References:

ITER git repository: https://git.iter.org/projects/IMEX/repos/gittest/browse
ACH gitlab repository: https://gitlab.eufus.psnc.pl/ach/gittest

Step by step instructions:

1. Create or select origin repository, in this case it was ITER git repository

2. Clone origin repository with --mirror flag:

   Code Block
   git clone --mirror ssh://git@git.iter.org/imex/gittest.git

   
   

3. Change directory to newly cloned mirror repository:

   Code Block
   cd gittest.git

   
   

4. Push mirrored repository to new origin with --mirror  flag:

   Code Block
   git push --mirror git@gitlab.eufus.psnc.pl:ach/gittest.git

   
   

   Info
   title Warning!
   Don’t use git push --mirror in repositories that weren’t cloned by --mirror as well. It’ll overwrite the remote repository with your local references (and your local branches).

   
   

5. Clone newly pushed repository and change directory to it:

   Code Block
   cd ..git clone git@gitlab.eufus.psnc.pl:ach/gittest.gitcd gittest

   
   

6. Check current remote repository:

   Code Block
   git remote -v

   It shall print:

   Info
   icon false
   origin    git@gitlab.eufus.psnc.pl:ach/gittest.git (fetch) origin    git@gitlab.eufus.psnc.pl:ach/gittest.git (push)

   
   

7. Rename current default remote repository label to more relevant name:

   Code Block
   git remote rename origin gitlab

   And check the result:

   Code Block
   git remote -v

   It shall print:

   Info
   icon false
   gitlab    git@gitlab.eufus.psnc.pl:ach/gittest.git (fetch) gitlab    git@gitlab.eufus.psnc.pl:ach/gittest.git (push)

   
   

8. Add second remote (ITER, original one):

   Code Block
   git remote add iter ssh://git@git.iter.org/imex/gittest.git

   And check results:

   Code Block
   git remote -v

   It shall print:

   
   `git clone

   Info
   icon false
   gitlab    git@gitlab.eufus.psnc.pl:ach/gittest.git (fetch) gitlab    git@gitlab.eufus.psnc.pl:ach/gittest.git (push) iter    ssh://git@git.iter.org/imex/gittest.git (fetch) iter

   ssh://git@git.iter.org/imex/gittest.

   git`

   git (push)

   
   

9. To push or pull to different remote:
   1. PUSH:
      

      1. Gitlab:

         Code Block
         git push gitlab <optionally-branch-name}

         
         

      2. ITER:

         Code Block
         git push iter <optionally-branch-name>

         
         

         Info
         title Note
         First push to newly added remote should be executed with {--set-upstream} flag, e.g.: Code Block git push --set-upstream iter master

         
         

   2. PULL:
      

      1. Gitlab:

         Code Block
         git pull gitlab <optionally-branch-name>

         
         

      2. ITER:

         Code Block
         git pull iter <optionally-branch-name>