create new image, with only ubuntu, and python and git

.gitlab-ci.yml

@@ -57,3 +57,13 @@ build-install-annote-and-quicktree:
     - git checkout master -- requirements.txt
     - docker build --pull -t "$CI_REGISTRY_IMAGE/install-ubuntu-annote-quicktree" for_build/annote_and_1tree
     - docker push "$CI_REGISTRY_IMAGE/install-ubuntu-annote-quicktree"
+
+buid-ubuntu:
+  only:
+    - docker
+  stage: build
+  script:
+    - apk update ; apk add git
+    - git checkout master -- requirements.txt
+    - docker build --pull -t "$CI_REGISTRY_IMAGE/install-ubuntu" for_build/ubuntu
+    - docker push "$CI_REGISTRY_IMAGE/install-ubuntu"