Kubernetes----Pod配置容器端口

一、配置Pod的端口配置

1.1 编写yaml文件

编写 pod_ports.yaml文件，内容如下，设置port的name和containerPort，如下

apiVersion: v1kind: Namespacemetadata: name: dev---apiVersion: v1kind: Podmetadata: name: pod-ports namespace: dev labels: user: redrose2100spec: containers: - name: nginx image: nginx:1.17.1 ports: - containerPort: 80 name: nginx-port protocol:

1.2 创建资源

使用如下命令创建资源

[root@master pod]# kubectl apply -f pod_ports.yamlnamespace/dev createdpod/pod-ports created[root@master pod]#

1.3 查看Pod的IP和端口等信息

使用如下命令可以查看到ip和端口

[root@master pod]# kubectl get pod -n dev -o wideNAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATESpod-ports 1/1 Running 0 3m 10.244.2.36 node2 [root@master pod]# kubectl describe pod pod-ports -n devName: pod-portsNamespace: devPriority: 0Node: node2/192.168.16.42Start Time: Tue, 22 Mar 2022 00:55:03 +0800Labels: user=redrose2100Annotations: Status: RunningIP: 10.244.2.36IPs: IP: 10.244.2.36Containers: nginx: Container ID: docker://b3514575830f43fdedf27a2ed784f52c41183b22a7cd2050fad361ce0802ef41 Image: nginx:1.17.1 Image ID: docker-pullable://nginx@sha256:b4b9b3eee194703fc2fa8afa5b7510c77ae70cfba567af1376a573a967c03dbb Port: 80/TCP Host Port: 0/TCP State: Running Started: Tue, 22 Mar 2022 00:55:04 +0800 Ready: True Restart Count: 0 Environment: Mounts: /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-9c8z2 (ro)Conditions: Type Status Initialized True Ready True ContainersReady True PodScheduled TrueVolumes: kube-api-access-9c8z2: Type: Projected (a volume that contains injected data from multiple sources) TokenExpirationSeconds: 3607 ConfigMapName: kube-root-ca.crt ConfigMapOptional: DownwardAPI: trueQoS Class: BestEffortNode-Selectors: Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s node.kubernetes.io/unreachable:NoExecute op=Exists for 300sEvents: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 3m8s default-scheduler Successfully assigned dev/pod-ports to node2 Normal Pulled 3m7s kubelet Container image "nginx:1.17.1" already present on machine Normal Created 3m7s kubelet Created container nginx Normal Started 3m7s kubelet Started container nginx[root@master pod]#

1.4 使用IP和端口验证

在集群环境中使用ip+port访问nginx，如下，即能正确访问nginx

[root@master pod]# curl 10.244.2.36:80

Welcome to nginx!

If you see this page, the nginx web server is successfully installed andworking. Further configuration is required.

For online documentation and support please refer to