Rewritten link command generates invalid host about dokku-postgres HOT 8 CLOSED

For a bit more info, it looks like the generated hostname (for my case) is being set to: dokku-postgres-program_pushfitnesscolorado_com. The actual docker container is named dokku.postgres.program_pushfitnesscolorado_com.

The hostname of the actual VPS is program.pushfitnesscolorado.com. The postgres container is named program_pushfitnesscolorado_com.

The rest of dokku is working correctly (vhost generation and such).

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Can you do docker inspect CID on that container?

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Truncated obviously:

...
"Config": {
        "Hostname": "6c56bf3c44b6",
        "Domainname": "",
}
...

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I need to test this, but I think the problem might be the underscores in the hostname.

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Ok, so underscores seems to be accepted in a hostname (ping works correctly) but when testing with a rails app, I have the following error:

Message from application: the scheme postgres does not accept registry part: postgres:e8ece2babb9a2d5afc4df3ba695c2e39@dokku-postgres-program_pushfitnesscolorado_com:5432 (or bad hostname?)

Renaming the docker link to dokku-postgres-program-pushfitnesscolorado-com instead seems to work as expected. I’ll make a patch ;)

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@wingrunr21 fixed in latest master, thank you for reporting!

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@Flink you think this is ready to port elsewhere?

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I’ll port it at the same time I’m porting the revamped link/unlink commands (since otherwise we still use IP instead of hostnames)

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