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runtime.go
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runtime.go
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/*
Copyright 2015 The Kubernetes Authors 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 kubelet
import (
"fmt"
"sync"
"time"
)
type runtimeState struct {
sync.Mutex
lastBaseRuntimeSync time.Time
baseRuntimeSyncThreshold time.Duration
networkError error
internalError error
cidr string
initError error
}
func (s *runtimeState) setRuntimeSync(t time.Time) {
s.Lock()
defer s.Unlock()
s.lastBaseRuntimeSync = t
}
func (s *runtimeState) setInternalError(err error) {
s.Lock()
defer s.Unlock()
s.internalError = err
}
func (s *runtimeState) setNetworkState(err error) {
s.Lock()
defer s.Unlock()
s.networkError = err
}
func (s *runtimeState) setPodCIDR(cidr string) {
s.Lock()
defer s.Unlock()
s.cidr = cidr
}
func (s *runtimeState) podCIDR() string {
s.Lock()
defer s.Unlock()
return s.cidr
}
func (s *runtimeState) setInitError(err error) {
s.Lock()
defer s.Unlock()
s.initError = err
}
func (s *runtimeState) errors() []string {
s.Lock()
defer s.Unlock()
var ret []string
if s.initError != nil {
ret = append(ret, s.initError.Error())
}
if s.networkError != nil {
ret = append(ret, s.networkError.Error())
}
if !s.lastBaseRuntimeSync.Add(s.baseRuntimeSyncThreshold).After(time.Now()) {
ret = append(ret, "container runtime is down")
}
if s.internalError != nil {
ret = append(ret, s.internalError.Error())
}
return ret
}
func newRuntimeState(
runtimeSyncThreshold time.Duration,
configureNetwork bool,
) *runtimeState {
var networkError error = nil
if configureNetwork {
networkError = fmt.Errorf("network state unknown")
}
return &runtimeState{
lastBaseRuntimeSync: time.Time{},
baseRuntimeSyncThreshold: runtimeSyncThreshold,
networkError: networkError,
internalError: nil,
}
}