Can pass env variables in GitLab settings to an env file

.gitlab-ci.yml

 image: python:3.6
 
 before_script:
-  - mv .env.example .env
+  - chmod +x ./setup_ci_env.sh
+  - ./setup_ci_env.sh
   - git submodule sync --recursive
   - git submodule update --init --recursive
 
 flake8:
   script:
-    - pip install flake8
+    - pip3 install flake8
     - flake8
 
 build-local:

setup_ci_env.sh

+#!/bin/bash
+# This variables are interpreted automatically by the Docker Engine
+# And by the Django runtime
+# Django configuration
+echo DJANGO_SECRET=${DJANGO_SECRET} >> .env
+echo DJANGO_SETTINGS_MODULE=${DJANGO_SETTINGS_MODULE} >> .env
+# If using other database than sqlite3 (only use sqlite for development!)
+# Provide the db credentials here
+echo DATABASE_PASSWORD=${DATABASE_PASSWORD} >> .env
+echo DATABASE_USER=${DATABASE_USER} >> .env
+echo DATABASE_NAME=${DATABASE_NAME} >> .env
+echo DATABASE_HOST=${DATABASE_HOST} >> .env
+# For channels communication and periodic tasks we need a redis server
+echo REDIS_HOST=${REDIS_HOST} >> .env
+# OpenStack credentials
+# In development we recommend using a DevStack installation
+# These settings displayed in an admin dashboard or
+# Can be downloaded from Horizon, as an admin user
+echo OS_AUTH_URL=${OS_AUTH_URL} >> .env
+echo OS_PROJECT_ID=${OS_PROJECT_ID} >> .env
+echo OS_PROJECT_NAME=${OS_PROJECT_NAME} >> .env
+echo OS_USER_DOMAIN_NAME=${OS_USER_DOMAIN_NAME} >> .env
+echo OS_USER_DOMAIN_ID=${OS_USER_DOMAIN_ID} >> .env
+echo OS_PROJECT_DOMAIN_ID=${OS_PROJECT_DOMAIN_ID} >> .env
+echo OS_USERNAME=${OS_USERNAME} >> .env
+echo OS_PASSWORD=${OS_PASSWORD} >> .env
+echo OS_REGION_NAME=${OS_REGION_NAME} >> .env
+echo OS_INTERFACE=${OS_INTERFACE} >> .env
+echo OS_IDENTITY_API_VERSION=${OS_IDENTITY_API_VERSION} >> .env
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