What are Ad-hoc commands?

Ad-hoc commands are quick, one-time commands that you run directly through the Ansible command line without needing to write a playbook. They are perfect for simple tasks and testing.

Running an Ad-hoc command

Here’s an example of running an Ad-hoc command to check the uptime of your servers:

bashCopy codeansible all -m command -a "uptime"

Explanation with Emojis

1. Choosing Hosts 🖥️

   • all: Select all hosts in your inventory.

   • Example: ansible all

   • Emoji: 🌐

2. Selecting a Module 📦

   • -m command: Use the command module.

   • Example: -m command

   • Emoji: ⚙️

3. Providing Arguments 📝

   • -a "uptime": Pass the argument to the module.

   • Example: -a "uptime"

   • Emoji: 🕒

4. Putting it all together 🧩

   • Command: ansible all -m command -a "uptime"

   • Emoji Sequence: 🌐⚙️🕒

More Examples

Ping all hosts to check connectivity

bashCopy codeansible all -m ping

• Explanation: Ping (check) all hosts to see if they are reachable.

• Emoji: 🌐🏓

Install a package

bashCopy codeansible all -m yum -a "name=httpd state=present"

• Explanation: Install httpd package on all hosts.

• Emoji: 🌐📦➡️🖥️

Copy a file

bashCopy codeansible all -m copy -a "src=/home/user/file.txt dest=/tmp/file.txt"

• Explanation: Copy file.txt from source to destination on all hosts.

• Emoji: 🌐📄➡️📁

Summary with Emojis

1. Choose Hosts 🖥️

   • 🌐

2. Select Module 📦

   • ⚙️

3. Provide Arguments 📝

   • 🕒 (or relevant emoji)

4. Run Command 🧩

   • Combine all steps: 🌐⚙️🕒

Task-01

• write an ansible ad hoc ping command to ping 3 servers from inventory file

Step 1: Inventory File

First, ensure you have an inventory file (let's call it hosts.ini) that lists the three servers. Your hosts.ini might look something like this:

iniCopy code[servers]
server1.example.com
server2.example.com
server3.example.com

Step 2: Ad-hoc Ping Command

Now, you can use the following Ansible Ad-hoc command to ping the servers listed in the inventory file:

bashCopy codeansible servers -i hosts.ini -m ping

Explanation with Emojis

1. Specify the Group of Hosts 🖥️

   • servers: Target the servers group in the inventory file.

   • Emoji: 🖥️🖥️🖥️

2. Specify the Inventory File 📋

   • -i hosts.ini: Use hosts.ini as the inventory file.

   • Emoji: 📋

3. Select the Module 📦

   • -m ping: Use the ping module to check connectivity.

   • Emoji: 🏓

4. Putting it all together 🧩

   • Command: ansible servers -i hosts.ini -m ping

   • Emoji Sequence: 🖥️🖥️🖥️📋🏓

Full Command with Emojis

bashCopy codeansible servers -i hosts.ini -m ping

• Choose Hosts: 🖥️🖥️🖥️

• Specify Inventory File: 📋

• Select Module: 🏓

• Run Command: 🧩

• Write an ansible ad hoc command to check uptime

  Certainly! To check the uptime of your servers using an Ansible Ad-hoc command, you can use the command module with the uptime command.

  Command

    bashCopy codeansible all -m command -a "uptime"
  

  Explanation with Emojis

  1. Specify Hosts 🖥️

     • all: Target all hosts in your inventory.

     • Emoji: 🌐

  2. Select Module 📦

     • -m command: Use the command module.

     • Emoji: ⚙️

  3. Provide Arguments 📝

     • -a "uptime": Pass the uptime command as an argument.

     • Emoji: 🕒

  4. Putting it all together 🧩

     • Command: ansible all -m command -a "uptime"

     • Emoji Sequence: 🌐⚙️🕒

Full Command with Emojis

    bashCopy codeansible all -m command -a "uptime"

• Choose Hosts: 🌐

• Select Module: ⚙️

• Provide Arguments: 🕒

• Run Command: 🧩

This command will run the uptime command on all the hosts in your inventory, displaying the current uptime for each host.