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refactor/sync-period (#188) 

* refactor: adding explicit sync-period flag

* docs: adding mroe detail for sync period config

* docs: spelling 🙃

Co-authored-by: Callum Tait <callum.tait@PBXUK-HH-05772.photobox.priv>
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Yusuke Kuoka 2020-11-14 22:07:22 +09:00 committed by GitHub
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2
README.md
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@ -236,7 +236,7 @@ spec:
- summerwind/actions-runner-controller
```
Please also note that the sync period is set to 10 minutes by default and it's configurable via `--sync-period` flag.
The scale out performance is controlled via the manager containers startup `--sync-period` argument. The default value is 10 minutes to prevent unconfigured deployments rate limiting themselves from the GitHub API. The period can be customised in the `config/default/manager_auth_proxy_patch.yaml` patch for those that are building the solution via the kustomize setup.
Additionally, the autoscaling feature has an anti-flapping option that prevents periodic loop of scaling up and down.
By default, it doesn't scale down until the grace period of 10 minutes passes after a scale up. The grace period can be configured by setting `scaleDownDelaySecondsAfterScaleUp`:

1
config/default/manager_auth_proxy_patch.yaml
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@ -23,3 +23,4 @@ spec:
args:
- "--metrics-addr=127.0.0.1:8080"
- "--enable-leader-election"
- "--sync-period=10m"