gitlab-ci: enforce pep8 style

.gitlab-ci.yml

@@ -73,6 +73,12 @@ lint:
     - pylint3 tests/staging_test_acme_account_deactivate.py
     - pylint3 tests/staging_test_acme_account_rollover.py
 
+pep8:
+  extends: .check
+  script:
+    - pycodestyle --max-line-length=100 --ignore=E401,W503 --exclude=tests .
+    - pycodestyle --max-line-length=100 --ignore=E722 tests
+
 jessie-ut:
   extends: .unit_test
   image: acme-dns-tiny:jessie-slim

docker/buster/Dockerfile

@@ -7,7 +7,7 @@ RUN apt-get update \
     python3-minimal python3-dnspython python3-requests \
     pylint3 \
     # install recommends for coverage, to include jquery
-    && apt-get install -y python3-coverage \
+    && apt-get install -y python3-coverage pycodestyle \
     && apt-get clean
 
 COPY . .