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Dockerize

[Working phase 01.03]

Install Docker

  1. Install the most recent Docker Community Edition package.

    sudo amazon-linux-extras install docker

  2. Start the Docker service.

    sudo service docker start

  3. Add the ec2-user to the docker group so you can execute Docker commands without using sudo.

    sudo usermod -a -G docker ec2-user

  4. Log out and log back in again to pick up the new docker group permissions. You can accomplish this by closing your current SSH terminal window and reconnecting to your instance in a new one. Your new SSH session will have the appropriate docker group permissions.

  5. Verify that the ec2-user can run Docker commands without sudo.

    docker info

Note
In some cases, you may need to reboot your instance to provide permissions for the ec2-user to access the Docker daemon. Try rebooting your instance if you see the following error:

Cannot connect to the Docker daemon. Is the docker daemon running on this host?

Dockerize TicketMonster

  1. Create a new folder and download all required files
cd ~
mkdir Dockerize
cd Dockerize
wget https://materialien.s3.eu-central-1.amazonaws.com/workshop/dockerize/commands.cli
wget https://materialien.s3.eu-central-1.amazonaws.com/workshop/dockerize/customize.sh
wget https://materialien.s3.eu-central-1.amazonaws.com/workshop/dockerize/postgresql-9.4-1202.jdbc41.jar
wget https://materialien.s3.eu-central-1.amazonaws.com/workshop/dockerize/ticket-monster.war
wget https://materialien.s3.eu-central-1.amazonaws.com/workshop/dockerize/Dockerfile

Wait here and let us talk about the files.

Now we have to create a RDS Instance together

docker build -t ticketmonster .
docker run -d -p 8080:8080 -e DB_HOST=ticketmonster-2.cqqhnwljvdgd.eu-central-1.rds.amazonaws.com -e DB_PORT=5432 -e DB_USERNAME=ticketmonster -e DB_PASSWORD=ticketmonster -e DB_NAME=postgres ticketmonster