[Bug] Container name error message is not clear enough

[jriberg]

What happened?

Container name error message says "Name must be a string of numbers, letters, underscores, or hyphens(09,azA~Z,_,-).", but my container name is "docker-ip-addr-manager-socket-proxy".
After testing with numbers, i found that the error comes at 33 chars length, so the limit seems to be 32?

Suggestion: Update the error message to include " And maximum length of 32 characters", or better, have different messages if it breaks the regex for checking, or length of input.

Screenshots