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vendor/github.com/projectcalico/libcalico-go/lib/apis/v3/ippool.go

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