Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling <unknown> default-scheduler 0/3 nodes are available: 1 Insufficient memory, 3 node(s) didn't match node selector.
Warning FailedScheduling <unknown> default-scheduler 0/3 nodes are available: 1 Insufficient memory, 3 node(s) didn't match node selector.
此次原因：在prometheus-blackbox-exporter部署时，使用了nodeSelector,找不到对应label的node
解决方法：修改deploy中nodeSelector或者给node加上label