func (cm *ConfigManager) parseFlags() {
pflag.StringVarP(&cm.Flags.ConfigFile, "configfile", "c", DefaultConfigFile, "Path to config")
pflag.StringVarP(&cm.Flags.DestHost, "dest-host", "d", "", "Destination syslog hostname or IP")
pflag.IntVarP(&cm.Flags.DestPort, "dest-port", "p", 0, "Destination syslog port")
if utils.CanDaemonize {
pflag.BoolVarP(&cm.Flags.NoDaemonize, "no-detach", "D", false, "Don't daemonize and detach from the terminal")
} else {
cm.Flags.NoDaemonize = true
}
pflag.StringVarP(&cm.Flags.Facility, "facility", "f", "user", "Facility")
pflag.StringVar(&cm.Flags.Hostname, "hostname", "", "Local hostname to send from")
pflag.StringVar(&cm.Flags.PidFile, "pid-file", "", "Location of the PID file")
// --parse-syslog
pflag.StringVarP(&cm.Flags.Severity, "severity", "s", "notice", "Severity")
// --strip-color
pflag.BoolVar(&cm.Flags.UseTCP, "tcp", false, "Connect via TCP (no TLS)")
pflag.BoolVar(&cm.Flags.UseTLS, "tls", false, "Connect via TCP with TLS")
pflag.BoolVar(&cm.Flags.Poll, "poll", false, "Detect changes by polling instead of inotify")
pflag.Var(&cm.Flags.RefreshInterval, "new-file-check-interval", "How often to check for new files")
_ = pflag.Bool("no-eventmachine-tail", false, "No action, provided for backwards compatibility")
_ = pflag.Bool("eventmachine-tail", false, "No action, provided for backwards compatibility")
pflag.StringVar(&cm.Flags.DebugLogFile, "debug-log-cfg", "", "the debug log file")
pflag.StringVar(&cm.Flags.LogLevels, "log", "<root>=INFO", "\"logging configuration <root>=INFO;first=TRACE\"")
pflag.Parse()
cm.FlagFiles = pflag.Args()
}
func main() {
adaptflag.AdaptWithFunc(func(info adaptflag.Info) {
flag.Var(info.Value, info.Name, info.Usage)
})
flag.Parse()
}
func main() {
color := color.New()
pflag.Var(color, "color", "when to use color (always|auto|never)")
pflag.Parse()
wd, err := os.Getwd()
mustNot(err)
gr, err := FindGithubInfo(wd)
mustNot(err)
err = GetReleaseInfo(gr)
mustNot(err)
t := template.Must(template.New("output").Parse(color.Sprint(outputTmpl)))
t.Execute(os.Stdout, gr)
}
func main() {
tgt := &Config{}
c := cstruct.MustNew(tgt, "example")
configurable.Register(c)
adaptflag.AdaptWithFunc(func(info adaptflag.Info) {
flag.Var(info.Value, info.Name, info.Usage)
})
flag.Parse()
err := adaptconf.Load("exampleapp2")
if err != nil {
fmt.Printf("%v\n", err)
}
fmt.Printf("%#v\n", tgt)
}
// Adapt registers all registered configurables as flags with the flag and
// ogier/pflag packages. Note that Adapt will not do anything with
// Configurables which it has already adapted once, thus it is safe to call
// this function multiple times.
func Adapt() {
AdaptWithFunc(func(info Info) {
dpn := DottedPath(info.Path)
if len(dpn) > 0 {
dpn += "."
