--await for healthcheck

[James-E-A]

When running docker-compose up -d, I'd like to be able to block until the container is actually running and "healthy", if possible.

e.g., a service will wait for its dependencies to be healthy before starting, but I'm kicked back out to the shell (or shell script, as it were,) before waiting for the actual invocation to mature to health.

I propose syntax along the lines of

#!/bin/sh
docker-compose up -d --await=web &&\
  echo "The service is running and healthy." ||\
  echo "There was a problem bringing up the service."

[James-E-A]

While there are 3rd-party scripts such as https://github.com/vishnubob/wait-for-it, as well as e.g. simply until wget --spider localhost:4000 ; do sleep 1 ; done, it seems a bit strange that there's no built-in way to await the healthchecks that we've already so carefully coded into our docker-compose.yml files.

[branchv]

I was also expecting this functionality, imagining a docker-compose up -d --wait (similar to helm). Our use case is a CI/CD environment where we want to ensure our tests are run only after all our containers are healthy.

For others in a similar position, I found https://github.com/nicolas-van/docker-compose-wait to be exactly what I needed.

[branchv]

seems this is being implemented! see #8351

[benesch]

It shipped! See #8777.

[ndeloof]

Yes indeed, docker-compose up -d --wait actually already is there :)