curl命令更新k8s cr status

因为status是cr的subresource，所以不支持使用kubectl直接更新cr status，一般由controller来更新status。
在KubeBuilder框架中，使用xxx.Status().Update(xxx)方式来更新status。

创建crd和cr

cat <<EOF | kubectl create -f -
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  name: fruits.crd.io
spec:
  group: crd.io
  versions:
    - name: v1
      served: true
      storage: true
      schema:
        openAPIV3Schema:
          type: object
          properties:
            spec:
              type: object
              properties:
                location:
                  type: string
            status:
              type: object
              properties:
                enable:
                  type: boolean
  scope: Cluster
  names:
    plural: fruits
    singular: fruit
kind: Fruit
EOF

cat <<EOF | kubectl create -f -
apiVersion: crd.io/v1
kind: Fruit
metadata:
  name: apple
spec:
  location: "beijing"
EOF

修改cluster粒度cr status

kubectl proxy &
crName=apple
crResourceVersion=`kubectl get fruit $crName -o jsonpath='{.metadata.resourceVersion}'`
json="{\"apiVersion\": \"crd.io/v1\", \"kind\": \"Fruit\", \"metadata\": {\"name\": \"$crName\", \"resourceVersion\": \"$crResourceVersion\"}, \"status\": {\"enable\": true}}"
curl -H "Content-Type: application/json" -X PUT -d "$json" http://127.0.0.1:8001/apis/crd.io/v1/fruits/$crName
kill `ps -ef | grep 'kubectl proxy' | grep -v grep | awk '{print $2}'`