1 创建 k8s 单节点集群

1.1 创建集群

# kind create cluster --name k8s-single-node-cluster

1.2 查看集群信息

# export KUBECONFIG="$(kind get kubeconfig-path --name="k8s-single-node-cluster")"

# echo $KUBECONFIG

# kubectl cluster-info

1.3 查看集群节点信息

# kubectl get nodes

1.4 查看集群组件信息 

# kubectl get cs

1.5 创建 deployment 和 pod

# kubectl run nginx --image=nginx:1.14-alpine --replicas=2

1.6 查看 pod 信息

# kubectl get pods

2 创建 k8s 多节点集群（1 master 1 worker）

2.1 编写多节点集群配置文件

# touch /opt/kind/config/k8s-multi-nodes-cluster.yaml

文件内容如下：

kind: Cluster

apiVersion: kind.sigs.k8s.io/v1alpha3

nodes:

- role: control-plane

- role: worker

2.2 创建多节点集群

# kind create cluster --config ./k8s-multi-nodes-cluster.yaml --name k8s-multi-nodes-cluster

2.3 设置和获取多节点集群信息

# export KUBECONFIG="$(kind get kubeconfig-path --name="k8s-multi-nodes-cluster")"

# kubectl cluster-info

2.4 查看多节点集群信息

# kubectl get nodes

3 创建 HA 高可用 k8s 集群（多 master，多 worker）

3.1 编写高可用集群配置文件

# touch /opt/kind/config/k8s-ha-cluster.yaml

文件内容如下：

# 一共四个节点，二个 control-plane 节点，二个 workers 节点

kind: Cluster

apiVersion: kind.sigs.k8s.io/v1alpha3

kubeadmConfigPatches:- |

    apiVersion: kubeadm.k8s.io/v1beta2

    kind: ClusterConfiguration

    metadata:

        name: config

    networking:    serviceSubnet: 10.8.0.0/16

    imageRepository: registry.aliyuncs.com/google_containers

    nodeRegistration:

        kubeletExtraArgs:

            pod-infra-container-image: registry.aliyuncs.com/google_containers/pause:3.1

- |

    apiVersion: kubeadm.k8s.io/v1beta2

    kind: InitConfiguration

    metadata:    name: config

    networking:

        serviceSubnet: 10.8.0.0/16

    imageRepository: registry.aliyuncs.com/google_containers

nodes:

- role: control-plane

- role: control-plane

- role: worker

- role: worker

3.2 创建高可用集群

# kind create cluster --config ./k8s-ha-cluster.yaml --name k8s-ha-cluster

3.3 设置和获取高可用集群信息

# export KUBECONFIG="$(kind get kubeconfig-path --name="k8s-ha-cluster")"

# kubectl cluster-info

3.4 查看高可用集群信息

# kubectl get nodes

4 删除集群

# kind delete cluster --name k8s-single-node-cluster

同时注意清除一下环境变量：

# unset KUBECONFIG