Attempt of image build by buildah

.gitlab-ci.yml

-image: docker:git
+stages:
+- build
 
-services:
-- docker:dind
+variables:
+  DEPENDENCIES_IMAGE_NAME: ${CI_REGISTRY_IMAGE}/image:latest
+  STORAGE_DRIVER: vfs # for buildah
+  REGISTRY_AUTH_FILE: /root/auth.json
 
-before_script:
-  - docker login -u gitlab-ci-token -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
-
-after_script:
-  - 'docker logout $CI_REGISTRY'
-
-build-image:
-  stage: build #and stage
+build_image:
+  stage: build
+  image: tomkukral/buildah
+  before_script:
+    - podman login --username "${CI_REGISTRY_USER}" --password "${CI_REGISTRY_PASSWORD}" "${CI_REGISTRY}"
   script:
-   - docker pull jupyter/tensorflow-notebook
-   - docker build -t gitlab-registry.in2p3.fr/jupyterhub-paris-saclay/image .
-   - docker push gitlab-registry.in2p3.fr/jupyterhub-paris-saclay/image
+    - buildah bud --format docker -t ${DEPENDENCIES_IMAGE_NAME} .
+    - buildah push --authfile ${REGISTRY_AUTH_FILE} ${DEPENDENCIES_IMAGE_NAME}
+  after_script:
+    - podman logout "${CI_REGISTRY}"
+  only:
+    changes:
+      - Dockerfile
+      - binder/*