Using docker-compose with CI - how to deal with exit codes and daemonized linked containers?

Question

Right now our Jenkins agents generate a docker-compose.yml for each of our Rails projects and then run docker-compose up. The docker-compose.yml has a main \"web\" container

Answer 1

Building on kojiro's answer:

docker-compose ps -q | xargs docker inspect -f '{{ .State.ExitCode }}' | grep -v '^0' | wc -l | tr -d ' '

1. get container IDs
2. get last runs exit code for each container ID
3. only status codes that does not start with '0'
4. count number of non-0 status codes
5. trim out white space

Returns how many non-0 exit codes were returned. Would be 0 if everything exited with code 0.