hostpathstorage

[yangvipguang]

Describe the bug
A clear and concise description of what the bug is.
I use the default operator yaml file. And the storage type is hostpathstorage

But After creating pg cluster with pgo client . I ocurrs some issues with storage .

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Please tell us about your environment:

Operating System: K8S
Where is this running ( Local, Cloud Provider) Alicloud
Storage being used (NFS, Hostpath, Gluster, etc): hostpath
Container Image Tag: 4.4.1
PostgreSQL Version: 12.4
Platform (Docker, Kubernetes, OpenShift): K8S
Platform Version: 1.16

Additional context
Add any other context about the problem here.

[jkatz]

This doesn't show all the values for the storage1 class so I can't give a definitive answer. From the information provided, it could be one of a few things:

1. No persistent volumes for hostpath storage have been created.
2. There may be a provisioning mechanism for hostpath in your environment, but you would need to specify the appropriate storage class.

[yangvipguang]

@jkatz Ok. Thanks。
I still have a few questions to ask：
1、I have configured S3 for backup, but what do the following backup and backrest storage are used to storage .


2、backup and backrest are used for backup, what is the difference between them。
3、I have a suggestion I hope you can combine your experience to come up with a best practice。
4、If I want to add other extensions, how can I add them more conveniently。

[jkatz]

• backup_storage is used to specify the storage of the logical (pg_dump) backups. It was also used for pg_basebackup backups, but those have been removed in favor of pgBackRest.
• backrest_storage is used to specify the storage for the pgBackRest repository. This setting is not applicable to using S3 or an S3 interface.

[yangvipguang]

@jkatz ok thanks one more question. if i want to change pgo config in the pgo client container。 I just see how to show configs。

[jkatz]

The client container accepts environmental variables as the ones described here:

https://access.crunchydata.com/documentation/postgres-operator/4.4.1/pgo-client/#command-overview

An explanation for how it works is here:

https://access.crunchydata.com/documentation/postgres-operator/4.4.1/installation/pgo-client/#pgo-client-container

[weiya1990]

@jkatz I have changed the operator yaml by changing pg-primary-data of storage5_name to pg-primary-data-1。

then,
1、I restart the operator deployment
2、 delete the deploy job and reapply the operator yaml , and the job rerun again .
all of above step is done.But all failed with config of fetching new storage config of storage5_name: "pg-primary-data-1"