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go-micro/monitor/monitor.go
2019-09-20 17:55:02 +01:00

46 lines
849 B
Go

// Package monitor monitors service health
package monitor
import (
"errors"
)
const (
StatusUnknown StatusCode = iota
StatusRunning
StatusFailed
)
type StatusCode int
// Monitor monitors a service and reaps dead instances
type Monitor interface {
// Reap a service and stop monitoring
Reap(service string) error
// Check the status of the service now
Check(service string) error
// Status of the service
Status(service string) (Status, error)
// Watch starts watching the service
Watch(service string) error
// Run the monitor to watch all services
Run() error
// Stop monitoring
Stop() error
}
type Status struct {
Code StatusCode
Info string
Error string
}
var (
ErrNotWatching = errors.New("not watching")
)
// NewMonitor returns a new monitor
func NewMonitor(opts ...Option) Monitor {
return newMonitor(opts...)
}