List of Listings

Chapter 1. Discovering Docker

Listing 1.1. The todoapp Dockerfile

Listing 1.2. docker run output for todoapp

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. Extracting the filesystem of a VM image

Listing 3.2. Extracting a partition

Listing 3.3. Extracting the filesystem of a running VM

Listing 3.4. Adding an archive to a Docker image

Listing 3.5. Running the phusion base image

Listing 3.6. Processes running in a host-like container

Listing 3.7. Setting up a simple PostgreSQL, NodeJS, and Nginx application

Listing 3.8. Dockerfile for a monolithic application

Listing 3.9. Dockerfile for the postgres service

Listing 3.10. Dockerfile for the nodejs service

Listing 3.11. Dockerfile for the nginx service

Listing 3.12. Faster Dockerfile for the nginx service

Listing 3.13. Example Supervisor Dockerfile

Listing 3.14. supervisord_add.conf

Listing 3.15. Run the supervised container

Listing 3.16. Debugging the application in a terminal

Listing 3.17. Committing container state

Listing 3.18. Running up both committed images as containers

Listing 3.19. A simple docker tag command

Listing 3.20. An image with multiple tags

Listing 3.21. Copying a public image and pushing to adev’s Docker Hub account

Listing 3.22. Copying a public image and pushing to adev’s private registry

Listing 3.23. Dockerfile with a specific image ID

Listing 3.24. Start the 2048 container