Surface that container healthcheck is failing and how it's failing

[raphaeltm]

I had a healthcheck using the wget instead of curl, and it failed, but I didn't realize because there were no logs. It would be nice if we could surface the logs from the container healthcheck.

[edwardrf]

• we could suggest healthcheck could be failing
• we could do our own health check

[raphaeltm]

• we could suggest healthcheck could be failing
• we could do our own health check

I think either of those would be helpful, but I think telling the user to check the healthcheck would be my preferred solution, just in case we do a healthcheck that returns a false-positive because we don't know their app's structure.