FROM: https://github.com/CSC-DevOps/Course/blob/master/HW/HW4.md

• Link

In this homework assignment, you'll get to practice several common architectural patterns for dealing with multiple docker containers.

1. File IO: You want to create a container for a legacy application. You succeed, but you need access to a file that the legacy app creates.

• Create a container that runs a command that outputs to a file.
• Use socat to map file access to read file container and expose over port 9001 (hint can use SYSTEM + cat).
• Use a linked container that access that file over network. The linked container can just use a command such as curl to access data from other container.

• Relevant files in the this folder

2. Ambassador pattern: Implement the remote ambassador pattern to encapsulate access to a redis container by a container on a different host.

• Use Docker Compose to configure containers.
• Use two different VMs to isolate the docker hosts. VMs can be from vagrant, DO, etc.
• The client should just be performing a simple "set/get" request.
• In total, there should be 4 containers.

• Relevant files in the this folder

3. Docker Deploy: Extend the deployment workshop to run a docker deployment process.

• A commit will build a new docker image.
• Push to local registery.
• Deploy the dockerized simple node.js App to blue or green slice.
• Add appropriate hook commands to pull from registery, stop, and restart containers.

• Relevant files in the this folder