use podman in shell executor and control docker registry

.gitignore

@@ -3,3 +3,4 @@ build/
 **/.build
 **/build
 **__pycache__
+.vscode/

.gitlab-ci.yml

-# This file is a template, and might need editing before it works on your project.
-# To contribute improvements to CI/CD templates, please follow the Development guide at:
-# https://docs.gitlab.com/ee/development/cicd/templates.html
-# This specific template is located at:
-# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Docker.gitlab-ci.yml
-
-# Build a Docker image with CI/CD and push to the GitLab registry.
-# Docker-in-Docker documentation: https://docs.gitlab.com/ee/ci/docker/using_docker_build.html
-#
-# This template uses one generic job with conditional builds
-# for the default branch and all other (MR) branches.
-
-docker-build:
-  # Use the official docker image.
-  image: docker:cli
-  stage: build
-  services:
-    - docker:dind
 variables:
-    DOCKER_IMAGE_NAME: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
-  before_script:
-    - echo "$CI_REGISTRY_PASSWORD" | docker login $CI_REGISTRY -u $CI_REGISTRY_USER --password-stdin || echo failed
-  # All branches are tagged with $DOCKER_IMAGE_NAME (defaults to commit ref slug)
-  # Default branch is also tagged with `latest`
+  DOCKER_REGISTRY: docker.control.lth.se
+  CI_REGISTRY_IMAGE: $DOCKER_REGISTRY/$CI_PROJECT_NAMESPACE/$CI_PROJECT_NAME
+podman-build:
+  image: quay.io/podman/stable
+  # tags:
+  #   - docker
+  stage: build
   script:
-    - docker build --pull -t "$DOCKER_IMAGE_NAME" .
-    - docker push "$DOCKER_IMAGE_NAME"
+    - podman login -u "$DOCKER_REGISTRY_USER" -p "$DOCKER_REGISTRY_PASSWORD" "$DOCKER_REGISTRY"
+    - podman build -t "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG" .
+    - podman push "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG"
     - |
       if [[ "$CI_COMMIT_BRANCH" == "$CI_DEFAULT_BRANCH" ]]; then
-        docker tag "$DOCKER_IMAGE_NAME" "$CI_REGISTRY_IMAGE:latest"
-        docker push "$CI_REGISTRY_IMAGE:latest"
+        podman tag "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG" "$CI_REGISTRY_IMAGE:latest"
+        podman push "$CI_REGISTRY_IMAGE:latest"
       fi
-  # Run this job in a branch where a Dockerfile exists
-  rules:
-    - if: $CI_COMMIT_BRANCH
-      exists:
-        - Dockerfile