The file is this:
- name: development
cluster:
certificate-authority: /etc/kubernetes/pki/ca.crt
server: https://controlplane:6443
- name: kubernetes-on-aws
cluster:
certificate-authority: /etc/kubernetes/pki/ca.crt
server: https://controlplane:6443
- name: test-cluster-1
cluster:
certificate-authority: /etc/kubernetes/pki/ca.crt
server: https://controlplane:6443
contexts:
- name: test-user@development
context:
cluster: development
user: test-user
- name: aws-user@kubernetes-on-aws
context:
cluster: kubernetes-on-aws
user: aws-user
- name: test-user@production
context:
cluster: production
user: test-user
- name: research
context:
cluster: test-cluster-1
user: dev-user
users:
- name: test-user
user:
client-certificate: /etc/kubernetes/pki/users/test-user/test-user.crt
client-key: /etc/kubernetes/pki/users/test-user/test-user.key
- name: dev-user
user:
client-certificate: /etc/kubernetes/pki/users/dev-user/developer-user.crt
client-key: /etc/kubernetes/pki/users/dev-user/dev-user.key
- name: aws-user
user:
client-certificate: /etc/kubernetes/pki/users/aws-user/aws-user.crt
client-key: /etc/kubernetes/pki/users/aws-user/aws-user.key
current-context: test-user@development
preferences: {}i dont want to count how many diff clusters there is. HOw to count it with shell cmd?
cat config.txt > grep 'cluster' wc -lis not working
You can use kubectl config view command with the help of -o jsonpath to list cluster names:
$ kubectl config view -o jsonpath='{.clusters[*].name}'
cluster-1 cluster-2 cluster-3
To count them:
$ kubectl config view -o jsonpath='{.clusters[*].name}' | wc -w
3
You can also prettify your output by using tr " " "\n" command which will replace white space with a newline.
$ kubectl config view -o jsonpath='{.clusters[*].name}' | tr " " "\n"
cluster-1
cluster-2
cluster-3
This one is simple
kubectl config get-contexts | grep -v NAME | wc -l