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Resize volume by changing pvc size if enabled in config. (#958)

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* Try to resize pvc if resizing pv has failed

* added config option to switch between storage resize strategies

* changes according to requests

* Update pkg/controller/operator_config.go

Co-authored-by: Felix Kunde <felix-kunde@gmx.de>

* enable_storage_resize documented

added examples to the default configuration and helm value files

* enable_storage_resize renamed to volume_resize_mode, off by default

* volume_resize_mode renamed to storage_resize_mode

* Update pkg/apis/acid.zalan.do/v1/crds.go

* pkg/cluster/volumes.go updated

* Update docs/reference/operator_parameters.md

* Update manifests/postgresql-operator-default-configuration.yaml

* Update pkg/controller/operator_config.go

* Update pkg/util/config/config.go

* Update charts/postgres-operator/values-crd.yaml

* Update charts/postgres-operator/values.yaml

* Update docs/reference/operator_parameters.md

* added logging if no changes required

Co-authored-by: Felix Kunde <felix-kunde@gmx.de>
This commit is contained in:
Igor Yanchenko
2020-07-03 10:53:37 +02:00
committed by GitHub
co-authored by Felix Kunde
parent 6869c2cf1b
commit 88735a798a
12 changed files with 125 additions and 11 deletions
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docs/reference/operator_parameters.md
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@@ -333,6 +333,12 @@ configuration they are grouped under the `kubernetes` key.
of stateful sets of PG clusters. The default is `ordered_ready`, the second
possible value is `parallel`.
* **storage_resize_mode**
defines how operator handels the difference between requested volume size and
actual size. Available options are: ebs - tries to resize EBS volume, pvc -
changes PVC definition, off - disables resize of the volumes. Default is "ebs".
When using OpenShift please use one of the other available options.
## Kubernetes resource requests
This group allows you to configure resource requests for the Postgres pods.