Intellij IDEA Docker Plugin on Ubuntu Linux

By Fabian Stäber |

This blog post shows how to set up the new Docker plugin for Intellij IDEA 14.1 on Ubuntu Linux 14.10. **1. Install Docker If you haven’t installed Docker already, use the following command to install it:

wget -qO- https://get.docker.com/ | sudo sh

**2. Enable the HTTP-based Docker Management API The standard Docker installation on Linux uses a Unix Socket for providing the management API. However, the Intellij Docker plugin requires a HTTP interface for communicating with the Docker server. In order to enable the HTTP-based management API, edit the file /etc/init/docker.conf and update the DOCKER_OPTS environment variable: DOCKER_OPTS=’-H tcp://0.0.0.0:2376 -H unix:///var/run/docker.sock'

Then restart Docker with the following command sudo service docker restart

**3. Open the Example Project in Intellij IDEA Like the Intellij IDEA Blog, we use the Wildfly Hello World Quickstart as an example application. Clone the quickstarts with git: git clone https://github.com/wildfly/quickstart.git and open the quickstart/helloworld project in Intellij IDEA.

**4. Install the Intellij Docker Plugin In the Plugins dialog, click the Install JetBrains Plugins button. Search for the Docker Plugin and install it. Restart Intellij.

**5. Add Docker Cloud Settings In the Settings dialog, search for Cloud, and use the + button to add a Docker cloud setting.

The API URL setting corresponds to the configuration from Step 2, which is http://localhost:2376 (not https). The certificates folder is empty.

If everything is alright, the dialog shows *Connection successful under the *Certificates folder.

**6. Create a Dockerfile Create a directory docker-dir in the project root, and create a file named Dockerfile with the following content:

FROM jboss/wildfly
ADD wildfly-helloworld.war /opt/jboss/wildfly/standalone/deployments/

**7. Configure Target Directory for the WAR File The file wildfly-helloworld.war must be created in the same directory where the Dockerfile is located. In order to do so, open the *Project Structure dialog and configure the *Output directory for wildfly-helloworld.war.

project-structure
**8. Create Run Configuration In the *Run/Debug Configurations dialog, add a new *Docker Deployment configuration
run-configuration-01
Set the *Name to *Docker deploy, and the *Container name to *docker-deploy.
run-configuration-02-container-name
Click the button to the right of *Container settings to auto-generate a container_settings.json file. Create the file in a new directory called *docker-settings.
run-configuration-03-container-settings
As *Before launch, add a step to build the artifact wildfly-helloworld.war.
run-configuration-04-build-artifact-before-launch.png
**9. Run the Docker Container When run for the first time, the startup may take a long time, because Docker needs to pull the jboss/wildfly image from the Docker hub.
running
**10. Find Out the Container's IP Address Run the docker inspect command by right-clicking on the running container. The output includes the container's IP address.
inspect
**11. View in Browser The hello world application can now be accessed with a Web browser on http://172.17.0.2:8080/wildfly-helloworld/HelloWorld (depending on the container's IP address).
browser