# 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: {}
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创建一个nginx deployment
kubectl create -f nginx-deployment.yaml
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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
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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
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