YDB Ansible playbooks v0.2

This is the second pre-release of YDB Ansible playbooks, with the following modifications:

• support configuration files backup on configuration updates;
• switched to Ansible 'become' instead of direct 'sudo' usage;
• more correct 9-node configuration file sample shipped;
• added extra checks to ensure that database creation actually worked;

Future releases will focus on re-usability aspects, and will deliver the playbooks in the form of Ansible Collection.

YDB Ansible playbooks - initial version

This is the initial release of Ansible playbooks for YDB cluster deployment and management.
Please report any issues and improvement ideas as Issues in the repository..