KinD是一个工具，用于在Docker中运行本地Kubernetes集群。
基础环境
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OS: macOS
Architecture: ARM64
Driver: Docker
Installer: Homebrew
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安装使用KinD
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➜ brew install kind
==> Installing kind
==> Pouring kind--0.20.0.arm64_sonoma.bottle.tar.gz
==> kind
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➜ kind version
kind v0.20.0 go1.21.1 darwin/arm64
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创建一个名为mycluster的K8S集群，并将hostPort的30080端口暴露到localhost的30080端口。
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➜ vim config-with-port-mapping.yaml
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
extraPortMappings:
- containerPort: 30080
hostPort: 30080
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➜ kind create cluster --name mycluster --config=config-with-port-mapping.yaml
Creating cluster "mycluster" ...
✓ Ensuring node image (kindest/node:v1.27.3)
✓ Preparing nodes
✓ Writing configuration
✓ Starting control-plane
✓ Installing CNI
✓ Installing StorageClass
Set kubectl context to "kind-mycluster"
You can now use your cluster with:
kubectl cluster-info --context kind-mycluster
Thanks for using kind!
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➜ kubectl cluster-info --context kind-mycluster
Kubernetes control plane is running at https://127.0.0.1:64070
CoreDNS is running at https://127.0.0.1:64070/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
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➜ kind get clusters
mycluster
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➜ kubectl get nodes
NAME STATUS ROLES AGE VERSION
mycluster-control-plane Ready control-plane 85s v1.27.3
➜ kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-5d78c9869d-6zdpz 1/1 Running 0 81s
coredns-5d78c9869d-twr96 1/1 Running 0 81s
etcd-mycluster-control-plane 1/1 Running 0 94s
kindnet-x9zrb 1/1 Running 0 81s
kube-apiserver-mycluster-control-plane 1/1 Running 0 96s
kube-controller-manager-mycluster-control-plane 1/1 Running 0 94s
kube-proxy-5zzch 1/1 Running 0 81s
kube-scheduler-mycluster-control-plane 1/1 Running 0 94s
➜ kubectl get namespaces
NAME STATUS AGE
default Active 108s
kube-node-lease Active 108s
kube-public Active 108s
kube-system Active 108s
local-path-storage Active 104s
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部署测试Nginx Service
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➜ kubectl get all
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 119s
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➜ vim nginx-deploy-svc-portmapping.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deploy
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: nginx-svc
spec:
selector:
app: nginx
ports:
- name: http
port: 80
nodePort: 30080
type: NodePort
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➜ kubectl apply -f nginx-deploy-svc-portmapping.yaml
deployment.apps/nginx-deploy created
service/nginx-svc created
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➜ kubectl get all
NAME READY STATUS RESTARTS AGE
pod/nginx-deploy-55f598f8d-f2c2q 1/1 Running 0 35s
pod/nginx-deploy-55f598f8d-ljxd8 1/1 Running 0 35s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 5m5s
service/nginx-svc NodePort 10.96.221.64 <none> 80:30080/TCP 35s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/nginx-deploy 2/2 2 2 35s
NAME DESIRED CURRENT READY AGE
replicaset.apps/nginx-deploy-55f598f8d 2 2 2 35s
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访问Nginx: http://localhost:30080
清理KinD
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➜ kind delete cluster --name mycluster
Deleting cluster "mycluster" ...
Deleted nodes: ["mycluster-control-plane"]
➜ kind get clusters
No kind clusters found.
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