Push mirrors stopped working with v16.9.1
Summary
We updated to v19.6.1 and after that, the push mirroring of repositories stopped working and the system sent emails with error message The remote mirror URL is invalid.
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In the settings of the project there is an error notification (mouse over shows: The remote mirror URL is invalid.
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The attempt to re-configure an push mirror to a repo within the same Gitlab instance results with error: Remote mirrors url is blocked: Requests to loopback addresses are not allowed
Steps to reproduce
Try to specify push mirror like in this screenshot, even to existing and new repositories:
Edited by Knut Wenzig