how to move jira+bitbucket from on-prem to cloud keeping the connections between them

[Dani Kaplan]

I have bitbucket and jira hosted on the same server - with links between them (tickets has branch attached and pull requests ect)

how can I import jira + bitbucket to the cloud keeping all the current connections between them ? 

[Dave Theodore [Coyote Creek Consulting]]

You will need to connect Jira Cloud to Bitbucket Cloud as a first step. Jira will monitor the change sets and scrape commit messages looking for a valid issue number.  When it finds one, it links the Issue with the commit.

When you perform your migration, as long as the issue numbers don't change in Jira, the magic should just happen when you migrate your repos in to Bitbucket.  I would recommend performing the Jira migration first, though.  If you are migrating in to a Jira instance that already has Projects keys that duplicate those that you intend to migrate, you have a problem.  Project keys must be unique so that means you will need to change one of the duplicates so that both are unique.  This will break your Bitbucket links, since the Issue number will no longer match. I hope that helps.