get¶
创建一个deployment和service¶
[root@k8s1 ~]# kubectl run nginx-deploy --image=nginx:1.14-alpine --port=80 --replicas=2 -n poppy
deployment.apps/nginx-deploy created
[root@k8s1 ~]# kubectl expose deployment nginx-deploy --name=nginx --port=8000 --target-port=80 --protocol=TCP -n poppy
service/nginx exposed
查看service,deployment和pod¶
这里我用简称查询
[root@k8s1 ~]# kubectl get svc,deploy,po -n poppy
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/nginx ClusterIP 10.103.107.199 <none> 8000/TCP 33s
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
deployment.extensions/nginx-deploy 2 2 2 2 46s
NAME READY STATUS RESTARTS AGE
pod/nginx-deploy-5b595999-g8txz 1/1 Running 0 46s
pod/nginx-deploy-5b595999-tmpsp 1/1 Running 0 46s
-o wide 查看更信息，包括IP和所在节点，¶
[root@k8s1 ~]# kubectl get pod -n poppy -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
nginx-deploy-5b595999-g8txz 1/1 Running 0 3h 10.244.1.13 k8s2.shenmin.com <none>
nginx-deploy-5b595999-tmpsp 1/1 Running 0 3h 10.244.2.12 k8s3.shenmin.com <none>
-o yaml 查看yaml文件¶
[root@k8s1 ~]# kubectl get pod -n poppy -o yaml
apiVersion: v1
items:
- apiVersion: v1
kind: Pod
metadata:
creationTimestamp: 2018-08-28T05:23:02Z
generateName: nginx-deploy-5b595999-
labels:
pod-template-hash: "16151555"
run: nginx-deploy
name: nginx-deploy-5b595999-g8txz
namespace: poppy
ownerReferences:
- apiVersion: apps/v1
blockOwnerDeletion: true
controller: true
kind: ReplicaSet
name: nginx-deploy-5b595999
uid: 6f33424b-aa82-11e8-9d8a-5254006eb43c
resourceVersion: "128935"
selfLink: /api/v1/namespaces/poppy/pods/nginx-deploy-5b595999-g8txz
uid: 6f354266-aa82-11e8-9d8a-5254006eb43c
spec:
containers:
- image: nginx:1.14-alpine
imagePullPolicy: IfNotPresent
name: nginx-deploy
ports:
- containerPort: 80
protocol: TCP
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: default-token-nnvxp
readOnly: true
dnsPolicy: ClusterFirst
nodeName: k8s2.shenmin.com
priority: 0
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}
serviceAccount: default
serviceAccountName: default
terminationGracePeriodSeconds: 30
tolerations:
- effect: NoExecute
key: node.kubernetes.io/not-ready
operator: Exists
tolerationSeconds: 300
- effect: NoExecute
key: node.kubernetes.io/unreachable
operator: Exists
tolerationSeconds: 300
volumes:
- name: default-token-nnvxp
secret:
defaultMode: 420
secretName: default-token-nnvxp
status:
conditions:
- lastProbeTime: null
lastTransitionTime: 2018-08-28T05:23:02Z
status: "True"
type: Initialized
- lastProbeTime: null
lastTransitionTime: 2018-08-28T05:23:02Z
status: "True"
type: Ready
- lastProbeTime: null
lastTransitionTime: null
status: "True"
type: ContainersReady
- lastProbeTime: null
lastTransitionTime: 2018-08-28T05:23:02Z
status: "True"
type: PodScheduled
containerStatuses:
- containerID: docker://ce781f2c9c844b540540258248b63e387ec2c8d005416ee86487882522a5da86
image: nginx:1.14-alpine
imageID: docker-pullable://nginx@sha256:3d36a2c9513a5aa6aa6c41b076201d468bdb94c4f2b4c6e55d32a461ac8f00ee
