Set password for redis in CI

.gitlab-ci.yml

@@ -7,6 +7,7 @@ variables:
     DJANGO_SETTINGS_MODULE: "cof.settings.prod"
     DBHOST: "postgres"
     REDIS_HOST: "redis"
+    REDIS_PASSWD: "dummy"
 
     # Cached packages
     PYTHONPATH: "$CI_PROJECT_DIR/vendor/python"
@@ -33,6 +34,7 @@ before_script:
     # Remove the old test database if it has not been done yet
     - psql --username=$POSTGRES_USER --host=$DBHOST -c "DROP DATABASE IF EXISTS test_$POSTGRES_DB"
     - pip install --cache-dir vendor/pip -t vendor/python -r requirements.txt
+    - redis-cli config set requirepass $REDIS_PASSWD || true
 
 test:
     stage: test