mirror of
https://github.com/twofas/2fas-server.git
synced 2024-12-12 12:09:56 +01:00
51 lines
978 B
Go
51 lines
978 B
Go
package main
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import (
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"flag"
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"log"
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"net"
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"strings"
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"time"
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)
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func main() {
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addrFlag := flag.String("addr", ":80;:8081;:8082", "list of addresses to check sep by ;")
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flag.Parse()
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addresses := strings.Split(*addrFlag, ";")
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if len(addresses) < 1 {
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log.Fatal("-addr value not provided")
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}
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for _, address := range addresses {
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running := waitForApp(address, 30*time.Second)
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if !running {
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log.Fatal("App not running on addr: ", address)
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}
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}
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}
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// waitForApp returns true if app is listening on provided address.
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// If it cannot connect up to specified timeout, it returns false.
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func waitForApp(address string, timeout time.Duration) bool {
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done := make(chan struct{})
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go func() {
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for {
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_, err := net.DialTimeout("tcp", address, time.Second)
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if err != nil {
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time.Sleep(time.Second)
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continue
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}
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close(done)
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return
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}
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}()
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timeoutCh := time.After(timeout)
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select {
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case <-done:
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return true
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case <-timeoutCh:
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return false
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}
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}
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