List of Listings

Chapter 2. Understanding Docker—inside the engine room

Listing 2.1. Connecting to the container netcat server with Telnet

Chapter 3. Using Docker as a lightweight virtual machine

Listing 3.1. Processes running in a host-like container

Listing 3.2. Setting up a simple PostgreSQL, NodeJS, and Nginx application

Listing 3.3. Database Dockerfile

Listing 3.4. App Dockerfile

Listing 3.5. Web server Dockerfile

Listing 3.6. Reordered Dockerfile to perform npm install earlier

Listing 3.7. Example Supervisor Dockerfile

Listing 3.8. supervisord_add.conf

Listing 3.9. An image with multiple tags

Listing 3.10. Copying a public image and pushing to adev’s Docker Hub account

Listing 3.11. Copying a public image and pushing to adev’s private registry

Listing 3.12. Start the 2048 container

Listing 3.13. Return to the saved game

Chapter 4. Day-to-day Docker

Listing 4.1. Set up directory and find out your user details

Listing 4.2. Build the gui image

Listing 4.3. Run the gui image

Listing 4.4. Raw inspect output on an image

Listing 4.5. Determining a container’s IP address

Listing 4.6. Get IPs of running containers and ping each in turn

Listing 4.7. Rebuilding with the cache

Listing 4.8. Forcing a rebuild without using the cache

Listing 4.9. Generating an image of your layer tree

Listing 4.10. Run a container to run docker exec commands on

Listing 4.11. Run an echo command from the container

Listing 4.12. Delete log files older than a week on a container