Update .gitlab-ci.yml file

.gitlab-ci.yml

-check-docker-versions:
-  image: docker:24
-  services:
-    - docker:24-dind
-  variables:
-    DOCKER_HOST: "tcp://docker:2375/"
-    DOCKER_TLS_CERTDIR: ""
+stages:
+  -lint
+  # -test
+  # -build
+  # - deploy
+
+variables:
+  PYTHONPATH: "${CI_PROJECT_DIR}"
+  DOCKER_DRIVER: overlay2
+  DOCKER_REGISTRY: "docker.io"
+
+
+before_script:
+  -echo "Running pipeline for commit : ${CI_COMMIT_SHA}"
+
+lint:
+  stage: lint
+  image: python:3.10
+  before_script :
+    - pip install --upgrade pip
+    -pip install flake8
   script:
-    - docker --version
-    - docker-compose --version || echo "docker-compose not installed"
+    - echo "Linting Python code.."
+    - flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+    - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - echo "Done running the Python Lint stage"
\ No newline at end of file