Adhere to naming Conventions for galaxy

[bottkars]

Role name : use lowercase letters and hyphens to separate words: For example, web-server or database-backup.
Task file name: user lowercase letters and underscores to separate words. When statements such as include are used, it is convenient to have file names without hyphens. For example: install_web_ubuntu.yml
YAML file extension: yml instead yaml. To be consistent and succinct.
Task name: start with a verb: Use an action verb at the beginning of the task name to indicate what the role does. For example, Install Nginx or Configure firewall. Start with a capital letter. No need to end with a period for a few words of task description.
Variable name: lowercase letters and underscores to separate words. The variable must start with the role name. For example, if the role name is nginx, the variable name should be nginx_default_hostname.