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cmd.go
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cmd.go
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/*
Copyright
*/
package main
import (
"encoding/json"
fmtlog "log"
"os"
"strings"
"time"
log "github.com/Sirupsen/logrus"
"github.com/containous/traefik/middlewares"
"github.com/containous/traefik/provider"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"net/http"
)
var traefikCmd = &cobra.Command{
Use: "traefik",
Short: "traefik, a modern reverse proxy",
Long: `traefik is a modern HTTP reverse proxy and load balancer made to deploy microservices with ease.
Complete documentation is available at http://traefik.io`,
Run: func(cmd *cobra.Command, args []string) {
run()
},
}
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print version",
Long: `Print version`,
Run: func(cmd *cobra.Command, args []string) {
fmtlog.Println(Version + " built on the " + BuildDate)
os.Exit(0)
},
}
var arguments = struct {
GlobalConfiguration
web bool
file bool
docker bool
dockerTLS bool
marathon bool
consul bool
consulTLS bool
consulCatalog bool
zookeeper bool
etcd bool
etcdTLS bool
boltdb bool
}{
GlobalConfiguration{
EntryPoints: make(EntryPoints),
Docker: &provider.Docker{
TLS: &provider.DockerTLS{},
},
File: &provider.File{},
Web: &WebProvider{},
Marathon: &provider.Marathon{},
Consul: &provider.Consul{
Kv: provider.Kv{
TLS: &provider.KvTLS{},
},
},
ConsulCatalog: &provider.ConsulCatalog{},
Zookeeper: &provider.Zookepper{},
Etcd: &provider.Etcd{
Kv: provider.Kv{
TLS: &provider.KvTLS{},
},
},
Boltdb: &provider.BoltDb{},
},
false,
false,
false,
false,
false,
false,
false,
false,
false,
false,
false,
false,
}
func init() {
traefikCmd.AddCommand(versionCmd)
traefikCmd.PersistentFlags().StringP("configFile", "c", "", "Configuration file to use (TOML, JSON, YAML, HCL).")
traefikCmd.PersistentFlags().StringP("graceTimeOut", "g", "10", "Timeout in seconds. Duration to give active requests a chance to finish during hot-reloads")
traefikCmd.PersistentFlags().String("accessLogsFile", "log/access.log", "Access logs file")
traefikCmd.PersistentFlags().String("traefikLogsFile", "log/traefik.log", "Traefik logs file")
traefikCmd.PersistentFlags().Var(&arguments.EntryPoints, "entryPoints", "Entrypoints definition using format: --entryPoints='Name:http Address::8000 Redirect.EntryPoint:https' --entryPoints='Name:https Address::4442 TLS:tests/traefik.crt,tests/traefik.key'")
traefikCmd.PersistentFlags().Var(&arguments.DefaultEntryPoints, "defaultEntryPoints", "Entrypoints to be used by frontends that do not specify any entrypoint")
traefikCmd.PersistentFlags().StringP("logLevel", "l", "ERROR", "Log level")
traefikCmd.PersistentFlags().DurationVar(&arguments.ProvidersThrottleDuration, "providersThrottleDuration", time.Duration(2*time.Second), "Backends throttle duration: minimum duration between 2 events from providers before applying a new configuration. It avoids unnecessary reloads if multiples events are sent in a short amount of time.")
