<p>How do you list components running on the master Kubernetes node?</p>

<p>I assume there should be a <code>kubeadm</code> or <code>kubectl</code> command but can't find anything.</p>

<p>E.g. I'm looking to see if the Scheduler is running and I've used <code>kubeadm config view</code> which lists:</p>

<pre><code>scheduler: {}
</code></pre>

<p>but not sure if that means the Scheduler is not running or there's simply no config for it.</p>

Snowcrash
<p>Since you have installed with <code>kubeadm</code>, the control plane components must be running as pods in kube-system namespace. So you can run the following command to see if scheduler is running.</p>

<pre><code>#  kubectl get pod -n kube-system
NAME                                               READY   STATUS    RESTARTS   AGE
calico-node-4x9fp                                  2/2     Running   0          4d6h
coredns-86c58d9df4-bw2q9                           1/1     Running   0          4d6h
coredns-86c58d9df4-gvcl9                           1/1     Running   0          4d6h
etcd-k1                                            1/1     Running   0          4d6h
kube-apiserver-k1                                  1/1     Running   0          4d6h
kube-controller-manager-k1                         1/1     Running   83         4d6h
kube-dash-kubernetes-dashboard-5b7cf769bc-pd2n2    1/1     Running   0          4d6h
kube-proxy-jmrrz                                   1/1     Running   0          4d6h
kube-scheduler-k1                                  1/1     Running   82         4d6h
metrics-server-8544b5c78b-k2lwt                    1/1     Running   16         4d6h
tiller-deploy-5f4fc5bcc6-gvhlz                     1/1     Running   0          4d6h

</code></pre>

<p>If you want to know all pods running on a master node(or any particular node), you can use field-selector to select the node.</p>

<pre><code>kubectl get pod --all-namespaces --field-selector  spec.nodeName=&lt;nodeName&gt;
</code></pre>

<p>To filter pods only in kube-system namespace running on particular node -</p>

<pre><code>kubectl get pod -n kube-system --field-selector  spec.nodeName=&lt;nodeName&gt;
</code></pre>
