Table of Contents

1. Challenge

   Create the Dashboard and Add a Web Server Status Panel

   1. Click the Create button on the left, and then select Dashboard.

   2. Click the Save Dashboard button near the top right. For the dashboard name, enter "LimeDrop Web Server", and then save.

   3. Click the Add Panel button near the top right, and then Add Query.

   4. For the PromQL query, enter:

      up{instance="limedrop-web:9100"}
      

   5. Click the Visualization icon. Click the visualization type dropdown that currently says Graph and change it to Singlestat.

   6. Under Value Mappings, enter two value to text mappings:

      • 1 -> Up
      • 0 -> Down

   7. Click the General icon.

   8. Change the panel title to "Server Status".

   9. Click the back button in the top left. You should see your dashboard, and the Server Status panel should say Up.

   10. Click the Save Dashboard button near the top right, and then Save to save your changes.

2. Challenge

   Create a CPU Usage Graph Panel

   1. Navigate to the LimeDrop Web Server dashboard.

   2. Click the Add Panel button near the top right, and then Add Query.

   3. For the PromQL query, enter:

      sum(rate(node_cpu_seconds_total{instance='limedrop-web:9100',mode!='idle'}[5m])) * 100
      

   4. Click the General icon, and change the panel title to "CPU Usage".

   5. Click the back button in the top left. You should see your dashboard, and there should be a graph showing CPU utilization.

   6. Click the Save Dashboard button near the top right, and then Save to save your changes.

3. Challenge

   Create a Memory Usage Graph Panel

   1. Click the Add Panel button near the top right, and then Add Query.

   2. For the PromQL query, enter:

      100 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100
      

   3. Click the General icon, and change the panel title to "Memory Usage".

   4. Click the back button in the top left. You should see your dashboard, and there should be a graph showing memory utilization.

   5. Rearrange your panels by dragging and dropping them if desired.

   6. Click the Save Dashboard button near the top right, and then Save to save your changes.