root@ubuntu:~/etcd-v3.5.0-linux-arm64# ETCDCTL_API=3 ./etcdctl --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/peer.crt --key /etc/kubernetes/pki/etcd/peer.key get --prefix /registry /registry/apiextensions.k8s.io/customresourcedefinitions/bgpconfigurations.crd.projectcalico.org {"kind":"CustomResourceDefinition","apiVersion":"apiextensions.k8s.io/v1beta1","metadata":{"name":"bgpconfigurations.crd.projectcalico.org","uid":"5c73afb2-58ac-4ba0-a8c0-91cf472c3538","generation":1,"creationTimestamp":"2021-06-18T11:17:28Z","annotations":{"kubectl.kubernetes.io/last-applied-configuration":"{"apiVersion":"apiextensions.k8s.io/v1","kind":"CustomResourceDefinition","metadata":{"annotations":{},"name":"bgpconfigurations.crd.projectcalico.org"},"spec":{"group":"crd.projectcalico.org","names":{"kind":"BGPConfiguration","listKind":"BGPConfigurationList","plural":"bgpconfigurations","singular":"bgpconfiguration"},"scope":"Cluster","versions":[{"name":"v1","schema":{"openAPIV3Schema":{"description":"BGPConfiguration contains the configuration for any BGP routing.","properties":{"apiVersion":{"description":"APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources","type":"string"},"kind":{"description":"Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds","type":"string"},"metadata":{"type":"object"},"spec":{"description":"BGPConfigurationSpec contains the values of the BGP configuration.","properties":{"asNumber":{"description":"ASNumber is the default AS number used by a node. [Default: 64512]","format":"int32","type":"integer"},"communities":{"description":"Communities is a list of BGP community values and their arbitrary names for tagging routes.","items":{"description":"Community contains standard or large community value and its name.","properties":{"name":{"description":"Name given to community value.","type":"string"},"value":{"description":"Value must be of format `aa:nn` or `aa:nn:mm`. For standard community use `aa:nn` format, where `aa` and `nn` are 16 bit number. For large community use `aa:nn:mm` format, where `aa`, `nn` and `mm` are 32 bit number. Where, `aa` is an AS Number, `nn` and `mm` are per-AS identifier.","pattern":"^(\\d+):(\\d+)$|^(\\d+):(\\d+):(\\d+)$","type":"string"}},"type":"object"},"type":"array"},"listenPort":{"description":"ListenPort is the port where BGP protocol should listen. Defaults to 179","maximum":65535,"minimum":1,"type":"integer"},"logSeverityScreen":{"description":"LogSeverityScreen is the log severity above which logs are sent to the stdout. [Default: INFO]","type":"string"},"nodeToNodeMeshEnabled":{"description":"NodeToNodeMeshEnabled sets whether full node to node BGP mesh is enabled. [Default: true]","type":"boolean"},"prefixAdvertisements":{"description":"PrefixAdvertisements contains per-prefix advertisement configuration.","items":{"description":"PrefixAdvertisement configures advertisement properties for the specified CIDR.","properties":{"cidr":{"description":"CIDR for which properties should be advertised.","type":"string"},"communities":{"description":"Communities can be list of either community names already defined in `Specs.Communities` or community value of format `aa:nn` or `aa:nn:mm`. For standard community use `aa:nn` format, where `aa` and `nn` are 16 bit number. For large community use `aa:nn:mm` format, where `aa`, `nn` and `mm` are 32 bit number. Where,`aa` is an AS Number, `nn` and `mm` are per-AS identifier.","items":{"type":"string"},"type":"array"}},"type":"object"},"type":"array"},"serviceClusterIPs":{"description":"ServiceClusterIPs are the CIDR blocks from which service cluster IPs are allocated. If specified, Calico will advertise these blocks, as well as any cluster IPs within them.","items":{"description":"ServiceClusterIPBlock represents a single allowed ClusterIP CIDR block.","properties":{"cidr":{"type":"string"}},"type":"object"},"type":"array"},"serviceExternalIPs":{"description":"ServiceExternalIPs are the CIDR blocks for Kubernetes Service External IPs. Kubernetes Service ExternalIPs will only be advertised if they are within one of these blocks.","items":{"description":"ServiceExternalIPBlock represents a single allowed External IP CIDR block.","properties":{"cidr":{"type":"string"}},"type":"object"},"type":"array"},"serviceLoadBalancerIPs":{"description":"ServiceLoadBalancerIPs are the CIDR blocks for Kubernetes Service LoadBalancer IPs. Kubernetes Service status.LoadBalancer.Ingress IPs will only be advertised if they are within one of these blocks.","items":{"description":"ServiceLoadBalancerIPBlock represents a single allowed LoadBalancer IP CIDR block.","properties":{"cidr":{"type":"string"}},"type":"object"},"type":"array"}},"type":"object"}},"type":"object"}},"served":true,"storage":true}]},"status":{"acceptedNames":{"kind":"","plural":""},"conditions":[],"storedVersions":[]}} "},"managedFields":[{"manager":"kube-apiserver","operation":"Update","apiVersion":"apiextensions.k8s.io/v1","time":"2021-06-18T11:17:28Z","fieldsType":"FieldsV1","fieldsV1":{"f:status":{"f:acceptedNames":
https://zhuanlan.zhihu.com/p/47228920