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fix: deflake haproxy bats tests

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The byjg/easy-haproxy image polls Docker for label changes every 10
seconds by default, which races with the haproxy bats suite and
intermittently produces curl exit 7. Expose `refresh-conf` as a
global-only haproxy property that maps to `EASYHAPROXY_REFRESH_CONF`,
lower it to 2 seconds in the bats setup, and wrap the localhost HTTP
assertions in a retry loop so checks wait for haproxy to converge
rather than failing on the first attempt.
This commit is contained in:
Jose Diaz-Gonzalez
2026-04-30 15:03:40 -04:00
parent 8f8a23aac3
commit 53ef8c7780
7 changed files with 81 additions and 13 deletions
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10
docs/networking/proxies/haproxy.md
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@@ -113,6 +113,16 @@ dokku haproxy:set --global log-level DEBUG
After modifying, the Haproxy container will need to be restarted.
### Changing the Haproxy refresh interval
Haproxy polls the Docker API for label changes every `10` seconds by default. The interval may be changed by setting the `refresh-conf` property with the `--global` flag:
```shell
dokku haproxy:set --global refresh-conf 5
```
The `refresh-conf` property is global-only and cannot be set on a per-app basis. Setting an empty value will reset it to the default. After modifying, the Haproxy container will need to be restarted.
### Label Management
The Haproxy plugin allows you to add custom container labels to apps. These labels are injected into containers during deployment and can be used to configure Haproxy behavior beyond what the plugin provides by default.