chore(apm): add apm to do analysis on docker build phase

Closes #95

backend/src/main/docker/apm/Dockerfile

@@ -0,0 +1,22 @@
+FROM davinkevin/podcast-server:dev
+MAINTAINER Kevin DAVIN  <https://github.com/davinkevin/Podcast-Server/issues>
+
+# Exposed port for 4000 for the APM part
+EXPOSE 4000
+
+WORKDIR /opt
+RUN mkdir -p /opt/glowroot && ls -al
+COPY glowroot /opt/glowroot
+
+WORKDIR /opt/podcast-server
+ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom", "-javaagent:/opt/glowroot/glowroot.jar","-jar","/opt/podcast-server/app.jar"]
+
+# RUN with docker like that :
+# $ docker run -it -p 8080:8080 davinkevin/podcast-server:v1.0.0
+
+# To configure it with external application.(properties|yaml), you can mount the file like this :
+#
+# $ docker run -it -v /path/to/application.yml:/opt/podcast-server/application.yml -p 8080:8080 davinkevin/podcast-server:dev-with-apm
+#
+# /!\ You can't override values defined as ENV in this Dockerfile through the application.yml. If you still want to, you have
+# to use the `-e` flag of docker : -e podcastserver.backup.location='/opt/podcast-server/backup/'

backend/src/main/docker/apm/admin.json

@@ -0,0 +1,7 @@
+{
+  "web": {
+    "port": 4000,
+    "bindAddress": "0.0.0.0",
+    "sessionTimeoutMinutes": 30
+  }
+}

docker-build.sh

@@ -2,12 +2,31 @@
 
 set -euo pipefail
 
+docker_build_with_apm () {
+   echo "build docker image davinkevin/podcast-server:$1-with-apm"
+   mkdir -p backend/target/docker
+   cp backend/src/main/docker/apm/Dockerfile backend/target/docker/
+
+   curl -L -o /tmp/glowroot.zip https://github.com/glowroot/glowroot/releases/download/v0.10.8/glowroot-0.10.8-dist.zip
+   unzip -o /tmp/glowroot.zip -d /tmp/
+   cp -r /tmp/glowroot backend/target/docker/
+   cp backend/src/main/docker/apm/admin.json backend/target/docker/glowroot/
+
+   cd backend/target/docker
+   docker build . -t davinkevin/podcast-server:$1-with-apm
+
+   rm -rf /tmp/glowroot.zip /tmp/glowroot backend/target/docker
+   return
+}
+
 docker_build () {
    echo "build docker image davinkevin/podcast-server:$1"
    mkdir -p backend/target/docker
-   cp backend/target/Podcast-Server.jar backend/src/main/docker/Dockerfile backend/target/docker
+   cp backend/target/Podcast-Server.jar backend/src/main/docker/main/Dockerfile backend/target/docker/
    cd backend/target/docker
    docker build . -t davinkevin/podcast-server:$1
+   cd ../../..
+   rm -rf backend/target/docker/*
    return
 }
 
@@ -17,6 +36,7 @@ fi
 
 if [ "$TRAVIS_BRANCH" == "dev" ]; then
   docker_build dev
+  docker_build_with_apm dev
   exit 0;
 fi