# K8S Deployment

来自极客时间专栏

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
        - name: nginx
          image: nginx:1.8
          ports:
            - containerPort: 80
          volumeMounts:
            - mountPath: "/usr/share/nginx/html"
              name: nginx-vol
      volumes:
        - name: nginx-vol
          emptyDir: {}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

创建一个nginx deployment

kubectl create -f nginx-deployment.yaml
1

kubectl get命令检查这个 YAML 运行起来的状态

# 查看标签为app=nginx的Pod
$ kubectl get pods -l app=nginx
NAME                                READY     STATUS    RESTARTS   AGE
nginx-deployment-67594d6bf6-9gdvr   1/1       Running   0          10m
nginx-deployment-67594d6bf6-v6j7w   1/1       Running   0          10m
1
2
3
4
5

使用 kubectl describe 命令,查看一个 API 对象的细节

$ kubectl describe pod nginx-deployment-67594d6bf6-9gdvr
Name:               nginx-deployment-67594d6bf6-9gdvr
Namespace:          default
Priority:           0
PriorityClassName:  <none>
Node:               node-1/10.168.0.3
Start Time:         Thu, 16 Aug 2018 08:48:42 +0000
Labels:             app=nginx
                    pod-template-hash=2315082692
Annotations:        <none>
Status:             Running
IP:                 10.32.0.23
Controlled By:      ReplicaSet/nginx-deployment-67594d6bf6
...
Events:

  Type     Reason                  Age                From               Message

  ----     ------                  ----               ----               -------
  
  Normal   Scheduled               1m                 default-scheduler  Successfully assigned default/nginx-deployment-67594d6bf6-9gdvr to node-1
  Normal   Pulling                 25s                kubelet, node-1    pulling image "nginx:1.7.9"
  Normal   Pulled                  17s                kubelet, node-1    Successfully pulled image "nginx:1.7.9"
  Normal   Created                 17s                kubelet, node-1    Created container
  Normal   Started                 17s                kubelet, node-1    Started container
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
上次更新: 5/20/2021, 11:12:30 PM