环境
- kubernetes 1.20.4
- Spring Boot 2.5.0-M3
目标
查看 Deployment 中的一些字段。
示例
Deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: busybox
spec:
selector:
matchLabels:
app: busybox
replicas: 4
template:
metadata:
labels:
app: busybox
spec:
terminationGracePeriodSeconds: 5
containers:
- name: busybox
image: busybox:1.30.0
command: ["/bin/sh", "-c", "sleep 3600"]
查看
[root@master docker]# kubectl describe deployments.apps busybox
Name: busybox
Namespace: default
CreationTimestamp: Tue, 30 Mar 2021 21:41:46 +0800
Labels: <none>
Annotations: deployment.kubernetes.io/revision: 1
Selector: app=busybox
Replicas: 4 desired | 4 updated | 4 total | 0 available | 4 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 25% max unavailable, 25% max surge
Pod Template:
Labels: app=busybox
Containers:
busybox:
Image: busybox:1.30.0
Port: <none>
Host Port: <none>
Command:
/bin/sh
-c
sleep 3600
Environment: <none>
Mounts: <none>
Volumes: <none>
Conditions:
Type Status Reason
---- ------ ------
Available False MinimumReplicasUnavailable
Progressing True ReplicaSetUpdated
OldReplicaSets: <none>
NewReplicaSet: busybox-6bd65c67cf (4/4 replicas created)
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal ScalingReplicaSet 3s deployment-controller Scaled up replica set busybox-6bd65c67cf to 4
Name,Selector 等字段都已经很熟悉了;Replicas 字段和之前的有点不一样,加入了状态。
升级相关的字段之后学习;Pod Template 字段里的都学习过;Conditions 后面学习。
总结
查看 Deployment 中的一些字段。