Looking into documentation on moving to Cloud, and https://confluence.atlassian.com/adminjiraserver/synchronizing-data-from-external-directories-938847064.html
Do i understand correctly that for example we have currently local LDAP authentication to Jira, so after adding additional Jira Crowd user directory, it will sync LDAP users with Jira
access to cloud?
It says to :
Take a fresh backup of your server
Use Site Import to migrate.
Wont site import overwrite previously migrated user database ?
Thanks for the details on what you're doing and planning to do. From the links you sent I do see the issue, the documents you have are for Server/DC and not explicit to cloud.
On the link for Access recommendations I would suggest reviewing the following notes which will help to clarify you're ask:
Before you begin
Before you decide how to migrate your users, make sure you:
Read the section on Atlassian Access recommendations if you plan to use an external identity provider.
It's not currently possible to migrate a subset of users and groups using Confluence Cloud Migration Assistant or Jira site import. If you use these methods, you will need to import all users and groups. Read the information below for more details.
Since you'll be using LDAP, you'll want to set up Access which will manage/house your users. When you do the Site import (Yes, the users may get overwritten in Jira) you'll be able to map your imported Jira users with your Access users.
I hope this information proves helpful!
For JSM June Challenge #2, share how your non-technical teams like HR, legal, marketing, finance, and beyond started using Jira Service Management! Tell us: Did they ask to start using it or...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events