[iyunv@tvm-00 ~]# kubeadm init --pod-network-cidr=172.30.0.0/20 --kubernetes-version=v1.9.0
[init] Using Kubernetes version: v1.9.0
[init] Using Authorization modes: [Node RBAC]
[preflight] Running pre-flight checks.
[WARNING SystemVerification]: docker version is greater than the most recently validated version. Docker version: 17.09.1-ce. Max validated version: 17.03
[WARNING FileExisting-crictl]: crictl not found in system path
[preflight] Starting the kubelet service
[certificates] Generated ca certificate and key.
[certificates] Generated apiserver certificate and key.
[certificates] apiserver serving cert is signed for DNS names [tvm-00 kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [10.96.0.1 10.10.9.67]
[certificates] Generated apiserver-kubelet-client certificate and key.
[certificates] Generated sa key and public key.
[certificates] Generated front-proxy-ca certificate and key.
[certificates] Generated front-proxy-client certificate and key.
[certificates] Valid certificates and keys now exist in "/etc/kubernetes/pki"
[kubeconfig] Wrote KubeConfig file to disk: "admin.conf"
[kubeconfig] Wrote KubeConfig file to disk: "kubelet.conf"
[kubeconfig] Wrote KubeConfig file to disk: "controller-manager.conf"
[kubeconfig] Wrote KubeConfig file to disk: "scheduler.conf"
[controlplane] Wrote Static Pod manifest for component kube-apiserver to "/etc/kubernetes/manifests/kube-apiserver.yaml"
[controlplane] Wrote Static Pod manifest for component kube-controller-manager to "/etc/kubernetes/manifests/kube-controller-manager.yaml"
[controlplane] Wrote Static Pod manifest for component kube-scheduler to "/etc/kubernetes/manifests/kube-scheduler.yaml"
[etcd] Wrote Static Pod manifest for a local etcd instance to "/etc/kubernetes/manifests/etcd.yaml"
[init] Waiting for the kubelet to boot up the control plane as Static Pods from directory "/etc/kubernetes/manifests".
### (输出略)
Your Kubernetes master has initialized successfully!
查看 k8s 集群的信息
### 为了方便执行 kubectl 指令,需要如下操作:
[iyunv@tvm-00 ~]# mkdir -p $HOME/.kube
[iyunv@tvm-00 ~]# cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
### 查看节点信息:
[iyunv@tvm-00 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
tvm-00 NotReady master 19h v1.9.0
### 查看日志:
[iyunv@tvm-00 ~]# journalctl -xeu kubelet
### 查看集群信息:
[iyunv@tvm-00 ~]# kubectl cluster-info
Kubernetes master is running at https://10.10.9.67:6443
KubeDNS is running at https://10.10.9.67:6443/api/v1/n ... /kube-dns:dns/proxy
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
### 部署
[iyunv@tvm-00 network]# kubectl apply -f calico.yaml
configmap "calico-config" created
daemonset "calico-etcd" created
service "calico-etcd" created
daemonset "calico-node" created
deployment "calico-kube-controllers" created
deployment "calico-policy-controller" created
clusterrolebinding "calico-cni-plugin" created
clusterrole "calico-cni-plugin" created
serviceaccount "calico-cni-plugin" created
clusterrolebinding "calico-kube-controllers" created
clusterrole "calico-kube-controllers" created
serviceaccount "calico-kube-controllers" created
### 确认 kube-dns pod is Running
[iyunv@tvm-00 ~]# kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-etcd-djrtb 1/1 Running 1 1d
kube-system calico-kube-controllers-d6c6b9b8-7ssrn 1/1 Running 1 1d
kube-system calico-node-mff7x 2/2 Running 3 1d
kube-system etcd-tvm-00 1/1 Running 1 4h
kube-system kube-apiserver-tvm-00 1/1 Running 0 2m
kube-system kube-controller-manager-tvm-00 1/1 Running 2 3d
kube-system kube-dns-6f4fd4bdf-ntcgn 3/3 Running 7 3d
kube-system kube-proxy-pfmh8 1/1 Running 1 3d
kube-system kube-scheduler-tvm-00 1/1 Running 2 3d
### 确认集群 nodes 的状态
[iyunv@tvm-00 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
tvm-00 Ready master 2d v1.9.0
[iyunv@tvm-00 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
tvm-00 Ready master 3d v1.9.0
tvm-01 Ready <none> 2h v1.9.0
tvm-02 Ready <none> 27s v1.9.0