kubesphere.io/api@v0.0.0-20231107125330-c9a03957060c/network/calicov3/ippool_types.go (about)

     1  // Copyright (c) 2017-2020 Tigera, Inc. All rights reserved.
     2  
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package calicov3
    16  
    17  import (
    18  	cnet "github.com/projectcalico/calico/libcalico-go/lib/net"
    19  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    20  
    21  	v3 "github.com/projectcalico/api/pkg/apis/projectcalico/v3"
    22  )
    23  
    24  // +genclient
    25  // +kubebuilder:object:root=true
    26  // +genclient:nonNamespaced
    27  // +k8s:openapi-gen=true
    28  // +kubebuilder:resource:scope=Cluster
    29  type IPPool struct {
    30  	metav1.TypeMeta   `json:",inline"`
    31  	metav1.ObjectMeta `json:"metadata,omitempty"`
    32  	Spec              v3.IPPoolSpec `json:"spec,omitempty"`
    33  }
    34  
    35  // +kubebuilder:object:root=true
    36  
    37  // IPPoolList contains a list of IPPool resources.
    38  type IPPoolList struct {
    39  	metav1.TypeMeta `json:",inline"`
    40  	metav1.ListMeta `json:"metadata"`
    41  	Items           []IPPool `json:"items"`
    42  }
    43  
    44  func (p IPPool) NumAddresses() int {
    45  	_, cidr, _ := cnet.ParseCIDR(p.Spec.CIDR)
    46  	ones, size := cidr.Mask.Size()
    47  	numAddresses := 1 << uint(size-ones)
    48  	return numAddresses
    49  }