test: add check yamllint

.travis.yml

@@ -12,6 +12,7 @@ services:
 before_install:
   - bundle install
   - sudo pip install --upgrade pip
+  - sudo pip install yamllint
   - sudo pip install ansible-lint
   - git clone https://github.com/ansible/galaxy-lint-rules.git
 
@@ -20,6 +21,7 @@ script:
   - kitchen conv certbot-debian-9 | grep changed=0
   - kitchen verify certbot-debian-9
   - ansible-lint -r galaxy-lint-rules/rules .
+  - yamllint .
 
 notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/

.yamllint

@@ -0,0 +1,10 @@
+extends: default
+
+ignore: |
+  .kitchen/*
+  vendor/
+
+rules:
+  line-length:
+    max: 120
+    level: warning

CHANGELOG.md

@@ -4,6 +4,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
+- test: add check yamllint
 
 ## [2.1.1] 2018-11-26
 - fix: replace shell module to command