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openshift-merge-robot merged 1 commit into from
Aug 19, 2020
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docs/dev/operators: Replace stale manifest filename regexp with generic discussion #439

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9 changes: 4 additions & 5 deletions docs/dev/operators.md
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Expand Up @@ -20,10 +20,9 @@ a time.
During upgrades, the contents of `/release-manifests` are applied in order, exactly as `ls` would
return on a standard Linux or Unix derivative. The CVO supports the idea of "run levels" by
defining a convention for how operators that wish to run before other operators should name
their manifests. A run level is of the form `0000_\d\d_[a-z0-9\-]+_<filename>` where the first
digits are the level (see [below for a list of assigned levels](#how-do-i-get-added-as-a-special-run-level)), the second chunk is the component name that
usually matches your operator name (e.g. `kube-apiserver` or `cluster-monitoring-operator`)
and the filename is a local name.
their manifests. Manifest files are of the form `0000_<runlevel>_<dash-separated-component>_<manifest_filename>`, declaring the run level (see [below for a list of assigned levels](#how-do-i-get-added-as-a-special-run-level)), the component name that
usually matches your operator name (e.g. `kube-apiserver` or `cluster-monitoring-operator`),
and a local name to order manifests within a given runlevel/component block.

A few special optimizations are applied above linear ordering - if the CVO sees two different
components that have the same run level - for instance, `0000_70_cluster-monitoring-operator_*` and
Expand Down Expand Up @@ -109,7 +108,7 @@ To do this, you can set .metadata.annotations["release.openshift.io/create-only"

Some operators need to run at a specific time in the release process (OLM, kube, openshift core operators, network, service CA). These components can ensure they run in a specific order across operators by prefixing their manifests with:

0000_<runlevel>_<dash-separated_component>-<manifest_filename>
0000_<runlevel>_<dash-separated-component>_<manifest_filename>

For example, the Kube core operators run in runlevel 10-19 and have filenames like

Expand Down