kubectl cluster-info dump

# Dump current cluster state to stdout
kubectl cluster-info dump
  
# Dump current cluster state to /path/to/cluster-state
kubectl cluster-info dump --output-directory=/path/to/cluster-state
  
# Dump all namespaces to stdout
kubectl cluster-info dump --all-namespaces
  
# Dump a set of namespaces to /path/to/cluster-state
kubectl cluster-info dump --namespaces default,kube-system --output-directory=/path/to/cluster-state

      --all-namespaces[=false]: If true, dump all namespaces.  If true, --namespaces is ignored.
      --namespaces=[]: A comma separated list of namespaces to dump.
      --output-directory="": Where to output the files.  If empty or '-' uses stdout, otherwise creates a directory hierarchy in that directory

      --alsologtostderr[=false]: log to standard error as well as files
      --as="": Username to impersonate for the operation.
      --certificate-authority="": Path to a cert. file for the certificate authority.
      --client-certificate="": Path to a client certificate file for TLS.
      --client-key="": Path to a client key file for TLS.
      --cluster="": The name of the kubeconfig cluster to use
      --context="": The name of the kubeconfig context to use
      --insecure-skip-tls-verify[=false]: If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure.
      --kubeconfig="": Path to the kubeconfig file to use for CLI requests.
      --log-backtrace-at=:0: when logging hits line file:N, emit a stack trace
      --log-dir="": If non-empty, write log files in this directory
      --log-flush-frequency=5s: Maximum number of seconds between log flushes
      --logtostderr[=true]: log to standard error instead of files
      --match-server-version[=false]: Require server version to match client version
      --namespace="": If present, the namespace scope for this CLI request.
      --password="": Password for basic authentication to the API server.
  -s, --server="": The address and port of the Kubernetes API server
      --stderrthreshold=2: logs at or above this threshold go to stderr
      --token="": Bearer token for authentication to the API server.
      --user="": The name of the kubeconfig user to use
      --username="": Username for basic authentication to the API server.
      --v=0: log level for V logs
      --vmodule=: comma-separated list of pattern=N settings for file-filtered logging