func init() {
config.Config.HostnameResolveMethod = "none"
log.SetLevel(log.ERROR)
}
// main is the application's entry point. It will either spawn a CLI or HTTP itnerfaces.
func main() {
configFile := flag.String("config", "", "config file name")
command := flag.String("c", "", "command, required. See full list of commands via 'orchestrator -c help'")
strict := flag.Bool("strict", false, "strict mode (more checks, slower)")
instance := flag.String("i", "", "instance, host_fqdn[:port] (e.g. db.company.com:3306, db.company.com)")
sibling := flag.String("s", "", "sibling instance, host_fqdn[:port]")
destination := flag.String("d", "", "destination instance, host_fqdn[:port] (synonym to -s)")
owner := flag.String("owner", "", "operation owner")
reason := flag.String("reason", "", "operation reason")
duration := flag.String("duration", "", "maintenance duration (format: 59s, 59m, 23h, 6d, 4w)")
pattern := flag.String("pattern", "", "regular expression pattern")
clusterAlias := flag.String("alias", "", "cluster alias")
pool := flag.String("pool", "", "Pool logical name (applies for pool-related commands)")
hostnameFlag := flag.String("hostname", "", "Hostname/fqdn/CNAME/VIP (applies for hostname/resolve related commands)")
discovery := flag.Bool("discovery", true, "auto discovery mode")
quiet := flag.Bool("quiet", false, "quiet")
verbose := flag.Bool("verbose", false, "verbose")
debug := flag.Bool("debug", false, "debug mode (very verbose)")
stack := flag.Bool("stack", false, "add stack trace upon error")
config.RuntimeCLIFlags.Databaseless = flag.Bool("databaseless", false, "EXPERIMENTAL! Work without backend database")
config.RuntimeCLIFlags.SkipUnresolve = flag.Bool("skip-unresolve", false, "Do not unresolve a host name")
config.RuntimeCLIFlags.SkipUnresolveCheck = flag.Bool("skip-unresolve-check", false, "Skip/ignore checking an unresolve mapping (via hostname_unresolve table) resolves back to same hostname")
config.RuntimeCLIFlags.Noop = flag.Bool("noop", false, "Dry run; do not perform destructing operations")
config.RuntimeCLIFlags.BinlogFile = flag.String("binlog", "", "Binary log file name")
config.RuntimeCLIFlags.GrabElection = flag.Bool("grab-election", false, "Grab leadership (only applies to continuous mode)")
flag.Parse()
if *destination != "" && *sibling != "" {
log.Fatalf("-s and -d are synonyms, yet both were specified. You're probably doing the wrong thing.")
}
if *destination == "" {
*destination = *sibling
}
log.SetLevel(log.ERROR)
if *verbose {
log.SetLevel(log.INFO)
}
if *debug {
log.SetLevel(log.DEBUG)
}
if *stack {
log.SetPrintStackTrace(*stack)
}
log.Info("starting")
runtime.GOMAXPROCS(math.MinInt(4, runtime.NumCPU()))
if len(*configFile) > 0 {
config.ForceRead(*configFile)
} else {
config.Read("/etc/orchestrator.conf.json", "conf/orchestrator.conf.json", "orchestrator.conf.json")
}
if *config.RuntimeCLIFlags.Databaseless {
config.Config.DatabaselessMode__experimental = true
}
if config.Config.Debug {
log.SetLevel(log.DEBUG)
}
if *quiet {
// Override!!
log.SetLevel(log.ERROR)
}
if config.Config.EnableSyslog {
log.EnableSyslogWriter("orchestrator")
log.SetSyslogLevel(log.INFO)
}
if config.Config.AuditToSyslog {
inst.EnableAuditSyslog()
}
if len(flag.Args()) == 0 && *command == "" {
// No command, no argument: just prompt
fmt.Println(prompt)
return
}
switch {
case len(flag.Args()) == 0 || flag.Arg(0) == "cli":
app.CliWrapper(*command, *strict, *instance, *destination, *owner, *reason, *duration, *pattern, *clusterAlias, *pool, *hostnameFlag)
case flag.Arg(0) == "http":
app.Http(*discovery)
default:
fmt.Fprintln(os.Stderr, `Usage:
orchestrator --options... [cli|http]
See complete list of commands:
orchestrator -c help
Full blown documentation:
orchestrator
`)
os.Exit(1)
}
}