New base image for other Q&A tools

.gitlab-ci.yml

+build:
+  stage: build
+  tags:
+    - docker
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  script:
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+    - /kaniko/executor --cache=true --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE:latest
+  only:
+    - master
+
+build_test:
+  stage: build
+  tags:
+    - docker
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  script:
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+    - /kaniko/executor --cache=true --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
+  except:
+    - master
+

Dockerfile

+FROM python:3.7-slim-buster
+
+RUN    addgroup --system qa-tools \
+    && adduser qa-tools --system --gecos "" --disabled-password --shell /bin/false --ingroup qa-tools \
+    && mkdir /project \
+    && chown qa-tools:qa-tools /project
+
+WORKDIR /project
+
+ONBUILD COPY requirements.txt requirements.txt
+
+ONBUILD RUN pip install \
+    --quiet \
+    --no-cache-dir \
+    --disable-pip-version-check \
+    --compile \
+    --requirement requirements.txt
+
+ONBUILD RUN rm requirements.txt
+
+ONBUILD USER qa-tools
+