标签:检查 节点 解析 root bin target port data create
# 写入配置
$ cat > nginx-ds.yml <<EOF
apiVersion: v1
kind: Service
metadata:
name: nginx-ds
labels:
app: nginx-ds
spec:
type: NodePort
selector:
app: nginx-ds
ports:
- name: http
port: 80
targetPort: 80
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: nginx-ds
labels:
addonmanager.kubernetes.io/mode: Reconcile
spec:
selector:
matchLabels:
app: nginx-ds
template:
metadata:
labels:
app: nginx-ds
spec:
containers:
- name: my-nginx
image: nginx:1.17
ports:
- containerPort: 80
EOF
# 创建ds
$ kubectl create -f nginx-ds.yml
# 检查各 Node 上的 Pod IP 连通性
$ kubectl get pods -o wide
# 在每个节点上ping pod ip
$ ping <pod-ip>
# 检查service可达性
$ kubectl get svc
# 在每个节点上访问服务
$ curl <service-ip>:<port>
# 在每个节点检查node-port可用性
$ curl <node-ip>:<port>
# 创建一个nginx pod
$ cat > pod-nginx.yaml <<EOF
apiVersion: v1
kind: Pod
metadata:
name: nginx
spec:
containers:
- name: nginx
image: nginx:1.17
ports:
- containerPort: 80
EOF
# 创建pod
$ kubectl create -f pod-nginx.yaml
# 进入pod,查看dns
$ kubectl exec nginx -i -t -- /bin/bash
# 查看dns配置
root@nginx:/# cat /etc/resolv.conf
# 查看名字是否可以正确解析
root@nginx:/# ping nginx-ds
基于 kubeadm 搭建高可用的kubernetes 1.18.2 (k8s)集群 三 集群可用性测试
标签:检查 节点 解析 root bin target port data create
原文地址:https://www.cnblogs.com/itgiser/p/12984594.html