“K8s使用deploy部署nginx”的版本间的差异
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| 第1行： | 第1行： | ||
| − | == | + | =info= |
<pre> | <pre> | ||
k8smaster 192.168.88.70 | k8smaster 192.168.88.70 | ||
k8snode1 192.168.88.71 | k8snode1 192.168.88.71 | ||
k8snode2192.168.88.72 | k8snode2192.168.88.72 | ||
| + | </pre> | ||
| + | |||
| + | |||
| + | =使用deployment 部署nginx服务= | ||
| + | <pre> | ||
| + | deploy文件如下： | ||
| + | |||
| + | root@k8s-master:~# cat ngdeploy.yaml | ||
| + | apiVersion: apps/v1 | ||
| + | kind: Deployment | ||
| + | metadata: | ||
| + | name: my-nginx | ||
| + | spec: | ||
| + | replicas: 3 | ||
| + | selector: | ||
| + | matchLabels: | ||
| + | app: nginx | ||
| + | template: | ||
| + | metadata: | ||
| + | labels: | ||
| + | app: nginx | ||
| + | spec: | ||
| + | containers: | ||
| + | - name: nginx | ||
| + | image: nginx:latest | ||
| + | ports: | ||
| + | - containerPort: 80 | ||
| + | --- | ||
| + | apiVersion: v1 | ||
| + | kind: Service | ||
| + | metadata: | ||
| + | name: ngx-service | ||
| + | labels: | ||
| + | app: nginx | ||
| + | spec: | ||
| + | type: NodePort | ||
| + | selector: | ||
| + | app: nginx | ||
| + | ports: | ||
| + | - port: 80 | ||
| + | targetPort: 80 | ||
| + | nodePort: 32500 | ||
| + | |||
| + | |||
| + | |||
| + | 创建deploy | ||
| + | |||
| + | kubectl apply -f ngdeploy.yaml | ||
| + | |||
| + | |||
| + | 查看pod及svc服务 | ||
| + | root@k8s-master:~# kubectl get pod,svc | ||
| + | NAME READY STATUS RESTARTS AGE | ||
| + | pod/my-nginx-585449566-6g2rh 1/1 Running 0 3m37s | ||
| + | pod/my-nginx-585449566-9nwgt 1/1 Running 0 3m37s | ||
| + | pod/my-nginx-585449566-ww28p 1/1 Running 0 3m37s | ||
| + | pod/nginx-deployment 1/1 Running 0 10m | ||
| + | |||
| + | NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE | ||
| + | service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 4h38m | ||
| + | service/ngx-service NodePort 10.96.36.220 <none> 80:32500/TCP 3m37s | ||
| + | root@k8s-master:~# | ||
| + | |||
| + | |||
| + | |||
| + | masterip | ||
| + | http://192.168.88.70:32500/ | ||
| + | </pre> | ||
| + | |||
| + | = 命令行方式创建nginx服务= | ||
| + | <pre> | ||
| + | 1）、创建一个nginx的pod | ||
| + | 现在我们在kubernetes集群中创建一个nginx的pod，验证是否能正常运行。 | ||
| + | 在master节点执行一下步骤： | ||
| + | |||
| + | [root@k8s-master ~]# kubectl create deployment nginx --image=nginx | ||
| + | deployment.apps/nginx created | ||
| + | [root@k8s-master ~]# kubectl expose deployment nginx --port=80 --type=NodePort | ||
| + | service/nginx exposed | ||
| + | |||
| + | |||
| + | 现在我们查看pod和service | ||
| + | |||
| + | [root@k8s-master ~]# kubectl get pod,svc -o wide | ||
| + | NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES | ||
| + | |||
| + | pod/nginx-6799fc88d8-9wjjt 1/1 Running 0 33s 10.244.2.4 k8s-node2 <none> <none> | ||
| + | |||
| + | NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR | ||
| + | service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 4h40m <none> | ||
| + | service/nginx NodePort 10.96.172.103 <none> 80:30346/TCP 22s app=nginx | ||
| + | service/ngx-service NodePort 10.96.36.220 <none> 80:32500/TCP 6m2s app=nginx | ||
| + | root@k8s-master:~# | ||
| + | |||
| + | 打印的结果中，前半部分是pod相关信息，后半部分是service相关信息。我们看service/nginx这一行可以看出service暴漏给集群的端口是 32500。记住这个端口。 | ||
| + | 然后从pod的详细信息可以看出此时pod在node2节点之上。node2节点的IP地址是192.168.88.72 | ||
</pre> | </pre> | ||
| + | =see also= | ||
| + | |||
| + | [https://www.cnblogs.com/saneri/p/14463509.html K8S 使用deploy部署nginx ] | ||
| + | |||
| + | [[category:k8s]] [[category:devops]] [[category: container]] | ||
2021年8月6日 (五) 13:26的版本
info
k8smaster 192.168.88.70 k8snode1 192.168.88.71 k8snode2192.168.88.72
使用deployment 部署nginx服务
deploy文件如下：
root@k8s-master:~# cat ngdeploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:latest
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: ngx-service
labels:
app: nginx
spec:
type: NodePort
selector:
app: nginx
ports:
- port: 80
targetPort: 80
nodePort: 32500
创建deploy
kubectl apply -f ngdeploy.yaml
查看pod及svc服务
root@k8s-master:~# kubectl get pod,svc
NAME READY STATUS RESTARTS AGE
pod/my-nginx-585449566-6g2rh 1/1 Running 0 3m37s
pod/my-nginx-585449566-9nwgt 1/1 Running 0 3m37s
pod/my-nginx-585449566-ww28p 1/1 Running 0 3m37s
pod/nginx-deployment 1/1 Running 0 10m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 4h38m
service/ngx-service NodePort 10.96.36.220 <none> 80:32500/TCP 3m37s
root@k8s-master:~#
masterip
http://192.168.88.70:32500/
命令行方式创建nginx服务
1）、创建一个nginx的pod 现在我们在kubernetes集群中创建一个nginx的pod，验证是否能正常运行。 在master节点执行一下步骤： [root@k8s-master ~]# kubectl create deployment nginx --image=nginx deployment.apps/nginx created [root@k8s-master ~]# kubectl expose deployment nginx --port=80 --type=NodePort service/nginx exposed 现在我们查看pod和service [root@k8s-master ~]# kubectl get pod,svc -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES pod/nginx-6799fc88d8-9wjjt 1/1 Running 0 33s 10.244.2.4 k8s-node2 <none> <none> NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 4h40m <none> service/nginx NodePort 10.96.172.103 <none> 80:30346/TCP 22s app=nginx service/ngx-service NodePort 10.96.36.220 <none> 80:32500/TCP 6m2s app=nginx root@k8s-master:~# 打印的结果中，前半部分是pod相关信息，后半部分是service相关信息。我们看service/nginx这一行可以看出service暴漏给集群的端口是 32500。记住这个端口。 然后从pod的详细信息可以看出此时pod在node2节点之上。node2节点的IP地址是192.168.88.72
