2.3.1. 创建deployment-Kubernets合辑5-Pod控制器

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/data/k8s-yaml/base_resource/deployment/nginx-v1.12.yaml:

```
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deploy
  namespace: app
spec:
  replicas: 5
  selector:
    matchLabels:
      app: nginx
      release: stable
      tier: slb
      partition: website
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  template:
    metadata:
      labels:
        app: nginx
        release: stable
        tier: slb
        partition: website
        version: v1.12
    spec:
      containers:
      - name: nginx-pod
        image: harbor.od.com/public/nginx:v1.12
        lifecycle:
          postStart:
            exec:
              command:
                - /bin/bash
                - -c
                - "echo 'health check ok!' > /usr/share/nginx/html/health.html"
        readinessProbe: 
          initialDelaySeconds: 5
          httpGet:
            port: 80
            path: /health.html
        livenessProbe:
          initialDelaySeconds: 10
          periodSeconds: 5
          httpGet:
            port: 80
            path: /health.html

```

```
[root@hdss7-21 ~]# kubectl apply -f http://k8s-yaml.od.com/base_resource/deployment/nginx-v1.12.yaml --record

[root@hdss7-21 ~]# kubectl get pods -n app -l partition=website  # 查看
NAME                           READY   STATUS    RESTARTS   AGE
nginx-deploy-5597c8b45-425ms   1/1     Running   0          5m12s
nginx-deploy-5597c8b45-5p2rz   1/1     Running   0          9m34s
nginx-deploy-5597c8b45-dw7hd   1/1     Running   0          9m34s
nginx-deploy-5597c8b45-fg82k   1/1     Running   0          5m12s
nginx-deploy-5597c8b45-sfxmg   1/1     Running   0          9m34s
[root@hdss7-21 ~]# kubectl get rs -n app -l partition=website -o wide
NAME                     DESIRED   CURRENT   READY   AGE   CONTAINERS   IMAGES                             SELECTOR
nginx-deploy-5597c8b45   8         8         8       10m   nginx-pod    harbor.od.com/public/nginx:v1.12   app=nginx,partition=website,pod-template-hash=5597c8b45,release=stable,tier=slb
[root@hdss7-21 ~]# kubectl get deployment -n app -o wide
NAME           READY   UP-TO-DATE   AVAILABLE   AGE   CONTAINERS   IMAGES                             SELECTOR
nginx-deploy   8/8     8            8           11m   nginx-pod    harbor.od.com/public/nginx:v1.12   app=nginx,partition=website,release=stable,tier=slb
```

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