}
dpn += info.Name
flag.Var(info.Value, dpn, info.Usage)
pflag.Var(info.Value, dpn, info.Usage)
fl := kingpin.Flag(dpn, info.Usage)
if info.DefaultValueString != "" {
fl = fl.PlaceHolder(info.DefaultValueString)
} else {
fl = fl.PlaceHolder("\"\"")
}
if r, ok := shortFlags[dpn]; ok {
fl = fl.Short(byte(r))
}
fl.SetValue(info.Value)
})
}
func readConfig(parse bool) {
var err error
// Set defaults
ConfigYAML.UDPServiceAddress = defaultUDPServiceAddress
ConfigYAML.TCPServiceAddress = defaultTCPServiceAddress
ConfigYAML.MaxUDPPacketSize = maxUDPPacket
ConfigYAML.BackendType = defaultBackendType
ConfigYAML.PostFlushCmd = "stdout"
ConfigYAML.GraphiteAddress = defaultGraphiteAddress
ConfigYAML.OpenTSDBAddress = defaultOpenTSDBAddress
ConfigYAML.FlushInterval = flushInterval
ConfigYAML.LogLevel = "error"
ConfigYAML.ShowVersion = false
ConfigYAML.DeleteGauges = true
ConfigYAML.ResetCounters = true
ConfigYAML.PersistCountKeys = 0
ConfigYAML.StatsPrefix = statsPrefixName
ConfigYAML.StoreDb = dbPath
ConfigYAML.Prefix = ""
ConfigYAML.ExtraTags = ""
ConfigYAML.PercentThreshold = Percentiles{}
// Percentiles{{Float: 50.0, Str: "50"}, {Float: 80.0, Str: "80"}, {Float: 90.0, Str: "90"}, {Float: 95.0, Str: "95"}}
ConfigYAML.PrintConfig = false
ConfigYAML.LogName = "stdout"
ConfigYAML.LogToSyslog = true
ConfigYAML.SyslogUDPAddress = "localhost:514"
Config = ConfigYAML
os.Setenv("CONFIGOR_ENV_PREFIX", "SD")
configFile = flag.String("config", "", "Configuration file name (warning not error if not exists). Standard: "+configPath)
flag.StringVar(&Config.UDPServiceAddress, "udp-addr", ConfigYAML.UDPServiceAddress, "UDP listen service address")
flag.StringVar(&Config.TCPServiceAddress, "tcp-addr", ConfigYAML.TCPServiceAddress, "TCP listen service address, if set")
flag.Int64Var(&Config.MaxUDPPacketSize, "max-udp-packet-size", ConfigYAML.MaxUDPPacketSize, "Maximum UDP packet size")
flag.StringVar(&Config.BackendType, "backend-type", ConfigYAML.BackendType, "MANDATORY: Backend to use: graphite, opentsdb, external, dummy")
flag.StringVar(&Config.PostFlushCmd, "post-flush-cmd", ConfigYAML.PostFlushCmd, "Command to run on each flush")
flag.StringVar(&Config.GraphiteAddress, "graphite", ConfigYAML.GraphiteAddress, "Graphite service address")
flag.StringVar(&Config.OpenTSDBAddress, "opentsdb", ConfigYAML.OpenTSDBAddress, "OpenTSDB service address")
flag.Int64Var(&Config.FlushInterval, "flush-interval", ConfigYAML.FlushInterval, "Flush interval (seconds)")
flag.StringVar(&Config.LogLevel, "log-level", ConfigYAML.LogLevel, "Set log level (debug,info,warn,error,fatal)")
flag.BoolVar(&Config.ShowVersion, "version", ConfigYAML.ShowVersion, "Print version string")
flag.BoolVar(&Config.DeleteGauges, "delete-gauges", ConfigYAML.DeleteGauges, "Don't send values to graphite for inactive gauges, as opposed to sending the previous value")
flag.BoolVar(&Config.ResetCounters, "reset-counters", ConfigYAML.ResetCounters, "Reset counters after sending value to backend (send rate) or send cumulated value (artificial counter - eg. for OpenTSDB & Grafana)")
