consul/troubleshoot/ports/troubleshoot_ports.go

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package ports
import (
"fmt"
"strings"
)
func TroubleshootDefaultPorts(host string) []string {
// Source - https://developer.hashicorp.com/consul/docs/install/ports
ports := []string{"8600", "8500", "8501", "8502", "8503", "8301", "8302", "8300"}
return troubleshootRun(ports, host)
}
func TroubleShootCustomPorts(host string, ports string) []string {
portsArr := strings.Split(ports, ",")
return troubleshootRun(portsArr, host)
}
func troubleshootRun(ports []string, host string) []string {
resultsChannel := make(chan string)
defer close(resultsChannel)
var counter = 0
for _, port := range ports {
counter += 1
tcpTroubleShoot := troubleShootTcp{}
port := port
go func() {
err := tcpTroubleShoot.dialPort(&hostPort{host: host, port: port})
var res string
if err != nil {
res = fmt.Sprintf("TCP: Port %s on %s is closed, unreachable, or the connection timed out.\n", port, host)
} else {
// If no error occurs, the connection was successful, and the port is open.
res = fmt.Sprintf("TCP: Port %s on %s is open.\n", port, host)
}
resultsChannel <- res
}()
}
resultsArr := make([]string, counter)
for itr := 0; itr < counter; itr++ {
res := <-resultsChannel
fmt.Print(res)
resultsArr[itr] = res
}
return resultsArr
}