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Merge pull request #3059 from lwm/host-header-notes

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Add note for runtime host configuration for checks.
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Jose Diaz-Gonzalez
2018-02-13 02:43:32 -05:00
committed by GitHub
parent 124072df95 d8878fdfe2
commit a80bd92f40
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docs/deployment/zero-downtime-deploys.md
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@@ -15,6 +15,14 @@ By default, Dokku will wait `10` seconds after starting each container before as
You may both create user-defined checks for web processes using a `CHECKS` file, as well as customize any and all parts of this experience using the checks plugin.
> Web checks are performed via `curl` on Dokku host. Some application code - such
> as the Django framework - checks for specific hostnames or header values, these
> checks will fail. To avoid this:
>
> - Remove such checks from your code: Modify your application to remove the hostname check completely
> - Allow checks from all hostnames: Modify your application to accept a dynamically provided hostname
> - Specify the domain within the check: See below for further documentation
## Configuring Check Settings using the `config` plugin
There are certain settings that can be configured via environment variables: