When deleting agent-0, we can observe the issue of being out of resources. Only one node is available, but that node is out of disk space:
0s 1m 13 redis-slave-b58dc4644-lqkdp.1574e88a78913f1a Pod Warning FailedScheduling default-scheduler 0/2 nodes are available: 1 Insufficient cpu, 1 node(s) were not ready, 1 node(s) were out of disk space.
To confirm this, run the following command:
kc get pods
When you run the command, you will get the following output:
redis-slave-b58dc4644-tcl2x 0/1 Pending 0 4hredis-slave-b58dc4644-wtkwj 1/1 Unknown 0 6hredis-slave-b58dc4644-xtdkx 1/1 Unknown 1 20h