1 pod包含多个container
代码语言：javascript复制$ cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
name: myapp-pod
labels:
app: myapp
spec:
containers:
- name: c1
image: quay.io/prometheus/busybox:latest
command: ['sh', '-c', 'echo The c1 is running! && sleep 3600']
- name: c2
image: quay.io/prometheus/busybox:latest
command: ['sh', '-c', 'echo The c2 is running! && sleep 3600']
EOF
$ kgp
NAME READY STATUS RESTARTS AGE
myapp-pod 2/2 Running 0 90s
$ k logs myapp-pod c1
The c1 is running!
$ k logs myapp-pod c2
The c2 is running!2 统计ready节点数量
代码语言：javascript复制$ k get no | grep -w Ready | wc -l
6
$ k describe no | grep -i taints | grep -i nochedule | wc -l
0
$ echo 6 > /opt/nodenum3 调度pod到指定节点
代码语言：javascript复制$ k get no
NAME STATUS ROLES AGE VERSION
ip-10-0-128-182.ec2.internal Ready,SchedulingDisabled master 47h v1.21.1 f36aa36
ip-10-0-129-62.ec2.internal Ready worker 47h v1.21.1 f36aa36
ip-10-0-144-211.ec2.internal Ready worker 47h v1.21.1 f36aa36
ip-10-0-158-94.ec2.internal Ready master 47h v1.21.1 f36aa36
ip-10-0-167-32.ec2.internal Ready worker 47h v1.21.1 f36aa36
ip-10-0-171-215.ec2.internal Ready master 47h v1.21.1 f36aa36
$ k label no ip-10-0-167-32.ec2.internal disktype=ssd
node/ip-10-0-167-32.ec2.internal labeled
$ cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
name: nginx
labels:
env: test
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
nodeSelector:
disktype: ssd
EOF
$ k get po
NAME READY STATUS RESTARTS AGE
myapp-pod 2/2 Running 0 13m
nginx 1/1 Running 0 10s
$ kd po nginx | grep ip-10-0-167-32.ec2.internal
Node: ip-10-0-167-32.ec2.internal/10.0.167.32
Normal Scheduled 27s default-scheduler Successfully assigned ssli/nginx to ip-10-0-167-32.ec2.internalLEo at 12:12
