Contexts and Configuration

Kubeconfig File

Located at ~/.kube/config by default:

apiVersion: v1
kind: Config
clusters:
- name: production
  cluster:
    server: https://prod-cluster:6443
    certificate-authority: /path/to/ca.crt
- name: development
  cluster:
    server: https://dev-cluster:6443
contexts:
- name: prod-context
  context:
    cluster: production
    user: admin
    namespace: default
- name: dev-context
  context:
    cluster: development
    user: developer
    namespace: development
users:
- name: admin
  user:
    client-certificate: /path/to/admin.crt
    client-key: /path/to/admin.key
current-context: prod-context

Context Commands

# View current context
kubectl config current-context

# List all contexts
kubectl config get-contexts

# Switch context
kubectl config use-context dev-context

# Set default namespace for context
kubectl config set-context --current --namespace=development

View Configuration

# View config
kubectl config view

# View specific cluster
kubectl config view -o jsonpath='{.clusters[?(@.name=="production")].cluster.server}'

Using Multiple Kubeconfigs

# Merge configs
export KUBECONFIG=~/.kube/config:~/.kube/config-cluster2

# Use specific config
kubectl --kubeconfig=/path/to/config get pods

Useful Aliases

# Add to ~/.bashrc or ~/.zshrc
alias k='kubectl'
alias kgp='kubectl get pods'
alias kgs='kubectl get svc'
alias kgd='kubectl get deployments'
alias kaf='kubectl apply -f'
alias kdel='kubectl delete'
alias kex='kubectl exec -it'
alias klo='kubectl logs -f'

kubectl Configuration

kubectl Configuration

Contexts and Configuration

Kubeconfig File

Context Commands

View Configuration

Using Multiple Kubeconfigs

Useful Aliases