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k8s.go
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k8s.go
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/*
Copyright 2021 Terway 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 types
import (
"fmt"
"strconv"
corev1 "k8s.io/api/core/v1"
)
// AnnotationPrefix is the annotation prefix
const AnnotationPrefix = "k8s.aliyun.com/"
const LabelPrefix = "k8s.aliyun.com/"
// annotations used by terway
const (
// TrunkOn is the key for eni
TrunkOn = AnnotationPrefix + "trunk-on"
// PodENI whether pod is using podENI cr resource
PodENI = AnnotationPrefix + "pod-eni"
PodNetworking = AnnotationPrefix + "pod-networking"
// PodIPReservation whether pod's IP will be reserved for a reuse
PodIPReservation = AnnotationPrefix + "pod-ip-reservation"
// PodNetworks for additional net config
PodNetworks = AnnotationPrefix + "pod-networks"
// PodAllocType for additional net config
PodAllocType = AnnotationPrefix + "pod-alloc-type"
// PodENIAllocated pod annotation for allocated eni
PodENIAllocated = AnnotationPrefix + "allocated"
// PodUID store pod uid
PodUID = AnnotationPrefix + "pod-uid"
// NetworkPriority set pod network priority
NetworkPriority = AnnotationPrefix + "network-priority"
ENIAllocFromPool = AnnotationPrefix + "eni-alloc-from-pool"
ENIRelatedNodeName = AnnotationPrefix + "node"
PodIPs = AnnotationPrefix + "pod-ips"
// IgnoreByTerway if the label exist , terway will not handle this kind of res
IgnoreByTerway = LabelPrefix + "ignore-by-terway"
)
// FinalizerPodENI finalizer for podENI resource
const FinalizerPodENI = "pod-eni"
// events for control plane
const (
EventCreateENISucceed = "CreateENISucceed"
EventCreateENIFailed = "CreateENIFailed"
EventAttachENISucceed = "AttachENISucceed"
EventAttachENIFailed = "AttachENIFailed"
EventDetachENISucceed = "DetachENISucceed"
EventDetachENIFailed = "DetachENIFailed"
EventDeleteENISucceed = "DeleteENISucceed"
EventDeleteENIFailed = "DeleteENIFailed"
EventUpdatePodENIFailed = "UpdatePodENIFailed"
EventSyncPodNetworkingSucceed = "SyncPodNetworkingSucceed"
EventSyncPodNetworkingFailed = "SyncPodNetworkingFailed"
)
// PodUseENI whether pod is use podENI cr res
func PodUseENI(pod *corev1.Pod) bool {
key, ok := pod.GetAnnotations()[PodENI]
if !ok {
return false
}
v, err := strconv.ParseBool(key)
if err != nil {
return false
}
return v
}
// IgnoredByTerway for both pods and nodes
func IgnoredByTerway(labels map[string]string) bool {
return labels[IgnoreByTerway] == "true"
}
// NetworkPrio network priority for pod
type NetworkPrio string
// NetworkPrio val
const (
NetworkPrioBestEffort NetworkPrio = "best-effort"
NetworkPrioBurstable NetworkPrio = "burstable"
NetworkPrioGuaranteed NetworkPrio = "guaranteed"
)
// PodIPTypeIPs Pod IP address type
type PodIPTypeIPs string
// PodIPTypeIPs val
const (
NormalIPTypeIPs PodIPTypeIPs = AnnotationPrefix + "max-available-ip"
MemberENIIPTypeIPs PodIPTypeIPs = AnnotationPrefix + "max-member-eni-ip"
ERDMAIPTypeIPs PodIPTypeIPs = AnnotationPrefix + "max-erdma-ip"
)
// SufficientIPCondition definitions
const (
SufficientIPCondition corev1.NodeConditionType = "SufficientIP"
IPResInsufficientReason string = "InsufficientIP"
IPResSufficientReason string = "SufficientIP"
)
type IPInsufficientError struct {
Err error
Reason string
}
func (e *IPInsufficientError) Error() string {
return fmt.Sprintf("ip insufficient error: %v with reason: %s", e.Err, e.Reason)
}