How to connect to a Cluster

We can just run the command

kubectl --kubeconfig="/home/den/Altenar/k8s/test_cluster.yml" get pods

with cluster config stored in test_cluster.yml file

Or we can modify cluster config stored in $HOME/.kube/config file

apiVersion: v1
clusters:
- cluster:
    certificate-authority: /home/den/.minikube/ca.crt
    server: https://192.168.99.100:8443
  name: minikube
contexts:
- context:
    cluster: minikube
    user: minikube
  name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
  user:
    client-certificate: /home/den/.minikube/client.crt
    client-key: /home/den/.minikube/client.key

apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: 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
    server: https://35.187.70.82
  name: gke_altenar-dev-sbenvs_europe-west1_euwe1c1-gke000
contexts:
- context:
    cluster: gke_altenar-dev-sbenvs_europe-west1_euwe1c1-gke000
    namespace: test
    user: test-user
  name: gke_altenar-dev-sbenvs_europe-west1_euwe1c1-gke000
current-context: gke_altenar-dev-sbenvs_europe-west1_euwe1c1-gke000
kind: Config
preferences: {}
users:
- name: test-user
  user:
    token: eyJhbGciOiJSUzI1NiIsImtpZCI6IlV2bXVvR3NJS0tQU2JnMG84UFNxOUEzdXA0SEx1Y1FrdmtzUE42ZEVBNjgifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJ0ZXN0Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZWNyZXQubmFtZSI6InRlc3QtdXNlci10b2tlbi13cHZ2cyIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJ0ZXN0LXVzZXIiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC51aWQiOiJkNjE1OWQ2YS1jNWRjLTQ0ZGUtOGFiYy01YzQ1NmMxZTM2OGEiLCJzdWIiOiJzeXN0ZW06c2VydmljZWFjY291bnQ6dGVzdDp0ZXN0LXVzZXIifQ.ab4ywvDQwrc6WTjkksAOWu8uaphY8xWOedd2lnBvAp2epN8MTt5_Dc2-LImUMHbvqPkkoSKkYwRS4uQ-vUGcOLT33DDyxI6hSjLH9qqjd3BhcxhhJEL6M7F1CZ4f7YWSQtF-I8TW4-uwmEcqZB_nh0am7DwBrV7WDtysOFCW6YktPPFhxYUJLq7kh2-2UiEtLVgIqBI_C2EAxBy8pXlvce4m0n4R9yGoAHgEmofScjao4U2FnaP1FSPorv6_ubWi9R3qFyYFTfk2FwUIqyI_m-1twE4hJOBeNf7fxzg1CJArK5fkIrXzVVK7HJwWIVWXtK57PodkCLp2UI_iPEbnxA

to use the context we need to set the command and set the context name from the config file

sudo kubectl config --kubeconfig="/home/den/Altenar/k8s/test_cluster.yml" use-context gke_altenar-dev-sbenvs_europe-west1_euwe1c1-gke000

After that we can check available contexts

kubectl config view
kubectl config get-contexts

How to Connect to a DigitalOcean Kubernetes Cluster | DigitalOcean DocumentationDigitalOcean

Organizing Cluster Access Using kubeconfig FilesKubernetes

NLAM0

den@laptop ~ $ kubectl config get-contexts
CURRENT   NAME         CLUSTER      AUTHINFO     NAMESPACE
          nlam0-d003   nlam0-d003   d003-admin   d003
          nlam0-p001   nlam0-p001   p001-admin   p001
          nlam0-p002   nlam0-p002   p002-admin   p002
*         nlam0-p120   nlam0-p120   p120-admin   p120
          nlam0-s001   nlam0-s001   s001-admin   s001
          nlam0-s002   nlam0-s002   s002-admin   s002
          nlam0-s120   nlam0-s120   s120-admin   s120

kubectl config use-context nlam0-s002