Using the Live UI

You can interact with the Pixie platform using the web-based Live UI, CLI or API.

Scripts run in the Live UI offers rich visualizations that are not available with the CLI or API. For this reason, we recommend that developers who are new to Pixie begin by using the Live UI.

Pixie needs to be installed on your Kubernetes cluster. If it is not already installed, please consult our install guides.

1. Open Pixie's Live UI.

2. Select your cluster using the cluster drop-down menu.

3. Select the px/cluster script from the script drop-down menu. The right-half of this menu displays a description of the selected script.

4. Run the script using the RUN button in the top right. The px/cluster script lists all of the namespaces, services, nodes and pods on your cluster. After running the script, you should see something similar to the following.

Tables in the script output can be sorted by column by clicking on the column title. Rows in the table can be expanded by clicking on the row.

Scripts often take arguments, which will appear next to the cluster and script drop-down menus. This script takes an argument for start_time.

5. Modify the start_time to set it to -10m and re-run the script using the RUN button.

Deep links embedded in the script output allow you to easily navigate between Kubernetes entities.

The "Nodes" table in the px/cluster script output lists all of the nodes in your cluster.

6. Click on any of the node names in the blue underlined text to be taken to the output of the px/node script for that particular node.

Navigating the Live UI is much faster using keyboard shortcuts. To see the shortcut menu, press shift+? or open the menu item (shown below).

Try out the following 2 shortcuts, we'll use them often.

1. Run the current script: ctrl+enter (Windows, Linux) or cmd+enter (Mac)

2. Show / hide the script editor: ctrl+e (Windows, Linux) or cmd+e (Mac)

The Live UI's script drop-down menu lists all of Pixie's open source scripts.

To learn how to use Pixie scripts for a specific use case, check out one of the following tutorials:

• Network Monitoring
• Infra Health
• Service Performance
• Database Query Profiling
• Request Tracing

To learn how to write your own PxL script, check out the tutorial.

For writing quick, one-off scripts, use the Scratch Pad. The Scratch Pad is the first item in the drop-down script menu. Open the script editor to add code to the empty PxL Script.

The Scratch Pad does not yet support persistence, so if you are extensively developing a script, we recommend using the Script Developer Environment.

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