安装 Kubenetes 的一些问题

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[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get "http://localhost:10248/healthzefused.

---

[root@master ~]# vim /etc/docker/daemon.json

{
...
"exec-opts": ["native.cgroupdriver=systemd"],
...
}

[root@master ~]# systemctl restart docker

[root@master ~]# kubeadm reset -f


[root@master ~]# kubeadm init \
>   --apiserver-advertise-address=192.168.31.202 \
>   --image-repository registry.aliyuncs.com/google_containers \
>   --service-cidr=10.96.0.0/12 \
>   --pod-network-cidr=10.244.0.0/16

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curl https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | apt-key add - 

cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main
EOF

apt-get update

# master
apt-get install -y kubelet kubeadm kubectl
 
# node 
apt-get install -y kubelet kubeadm

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node 节点

kubeadm join 192.168.29.137:6443 --token 5w6qwh.8n0ektfrjdct3ib4 --discovery-token-ca-cert-hash sha256:af9e070ea723dd2281c2ae2414c932832a012d40bc55dc9c747bb00e68602388


# token 
kubeadm token create --print-join-command

# 生成一个永不过期的token
kubeadm token create --ttl 0

# discovery-token-ca-cert-hash
openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'

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root@server-master:~# kubectl get cs
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME                 STATUS      MESSAGE                                                                                       ERROR
scheduler            Unhealthy   Get "http://127.0.0.1:10251/healthz": dial tcp 127.0.0.1:10251: connect: connection refused   
controller-manager   Healthy     ok                                                                                            
etcd-0               Healthy     {"health":"true","reason":""}

解决

cd /etc/kubernetes/manifests/

vi kube-controller-manager.yaml

vi kube-scheduler.yaml

# 将 --port=0 注释掉

systemctl restart kubelet.service