Run Shell Scripts on Remote Host
Learn how to automate the execution of shell scripts on remote hosts using Ansible, enabling efficient and repeatable task execution in your infrastructure.
This lab will show you how to use Ansible to automate the execution of shell scripts on remote hosts. First, you will set up host mappings, use scp to transfer files, and create a basic playbook to automate script execution. By the end of this lab, you will have practical experience with Ansible for secure and efficient automation and controlling remote hosts.
Learning Outcomes
By completing this lab, you will be able to:
Use scp to transfer files securely between systems.
Write and execute Ansible playbooks to run shell scripts on remote servers.
Verify successful execution of tasks through output and file inspection.
Understand how to set up and execute automated scripts on remote hosts.
Key Concepts
Shell Script Automation
Shell scripts are powerful tools for automating repetitive tasks on Linux systems.
In this lab, a simple shell script writes a "Hello World" message to a file, demonstrating basic script execution.
File Permissions
Scripts need execute permissions (chmod +x) to run on Linux systems.
Managing permissions is critical for security and functionality.
Ansible Modules for Script Automation
shell Module: Used to execute shell commands or scripts on remote hosts.
copy Module: Transfers files such as scripts to remote systems, ensuring they are available for execution.
Example: Run a script remotely and capture its output.
Example: Move the script from your control node to the target host
Conclusion
This lab shows how essential it is to use Ansible to automate shell script execution on remote hosts. An essential tool for system administration, shell scripts allow for the effective handling of repetitive chores. You may easily run these scripts across several systems by utilising Ansible, which ensures consistency and lowers the possibility of human error. With the help of modules like shell and copy and Ansible's automation features, you can improve security, maintain scalable infrastructure, and streamline workflows.