K8SPXC-1879 Automatically use k8s min version in PR job

[jvpasinatto]

CHANGE DESCRIPTION

Problem:
PR job fail when min k8s version is dropped.

Solution:
Get the min supported k8s version from GKE stable channel automatically.

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	00:00:00
allocator-8-0	passed	00:00:00
allocator-8-4	passed	00:00:00
backup-storage-tls-8-0	passed	00:00:00
cross-site-8-0	passed	00:00:00
cross-site-proxysql-8-0	passed	00:00:00
cross-site-proxysql-8-4	passed	00:00:00
custom-users-8-0	passed	00:00:00
demand-backup-cloud-aws-8-0	passed	00:00:00
demand-backup-cloud-aws-8-4	passed	00:31:16
demand-backup-cloud-azure-8-0	passed	00:00:00
demand-backup-cloud-gcs-8-0	passed	00:00:00
demand-backup-cloud-pxb-aws-8-0	passed	00:00:00
demand-backup-cloud-pxb-azure-8-0	passed	00:00:00
demand-backup-cloud-pxb-gcs-8-0	passed	00:00:00
demand-backup-encrypted-with-tls-5-7	passed	00:00:00
demand-backup-encrypted-with-tls-8-0	passed	00:00:00
demand-backup-encrypted-with-tls-8-4	passed	00:37:52
demand-backup-encrypted-with-tls-s3-5-7	passed	00:00:00
demand-backup-encrypted-with-tls-s3-8-0	passed	00:00:00
demand-backup-encrypted-with-tls-s3-8-4	passed	00:00:00
demand-backup-encrypted-with-tls-pxb-5-7	passed	00:00:00
demand-backup-encrypted-with-tls-pxb-8-0	passed	00:00:00
demand-backup-encrypted-with-tls-pxb-8-4	passed	00:00:00
demand-backup-8-0	passed	00:00:00
demand-backup-minio-8-0	passed	00:00:00
demand-backup-flow-control-8-0	passed	00:00:00
demand-backup-flow-control-8-4	passed	00:00:00
demand-backup-parallel-8-0	passed	00:00:00
demand-backup-parallel-8-4	passed	00:00:00
demand-backup-without-passwords-8-0	passed	00:00:00
demand-backup-without-passwords-8-4	passed	00:00:00
extra-pvc-8-0	passed	00:00:00
haproxy-5-7	passed	00:00:00
haproxy-8-0	passed	00:00:00
haproxy-8-4	passed	00:00:00
init-deploy-5-7	passed	00:00:00
init-deploy-8-0	passed	00:00:00
limits-8-0	passed	00:00:00
monitoring-2-0-8-0	passed	00:00:00
monitoring-pmm3-8-0	passed	00:00:00
monitoring-pmm3-8-4	passed	00:00:00
one-pod-5-7	passed	00:00:00
one-pod-8-0	passed	00:00:00
pitr-8-0	passed	00:00:00
pitr-8-4	passed	00:00:00
pitr-pxb-8-0	passed	00:00:00
pitr-pxb-8-4	passed	00:00:00
pitr-gap-errors-8-0	passed	00:00:00
pitr-gap-errors-8-4	passed	00:00:00
proxy-protocol-8-0	passed	00:00:00
proxy-switch-8-0	passed	00:00:00
proxysql-sidecar-res-limits-8-0	passed	00:00:00
proxysql-scheduler-8-0	passed	00:00:00
pvc-resize-5-7	passed	00:00:00
pvc-resize-8-0	passed	00:00:00
pvc-auto-resize-5-7	passed	00:00:00
pvc-auto-resize-8-0	passed	00:00:00
recreate-8-0	passed	00:00:00
restore-to-encrypted-cluster-8-0	passed	00:00:00
restore-to-encrypted-cluster-8-4	passed	00:00:00
restore-to-encrypted-cluster-s3-8-0	passed	00:00:00
restore-to-encrypted-cluster-s3-8-4	passed	00:00:00
restore-to-encrypted-cluster-pxb-8-0	passed	00:00:00
restore-to-encrypted-cluster-pxb-8-4	passed	00:00:00
scaling-proxysql-8-0	passed	00:00:00
scaling-8-0	passed	00:00:00
scheduled-backup-5-7	passed	00:00:00
scheduled-backup-8-0	passed	00:00:00
scheduled-backup-8-4	passed	00:00:00
scheduled-backup-aws-8-0	passed	00:00:00
scheduled-backup-aws-8-4	passed	00:00:00
scheduled-backup-azure-8-0	passed	00:00:00
scheduled-backup-azure-8-4	passed	00:00:00
scheduled-backup-gcs-8-0	passed	00:00:00
scheduled-backup-gcs-8-4	passed	00:00:00
security-context-8-0	passed	00:00:00
smart-update1-8-0	passed	00:00:00
smart-update1-8-4	passed	00:00:00
smart-update2-8-0	passed	00:00:00
smart-update2-8-4	passed	00:00:00
smart-update3-8-0	passed	00:00:00
sst-retry-limit-8-0	passed	00:18:59
sst-retry-limit-8-4	passed	00:18:57
storage-8-0	passed	00:00:00
tls-issue-cert-manager-ref-8-0	passed	00:00:00
tls-issue-cert-manager-8-0	passed	00:00:00
tls-issue-self-8-0	passed	00:00:00
unsafe-flag-backup-if-unhealthy-8-0	passed	00:00:00
unsafe-flag-proxy-size-8-0	passed	00:00:00
unsafe-flag-pxc-size-8-0	passed	00:00:00
unsafe-flag-tls-8-0	passed	00:00:00
upgrade-consistency-8-0	passed	00:00:00
upgrade-consistency-8-4	passed	00:00:00
upgrade-haproxy-5-7	passed	00:28:49
upgrade-haproxy-8-0	passed	00:30:35
upgrade-proxysql-5-7	passed	00:18:55
upgrade-proxysql-8-0	passed	00:19:37
users-5-7	passed	00:36:22
users-8-0	passed	00:36:26
users-scheduler-8-4	passed	00:30:06
validation-hook-8-0	passed	00:00:00

Summary	Value
Tests Run	102/102
Job Duration	01:15:28
Total Test Time	05:07:59

commit: b846836
image: perconalab/percona-xtradb-cluster-operator:PR-2544-b846836a

[egegunes]

please always add PR descriptions