clusteradm CLI & CLI Plugin

A CLI and kubernetes CLI plugin that allows you to interact with open-cluster-management to manage your Hybrid Cloud presence from the command-line.

Quick start

Install the clusteradm command-line:

From binaries:

The binaries for several platforms are available here.

• Download the compressed file from here
• Uncompress the file and place the output in a directory of your $PATH

From source:

Go 1.17 is required in order to build or contribute on this project as it leverage the go:embed tip. The binary will be installed in $GOPATH/bin

git clone https://github.com/open-cluster-management-io/clusteradm.git
cd clusteradm
make build
clusteradm

Initialize a hub and join a cluster

# Initialize the hub
kubectl config use-context <hub cluster context> # kubectl config use-context kind-hub
clusteradm init

# Request a managed cluster to join the hub
kubectl config use-context <managed cluster context> # kubectl config use-context kind-managed-cluster
clusteradm join --hub-token <token> --hub-apiserver <api server url> --cluster-name <cluster name>

# Accept the managed cluster request on the hub
kubectl config use-context <hub cluster context> # kubectl config use-context kind-hub
clusteradm accept --clusters <list of clusters> # clusteradm accept --clusters c1,c2,...

After each above clusteradm command, the clusteradm will print out the next clusteradm command to execute which can be copy/paste.

Contributing

See our Contributing Document for more information.

Commands

The commands are composed of a verb and a noun and then a number of parameters. Logs can be gather by setting the klog flag -v. To get the logs in a separate file:

clusteradm <subcommand> -v 2 > <your_logfile>

or

clusteradm <subcommand> -v 99 --logtostderr=false --log-file=<your_log_file>

version

Display the clusteradm version and the kubeversion

clusteradm version

init

Initialize the hub by deploying the hub side resources to manage clusters.

clusteradm init [--use-bootstrap-token]

it returns the command line to launch on the spoke to join the hub.

join

Install the agent on the spoke.

clusteradm join --hub-token <token> --hub-apiserver <hub_apiserver_url> --cluster-name c1

it returns the command line to launch on the hub the accept the spoke onboarding.

accept

Accept the CSRs on the hub to approve the spoke clusters to join the hub.

clusteradm accept --clusters <cluster1>, <cluster2>,....

install hub-addon

Install specific built-in add-on(s) to the hub cluster.

clusteradm install hub-addon --names application-manager

clusteradm install hub-addon --names policy-framework

enable addons

Enable specific add-on(s) agent deployment to the given managed clusters of the specify namespace

clusteradm addon enable --name application-manager --namespace <namespace> --cluster <cluster1>,<cluster2>,....