node-capacity

View the capacity of the current node

Capacity:
  cpu:                4
  ephemeral-storage:  50824704Ki
  hugepages-1Gi:      0
  hugepages-2Mi:      0
  memory:             8123340Ki
  pods:               110

If you want to add a new capacity in the status field above, you must use the patch API

Start proxy

kubectl proxy

Add new capacity

curl --header "Content-Type: application/json-patch+json" \
--request PATCH \
--data '[{"op": "add", "path": "/status/capacity/studyk8s.com~1lizhe", "value": "4"}]' \
http://localhost:8001/api/v1/nodes/k1/status

curl --header "Content-Type: application/json-patch+json" \
--request PATCH \
--data '[{"op": "remove", "path": "/status/capacity/studyk8s.com~1lizhe"}]' \
http://localhost:8001/api/v1/nodes/k1/status

The above code will generate studyk8s com/lizhe: 4

Then it can be used in Dep

        resources:
          limits:
            studyk8s.com/lizhe: 4

So studyk8s COM / Lizhe has become a resource

Because only node1 has such resources and has been exhausted, it is impossible to deploy multiple nodes