This section provides step-by-step guides to solve specific problems you encounter during Kubernetes operations. Each guide presents clear objectives with concrete solutions.

Selecting the Right Guide#

If you’re not sure which guide to follow, use the flowchart below.

flowchart TD
    START[Problem Occurred] --> Q1{Is Pod status<br>normal?}

    Q1 -->|Pending/Error/CrashLoop| A[Pod Troubleshooting]
    Q1 -->|Running| Q2{What is the problem?}

    Q2 -->|Performance issue| B[Resource Optimization]
    Q2 -->|Connection failure| C[Network Troubleshooting]
    Q2 -->|Need log inspection| D[Log Collection & Analysis]

    A --> A1["Identify cause by status<br>Analyze events/logs"]
    B --> B1["Measure usage<br>Adjust requests/limits"]
    C --> C1["Diagnose connection flow<br>Service/DNS/Ingress"]
    D --> D1["Use kubectl logs<br>Pattern analysis"]

    style A fill:#f9f,stroke:#333
    style B fill:#bbf,stroke:#333
    style C fill:#bfb,stroke:#333
    style D fill:#fbf,stroke:#333

This diagram shows how to choose the appropriate troubleshooting guide based on problem type (Pod status, performance, connectivity, or logs).

Guide List#

How to Use These Guides#

1. Select the guide that matches the problem you’re experiencing
2. Verify prerequisites in the Before You Begin section
3. Follow the step-by-step instructions in order
4. Confirm progress using the Success Check items at each step
5. If the problem isn’t resolved, refer to the Common Errors section