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block_affinity.go
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/
block_affinity.go
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// Copyright (c) 2016-2019 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 model
import (
"fmt"
"reflect"
"regexp"
"strings"
log "github.com/sirupsen/logrus"
"github.com/dtest11/calico/libcalico-go/lib/errors"
"github.com/dtest11/calico/libcalico-go/lib/net"
)
var (
matchBlockAffinity = regexp.MustCompile("^/?calico/ipam/v2/host/([^/]+)/ipv./block/([^/]+)$")
typeBlockAff = reflect.TypeOf(BlockAffinity{})
)
type BlockAffinityState string
const (
StateConfirmed BlockAffinityState = "confirmed"
StatePending BlockAffinityState = "pending"
StatePendingDeletion BlockAffinityState = "pendingDeletion"
)
type BlockAffinityKey struct {
CIDR net.IPNet `json:"-" validate:"required,name"`
Host string `json:"-"`
}
type BlockAffinity struct {
State BlockAffinityState `json:"state"`
Deleted bool `json:"deleted"`
}
func (key BlockAffinityKey) defaultPath() (string, error) {
if key.CIDR.IP == nil || key.Host == "" {
return "", errors.ErrorInsufficientIdentifiers{}
}
c := strings.Replace(key.CIDR.String(), "/", "-", 1)
e := fmt.Sprintf("/calico/ipam/v2/host/%s/ipv%d/block/%s", key.Host, key.CIDR.Version(), c)
return e, nil
}
func (key BlockAffinityKey) defaultDeletePath() (string, error) {
return key.defaultPath()
}
func (key BlockAffinityKey) defaultDeleteParentPaths() ([]string, error) {
return nil, nil
}
func (key BlockAffinityKey) valueType() (reflect.Type, error) {
return typeBlockAff, nil
}
func (key BlockAffinityKey) String() string {
return fmt.Sprintf("BlockAffinityKey(cidr=%s, host=%s)", key.CIDR, key.Host)
}
type BlockAffinityListOptions struct {
Host string
IPVersion int
}
func (options BlockAffinityListOptions) defaultPathRoot() string {
k := "/calico/ipam/v2/host/"
if options.Host != "" {
k = k + options.Host
if options.IPVersion != 0 {
k = k + fmt.Sprintf("/ipv%d/block", options.IPVersion)
}
}
return k
}
func (options BlockAffinityListOptions) KeyFromDefaultPath(path string) Key {
log.Debugf("Get Block affinity key from %s", path)
r := matchBlockAffinity.FindAllStringSubmatch(path, -1)
if len(r) != 1 {
log.Debugf("%s didn't match regex", path)
return nil
}
cidrStr := strings.Replace(r[0][2], "-", "/", 1)
_, cidr, _ := net.ParseCIDR(cidrStr)
if cidr == nil {
log.Debugf("Failed to parse CIDR in block affinity path: %q", path)
return nil
}
host := r[0][1]
if options.Host != "" && options.Host != host {
log.Debugf("Didn't match hostname: %s != %s", options.Host, host)
return nil
}
if options.IPVersion != 0 && options.IPVersion != cidr.Version() {
log.Debugf("Didn't match IP version. %d != %d", options.IPVersion, cidr.Version())
return nil
}
return BlockAffinityKey{CIDR: *cidr, Host: host}
}