k8s笔记0

最新推荐文章于 2025-06-13 10:52:08 发布

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本文记录了将OpenAPI服务部署到K8s集群的步骤，包括创建命名空间、配置ConfigMap、部署Pod及设置服务进行外部访问。

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把openapi服务部署上k8s，写了两个yaml文件，一个openapi.conf文件
＃创建命名空间

kubectl create namespace openapi

＃根据config文件创建configmap

kubectl -n openapi create configmap openapi-configmap --from-file=openapi.conf

＃根据deployment.yaml创建pod

kubectl -n openapi create -f deployment_openapi.yaml

＃根据service.yaml创建服务（感觉service就是做了pod外面的转发功能）

kubectl -n openapi create -f service_openapi.yaml

＃获取pod并进入

kubectl -n keystone get pods
kubectl -n keystone exec -it POD-ID -- bash

# service.yaml
apiVersion: v1
kind: Service
metadata:
  name: service-openapi
  namespace: openapi
spec:
  type: NodePort
  ports:
  - name: port-1
    port: 8000 # inner
    targetPort: 8000 # container port
    nodePort: 8000 # out
  selector:
    app: label-openapi

# deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: deployment-openapi
  namespace: openapi
spec:
  replicas: 1 ＃ pod number
  template:
    metadata:
      labels:
        app: label-openapi # pod label
    spec:
      containers:
        - name: container-openapi
          image: qiyun/openapi:latest
          imagePullPolicy: Never
          ports:
            - containerPort: 8000
            - containerPort: 22
          volumeMounts:
            - name: openapi # volume name in k8s
              mountPath: /configfile # config file path
      volumes:
        - name: openapi
          configMap:
            name: openapi-configmap # configmap name in k8s
            items:
            - key: openapi.conf # config file name in k8s
              path: openapi.conf # config file path