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healthcheck.go
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healthcheck.go
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/*
* Tencent is pleased to support the open source community by making Blueking Container Service available.
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed under the MIT License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
* http://opensource.org/licenses/MIT
* 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 healthcheck xxx
package healthcheck
import "time"
// TimeMechanism item for checker
type TimeMechanism struct {
// DelaySeconds int // Amount of time to wait until starting the health checks.
IntervalSeconds int // Interval between health checks.
TimeoutSeconds int // Amount of time to wait for the health check to complete.
ConsecutiveFailures int // Number of consecutive failures until signaling kill task.
GracePeriodSeconds int // Amount of time to allow failed health checks since launch.
}
// FailureNotify func handler
type FailureNotify func(Checker)
// CheckerStat checker statistic
type CheckerStat struct {
Started bool // status for started
StartPoint time.Time // starting time
LastFailure time.Time // time record
LastCheck time.Time // time record
Failures int // amount of failure
Ticks int // total checks
ConsecutiveFailures int // failure
Healthy bool // healthy status
}
// TotalTicks total check ticks
func (check *CheckerStat) TotalTicks() int {
return check.Ticks
}
// ConsecutiveFailure get consecutive failure times
func (check *CheckerStat) ConsecutiveFailure() int {
return check.ConsecutiveFailures
}
// IsTicks xxx
func (check *CheckerStat) IsTicks() bool {
if check.Ticks > 0 {
return true
}
return false
}
// Failure total failures
func (check *CheckerStat) Failure() int {
return check.Failures
}
// LastFailureTime last Failure
func (check *CheckerStat) LastFailureTime() time.Time {
return check.LastFailure
}
// LastCheckTime last check tick
func (check *CheckerStat) LastCheckTime() time.Time {
return check.LastCheck
}
// IsHealthy get if check is healthy
func (check *CheckerStat) IsHealthy() bool {
return check.Healthy
}
const (
// HttpHealthcheck xxx
HttpHealthcheck = "http"
// TcpHealthcheck xxx
TcpHealthcheck = "tcp"
// CommandHealthcheck xxx
CommandHealthcheck = "command"
)
// Checker health check interface
type Checker interface {
IsStarting() bool // checker is running
SetHost(host string) // setting ip/host for checker
IsHealthy() bool // get if check is healthy
TotalTicks() int // total check ticks
IsTicks() bool // is health check
ConsecutiveFailure() int // get consecutive failure times
Failure() int // total failures
LastFailureTime() time.Time // last Failure
LastCheckTime() time.Time // last check tick
Start() // start checker
Stop() // stop checker
ReCheck() bool // ask checker to check
Pause() error // pause check
Resume() error // arouse checker
Name() string // checker name
Relation() string // checker relative to container
}