Update molecule configuration to work with 3.0.

.travis.yml

@@ -16,7 +16,7 @@ env:
 
 install:
   # Install test dependencies.
-  - pip install molecule docker
+  - pip install molecule yamllint ansible-lint docker
 
 before_script:
   # Use actual Ansible Galaxy role name for the project directory.

molecule/default/molecule.yml

@@ -4,9 +4,8 @@ dependency:
 driver:
   name: docker
 lint:
-  name: yamllint
+  yamllint .
-  options:
+  ansible-lint
-    config-file: molecule/default/yaml-lint.yml
 platforms:
   - name: instance
     image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos7}-ansible:latest"
@@ -17,13 +16,7 @@ platforms:
     pre_build_image: true
 provisioner:
   name: ansible
-  lint:
-    name: ansible-lint
   playbooks:
-    converge: ${MOLECULE_PLAYBOOK:-playbook.yml}
+    converge: ${MOLECULE_PLAYBOOK:-converge.yml}
 scenario:
   name: default
-verifier:
-  name: testinfra
-  lint:
-    name: flake8

molecule/default/playbook.yml

@@ -1,27 +0,0 @@
----
-- name: Converge
-  hosts: all
-  become: true
-
-  vars:
-    certbot_auto_renew_user: root
-
-  pre_tasks:
-    - name: Update apt cache.
-      apt: update_cache=yes cache_valid_time=600
-      when: ansible_os_family == 'Debian'
-      changed_when: false
-
-    - name: Install dependencies (RedHat).
-      yum: name={{ item }} state=present
-      when: ansible_os_family == 'RedHat'
-      with_items:
-        - cronie
-        - epel-release
-
-    - name: Install cron (Debian).
-      apt: name=cron state=present
-      when: ansible_os_family == 'Debian'
-
-  roles:
-    - geerlingguy.certbot

molecule/default/yaml-lint.yml

@@ -1,6 +0,0 @@
----
-extends: default
-rules:
-  line-length:
-    max: 120
-    level: warning