Ad-Hoc Ansible Commands

Question 1

what id ad-hoc command

Answer 1

Are effectively one-liners

One can run ansible either ad-hoc or as a playbook

Question 2

Use cases for ad-hoc

Answer 2

1. Operational commands
   - -checking logs
   - -daemon control
   - -process management
2. Informational commands
   - -check installed software
   - -check system properties
3. Research
   - - work with unfamiliar modules on test systems

Question 3

ad-hoc vs playbook

Answer 3

1.
ad-hoc: command ansible
playbook: command ansible-playbook
2.
ad-hoc: effective for one-time command, operational activities
playbook: effective for deployment, routine tasks
3. ad-hoc similar to bash command
 playbook similar to bash script

Question 4

Common modules

Answer 4

Ping, no params
Setup- gather ansible facts, no params
Yum- params: name and state
Service- control daemons
params: name and state
User- manipulate system users
parans: name
Copy- copy files
params: src and dest
File- works with files
params: path
Git -interact with git repo
params: repo and dest

Question 5

Install/remove package on remote host

Answer 5

ansible -i inventory antony1 -b -m yum -a “name=htop state=latest”
ansible -i inventory antony1 -b -m yum -a “name=htop state=absent”

Question 6

Working with file module:
Create a file on remote host
Check if file exists
Update permissions of the file
Change the owner of file on remote host

Answer 6

ansible -i inventory antony1 -b -m file -a “path=/home/cloud_user/file1 state=touch”

ansible -i inventory antony1 -m file -a “path=/home/cloud_user/file1”

ansible -i inventory antony1 -b -m file -a “path=/home/cloud_user/file1 mode=0444”

ansible -i inventory antony1 -b -m file -a “path=/home/cloud_user/file1 owner=cloud_user”

ansible all -i inventory -b -m copy -a “src=/home/ansible/.ssh/id_rsa.pub dest=/home/supervisor/.ssh/authorized_keys/ owner=supervisor mode=0600”

Question 7

Working with user module:

create a user on remote host

Answer 7

ansible -i inventory antony1 -b -m user -a “name=avance”

ansible -i inventory antony1 -b -m user -a “name=avance append=yes group=wheel”

Question 8

Ensure auditd Is Enabled and Running on All Hosts

Answer 8

ansible all -b -m service -a “name=auditd state=started enabled=yes”