<p>I am super new to Kubernetes.  I have inherited a side project - really an in progress POC - from another developer that recently left the team.  He did a demo from a VM that we still have access to before he abruptly left.  After he left we were able to go through his demo and things were working.  One of the team members restarted the VM and now things are broken.  I've been assigned to figure things out.  I've been able to bring all the components back up aside from the Kubernetes part which all stack traces point to being the issue at the moment.</p>
<p>As mentioned I am new to Kubernetes, so I lack the vocabulary to do proper searches online.</p>
<p>I have ran a few commands have pasted their output below.  If I understand correctly the issue is with the k8s deployment not running:
kubectl get all</p>
<pre><code>NAME                        TYPE        CLUSTER-IP      EXTERNAL-IPPORT(S)  AGE                                                 AGE
service/kubernetes          ClusterIP   10.96.0.1       &lt;none&gt;              443/TCP                                             14d
service/app-service-5x7z    NodePort    10.96.215.11    &lt;none&gt;              3000:32155/TCP,3001:32762/TCP,27017:30770/TCP       3d

NAME                                    READY   UP-TO-DATE  AVAILABLE   AGE
deployment.apps/app-deployment-5x7z     0/1     1           0           3d

NAME                                    DESIRED     CURRENT     READY       AGE
replicaset.apps/app-deployment-5x7z     1           1           0           3d
</code></pre>
<p>I'm guessing that the issue is with the fact that the READY state is <strong>0/1</strong></p>
<p>Can someone please guide me as to how I can bring this guy back up?  Also, I see a lot of heavy documentation online, is there a place with a shallow bank that I can dive into the work of Kubernetes.  I'm very excited about this opportunity, but it just hasn't been a smooth start.</p>

<p>Reset the node by</p>

<pre><code>kubeadm reset -f
</code></pre>

<p>Cleanup old flannel installation</p>

<pre><code>rm -rf /var/lib/cni/
rm -rf /run/flannel
rm -rf /etc/cni/

ip link delete cni0
ip link delete flannel.1
</code></pre>

<p>and then install Kubernetes </p>

<pre><code>kubeadm init --pod-network-cidr=10.244.0.0/16
</code></pre>

<p>Install flannel</p>

<pre><code>kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/2140ac876ef134e0ed5af15c65e414cf26827915/Documentation/kube-flannel.yml
</code></pre>
