part3

Part 3

Creating a Sun Java image and executing terminal commands.

Docker commands

Talk about and try:

• docker build
• docker run
• docker ps
• docker exec

Create a Custom Image

Create a custom Dockerfile based on expertsystems/oracle-jdk8

• Base image on java layer: FROM expertsystems/oracle-jdk8.
• Build your new image: docker build -t findout/oracle-jdk8:latest .

Start Container from Custom Image

• Start in detached mode with tty active docker run --name dockerlab-jdk8 -d -t dockerlab/oracle-jdk8.
• docker ps
• Take a look in your container: docker exec -it dockerlab-jdk8 bash.
• docker rm -f dockerlab-jdk8
• Start a container and execute a single command docker run -i -t dockerlab/oracle-jdk8 java -version.
• Start a container and enter tty docker run -i -t findout/oracle-jdk8.
• Verify that nothing is running docker ps.