flag.Int64Var(&Config.PersistCountKeys, "persist-count-keys", ConfigYAML.PersistCountKeys, "Number of flush-intervals to persist count keys")
flag.StringVar(&Config.StatsPrefix, "stats-prefix", ConfigYAML.StatsPrefix, "Name for internal application metrics (no prefix prepended)")
flag.StringVar(&Config.StoreDb, "store-db", ConfigYAML.StoreDb, "Name of database for permanent counters storage (for conversion from rate to counter)")
flag.StringVar(&Config.Prefix, "prefix", ConfigYAML.Prefix, "Prefix for all stats")
flag.StringVar(&Config.ExtraTags, "extra-tags", ConfigYAML.ExtraTags, "Default tags added to all measures in format: tag1=value1 tag2=value2")
flag.Var(&Config.PercentThreshold, "percent-threshold", "Percentile calculation for timers (0-100, may be given multiple times)")
flag.BoolVar(&Config.PrintConfig, "print-config", ConfigYAML.PrintConfig, "Print config in YAML format")
flag.StringVar(&Config.LogName, "log-name", ConfigYAML.LogName, "Name of file to log into. If \"stdout\" than logs to stdout.If empty logs go to /dev/null")
flag.BoolVar(&Config.LogToSyslog, "log-to-syslopg", ConfigYAML.LogToSyslog, "Log to syslog")
flag.StringVar(&Config.SyslogUDPAddress, "syslog-udp-address", ConfigYAML.SyslogUDPAddress, "Syslog address with port number eg. localhost:514. If empty log to unix socket")
if parse {
flag.Parse()
}
if len(*configFile) > 0 {
if _, err = os.Stat(*configFile); os.IsNotExist(err) {
fmt.Printf("# Warning: No config file: %s\n", *configFile)
*configFile = ""
}
if len(*configFile) > 0 {
err = configor.Load(&ConfigYAML, *configFile)
if err != nil {
fmt.Printf("Error loading config file: %s\n", err)
} else {
// set configs read form YAML file
// save 2 flags
tmpConfig := Config
// Overwites flags
Config = ConfigYAML
// restore 2 flags
Config.ShowVersion = tmpConfig.ShowVersion
Config.PrintConfig = tmpConfig.PrintConfig
}
}
// visitor := func(a *flag.Flag) {
// fmt.Println(">", a.Name, "value=", a.Value)
// switch a.Name {
// case "print-config", "version":
// break
// case "udp-addr":
// ConfigYAML.UDPServiceAddress = a.Value.(string)
// default:
// fmt.Printf("Internal Config Error - unknown variable: %s\n", a.Name)
// os.Exit(1)
// }
//
// }
// flag.Visit(visitor)
}
// Normalize prefix
Config.Prefix = normalizeDot(Config.Prefix, true)
// Normalize internal metrics name
Config.StatsPrefix = normalizeDot(Config.StatsPrefix, true)
// calculate extraFlags hash
Config.ExtraTagsHash, err = parseExtraTags(Config.ExtraTags)
if err != nil {
fmt.Printf("Extra Tags: \"%s\" - %s\n", Config.ExtraTags, err)
os.Exit(1)
}
// Set InternalLogLevel
Config.InternalLogLevel, err = log.ParseLevel(Config.LogLevel)
if err != nil {
fmt.Printf("Invalid log level: \"%s\"\n", Config.LogLevel)
os.Exit(1)
}
}
func init() {
// Tie the command-line flag to the intervalFlag variable and
// set a usage message.
flag.Var(&intervalFlag, "deltaT", "comma-separated list of intervals to use between events")
}
// Read configuration from both profile and flags. Flags override profile.
