v1.6.22.3-v4-migration

PR #1696 Openshift v4 migration

The following PRs have been deployed with v1.6.22.3

PR #1658 Fix file and folder permissions on nginx-runtime

PR #1672 Update patroni replicas in Nagios

PR #1673 add inline documentation

PR #1674 update logoff url to logon7 ad logontest7

PR #1675 Test migration to v4

PR #1676 Add version summary

PR #1681 v1.6.22 update backend url

PR #1682 Update backend template and keycloak configmap

PR #1683 Add patroni health check

PR #1685 V1.6.22 add fallback filename