Scenario: How to install MariaDB on CentOS/RHEL 7
Steps:
1) Create MariaDB 10 repository$ sudo yum install wget
$ wget https://downloads.mariadb.com/MariaDB/mariadb_repo_setup
$ chmod +x mariadb_repo_setup
$ sudo ./mariadb_repo_setup
Scenario: Set up Ansible callback to monitor running task on remote machine.
Ansible system: CentOS 7, Ansible 2.6
Remote machines:
Both have same root password
1. CentOS 7, ip address: 192.168.99.18
2. CentOS 6, ip address: 192.168.99.19
I set up callback plugins to see running ansible-playbook task on remote machine and it is fun and useful.
To set up callback, edit /etc/ansible/ansible.cfg and change the value to minimal.
# vi /etc/ansible/ansible.cfg
stdout_callback = minimal