Ansible commands

 ansible all -m ping

ansible '*' -m ping

by default all hosts exists with in the host group. 

ansible all -i centos1, -m ping   // This command will also work . 

ansible all -m debug

ansible-doc debug  

ansible all -m debug --args='msg="This is a custom message"' 

ansible all -m -vvv debug --args='msg="This is a custom message" verbosity=3' 


ansible all -m ping -o   // displays the output in one line.

ansible  centos --list-hosts

copying the ssh key

ssh coopy-id centos1

root ssh key copied




ssh centos -l root // connecting as root

/etc/ssh/sshd_config

port can be changed here after changing the port from 22 to 2222 we did the below

semanage was not there we installed it newly

semanage port -a -t ssh_port_t -p tcp 2222

we also need to open the firewall in these ports

firewall-cmd --permanent --add-port=2222/tcp   // open firewall port for the same

firewall-cmd --reload

service sshd restart

ssh 0 -p 2222    //0 indicates 0.0.0.0  -- testing the port


The current connection expect the connection to on port 22 for centos1 and there for it fails except for others

lets see if we can connect from unbunt-c to centos1

telnet centos1 2222

and that says connected successfully

Now we got to ansible host file configuration and mention the new port for the system



You can also specify this way




Yaml format


Yaml to Json conversion tools are available which will help you convert the yaml file to json file.

Overight the existing varible on the command prompt



Modules













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