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add preferred during scheduling pod anti affinity (#2048)

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* add preferred during scheduling pod anti affinity

Co-authored-by: Felix Kunde <felix-kunde@gmx.de>
This commit is contained in:
Francois Parquet
2023-01-02 18:22:47 +01:00
committed by GitHub
co-authored by Felix Kunde
parent 93a253bde1
commit be7b52db92
10 changed files with 215 additions and 89 deletions
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docs/administrator.md
+5 -2
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@@ -15,7 +15,7 @@ CRDs set `enable_crd_registration` config option to `false`.
CRDs are defined with a `openAPIV3Schema` structural schema against which new
manifests of [`postgresql`](https://github.com/zalando/postgres-operator/blob/master/manifests/postgresql.crd.yaml) or [`OperatorConfiguration`](https://github.com/zalando/postgres-operator/blob/master/manifests/operatorconfiguration.crd.yaml)
resources will be validated. On creation you can bypass the validation with
resources will be validated. On creation you can bypass the validation with
`kubectl create --validate=false`.
By default, the operator will register the CRDs in the `all` category so
@@ -516,6 +516,9 @@ configuration:
enable_pod_antiaffinity: true
```
By default the type of pod anti affinity is `requiredDuringSchedulingIgnoredDuringExecution`,
you can switch to `preferredDuringSchedulingIgnoredDuringExecution` by setting `pod_antiaffinity_preferred_during_scheduling: true`.
By default the topology key for the pod anti affinity is set to
`kubernetes.io/hostname`, you can set another topology key e.g.
`failure-domain.beta.kubernetes.io/zone`. See [built-in node labels](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#interlude-built-in-node-labels) for available topology keys.
@@ -1091,7 +1094,7 @@ data:
USE_WALG_BACKUP: "true"
USE_WALG_RESTORE: "true"
CLONE_USE_WALG_RESTORE: "true"
WALG_AZ_PREFIX: "azure://container-name/$(SCOPE)/$(PGVERSION)" # Enables Azure Backups (SCOPE = Cluster name) (PGVERSION = Postgres version)
WALG_AZ_PREFIX: "azure://container-name/$(SCOPE)/$(PGVERSION)" # Enables Azure Backups (SCOPE = Cluster name) (PGVERSION = Postgres version)
```
3. Setup your operator configuration values. With the `psql-backup-creds`