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Allow configuring pod priority globally and per cluster. (#353)

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* Allow configuring pod priority globally and per cluster.

Allow to specify pod priority class for all pods managed by the operator,
as well as for those belonging to individual clusters.

Controlled by the pod_priority_class_name operator configuration
parameter and the podPriorityClassName manifest option.

See https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
for the explanation on how to define priority classes since Kubernetes 1.8.

Some import order changes are due to go fmt.
Removal of OrphanDependents deprecated field.

Code review by @zerg-junior
This commit is contained in:
Oleksii Kliukin
2018-08-03 14:03:37 +02:00
committed by GitHub
parent ac7b132314
commit 59f0c5551e
21 changed files with 96 additions and 68 deletions
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docs/reference/cluster_manifest.md
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@@ -89,7 +89,14 @@ Those are parameters grouped directly under the `spec` key in the manifest.
examples](https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/)
for details on tolerations and possible values of those keys. When set, this
value overrides the `pod_toleration` setting from the operator. Optional.
* **podPriorityClassName**
a name of the [priority
class](https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass)
that should be assigned to the cluster pods. When not specified, the value
is taken from the `pod_priority_class_name` operator parameter, if not set
then the default priority class is taken. The priority class itself must be defined in advance.
## Postgres parameters
Those parameters are grouped under the `postgresql` top-level key.