K8SPG-683 support ldap pgbouncer

[gkech]

CHANGE DESCRIPTION

Problem:

Enables LDAP-authenticated PostgreSQL users to connect via PgBouncer by configuring PgBouncer to use its native LDAP HBA support (introduced in PgBouncer 1.25.0).

For checking the version we are currently using, run the following command:

docker run --rm --platform linux/amd64 --entrypoint="" docker.io/perconalab/percona-postgresql-operator:main-pgbouncer17 pgbouncer --version

Added connection checks to ldap/03-verify-ldap-auth.yaml and ldap-tls/04-verify-ldaps-auth.yaml. They verify that a user with a valid LDAP password can connect through PgBouncer and that a wrong password is rejected.

Cause:
Short explanation of the root cause of the issue if applicable.

Solution:
Short explanation of the solution we are providing with this PR.

CHECKLIST

Jira

• Is the Jira ticket created and referenced properly?
• Does the Jira ticket have the proper statuses for documentation (Needs Doc) and QA (Needs QA)?
• Does the Jira ticket link to the proper milestone (Fix Version field)?

Tests

• Is an E2E test/test case added for the new feature/change?
• Are unit tests added where appropriate?

Config/Logging/Testability

• Are all needed new/changed options added to default YAML files?
• Are all needed new/changed options added to the Helm Chart?
• Did we add proper logging messages for operator actions?
• Did we ensure compatibility with the previous version or cluster upgrade process?
• Does the change support oldest and newest supported PG version?
• Does the change support oldest and newest supported Kubernetes version?

[mayankshah1607]

shall we add a unit test for this?

[egegunes]

@gkech ldap test has a problem

[gkech]

@gkech ldap test has a problem

[JNKPercona]

Test Name	Result	Time
backup-enable-disable	passed	00:11:23
builtin-extensions	passed	00:05:36
cert-manager-tls	passed	00:05:43
custom-envs	passed	00:19:30
custom-extensions	passed	00:14:08
custom-tls	passed	00:08:57
database-init-sql	passed	00:02:33
demand-backup	passed	00:24:38
demand-backup-offline-snapshot	passed	00:13:23
dynamic-configuration	passed	00:03:11
finalizers	passed	00:03:46
init-deploy	passed	00:03:41
huge-pages	passed	00:03:14
ldap	passed	00:03:46
ldap-tls	passed	00:04:47
monitoring	passed	00:07:29
monitoring-pmm3	passed	00:09:41
one-pod	passed	00:07:06
operator-self-healing	passed	00:10:17
pg-tde	passed	00:09:16
pitr	passed	00:12:05
scaling	passed	00:06:06
scheduled-backup	passed	00:28:05
self-healing	passed	00:08:58
sidecars	passed	00:02:45
standby-pgbackrest	passed	00:12:15
standby-streaming	passed	00:09:28
start-from-backup	passed	00:11:10
tablespaces	passed	00:06:37
telemetry-transfer	passed	00:04:39
upgrade-consistency	passed	00:06:41
upgrade-minor	passed	00:05:56
users	passed	00:04:34

Summary	Value
Tests Run	33/33
Job Duration	01:35:54
Total Test Time	04:51:39

commit: 39e4bf7
image: perconalab/percona-postgresql-operator:PR-1490-39e4bf70e