Kubeadm Errors: network plugin is not ready: cni config uninitialized

Error Message

=================================
$ kubectl get nodes
NAME                                          STATUS     ROLES    AGE   VERSION
ip-172-31-23-27.ap-south-1.compute.internal   NotReady   master   79m   v1.17.1
=================================
$ kubectl describe nodes ip-172-31-23-27.ap-south-1.compute.internal
 Ready            False   Fri, 17 Jan 2020 06:18:48 +0000   Fri, 17 Jan 2020 05:03:20 +0000   KubeletNotReady              runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
=================================
$ kubectl get pods -n=kube-system
NAME                                                                  READY   STATUS    RESTARTS   AGE
coredns-6955765f44-7cgfn                                              0/1     Pending   0          80m
coredns-6955765f44-xjtww                                              0/1     Pending   0          80m
etcd-ip-172-31-23-27.ap-south-1.compute.internal                      1/1     Running   0          80m
kube-apiserver-ip-172-31-23-27.ap-south-1.compute.internal            1/1     Running   0          80m
kube-controller-manager-ip-172-31-23-27.ap-south-1.compute.internal   1/1     Running   0          80m
kube-proxy-bd9n6                                                      1/1     Running   0          80m
kube-scheduler-ip-172-31-23-27.ap-south-1.compute.internal            1/1     Running   0          80m
=================================
$ kubectl describe pods coredns-6955765f44-7cgfn -n=kube-system
Events:
  Type     Reason            Age                   From               Message
  ----     ------            ----                  ----               -------
  Warning  FailedScheduling  4m23s (x53 over 80m)  default-scheduler  0/1 nodes are available: 1 node(s) had taints that the pod didn't tolerate.Code language: PHP (php)

Solution

For Weavenet
$ kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"

OR
For Calico
$ kubectl apply -f https://docs.projectcalico.org/v3.11/manifests/calico.yamlCode language: JavaScript (javascript)

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.