Change CI runner to docker

.gitlab-ci.yml

@@ -3,8 +3,9 @@ stages:
 
 RebaseCheck:
   stage: checkRepository
+  image: alpine
   tags:
-    - CbmRoot
+    - docker
   only:
     refs:
       - merge_requests
@@ -15,6 +16,7 @@ RebaseCheck:
     # comparison
     # Check if a rebase is needed
     # If a rebase is needed stop immediately
+    - apk update && apk add git bash
     - scripts/connect_upstream_repo.sh $CI_MERGE_REQUEST_PROJECT_URL
     - git fetch upstream
     - hash1=$(git show-ref upstream/master | cut -f1 -d' ')
@@ -32,8 +34,9 @@ RebaseCheck:
 
 LinearHistCheck:
   stage: checkRepository
+  image: alpine
   tags:
-    - CbmRoot
+    - docker
   only:
     refs:
       - merge_requests
@@ -44,6 +47,7 @@ LinearHistCheck:
     # comparison
     # Check if the history introduced by the MR is linear (no branch loop in fork)
     # If not linear stop immediately
+    - apk update && apk add git bash
     - scripts/connect_upstream_repo.sh $CI_MERGE_REQUEST_PROJECT_URL
     - git fetch upstream
     - count=$(git rev-list --min-parents=2 --count upstream/master..HEAD)