Flannel: kubectl apply -f kube-flannel.yml fails

[SyCode7]

I am installing a single node of kubernetes on Ubuntu 16. I continuously encounter the error : unable to recognize "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml": yaml: line 10: mapping values are not allowed in this context

whenever I pass the command:

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-legacy.yml

I have tried several online yaml formatting and there seems to be no problem with the yaml file (kube-flannel.yml).

I am not sure how to proceed to configure flannel for the kubernetes networking.

[atooki]

@SyCode7 are you logged in as root or a regular user? You will get that problem if logged in as root. (Well I did anyway)

[tejp1002]

I am trying to set up a single node Kubernetes Cluster from https://ninetaillabs.com/setting-up-a-single-node-kubernetes-cluster/ and getting error dial tcp 127.0.0.1:6443: connect: connection refused
when kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.9.1/Documentation/kube-flannel.yml is executed.
I have tried different yml files
https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml
https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml
but every time it is dial tcp 127.0.0.1:6443: connect: connection refused.

Thanks

[ravijangra]

try running following commands before you run kubectl apply command

ravijangra@kubemaster:~$ mkdir -p ~/.kube
ravijangra@kubemaster:~$ sudo cp -i /etc/kubernetes/admin.conf ~/.kube/config
ravijangra@kubemaster:~$ sudo chown $(id -u):$(id -g) ~/.kube/config

[sys-ops]

It does not matter if you run "kubeadm join" as root or not (however, it is better to run it a regular user with sudo). The problem is that you must follow the steps listed after you run "kubeadm init", which is:
Your Kubernetes master has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/

And after creating .kube directory in your $HOME, copying kubernetes admin.conf file and setting appropriate file permission you may successfully issue:
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-legacy.yml