Table of contents
Introduction to Ansible Ad-hoc Commands
Ad-hoc commands in Ansible are like one-liners that allow you to perform quick tasks without the need for a playbook. In this blog post, we'll unravel the simplicity and efficiency of Ansible Ad-hoc commands, exploring their execution, the vast array of modules available, and practicing basic commands for system management.
Executing Ad-hoc Commands
Ad-hoc commands follow a simple syntax:
ansible [targets] -m [module] -a "[module options]"
[targets]: Define the hosts or groups to target.
-m [module]: Specify the Ansible module to use.
-a "[module options]": Provide options for the module in double-quotes.
Example Ad-hoc Command
Let's ping all servers in the
ansible web_servers -m ping
This command uses the
ping module to check server responsiveness.
Exploring Ansible Modules
What are Modules?
Ansible modules are units of work. They can perform various tasks, from managing packages to manipulating files or even interacting with cloud providers.
command: Execute arbitrary commands on the target.
shell: Run shell commands on the target.
dnf, etc.): Manage packages on Linux systems.
copy: Copy files to remote hosts.
file: Manage files and directories.
Example: Installing a Package
nginx package on the
ansible web_servers -m apt -a "name=nginx state=present" -u your_username
your_username with your actual username.
Practice: Basic System Management
Task: Create a Directory
Create a directory named
ansible_test on all servers:
ansible all -m file -a "path=/home/your_username/ansible_test state=directory" -u your_username
Task: Check Disk Space
Check available disk space on all servers:
ansible all -m command -a "df -h" -u your_username
Task: Update Packages
Update all packages on the
ansible web_servers -m apt -a "upgrade=yes" -u your_username
Ansible Ad-hoc commands provide a quick and powerful way to perform tasks on your infrastructure. By exploring modules and practicing basic commands, you're laying the groundwork for more advanced automation with Ansible.
In the next blog post, we'll dive into the heart of Ansible automation: Playbooks. Get ready to take your automation game to the next level! 🚀🔧