compose-wright command

[graingert]

a tool that has the same command line args as docker-compose:

• reads a docker-compose config
• parses out all the "image:" declarations
• checks if they are in the shipwright config
• builds only those required images (+deps, and only if there's a new commit or unchecked in changes)
• runs docker compose, but with the image declartions replaced with the commit specific ones

[graingert]

This would be really handy with the build-with functionality

[danpalmer]

+1 for this, the idea sounds great.