Merge "Specify 'become' to necessary tasks (general roles)"

ansible/group_vars/all.yml

ansible/post-deploy.yml

ansible/roles/certificates/tasks/generate.yml

ansible/roles/common/tasks/config.yml

ansible/roles/destroy/tasks/cleanup_host.yml

ansible/roles/haproxy/tasks/config.yml

ansible/roles/mariadb/tasks/config.yml

ansible/roles/memcached/tasks/config.yml

ansible/roles/prechecks/tasks/main.yml

ansible/roles/prechecks/tasks/user_checks.yml

ansible/roles/rabbitmq/tasks/config.yml

releasenotes/notes/specify-task-become-84f83707f612bcf3.yaml