func config() error {
var err error
if B2D.Dir, err = getCfgDir(".boot2docker"); err != nil {
return fmt.Errorf("failed to get current directory: %s", err)
}
filename := os.Getenv("BOOT2DOCKER_PROFILE")
if filename == "" {
filename = filepath.Join(B2D.Dir, "profile")
}
profile, err := getProfile(filename)
if err != nil && !os.IsNotExist(err) { // undefined/empty profile works
return err
}
if p := os.Getenv("VBOX_INSTALL_PATH"); p != "" && runtime.GOOS == "windows" {
B2D.VBM = profile.Get("", "vbm", filepath.Join(p, "VBoxManage.exe"))
} else {
B2D.VBM = profile.Get("", "vbm", "VBoxManage")
}
B2D.SSH = profile.Get("", "ssh", "ssh")
B2D.VM = profile.Get("", "vm", "boot2docker-vm")
B2D.ISO = profile.Get("", "iso", filepath.Join(B2D.Dir, "boot2docker.iso"))
if diskSize, err := strconv.ParseUint(profile.Get("", "disksize", "20000"), 10, 32); err != nil {
return fmt.Errorf("invalid disk image size: %s", err)
} else {
B2D.DiskSize = uint(diskSize)
}
if memory, err := strconv.ParseUint(profile.Get("", "memory", "1024"), 10, 32); err != nil {
return fmt.Errorf("invalid memory size: %s", err)
} else {
B2D.Memory = uint(memory)
}
if sshPort, err := strconv.ParseUint(profile.Get("", "sshport", "2022"), 10, 16); err != nil {
return fmt.Errorf("invalid SSH port: %s", err)
} else {
B2D.SSHPort = uint16(sshPort)
}
if dockerPort, err := strconv.ParseUint(profile.Get("", "dockerport", "4243"), 10, 16); err != nil {
return fmt.Errorf("invalid DockerPort: %s", err)
} else {
B2D.DockerPort = uint16(dockerPort)
}
// Host only networking settings
B2D.HostIP = profile.Get("", "hostiP", "192.168.59.3")
B2D.DHCPIP = profile.Get("", "dhcpip", "192.168.59.99")
B2D.NetworkMask = profile.Get("", "netmask", "255.255.255.0")
B2D.LowerIPAddress = profile.Get("", "lowerip", "192.168.59.103")
B2D.UpperIPAddress = profile.Get("", "upperip", "192.168.59.254")
B2D.DHCPEnabled = profile.Get("", "dhcp", "Yes")
// Commandline flags override profile settings.
flag.StringVar(&B2D.VBM, "vbm", B2D.VBM, "Path to VirtualBox management utility")
flag.StringVar(&B2D.SSH, "ssh", B2D.SSH, "Path to SSH client utility")
flag.StringVarP(&B2D.Dir, "dir", "d", B2D.Dir, "boot2docker config directory")
flag.StringVar(&B2D.ISO, "iso", B2D.ISO, "Path to boot2docker ISO image")
flag.UintVarP(&B2D.DiskSize, "disksize", "s", B2D.DiskSize, "boot2docker disk image size (in MB)")
flag.UintVarP(&B2D.Memory, "memory", "m", B2D.Memory, "Virtual machine memory size (in MB)")
flag.Var(newUint16Value(B2D.SSHPort, &B2D.SSHPort), "sshport", "Host SSH port (forward to port 22 in VM)")
flag.Var(newUint16Value(B2D.DockerPort, &B2D.DockerPort), "dockerport", "Host Docker port (forward to port 4243 in VM)")
flag.StringVar(&B2D.HostIP, "hostip", B2D.HostIP, "VirtualBox host-only network IP address")
flag.StringVar(&B2D.NetworkMask, "netmask", B2D.NetworkMask, "VirtualBox host-only network mask")
flag.StringVar(&B2D.DHCPEnabled, "dhcp", B2D.DHCPEnabled, "Enable VirtualBox host-only network DHCP")
flag.StringVar(&B2D.DHCPIP, "dhcpip", B2D.DHCPIP, "VirtualBox host-only network DHCP server address")
flag.StringVar(&B2D.LowerIPAddress, "lowerip", B2D.LowerIPAddress, "VirtualBox host-only network DHCP lower bound")
flag.StringVar(&B2D.UpperIPAddress, "upperip", B2D.UpperIPAddress, "VirtualBox host-only network DHCP upper bound")
flag.Parse()
// Name of VM is the second argument.
if vm := flag.Arg(1); vm != "" {
B2D.VM = vm
}
return nil
}
