Kubeadm init stops at image pulling

问题

I'm having some troubles with initializing the master using kubeadm..

I'm trying to follow https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/ . I installed docker, kubelet, kubeadm and kubectl.

Now I executed kubeadm init, but it stops at [init] This might take a minute or longer if the control plane images have to be pulled.

I looked into journalctl and there I found out that: Unable to update cni config: No networks found in /etc/cni/net.d and Failed to list *v1.Pod: Get https://10.159.43.30:6443/api/v1/pods?fieldSelector=spec.nodeName%3Deskubernv01&limit=500&resourceVersion=0: dial tcp 10.159.43.30:6443: getsockopt: connection refused.

I tried to set up weave-net with kubectl apply -f https://git.io/weave-kube but it cannot connect: The connection to the server localhost:8080 was refused - did you specify the right host or port?.

I cannot copy admin.conf file which should allow me to connect from /etc/kubernates, because kubeadm init failed so these are not proper files.

I feel like I'm in a loop here and I'm mising something.

I'm out of options right now. Any ideas?

回答1:

I found the way out.

If anyone has a problem like this - check docker logs.

In my case it was proxy which was unset for docker service. To set it I used:

Create a systemd drop-in directory for the docker service: $ sudo mkdir -p /etc/systemd/system/docker.service.d
Create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable: [Service] Environment="HTTP_PROXY=http://proxy.example.com:80/"

Source: https://docs.docker.com/config/daemon/systemd/#httphttps-proxy

回答2:

I solved it by specifying the version [1.9.7-00] when installing kubeadm,kubectl,and kubelet , like this:

# ----- Install kubernetes -----
# kubeadm docs: https://kubernetes.io/docs/setup/independent/install-kubeadm/
echo " "
echo - Installing Kubernetes...
apt-get update && apt-get install -y apt-transport-https
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb http://apt.kubernetes.io/ kubernetes-xenial main
EOF
apt-get update
apt-get install -y kubelet=1.9.7-00 kubeadm=1.9.7-00 kubectl=1.9.7-00

Note the kubelet=1.9.7-00 kubeadm=1.9.7-00 kubectl=1.9.7-00

来源：https://stackoverflow.com/questions/48861798/kubeadm-init-stops-at-image-pulling

标签

Kubernetes

init

kubeadm