K
Q

How to filter the running nodes

3/12/2020

I want to filter the running nodes list . I tried below command but its only showing running status.I need to filter with it name..Any help ?

[root@techsl]# kubectl get nodes -o jsonpath='{range .items[]}{@.metadata.name}:{range @.status.enter code hereconditions[]}{@.type}={@.status};{end}{end}'| tr ';' "\n" | grep "Ready=True"

-- tech sl
bash
kubernetes
linux
openshift

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2 Answers

3/12/2020
kubectl get nodes -o jsonpath="{range .items[*]}{@.metadata.name}: {range @.status.conditions[4]}{@.type}; {end}{end}";

kubernetes-1-17-master: Ready; kubernetes-1-17-worker: Ready;

The way you do:

kubectl get nodes -o jsonpath="{range .items[*]}{@.metadata.name}:{range @.status.conditions[4]}{@.type}={@.status}; {end}{end}" | grep "Ready=True"

kubernetes-1-17-master:Ready=True; kubernetes-1-17-worker:Ready=True;

-- suren
Source: StackOverflow
3/12/2020

Something like this is easier:

kubectl get nodes | grep -v NotReady | awk '{print $1}' | tail -n2
server1
server3

kubectl get nodes

NAME                               STATUS     ROLES    AGE    VERSION
server1                            Ready      master   106d   v1.14.9
server2                            NotReady   <none>   106d   v1.14.9
server3                            Ready      <none>   106d   v1.14.9
-- bob dylan
Source: StackOverflow