[root@hdss7-21 ~]# kubectl get pods -n app --show-labels -l tier # 包含tier的pod
NAME READY STATUS RESTARTS AGE LABELS
pod-01 1/1 Running 0 45m app=nginx,release=connary,tier=frontend,version=v1.12
[root@hdss7-21 ~]# kubectl get pods -n app --show-labels -l "! tier" # 不包含tier的pod
NAME READY STATUS RESTARTS AGE LABELS
pod-02 1/1 Running 2 2d1h app=nginx,release=stable,version=v1.12
pod-03 1/1 Running 0 48m app=nginx,release=alpha,version=v1.12
pod-04 1/1 Running 0 47m app=nginx,release=stable,version=v1.13
[root@hdss7-21 ~]# kubectl get pods -n app --show-labels -l "release in (alpha,connary)" # 版本为alpha和connary的pod
NAME READY STATUS RESTARTS AGE LABELS
pod-01 1/1 Running 0 47m app=nginx,release=connary,tier=frontend,version=v1.12
pod-03 1/1 Running 0 50m app=nginx,release=alpha,version=v1.12
[root@hdss7-21 ~]# kubectl get pods -n app --show-labels -l "tier notin (backend,frontend)" # 不是前后端的pod
NAME READY STATUS RESTARTS AGE LABELS
pod-02 1/1 Running 2 2d1h app=nginx,release=stable,version=v1.12
pod-03 1/1 Running 0 52m app=nginx,release=alpha,version=v1.12
pod-04 1/1 Running 0 51m app=nginx,release=stable,version=v1.13