Containerise an app you did not write

Why it matters

'Works on my machine' is the problem containers solve. Doing this to somebody else's app forces you to actually read how it starts, which is the useful part.

What you build

• A Dockerfile that builds and runs it
• An image small enough to be reasonable
• Configuration through environment variables
• docker compose bringing up its database too

If you want more

• Add a health check
• Publish it to a registry