f61590c221
If CIDRAllocatorType is set to `CloudCIDRAllocator`, then allocation of CIDR allocation instead is done by the external cloud provider and the node controller is only responsible for reflecting the allocation into the node spec. - Splits off the rangeAllocator from the cidr_allocator.go file. - Adds cloudCIDRAllocator, which is used when the cloud provider allocates the CIDR ranges externally. (GCE support only) - Updates RBAC permission for node controller to include PATCH
52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
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 node
|
|
|
|
import (
|
|
"errors"
|
|
"net"
|
|
|
|
v1 "k8s.io/kubernetes/pkg/api/v1"
|
|
)
|
|
|
|
var errCIDRRangeNoCIDRsRemaining = errors.New(
|
|
"CIDR allocation failed; there are no remaining CIDRs left to allocate in the accepted range")
|
|
|
|
type nodeAndCIDR struct {
|
|
cidr *net.IPNet
|
|
nodeName string
|
|
}
|
|
|
|
// CIDRAllocatorType is the type of the allocator to use.
|
|
type CIDRAllocatorType string
|
|
|
|
const (
|
|
RangeAllocatorType CIDRAllocatorType = "RangeAllocator"
|
|
CloudAllocatorType CIDRAllocatorType = "CloudAllocator"
|
|
)
|
|
|
|
// CIDRAllocator is an interface implemented by things that know how to
|
|
// allocate/occupy/recycle CIDR for nodes.
|
|
type CIDRAllocator interface {
|
|
// AllocateOrOccupyCIDR looks at the given node, assigns it a valid
|
|
// CIDR if it doesn't currently have one or mark the CIDR as used if
|
|
// the node already have one.
|
|
AllocateOrOccupyCIDR(node *v1.Node) error
|
|
// ReleaseCIDR releases the CIDR of the removed node
|
|
ReleaseCIDR(node *v1.Node) error
|
|
}
|