Developing Java Applications with Spring and Spring Boot

Running the Tracked Hashtag Service container

The image has been created in the previous section, so now we are able to spin up the container. The command to start the container should look like this:

docker run -d --name tracked --net twitter -p 9090:9090 springfivebyexample/tracked_hashtag

Let's explain the instruction. -d tells the Docker engine to run the container in background mode or detached.  The other important parameter is --net, which attaches the container to the desired network.

We can use the following command to tail the container logs at runtime:

docker logs tracked -f

This command is like the tail -f command on Linux, which looks at the last part of the log stream. We can remove the flag -f to see the last lines of the log. ...