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-rw-r--r--doc/administration/gitaly/index.md6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/administration/gitaly/index.md b/doc/administration/gitaly/index.md
index 964758837e5..49c6902bc42 100644
--- a/doc/administration/gitaly/index.md
+++ b/doc/administration/gitaly/index.md
@@ -101,6 +101,12 @@ documentation on configuring Gitaly
authentication](https://gitlab.com/gitlab-org/gitaly/blob/master/doc/configuration/README.md#authentication)
.
+Gitaly must trigger some callbacks to GitLab via GitLab Shell. As a result,
+the GitLab Shell secret must be the same between the other GitLab servers and
+the Gitaly server. The easiest way to accomplish this is to copy `/etc/gitlab/gitlab-secrets.json`
+from an existing GitLab server to the Gitaly server. Without this shared secret,
+Git operations in GitLab will result in an API error.
+
> **NOTE:** In most or all cases the storage paths below end in `/repositories` which is
different than `path` in `git_data_dirs` of Omnibus installations. Check the
directory layout on your Gitaly server to be sure.