111 lines
2.6 KiB
Go
111 lines
2.6 KiB
Go
package nebula
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import (
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"sync/atomic"
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"time"
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"github.com/sirupsen/logrus"
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"github.com/slackhq/nebula/config"
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)
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type Punchy struct {
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punch atomic.Bool
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respond atomic.Bool
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delay atomic.Int64
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respondDelay atomic.Int64
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punchEverything atomic.Bool
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l *logrus.Logger
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}
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func NewPunchyFromConfig(l *logrus.Logger, c *config.C) *Punchy {
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p := &Punchy{l: l}
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p.reload(c, true)
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c.RegisterReloadCallback(func(c *config.C) {
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p.reload(c, false)
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})
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return p
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}
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func (p *Punchy) reload(c *config.C, initial bool) {
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if initial {
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var yes bool
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if c.IsSet("punchy.punch") {
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yes = c.GetBool("punchy.punch", false)
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} else {
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// Deprecated fallback
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yes = c.GetBool("punchy", false)
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}
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p.punch.Store(yes)
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if yes {
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p.l.Info("punchy enabled")
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} else {
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p.l.Info("punchy disabled")
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}
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} else if c.HasChanged("punchy.punch") || c.HasChanged("punchy") {
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//TODO: it should be relatively easy to support this, just need to be able to cancel the goroutine and boot it up from here
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p.l.Warn("Changing punchy.punch with reload is not supported, ignoring.")
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}
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if initial || c.HasChanged("punchy.respond") || c.HasChanged("punch_back") {
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var yes bool
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if c.IsSet("punchy.respond") {
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yes = c.GetBool("punchy.respond", false)
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} else {
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// Deprecated fallback
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yes = c.GetBool("punch_back", false)
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}
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p.respond.Store(yes)
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if !initial {
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p.l.Infof("punchy.respond changed to %v", p.GetRespond())
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}
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}
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//NOTE: this will not apply to any in progress operations, only the next one
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if initial || c.HasChanged("punchy.delay") {
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p.delay.Store((int64)(c.GetDuration("punchy.delay", time.Second)))
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if !initial {
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p.l.Infof("punchy.delay changed to %s", p.GetDelay())
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}
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}
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if initial || c.HasChanged("punchy.target_all_remotes") {
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p.punchEverything.Store(c.GetBool("punchy.target_all_remotes", false))
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if !initial {
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p.l.WithField("target_all_remotes", p.GetTargetEverything()).Info("punchy.target_all_remotes changed")
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}
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}
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if initial || c.HasChanged("punchy.respond_delay") {
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p.respondDelay.Store((int64)(c.GetDuration("punchy.respond_delay", 5*time.Second)))
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if !initial {
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p.l.Infof("punchy.respond_delay changed to %s", p.GetRespondDelay())
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}
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}
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}
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func (p *Punchy) GetPunch() bool {
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return p.punch.Load()
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}
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func (p *Punchy) GetRespond() bool {
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return p.respond.Load()
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}
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func (p *Punchy) GetDelay() time.Duration {
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return (time.Duration)(p.delay.Load())
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}
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func (p *Punchy) GetRespondDelay() time.Duration {
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return (time.Duration)(p.respondDelay.Load())
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}
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func (p *Punchy) GetTargetEverything() bool {
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return p.punchEverything.Load()
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}
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