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+Gitlab to Github mirroring
+===
+
+This repo is used for testing mirroring of a gitlab repo to github using gitlab-ci.
+For gitlab ee, there already exists a mirroring service, so this is only useful for gitlab ce.
+
+# Prerequisites
+Setup gitlab-ci and create a shell runner.
+
+![Runner Configuration](https://git.sprinternet.at/h44z/atestproject/raw/master/runner.png "Runner Configuration")
+
+Next create or edit the file `/etc/ssh/ssh_known_hosts`:
+
+```
+touch /etc/ssh/ssh_known_hosts
+```
+
+Allow the runner to modify the file (not needed if you do not update the ssh keys automatically):
+```
+chown :gitlab-runner /etc/ssh/ssh_known_hosts
+chmod g+w /etc/ssh/ssh_known_hosts
+```
+
+You can prefill the known hosts file (you can also run this step in the gitlab runner):
+```
+ssh-keyscan -t rsa,dsa,ecdsa github.com > /etc/ssh/ssh_known_hosts
+```
+
+Then create a new ssh key-pair for the gitlab runner (do not use a key password!):
+```
+su gitlab-runner
+cd
+ssh-keygen -t rsa -b 4096
+cat .ssh/id_rsa.pub
+```
+
+Add the key to your github account.
+
+Now just edit the `.gitlab-ci.yml` file in your repo to fit your needs. Enjoy the gitlab to github mirroring :)