Hi Atlassian, asking this question as previous answers are all from the community rather than definitive answer from Atlassian.
We currently run Jira 7.7.0 on premise, running on CentOS and having been installed directly on the VM, NGINX infront server with the DB on postgres 9.2
We are wanting to migrate to GCP, with a GCE Instance running Container Optimised OS so we'd be using containerised version of Jira, the DB being postgres 11.8 on Cloud SQL, whilst running Jira 8.12.2
I have tried to manually a copy of the jira data directory, and migrated the DB, but hitting problems with issues, dashboards, custom fields not working etc.
I wanted to get an affirmative answer - is this type of "manual copy data to migrate and upgrade" supported??