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Troubleshooting a Containerized Application

In this lab scenario, a containerized application is not working properly and needs to be fixed. Using the various logs available to us, we will find the issue, correct it, and start the application. *This lab is not approved or sponsored by Red Hat.* Due to limitations in the A Cloud Guru Cloud Playground environment, we are unable to provide a hands-on experience for this lab. 1. To complete this lab, you must first register for a Red Hat Developer login on the ***[Red Hat login page](https://developers.redhat.com/login)***. 2. Once registered, you may complete the lab steps using one of the following methods: * Download ***[Red Hat's CodeReady Containers](https://cloud.redhat.com/openshift/install/crc/installer-provisioned)*** and install them locally on your own system. * Log in to your Red Hat Developer account and use a ***[Red Hat-provided OpenShift sandbox](https://developers.redhat.com/products/codeready-containers/overview)***. Solutions for CodeReady Containers and the Red Hat OpenShift sandbox are available in this lab.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Aug 29, 2025

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Table of Contents

  1. Challenge

    Create the New Project

    Create a new project with the name bad-mysql.

    Note: This section only applies to local users of the OpenShift environment. Remote access users should skip this section.

  2. Challenge

    Replicate the Issue with the Application

    Replicate the problem by creating a new MySQL application with the following command: oc new-app --name=secret-db mysql mysql_root_pass=supersecret -l app=secret-db

  3. Challenge

    Troubleshoot and Fix the Application

    • Review the logs for the failing application to find the issue.
    • Fix the issue that is causing the application to fail.

  4. Challenge

    Verify the Application Is Running

    Connect to the new application pod and verify the MySQL instance is working.

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Pluralsight Skills

Pluralsight Skills gives leaders confidence they have the skills needed to execute technology strategy. Technology teams can benchmark expertise across roles, speed up release cycles and build reliable, secure products. By leveraging our expert content, skill assessments and one-of-a-kind analytics, keep up with the pace of change, put the right people on the right projects and boost productivity. It's the most effective path to developing tech skills at scale.

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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Follow along with the author’s guided walkthrough and build something new in your provided environment!

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