2021-09-02 gitlab server migration

Planned migration time: 2021-09-02 between 18h and 20h CEST

What changed in the background

• In our effort to continue improving the security of our platform services we will migrate gitlab.dropsolid.com and git.dropsolid.com to new infrastructure.

What do I need to look out for?

Host key verification

Because git.dropsolid.com will no longer be pointing to the same infrastructure, it is possible you will receive the following warning when trying to pull, push or clone repositories after the migration:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:jWBQM6KfN1ylinku+8d1SYQnvjOqm9sKyJTMpF3HYcw.
Please contact your system administrator.
Add correct host key in /home/user/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/user/.ssh/known_hosts:47
ECDSA host key for git.dropsolid.com has changed and you have requested strict checking.
Host key verification failed.

The solution for this would be to delete the old key and re-add the new one in your known_hosts file.
A way of doing this is by executing the following commands:

ssh-keygen -R git.dropsolid.com
ssh-keyscan -H git.dropsolid.com >> ~/.ssh/known_hosts