/*
Create a proxy that connects each source endpoint to each remote endpoint.
Each connection behaves in the same way as proxy.To, but invoking
cancel function aborts both.
*/
func ExampleClusterTo_cluster() {
pxyOpts := &proxy.ConnOptions{
Net: "tcp4",
FromRange: []string{":16379", ":16378"},
To: []string{"10.0.0.12:6379", "10.0.1.123:6379"},
Balance: true,
}
context, cancel := ctx.WithCancel(ctx.Background())
defer cancel()
err := proxy.ClusterTo(context, pxyOpts)
log.Warning(err)
}
func listen(wk ctx.Context, opts *proxy.ConnOptions) (halt <-chan struct{}) {
var err error
ending := make(chan struct{}, 1)
go func() {
defer close(ending)
logger := log.WithFields(log.Fields{
"Net": opts.Net,
"To": opts.To,
"Balance": opts.Balance,
})
if len(opts.FromRange) > 0 {
logger = logger.WithFields(log.Fields{
"FromRange": opts.FromRange,
})
} else {
logger = logger.WithFields(log.Fields{
"From": opts.From,
})
}
if opts.Discovery != nil {
logger = logger.WithFields(log.Fields{
"Endpoints": opts.Discovery.Endpoints,
"Service": opts.Discovery.Service,
})
}
logger.Info("begin")
if opts.Discovery != nil {
if len(opts.FromRange) == 0 {
err = proxy.Srv(wk, opts)
} else {
err = proxy.ClusterSrv(wk, opts)
}
} else if len(opts.To) != 0 {
if len(opts.FromRange) == 0 {
err = proxy.To(wk, opts)
} else {
err = proxy.ClusterTo(wk, opts)
}
} else {
err = errors.New("Misconfigured connect options")
}
logger.WithFields(log.Fields{"err": err}).Warning("end")
}()
return ending
}