138 lines
4.5 KiB
Go
138 lines
4.5 KiB
Go
// Copyright (c) 2017 Tigera, Inc. All rights reserved.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v3
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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apiv1 "github.com/projectcalico/libcalico-go/lib/apis/v1"
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"github.com/projectcalico/libcalico-go/lib/selector"
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)
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const (
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KindIPPool = "IPPool"
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KindIPPoolList = "IPPoolList"
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)
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// +genclient
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// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
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// IPPool contains information about a IPPool resource.
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type IPPool struct {
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metav1.TypeMeta `json:",inline"`
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// Standard object's metadata.
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metav1.ObjectMeta `json:"metadata,omitempty"`
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// Specification of the IPPool.
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Spec IPPoolSpec `json:"spec,omitempty"`
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}
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// IPPoolSpec contains the specification for an IPPool resource.
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type IPPoolSpec struct {
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// The pool CIDR.
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CIDR string `json:"cidr" validate:"net"`
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// Contains configuration for VXLAN tunneling for this pool. If not specified,
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// then this is defaulted to "Never" (i.e. VXLAN tunelling is disabled).
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VXLANMode VXLANMode `json:"vxlanMode,omitempty" validate:"omitempty,vxlanMode"`
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// Contains configuration for IPIP tunneling for this pool. If not specified,
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// then this is defaulted to "Never" (i.e. IPIP tunelling is disabled).
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IPIPMode IPIPMode `json:"ipipMode,omitempty" validate:"omitempty,ipIpMode"`
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// When nat-outgoing is true, packets sent from Calico networked containers in
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// this pool to destinations outside of this pool will be masqueraded.
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NATOutgoing bool `json:"natOutgoing,omitempty"`
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// When disabled is true, Calico IPAM will not assign addresses from this pool.
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Disabled bool `json:"disabled,omitempty"`
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// The block size to use for IP address assignments from this pool. Defaults to 26 for IPv4 and 112 for IPv6.
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BlockSize int `json:"blockSize,omitempty"`
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// Allows IPPool to allocate for a specific node by label selector.
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NodeSelector string `json:"nodeSelector,omitempty" validate:"omitempty,selector"`
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// Deprecated: this field is only used for APIv1 backwards compatibility.
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// Setting this field is not allowed, this field is for internal use only.
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IPIP *apiv1.IPIPConfiguration `json:"ipip,omitempty" validate:"omitempty,mustBeNil"`
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// Deprecated: this field is only used for APIv1 backwards compatibility.
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// Setting this field is not allowed, this field is for internal use only.
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NATOutgoingV1 bool `json:"nat-outgoing,omitempty" validate:"omitempty,mustBeFalse"`
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}
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// SelectsNode determines whether or not the IPPool's nodeSelector
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// matches the labels on the given node.
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func (pool IPPool) SelectsNode(n Node) (bool, error) {
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// No node selector means that the pool matches the node.
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if len(pool.Spec.NodeSelector) == 0 {
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return true, nil
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}
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// Check for valid selector syntax.
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sel, err := selector.Parse(pool.Spec.NodeSelector)
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if err != nil {
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return false, err
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}
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// Return whether or not the selector matches.
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return sel.Evaluate(n.Labels), nil
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}
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type VXLANMode string
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const (
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VXLANModeNever VXLANMode = "Never"
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VXLANModeAlways = "Always"
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VXLANModeCrossSubnet = "CrossSubnet"
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)
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type IPIPMode string
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const (
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IPIPModeNever IPIPMode = "Never"
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IPIPModeAlways = "Always"
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IPIPModeCrossSubnet = "CrossSubnet"
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)
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// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
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// IPPoolList contains a list of IPPool resources.
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type IPPoolList struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ListMeta `json:"metadata"`
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Items []IPPool `json:"items"`
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}
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// NewIPPool creates a new (zeroed) IPPool struct with the TypeMetadata initialised to the current
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// version.
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func NewIPPool() *IPPool {
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return &IPPool{
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TypeMeta: metav1.TypeMeta{
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Kind: KindIPPool,
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APIVersion: GroupVersionCurrent,
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},
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}
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}
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// NewIPPoolList creates a new (zeroed) IPPoolList struct with the TypeMetadata initialised to the current
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// version.
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func NewIPPoolList() *IPPoolList {
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return &IPPoolList{
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TypeMeta: metav1.TypeMeta{
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Kind: KindIPPoolList,
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APIVersion: GroupVersionCurrent,
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},
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}
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}
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