mkdir -p /code-read-write && \
+      chown -R app:app /code-read-write && \
+      chmod -R 777 /code-read-write
 
 WORKDIR /usr/src/app
-RUN ./gradlew clean build compileTest -x test && \
-      find /opt -name "*.zip" | xargs rm -f
 
-# Increase Java memory limits
-ENV JAVA_OPTS="-XX:+UseParNewGC -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -Xss4096k"
+COPY . ./
+RUN chown -R app:app ./
+
+RUN ./gradlew build compileTest -x test && \
+      find /opt -name "*.zip" | xargs rm -f
 
 # Switch to app user, copy code to writable directory, and run the engine
 USER app
-ENTRYPOINT []
 WORKDIR /code-read-write
 CMD cp -R /code/* . && /usr/src/app/build/codeclimate-sonar /code-read-write