level="fatal" msg="cannot enable tty mode on non tty input"

[pdxbmw]

The dokku run command executes the docker run command in interactive mode, which causes remote commands to terminate with the error:

level="fatal" msg="cannot enable tty mode on non tty input"

(I was trying to setup a cronjob to run nightly). The only way I could get this to work was to manually execute docker run without the -i switch instead of executing dokku run.

Cronjob:

Doesn't work:
0 15 * * * bash -c ': | PATH="$PATH:/usr/local/bin" dokku run www python main.py' > /tmp/main.output
Works:
0 15 * * * bash -c ': | PATH="$PATH:/usr/local/bin" docker run -t dokku/www /exec python main.py' > /tmp/main.output

[michaelshobbs]

Perhaps related to #552 or new in the latest docker version. Not sure of the right solution here. Perhaps we can detect when we have a TTY and pass -i or not.

[pdxbmw]

Hmm, the only reference I see in the Docker release notes is back in version 1.3.1, but it's not clear to me what they fixed. For what it's worth, my first cronjob command worked before I upgraded Dokku (I believe I was on 0.2.0).

[michaelshobbs]

@pdxbmw #914 seems to solve your issue. can you confirm?

[pdxbmw]

Yes, I resorted back to my original command and it worked perfectly.