Initial commit

.gitlab-ci.yml

+stages:
+  - Docker build
+
+docker:
+  stage: Docker build
+  tags: [docker]
+  interruptible: true
+  image:
+    name: gcr.io/kaniko-project/executor:debug-v1.3.0
+    entrypoint: [""]
+  script:
+    - mkdir -p /kaniko/.docker
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+    - |
+        /kaniko/executor \
+          --context ${CI_PROJECT_DIR} \
+          --dockerfile ${CI_PROJECT_DIR}/Dockerfile \
+          --destination ${CI_REGISTRY_IMAGE}:latest
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "master"'
+    - if: '$CI_PIPELINE_SOURCE == "web" && $CI_COMMIT_BRANCH == "master"'
+  interruptible: true

Dockerfile

+FROM python:3-alpine
+
+RUN apk update && \
+    apk add bash git shellcheck && \
+    git config --global credential.helper store && \
+    pip install -U flake8 pylint

README.md

+# Docker image for Python code analysis
+
+Contains:
+
+* Python 3
+* Flake8
+* Pylint
+* Git
+
+Based on `python:3-alpine`.