traefikCmd.PersistentFlags().Int("maxIdleConnsPerHost", 0, "If non-zero, controls the maximum idle (keep-alive) to keep per-host. If zero, DefaultMaxIdleConnsPerHost is used")
traefikCmd.PersistentFlags().BoolVar(&arguments.web, "web", false, "Enable Web backend")
traefikCmd.PersistentFlags().StringVar(&arguments.Web.Address, "web.address", ":8080", "Web administration port")
traefikCmd.PersistentFlags().StringVar(&arguments.Web.CertFile, "web.cerFile", "", "SSL certificate")
traefikCmd.PersistentFlags().StringVar(&arguments.Web.KeyFile, "web.keyFile", "", "SSL certificate")
traefikCmd.PersistentFlags().BoolVar(&arguments.Web.ReadOnly, "web.readOnly", false, "Enable read only API")
traefikCmd.PersistentFlags().BoolVar(&arguments.file, "file", false, "Enable File backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.File.Watch, "file.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.File.Filename, "file.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().BoolVar(&arguments.docker, "docker", false, "Enable Docker backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.Docker.Watch, "docker.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.Docker.Filename, "docker.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().StringVar(&arguments.Docker.Endpoint, "docker.endpoint", "unix:///var/run/docker.sock", "Docker server endpoint. Can be a tcp or a unix socket endpoint")
traefikCmd.PersistentFlags().StringVar(&arguments.Docker.Domain, "docker.domain", "", "Default domain used")
traefikCmd.PersistentFlags().BoolVar(&arguments.dockerTLS, "docker.tls", false, "Enable Docker TLS support")
traefikCmd.PersistentFlags().StringVar(&arguments.Docker.TLS.CA, "docker.tls.ca", "", "TLS CA")
traefikCmd.PersistentFlags().StringVar(&arguments.Docker.TLS.Cert, "docker.tls.cert", "", "TLS cert")
traefikCmd.PersistentFlags().StringVar(&arguments.Docker.TLS.Key, "docker.tls.key", "", "TLS key")
traefikCmd.PersistentFlags().BoolVar(&arguments.Docker.TLS.InsecureSkipVerify, "docker.tls.insecureSkipVerify", false, "TLS insecure skip verify")
traefikCmd.PersistentFlags().BoolVar(&arguments.marathon, "marathon", false, "Enable Marathon backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.Marathon.Watch, "marathon.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.Marathon.Filename, "marathon.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().StringVar(&arguments.Marathon.Endpoint, "marathon.endpoint", "http://127.0.0.1:8080", "Marathon server endpoint. You can also specify multiple endpoint for Marathon")
traefikCmd.PersistentFlags().StringVar(&arguments.Marathon.Domain, "marathon.domain", "", "Default domain used")
traefikCmd.PersistentFlags().BoolVar(&arguments.Marathon.ExposedByDefault, "marathon.exposedByDefault", true, "Expose Marathon apps by default")
traefikCmd.PersistentFlags().BoolVar(&arguments.consul, "consul", false, "Enable Consul backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.Consul.Watch, "consul.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.Consul.Filename, "consul.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().StringVar(&arguments.Consul.Endpoint, "consul.endpoint", "127.0.0.1:8500", "Comma sepparated Consul server endpoints")
traefikCmd.PersistentFlags().StringVar(&arguments.Consul.Prefix, "consul.prefix", "/traefik", "Prefix used for KV store")
traefikCmd.PersistentFlags().BoolVar(&arguments.consulTLS, "consul.tls", false, "Enable Consul TLS support")
traefikCmd.PersistentFlags().StringVar(&arguments.Consul.TLS.CA, "consul.tls.ca", "", "TLS CA")
traefikCmd.PersistentFlags().StringVar(&arguments.Consul.TLS.Cert, "consul.tls.cert", "", "TLS cert")
traefikCmd.PersistentFlags().StringVar(&arguments.Consul.TLS.Key, "consul.tls.key", "", "TLS key")
traefikCmd.PersistentFlags().BoolVar(&arguments.Consul.TLS.InsecureSkipVerify, "consul.tls.insecureSkipVerify", false, "TLS insecure skip verify")
traefikCmd.PersistentFlags().BoolVar(&arguments.consulCatalog, "consulCatalog", false, "Enable Consul catalog backend")
traefikCmd.PersistentFlags().StringVar(&arguments.ConsulCatalog.Domain, "consulCatalog.domain", "", "Default domain used")
traefikCmd.PersistentFlags().StringVar(&arguments.ConsulCatalog.Endpoint, "consulCatalog.endpoint", "127.0.0.1:8500", "Consul server endpoint")
