Function AwaitReachable

internal/netutil/netutil.go:30–41

AwaitReachable tries to make a TCP connection to addr regularly. It returns an error if it's unable to make a connection before maxWait.

(addr string, maxWait time.Duration)

// AwaitReachable tries to make a TCP connection to addr regularly.
// It returns an error if it's unable to make a connection before maxWait.
func AwaitReachable(addr string, maxWait time.Duration) error {
	done := time.Now().Add(maxWait)
	for time.Now().Before(done) {
		c, err := net.Dial("tcp", addr)
		if err == nil {
			c.Close()
			return nil
		}
		time.Sleep(100 * time.Millisecond)
	}
	return fmt.Errorf("%v unreachable for %v", addr, maxWait)
}

// HostPort takes a urlStr string URL, and returns a host:port string suitable
// to passing to net.Dial, with the port set as the scheme's default port if