Ansible Maintenance Automation Tools

Ansible Maintenance Automation Tools

software Package Installation RPM-IVH Http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpmyum Install Ansible-y

Configure the Keyless key on the master server to generate Ssh-key and distribute to all clients ssh-keygen-t RSA "All-in-a-  return" ssh-copy-id-i ~/.ssh/id_rsa.pub "Client IP Address"

after the configuration installation is complete, configure the configuration item ——. ansible.cfg first. When Ansible executes, it looks for configuration items in the following order:

* ANSIBLE_CONFIG (environment variable)

* ANSIBLE.CFG (under current directory)

*. ansible.cfg (under User's home directory)

*/etc/ansible/ansible.cfg

The hosts configuration is loaded from this configuration by default ansible, so you can specify the default Hosts file address by modifying the. Ansible.cfg:

[Defaults]hostfile=/users/the5fire/hosts


There are several parameters that need to be recorded:
-u username # specify  ssh

--sudo [-K] # If root permission is required, the-K parameter is used to enter the root password

Define the Hosts file:

The ansible hosts default in the/etc/ansible/directory, which prompts ansible to support the domain name and IP two client naming formats, where a "slave" group is defined vim/etc/ansbile/hosts [slave]

192.168.17.18
192.168.17.19

vim/etc/ansible/hosts  [webhosts]  172.16.  10.22 ansible_ssh_user=root ansible_ssh_pass=172.16. 10.33 ansible_ssh_user=root ansible_ssh_pass=guoting explanation  Ansible_ssh_user=root is SSH login user  ansible_ssh_pass=guoting is SSH login password 3, test each module  
Note the usage of each module can be used ansible-doc MOD to see the     most common uses  for example ansible-doc copy ansible commands '  Mod_arv' supported modules can be viewed using ansible-doc-l

The above ad hoc refers to the execution of a temporary not need to save the command, then how to execute the complex command? So there is the Playbook command: ansible-playbook .

Playbook (script) is the need to define a script or a configuration file and then define what to do.

Example: Output the current user name to the Whoami.rst file:

Cat/etc/ansible/playbook.yml

----Hosts:slave # The group defined in the Hosts file Remote_user:root # If you are the same as the current user, you do not need to specify tasks: # Tasks are keywords that indicate which tasks to perform-Name:whoami # Name is the name of the task shell:'whoami > Whoami.rst'# The Shell is the module that is specified for use, and the single quotation mark is the command. -hosts:slave remote_user:root tasks:-Name:whoami copy:src=~/hosts dest=~/hosts.dest # Local copy to remote notify: # If the ~/hosts.dest file sends a change after copy is executed, execute - Clear Copy handlers:-Name: clear Copy # calls the handler shell:'MV ~/hosts.dest Hosts.del'# rename

Or

Cat Playbook.yml

- hosts:slave  remote_user:root  tasks:      - name:whoami        copy:src=~/hosts dest=~/ hosts.dest       - name:clear copy        'mv ~/hosts.dest hosts.del'

Ansible Maintenance Automation Tools