kubectl pods-on

A kubectl plugin to query list of pods running on a Node (by name or Node label selector).

If you ever found yourself finding a list of Pods on a particular Node or a set of Nodes, you'll find this plugin useful.

Features

• Query multiple Node names at the same time.
• Specify Node selectors (instead of Node names) to query
• Supports -o/--output=json|yaml|wide|jsonpath|go-template|... formats (just like kubectl)
• Performance optimizations like parallel queries.
• Use API Server's watch-cache to serve list-pods-by-node queries 20x-30x faster.
• Runs fast on large clusters, as it employs different query strategies based on the cluster size.

Examples

• List all pods running on a node (or more nodes):

sh kubectl pods-on <node-name> [<node-name>...]

• List all pods running on nodes with a specific label:

sh kubectl pods-on pool=general

• List all pods running on nodes that match a particular selector:

sh kubectl pods-on "topology.kubernetes.io/zone in (us-west-1a, us-west-1b)"

• A combination of both syntaxes (the results of each selector will be OR'ed):

sh kubectl pods-on \ "tier in (db, cache)" \ "foo=bar"\ node1.example.com

Installation

Install using Krew

1. Install Krew using its installation guide.

2. Run kubectl krew install pods-on.

3. kubectl pods-on is ready to use!

Install using go (not recommended)

In this method, you will not receive any updates to the plugin unless you manually run go install again.

1. sh go install github.com/ahmetb/kubectl-pods_on@latest

2. Add $HOME/go/bin to your PATH.

3. Run kubectl pods-on!

License

Distributed as-is under Apache 2.0. See LICENSE.