traefikCmd.PersistentFlags().BoolVar(&arguments.zookeeper, "zookeeper", false, "Enable Zookeeper backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.Zookeeper.Watch, "zookeeper.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.Zookeeper.Filename, "zookeeper.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().StringVar(&arguments.Zookeeper.Endpoint, "zookeeper.endpoint", "127.0.0.1:2181", "Comma sepparated Zookeeper server endpoints")
traefikCmd.PersistentFlags().StringVar(&arguments.Zookeeper.Prefix, "zookeeper.prefix", "/traefik", "Prefix used for KV store")
traefikCmd.PersistentFlags().BoolVar(&arguments.etcd, "etcd", false, "Enable Etcd backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.Etcd.Watch, "etcd.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.Etcd.Filename, "etcd.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().StringVar(&arguments.Etcd.Endpoint, "etcd.endpoint", "127.0.0.1:4001", "Comma sepparated Etcd server endpoints")
traefikCmd.PersistentFlags().StringVar(&arguments.Etcd.Prefix, "etcd.prefix", "/traefik", "Prefix used for KV store")
traefikCmd.PersistentFlags().BoolVar(&arguments.etcdTLS, "etcd.tls", false, "Enable Etcd TLS support")
traefikCmd.PersistentFlags().StringVar(&arguments.Etcd.TLS.CA, "etcd.tls.ca", "", "TLS CA")
traefikCmd.PersistentFlags().StringVar(&arguments.Etcd.TLS.Cert, "etcd.tls.cert", "", "TLS cert")
traefikCmd.PersistentFlags().StringVar(&arguments.Etcd.TLS.Key, "etcd.tls.key", "", "TLS key")
traefikCmd.PersistentFlags().BoolVar(&arguments.Etcd.TLS.InsecureSkipVerify, "etcd.tls.insecureSkipVerify", false, "TLS insecure skip verify")
traefikCmd.PersistentFlags().BoolVar(&arguments.boltdb, "boltdb", false, "Enable Boltdb backend")
traefikCmd.PersistentFlags().BoolVar(&arguments.Boltdb.Watch, "boltdb.watch", true, "Watch provider")
traefikCmd.PersistentFlags().StringVar(&arguments.Boltdb.Filename, "boltdb.filename", "", "Override default configuration template. For advanced users :)")
traefikCmd.PersistentFlags().StringVar(&arguments.Boltdb.Endpoint, "boltdb.endpoint", "127.0.0.1:4001", "Boltdb server endpoint")
traefikCmd.PersistentFlags().StringVar(&arguments.Boltdb.Prefix, "boltdb.prefix", "/traefik", "Prefix used for KV store")
_ = viper.BindPFlag("configFile", traefikCmd.PersistentFlags().Lookup("configFile"))
_ = viper.BindPFlag("graceTimeOut", traefikCmd.PersistentFlags().Lookup("graceTimeOut"))
_ = viper.BindPFlag("logLevel", traefikCmd.PersistentFlags().Lookup("logLevel"))
// TODO: wait for this issue to be corrected: https://github.com/spf13/viper/issues/105
_ = viper.BindPFlag("providersThrottleDuration", traefikCmd.PersistentFlags().Lookup("providersThrottleDuration"))
_ = viper.BindPFlag("maxIdleConnsPerHost", traefikCmd.PersistentFlags().Lookup("maxIdleConnsPerHost"))
viper.SetDefault("providersThrottleDuration", time.Duration(2*time.Second))
viper.SetDefault("logLevel", "ERROR")
viper.SetDefault("MaxIdleConnsPerHost", 200)
}
func run() {
fmtlog.SetFlags(fmtlog.Lshortfile | fmtlog.LstdFlags)
// load global configuration
globalConfiguration := LoadConfiguration()
http.DefaultTransport.(*http.Transport).MaxIdleConnsPerHost = globalConfiguration.MaxIdleConnsPerHost
loggerMiddleware := middlewares.NewLogger(globalConfiguration.AccessLogsFile)
defer loggerMiddleware.Close()
// logging
level, err := log.ParseLevel(strings.ToLower(globalConfiguration.LogLevel))
if err != nil {
log.Fatal("Error getting level", err)
}
log.SetLevel(level)
if len(globalConfiguration.TraefikLogsFile) > 0 {
fi, err := os.OpenFile(globalConfiguration.TraefikLogsFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
defer func() {
if err := fi.Close(); err != nil {
log.Error("Error closinf file", err)
}
}()
if err != nil {
log.Fatal("Error opening file", err)
} else {
log.SetOutput(fi)
log.SetFormatter(&log.TextFormatter{DisableColors: true, FullTimestamp: true, DisableSorting: true})
}
} else {
log.SetFormatter(&log.TextFormatter{FullTimestamp: true, DisableSorting: true})
}
jsonConf, _ := json.Marshal(globalConfiguration)
log.Debugf("Global configuration loaded %s", string(jsonConf))
server := NewServer(*globalConfiguration)
server.Start()
defer server.Close()
log.Info("Shutting down")
}