创建
worker1,2
[root@worker1 ~]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
bf5952930446: Pull complete
cb9a6de05e5a: Pull complete
9513ea0afb93: Pull complete
b49ea07d2e93: Pull complete
a5e4a503d449: Pull complete
Digest: sha256:2850bbf7ed1bcb88e50c08c424c13fec71cf0a0bf0d496b5481601c69f905534
Status: Downloaded newer image for nginx:latest
You have new mail in /var/spool/mail/root
[root@worker1 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
k8s.gcr.io/kube-proxy v1.19.1 33c60812eab8 23 hours ago 118MB
nginx latest 4bb46517cac3 3 weeks ago 133MB
k8s.gcr.io/pause 3.2 80d28bedfe5d 6 months ago 683kB
calico/node v3.9.0 f9d62fb5edb1 12 months ago 190MB
calico/pod2daemon-flexvol v3.9.0 aa79ce3237eb 12 months ago 9.78MB
calico/cni v3.9.0 56c7969ed8e6 12 months ago 160MB
calico/kube-controllers v3.9.0 f5cc48269a09 12 months ago 50.4MB
[root@worker1 ~]#
master
[root@master1 yamldir]# kubectl get pod
No resources found in default namespace.
[root@master1 yamldir]# kubectl get namespace
NAME STATUS AGE
default Active 4h38m
kube-node-lease Active 4h38m
kube-public Active 4h38m
kube-system Active 4h38m
[root@master1 yamldir]# kubectl get pods --namespace default
No resources found in default namespace.
[root@master1 yamldir]# kubectl get pods --n default
Error: unknown flag: --n
See 'kubectl get --help' for usage.
[root@master1 yamldir]# kubectl get pods -n default
No resources found in default namespace.
[root@master1 yamldir]# kubectl get pod -n kube-system
NAME READY STATUS RESTARTS AGE
calico-kube-controllers-64596cf887-6d5mv 1/1 Running 0 3h51m
calico-node-gnhg4 1/1 Running 0 3h47m
calico-node-qn6zt 1/1 Running 0 3h48m
calico-node-x57js 1/1 Running 0 3h51m
coredns-f9fd979d6-h7789 1/1 Running 0 4h40m
coredns-f9fd979d6-lwnnw 1/1 Running 0 4h40m
etcd-master1 1/1 Running 0 4h40m
kube-apiserver-master1 1/1 Running 0 4h40m
kube-controller-manager-master1 1/1 Running 0 3h8m
kube-proxy-g8zzh 1/1 Running 0 4h40m
kube-proxy-pbdz4 1/1 Running 0 3h48m
kube-proxy-z4554 1/1 Running 0 3h47m
kube-scheduler-master1 1/1 Running 0 3h9m
[root@master1 yamldir]# vim 02_create_pod.yaml
You have new mail in /var/spool/mail/root
[root@master1 yamldir]# cat 02_create_pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: pod1
spec:
containers:
- name: nginx-container
image: nginx:latest
imagePullPolicy: IfNotPresent
ports:
- name: nginxport
containerPort: 80
[root@master1 yamldir]# kubectl apply -f 02_create_pod.yaml
pod/pod1 created
[root@master1 yamldir]# kubectl get pods
NAME READY STATUS RESTARTS AGE
pod1 0/1 ContainerCreating 0 10s
[root@master1 yamldir]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod1 1/1 Running 0 102s 172.16.189.65 worker2 <none> <none>
[root@master1 yamldir]#
两种删除
[root@master1 yamldir]# kubectl get pods
NAME READY STATUS RESTARTS AGE
pod1 1/1 Running 0 8m24s
[root@master1 yamldir]# kubectl delete pods pod1 -n default
pod "pod1" deleted
[root@master1 yamldir]# kubectl get pods
No resources found in default namespace.
[root@master1 yamldir]# kubectl apply -f 02_create_pod.yaml
pod/pod1 created
[root@master1 yamldir]# kubectl get pods
NAME READY STATUS RESTARTS AGE
pod1 0/1 ContainerCreating 0 5s
[root@master1 yamldir]# kubectl delete -f 02_create_pod.yaml
pod "pod1" deleted
[root@master1 yamldir]# kubectl get pods
No resources found in default namespace.
[root@master1 yamldir]#
