73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
package main
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import (
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"flag"
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"github.com/pboehm/ddns/backend"
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"github.com/pboehm/ddns/frontend"
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"github.com/pboehm/ddns/shared"
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"golang.org/x/sync/errgroup"
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"log"
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"strings"
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)
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var serviceConfig *shared.Config = &shared.Config{}
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func init() {
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flag.StringVar(&serviceConfig.Domain, "domain", "",
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"The subdomain which should be handled by DDNS")
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flag.StringVar(&serviceConfig.SOAFqdn, "soa_fqdn", "",
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"The FQDN of the DNS server which is returned as a SOA record")
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flag.StringVar(&serviceConfig.BackendListen, "listen-backend", ":8057",
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"Which socket should the backend web service use to bind itself")
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flag.StringVar(&serviceConfig.FrontendListen, "listen-frontend", ":8080",
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"Which socket should the frontend web service use to bind itself")
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flag.StringVar(&serviceConfig.RedisHost, "redis", ":6379",
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"The Redis socket that should be used")
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flag.IntVar(&serviceConfig.HostExpirationDays, "expiration-days", 10,
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"The number of days after a host is released when it is not updated")
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flag.BoolVar(&serviceConfig.Verbose, "verbose", false,
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"Be more verbose")
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}
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func validateCommandArgs() {
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if serviceConfig.Domain == "" {
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log.Fatal("You have to supply the domain via --domain=DOMAIN")
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} else if !strings.HasPrefix(serviceConfig.Domain, ".") {
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// get the domain in the right format
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serviceConfig.Domain = "." + serviceConfig.Domain
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}
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if serviceConfig.SOAFqdn == "" {
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log.Fatal("You have to supply the server FQDN via --soa_fqdn=FQDN")
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}
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}
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func main() {
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flag.Parse()
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validateCommandArgs()
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redis := shared.NewRedisBackend(serviceConfig)
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defer redis.Close()
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var group errgroup.Group
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group.Go(func() error {
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lookup := backend.NewHostLookup(serviceConfig, redis)
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return backend.NewBackend(serviceConfig, lookup).Run()
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})
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group.Go(func() error {
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return frontend.NewFrontend(serviceConfig, redis).Run()
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})
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if err := group.Wait(); err != nil {
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log.Fatal(err)
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}
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}
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