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