I am looking for a way to list all nodes in a specific nodepool but not able to find any examples.

Is there a way to specify meta data with json? Or use an awk filter?

The following will list all nodes in the cluster kubectl get nodes

CodePudding user response：

Nodes have label with their node group. To print a list of all of yours nodes and their node group run:

> kubectl get node -o=custom-columns='node_name:metadata.name, node_group:metadata.labels.cloud\.google\.com/gke-nodepool'
node_name                                    node_group
gke-ml-prd-default-node-pool-03d09fca-jj3x   default-node-pool
gke-ml-prd-default-node-pool-4649f5b7-j1qc   default-node-pool
gke-ml-prd-default-node-pool-4a9ff740-2my4   default-node-pool
gke-ml-prd-default-node-pool-9a199b2d-q573   default-node-pool

Of course you need to change the label according to your cloud provider. Take a look on the labels of one of your nodes with kubectl describe <node_name> and find the relevant label name.

These are names in the popular cloud providers.

• gke: cloud.google.com/gke-nodepool
• eks: eks.amazonaws.com/nodegroup
• aks: kubernetes.azure.com/agentpool

You can also filter for specific group with kubectl get node --selector='cloud.google.com/gke-nodepool=default-node-pood'