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Scripting, Automation, and Incident Troubleshooting for CompTIA Linux+ (XK0-006)
Prepare for the CompTIA Linux exam by troubleshooting and stabilizing a web application server. Leverage system health and performance metrics tools to identify potential server problems, then create an Ansible playbook to ensure the web service can be brought into alignment consistently. Then, develop a Bash script to perform health checks and kick off the Ansible playbook as needed, and use Python to parse and output logs in a more human-readable format to aid in any future troubleshooting.
Lab Info
Table of Contents
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Challenge
Diagnose and Troubleshoot Performance Issues
Review the status of the nginx service, ensuring it is running, and serving content, then inspect overall system health, including CPU, disk usage, memory, and I/O.
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Challenge
Create an Ansible Playbook
Create a git-backed Ansible playbook that enforces a baseline configuration for the nginx service, ensuring the service is always running and has some quality-of-life features, such as log rotation.
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Challenge
Develop a Performance Health Bash Script
Leveraging scripting features such as conditional logic and loops, ensure the nginx service is running, and the log files are not too large; use the Ansible playbook to bring the server into enforcement if these conditions are not met.
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Challenge
Use Python to Parse Access Log Output
Create a Python script that uses the rich library for structured log analysis of the nginx access logs.
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