K8SPXC-1796: fix container options

[pooknull]

https://perconadev.atlassian.net/browse/K8SPXC-1796

DESCRIPTION

Problem:
Container options are not applied to the xtrabackup sidecar.

Cause:
The PR that added the xtrabackup sidecar (#2274) did not implement support for container options. The sidecar attempted to parse the CONTAINER_OPTIONS env var, but it was never set.

Solution:
Set env vars based on the container options. Use XB_EXTRA_ARGS, XBCLOUD_EXTRA_ARGS, and XBSTREAM_EXTRA_ARGS to pass options to the corresponding binaries.

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?
• Are OpenShift compare files changed for E2E tests (compare/*-oc.yml)?

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 PXC version?
• Does the change support oldest and newest supported Kubernetes version?

[JNKPercona]

Test Name	Result	Time
auto-tuning-8-0	passed	00:20:57
allocator-8-0	passed	00:14:14
allocator-8-4	passed	00:14:31
backup-storage-tls-8-0	passed	00:22:36
cross-site-8-0	passed	00:37:05
custom-users-8-0	passed	00:12:29
demand-backup-cloud-8-0	passed	01:00:57
demand-backup-cloud-8-4	passed	01:02:25
demand-backup-cloud-pxb-8-0	passed	00:58:28
demand-backup-encrypted-with-tls-5-7	passed	00:49:06
demand-backup-encrypted-with-tls-8-0	passed	00:48:11
demand-backup-encrypted-with-tls-8-4	passed	00:48:02
demand-backup-encrypted-with-tls-pxb-5-7	passed	00:19:00
demand-backup-encrypted-with-tls-pxb-8-0	passed	00:18:12
demand-backup-encrypted-with-tls-pxb-8-4	passed	00:18:58
demand-backup-8-0	passed	00:44:45
demand-backup-flow-control-8-0	passed	00:11:10
demand-backup-flow-control-8-4	passed	00:11:17
demand-backup-parallel-8-0	passed	00:09:33
demand-backup-parallel-8-4	passed	00:10:13
demand-backup-without-passwords-8-0	passed	00:15:15
demand-backup-without-passwords-8-4	passed	00:17:24
extra-pvc-8-0	passed	00:25:19
haproxy-5-7	passed	00:14:56
haproxy-8-0	passed	00:14:31
haproxy-8-4	passed	00:14:53
init-deploy-5-7	passed	00:16:17
init-deploy-8-0	passed	00:17:46
limits-8-0	passed	00:12:31
monitoring-2-0-8-0	passed	00:24:13
monitoring-pmm3-8-0	passed	00:18:32
monitoring-pmm3-8-4	passed	00:19:10
one-pod-5-7	passed	00:13:45
one-pod-8-0	passed	00:13:40
pitr-8-0	passed	00:47:55
pitr-8-4	passed	00:48:22
pitr-pxb-8-0	passed	00:47:28
pitr-pxb-8-4	passed	00:47:03
pitr-gap-errors-8-0	passed	00:48:51
pitr-gap-errors-8-4	passed	00:49:20
proxy-protocol-8-0	passed	00:09:27
proxy-switch-8-0	passed	00:14:11
proxysql-sidecar-res-limits-8-0	passed	00:08:37
proxysql-scheduler-8-0	passed	00:27:43
pvc-resize-5-7	passed	00:16:37
pvc-resize-8-0	passed	00:16:42
recreate-8-0	passed	00:18:34
restore-to-encrypted-cluster-8-0	passed	00:27:27
restore-to-encrypted-cluster-8-4	passed	00:28:13
restore-to-encrypted-cluster-pxb-8-0	passed	00:16:55
restore-to-encrypted-cluster-pxb-8-4	passed	00:17:09
scaling-proxysql-8-0	passed	00:08:55
scaling-8-0	passed	00:11:24
scheduled-backup-5-7	passed	01:04:33
scheduled-backup-8-0	passed	01:05:17
scheduled-backup-8-4	passed	01:06:44
security-context-8-0	passed	00:27:16
smart-update1-8-0	passed	00:34:44
smart-update1-8-4	passed	00:34:14
smart-update2-8-0	passed	00:39:34
smart-update2-8-4	passed	00:39:47
smart-update3-8-0	passed	00:18:12
storage-8-0	passed	00:10:30
tls-issue-cert-manager-ref-8-0	passed	00:09:48
tls-issue-cert-manager-8-0	passed	00:10:13
tls-issue-self-8-0	passed	00:14:30
upgrade-consistency-8-0	passed	00:12:49
upgrade-consistency-8-4	passed	00:12:32
upgrade-haproxy-5-7	passed	00:26:15
upgrade-haproxy-8-0	passed	00:26:47
upgrade-proxysql-5-7	passed	00:16:07
upgrade-proxysql-8-0	passed	00:15:53
users-5-7	passed	00:33:46
users-8-0	failure	00:00:57
users-scheduler-8-4	failure	00:00:55
validation-hook-8-0	passed	00:01:39

Summary	Value
Tests Run	76/76
Job Duration	04:13:57
Total Test Time	32:04:55

commit: 53e742e
image: perconalab/percona-xtradb-cluster-operator:PR-2396-53e742e6