7d824a5179
- Better settings tree structure logged using `qdm12/gotree` - Read settings from environment variables, then files, then secret files - Settings methods to default them, merge them and override them - `DNS_PLAINTEXT_ADDRESS` default changed to `127.0.0.1` to use DoT. Warning added if set to something else. - `HTTPPROXY_LISTENING_ADDRESS` instead of `HTTPPROXY_PORT` (with retro-compatibility)
102 lines
2.1 KiB
Go
102 lines
2.1 KiB
Go
package dns
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import (
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"context"
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"errors"
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"github.com/qdm12/gluetun/internal/constants"
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)
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type Runner interface {
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Run(ctx context.Context, done chan<- struct{})
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}
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func (l *Loop) Run(ctx context.Context, done chan<- struct{}) {
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defer close(done)
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const fallback = false
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l.useUnencryptedDNS(fallback) // TODO remove? Use default DNS by default for Docker resolution?
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// TODO this one is kept if DNS_KEEP_NAMESERVER=on and should be replaced
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select {
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case <-l.start:
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case <-ctx.Done():
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return
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}
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for ctx.Err() == nil {
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// Upper scope variables for Unbound only
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// Their values are to be used if DOT=off
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waitError := make(chan error)
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unboundCancel := func() { waitError <- nil }
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closeStreams := func() {}
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for *l.GetSettings().DoT.Enabled {
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var err error
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unboundCancel, waitError, closeStreams, err = l.setupUnbound(ctx)
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if err == nil {
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l.backoffTime = defaultBackoffTime
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l.logger.Info("ready")
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l.signalOrSetStatus(constants.Running)
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break
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}
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l.signalOrSetStatus(constants.Crashed)
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if ctx.Err() != nil {
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return
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}
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if !errors.Is(err, errUpdateFiles) {
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const fallback = true
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l.useUnencryptedDNS(fallback)
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}
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l.logAndWait(ctx, err)
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}
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if !*l.GetSettings().DoT.Enabled {
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const fallback = false
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l.useUnencryptedDNS(fallback)
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}
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l.userTrigger = false
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stayHere := true
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for stayHere {
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select {
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case <-ctx.Done():
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unboundCancel()
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<-waitError
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close(waitError)
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closeStreams()
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return
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case <-l.stop:
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l.userTrigger = true
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l.logger.Info("stopping")
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const fallback = false
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l.useUnencryptedDNS(fallback)
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unboundCancel()
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<-waitError
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// do not close waitError or the waitError
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// select case will trigger
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closeStreams()
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l.stopped <- struct{}{}
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case <-l.start:
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l.userTrigger = true
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l.logger.Info("starting")
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stayHere = false
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case err := <-waitError: // unexpected error
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close(waitError)
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closeStreams()
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unboundCancel()
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l.statusManager.SetStatus(constants.Crashed)
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const fallback = true
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l.useUnencryptedDNS(fallback)
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l.logAndWait(ctx, err)
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stayHere = false
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}
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}
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}
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}
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