NOTE20180329

Note of Day 1

• Why docker ?
  • Software development changes
  • Container vs. VM
  • Container vs. Process
• Docker
  • Build => Image
  • Ship => Registry
  • Run => Container
• Hello world with Docker
  • docker image
  • docker container

Java Workshop

Hello.java

public class Hello {
	public static void main(String[] args) {
		System.out.println("Hello Docker from Java");
	}
}

How to run ?

$docker container run --rm  -v $(pwd):/test -w /test openjdk:10-jdk-slim javac Hello.java
$docker container run --rm  -v $(pwd):/test -w /test openjdk:10-jdk-slim java Hello

• Write Dockerfile
• Build image from Dockerfile

Note of Day 2

• Basic of Networking
• Basic of Volume
• Workshop with Java Web application (Apache Maven + Apache Tomcat + Mysql)

Step 1.1 Build WAR file with Apache Maven

$docker image pull maven:3.5.3-jdk-8-alpine
$docker container run --rm -w /src -v $(pwd):/src maven:3.5.3-jdk-8-alpine mvn clean package

Step 1.2 Build WAR file with Apache Maven with Container Volume

// Create container volume with busybox to keep all dependencies/libraries
$docker container run --name m2 -v /root/.m2 busybox

// Create container to build WAR file
$docker container run --rm -w /src -v $(pwd):/src --volumes-from m2 maven:3.5.3-jdk-8-alpine mvn clean package

Step 1.3 Build WAR file with Dockerfile

$docker image build -t maven_build -f Dockerfile_build .
$docker container run --rm -v $(pwd)/m2:/root/.m2  maven_build:latest

• Working with MySQL + Initial data
• Working with Docker compose
• Working with Docker swarm
• Working with Registry