docker.md

Building and Running an Application using Docker

In order to run an application using Docker, make sure that Docker is installed and running first.

Next, open a terminal in the generated-sources folder and use the following command in order to build the application:

./dockerBuild.sh

After, run the application using:

./dockerRun.sh

The application is now running inside of a docker container with the name hierarchy.example:latest. In order to verify that the container is instantiated correctly, you can run:

docker ps

In the resulting list, there should be a container with the correct name.

You can also look at the current logs of any instance. For our example, this would be done using the following command:

docker logs -f hierarchy.example

In this case, hierarchy.example is the fully qualified instance name. If your application is split (by using the Splitting = LOCAL mode in the pom.xml of the application), the fully qualified instance names would be hierarchy.Example.sink, for example.

After running the command above, the output should look similar to this:

As you can see, the Source component is sending a new value every second, which is then received by the Sink component.

If you want to stop the application you can do the following:

./dockerStop.sh