lastState: {}
name: nginx-deploy
ready: true
restartCount: 0
state:
running:
startedAt: 2018-08-28T05:23:02Z
hostIP: 192.168.1.52
phase: Running
podIP: 10.244.1.13
qosClass: BestEffort
startTime: 2018-08-28T05:23:02Z
- apiVersion: v1
kind: Pod
metadata:
creationTimestamp: 2018-08-28T05:23:02Z
generateName: nginx-deploy-5b595999-
labels:
pod-template-hash: "16151555"
run: nginx-deploy
name: nginx-deploy-5b595999-tmpsp
namespace: poppy
ownerReferences:
- apiVersion: apps/v1
blockOwnerDeletion: true
controller: true
kind: ReplicaSet
name: nginx-deploy-5b595999
uid: 6f33424b-aa82-11e8-9d8a-5254006eb43c
resourceVersion: "128940"
selfLink: /api/v1/namespaces/poppy/pods/nginx-deploy-5b595999-tmpsp
uid: 6f368317-aa82-11e8-9d8a-5254006eb43c
spec:
containers:
- image: nginx:1.14-alpine
imagePullPolicy: IfNotPresent
name: nginx-deploy
ports:
- containerPort: 80
protocol: TCP
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: default-token-nnvxp
readOnly: true
dnsPolicy: ClusterFirst
nodeName: k8s3.shenmin.com
priority: 0
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}
serviceAccount: default
serviceAccountName: default
terminationGracePeriodSeconds: 30
tolerations:
- effect: NoExecute
key: node.kubernetes.io/not-ready
operator: Exists
tolerationSeconds: 300
- effect: NoExecute
key: node.kubernetes.io/unreachable
operator: Exists
tolerationSeconds: 300
volumes:
- name: default-token-nnvxp
secret:
defaultMode: 420
secretName: default-token-nnvxp
status:
conditions:
- lastProbeTime: null
lastTransitionTime: 2018-08-28T05:23:02Z
status: "True"
type: Initialized
- lastProbeTime: null
lastTransitionTime: 2018-08-28T05:23:03Z
status: "True"
type: Ready
- lastProbeTime: null
lastTransitionTime: null
status: "True"
type: ContainersReady
- lastProbeTime: null
lastTransitionTime: 2018-08-28T05:23:02Z
status: "True"
type: PodScheduled
containerStatuses:
- containerID: docker://43a8c4467bba2ac5b9f0605730d1c08ffa25ace63b012cedc48a96b810eeeb50
image: nginx:1.14-alpine
imageID: docker-pullable://nginx@sha256:3d36a2c9513a5aa6aa6c41b076201d468bdb94c4f2b4c6e55d32a461ac8f00ee
lastState: {}
name: nginx-deploy
ready: true
restartCount: 0
state:
running:
startedAt: 2018-08-28T05:23:02Z
hostIP: 192.168.1.53
phase: Running
podIP: 10.244.2.12
qosClass: BestEffort
startTime: 2018-08-28T05:23:02Z
kind: List
metadata:
resourceVersion: ""
selfLink: ""
[root@k8s1 ~]#
–show-labels 查看标签¶
[root@k8s1 ~]# kubectl get pod -n poppy -o wide --show-labels
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE LABELS
nginx-deploy-5b595999-g8txz 1/1 Running 0 3h 10.244.1.13 k8s2.shenmin.com <none> pod-template-hash=16151555,run=nginx-deploy
nginx-deploy-5b595999-tmpsp 1/1 Running 0 3h 10.244.2.12 k8s3.shenmin.com <none> pod-template-hash=16151555,run=nginx-deploy
指定标签查看pod¶
[root@k8s1 ~]# kubectl get pod -n poppy -l run=nginx-deploy
NAME READY STATUS RESTARTS AGE
nginx-deploy-5b595999-g8txz 1/1 Running 0 3h
nginx-deploy-5b595999-tmpsp 1/1 Running 0 3h