Kubernetes pod is pending-CodePudding

I'm trying to deploy a docker image (https://hub.docker.com/r/digitorus/eramba-db) to Kubernetes. My workflow is using docker pull digitorus/eramba-db to pull the image and using the below .yaml file to deploy to a separate namespace (eramba-1)

    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: eramba
      namespace: eramba-1
      labels:
         app: eramba               
    spec:
      replicas: 1
      selector:
        matchLabels:
          app: eramba
      template:
        metadata:
          labels:
            app: eramba
        spec:
          containers:
          - name: eramba
            image: docker.io/digitorus/eramba:latest
            ports:
            - containerPort: 80

The master node has a status of (notReady) and the pod is pending.

Update - I had to change this question back to the original question for Stackoverflow's one post one question rule.

CodePudding user response：

Taints:             node.kubernetes.io/not-ready:NoSchedule
...
Namespace                 Name
---------                 ----
kube-system               etcd-osboxes
kube-system               kube-apiserver-osboxes
kube-system               kube-controller-manager-osboxes
kube-system               kube-proxy-hhgwr
kube-system               kube-scheduler-osboxes
...

After you ran kubeadm that installed core k8s components, your cluster needs to have network plugin installed and functioning so your node can be ready for workload deployment. Then you can remove the "master" taint kubectl taint nodes --all node-role.kubernetes.io/master- so that pod can be deploy on this single node.