#!/bin/bash
prepareDockerfileWithBuild(){
cat << EOF > Dockerfile-${artifactId}
# This sample, non-production-ready template describes an Amazon EC2 instance and an Elastic Load Balancer.  
# © 2020 Amazon Web Services, Inc. or its affiliates. All Rights Reserved.  
# This AWS Content is provided subject to the terms of the AWS Customer Agreement available at  
# http://aws.amazon.com/agreement or other written agreement between Customer and either
# Amazon Web Services, Inc. or Amazon Web Services EMEA SARL or both.
FROM 766380763301.dkr.ecr.ap-south-1.amazonaws.com/build/maven:3.3-jdk-8 as BUILD
WORKDIR /usr/src/app
COPY . /usr/src/app
RUN mvn -s sandbox-settings.xml clean install -DskipTests
RUN mkdir -p /var/log/${artifactId} && touch /var/log/${artifactId}/gc.log
FROM 766380763301.dkr.ecr.ap-south-1.amazonaws.com/build/java:8-jdk-slim-secure_v1.0
ADD https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.15.0/jmx_prometheus_javaagent-0.15.0.jar /opt/jmx_exporter.jar
### Config added through configmap
# COPY config.yaml /opt/config.yaml
EXPOSE 8880 8010
COPY --from=BUILD /usr/src/app/target/${artifactId}-${version}.jar /opt/target/${artifactId}.jar
COPY --from=BUILD /var/log/${artifactId} /var/log/${artifactId}
WORKDIR /opt/target
CMD ["${artifactId}.jar", "-javaagent:/opt/jmx_exporter.jar=8880:/opt/config/jmx-config.yaml", \ 
     "-XX:MinRAMPercentage=50.0", "-XX:MaxRAMPercentage=80.0", \ 
     "-XX:+UseParallelGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails", \
     "-XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime", "-XX:+PrintHeapAtGC", \ 
     "-Xloggc:/var/log/${artifactId}/gc.log", \
     "-XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=9000k", \
     "-Xms2G", "-Xmx2G"]
EOF

}

prepareDockerfileNoBuild(){
cat << EOF > Dockerfile-${artifactId}
# This sample, non-production-ready template describes an Amazon EC2 instance and an Elastic Load Balancer.  
# © 2020 Amazon Web Services, Inc. or its affiliates. All Rights Reserved.  
# This AWS Content is provided subject to the terms of the AWS Customer Agreement available at  
# http://aws.amazon.com/agreement or other written agreement between Customer and either
# Amazon Web Services, Inc. or Amazon Web Services EMEA SARL or both.
FROM 766380763301.dkr.ecr.ap-south-1.amazonaws.com/build/maven:3.3-jdk-8 as BUILD
#FROM asia-southeast1-docker.pkg.dev/supply-poc-351106/homelab-devops/maven:3.3-jdk-8 as BUILD
RUN mkdir -p /var/log/${artifactId} && touch /var/log/${artifactId}/gc.log
FROM 766380763301.dkr.ecr.ap-south-1.amazonaws.com/build/java:8-jdk-slim-secure_v1.0
#FROM asia-southeast1-docker.pkg.dev/supply-poc-351106/homelab-devops/java:8
ADD https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.15.0/jmx_prometheus_javaagent-0.15.0.jar /opt/jmx_exporter.jar
### Config added through configmap
# COPY config.yaml /opt/config.yaml
EXPOSE 8880 8010
COPY ${artifactId}/target/*.jar /opt/target/${artifactId}.jar
COPY --from=BUILD /var/log/${artifactId} /var/log/${artifactId}
WORKDIR /opt/target
CMD ["${artifactId}.jar", "-javaagent:/opt/jmx_exporter.jar=8880:/opt/config/jmx-config.yaml", \ 
     "-XX:MinRAMPercentage=50.0", "-XX:MaxRAMPercentage=80.0", \ 
     "-XX:+UseParallelGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails", \
     "-XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime", "-XX:+PrintHeapAtGC", \ 
     "-Xloggc:/var/log/${artifactId}/gc.log", \
     "-XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=9000k", \
     "-Xms2G", "-Xmx2G"]
EOF

}

main(){
     if [[ $# == 4 ]];then
          export artifactId=$1
          export version=$2
          export doBuild=$3
          export repoName=$4
          if [[ $doBuild == "YES" ]];then
               rm -f Dockerfile-${artifactId}
               prepareDockerfileWithBuild
          else
               rm -f Dockerfile-${artifactId}
               prepareDockerfileNoBuild
          fi
          ls -latr
          cat Dockerfile-${artifactId}
     else
          echo "Please provide required parameters"
          exit 1
     fi
}

main $@