/
main.go
243 lines (225 loc) · 6.3 KB
/
main.go
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package main // import "github.com/therealbill/port-authority"
import (
"encoding/json"
"flag"
"fmt"
"log"
"os"
"strconv"
"strings"
"time"
"github.com/codegangsta/cli"
"github.com/docker/libkv"
"github.com/docker/libkv/store"
"github.com/docker/libkv/store/consul"
"github.com/therealbill/airbrake-go"
"github.com/therealbill/port-authority/actions"
"github.com/therealbill/port-authority/handlers"
"github.com/zenazn/goji"
)
var Build string
var key string
type LaunchConfig struct {
Name string
Port int
RPCPort int
BindAddress string
TemplateDirectory string
}
var (
config LaunchConfig
app *cli.App
)
func init() {
// Register consul store to libkv
consul.Register()
}
func serve(c *cli.Context) {
client := c.String("consuladdress")
name := c.String("name")
// Initialize a new store with consul
kv, err := libkv.NewStore(
store.CONSUL, // or "consul"
[]string{client},
&store.Config{
ConnectionTimeout: 10 * time.Second,
},
)
if err != nil {
log.Fatal("Cannot create store consul")
}
prefix := "app/port-authority/config"
key_apiport := fmt.Sprintf("%s/api_port", prefix)
//key_uiport := fmt.Sprintf("%s/ui_port", prefix)
key_rpcport := fmt.Sprintf("%s/rpc_port", prefix)
key_templatedir := fmt.Sprintf("%s/template_directory", prefix)
key_airbrakeapikey := fmt.Sprintf("%s/airbrake/api_key", prefix)
key_airbrakeendpoint := fmt.Sprintf("%s/airbrake/endpoint", prefix)
havestore := true
tmp, err := kv.Get(key_apiport)
if err != nil {
havestore = false
log.Printf("Error: %v", err)
} else {
if err != nil {
if strings.Contains(err.Error(), "not found") {
log.Printf("key not found in config store: %s/api_port", prefix)
} else {
log.Print("Error on connection: %v", err)
}
} else {
port, err := strconv.Atoi(string(tmp.Value))
if err != nil {
config.Port = int(port)
}
}
}
var port_start = 30000
var port_end = 40000
if havestore {
//config.RPCPort, err = kv.Get(key_rpcport)
log.Printf("Connected to config store")
tmp, err = kv.Get(key_templatedir)
if err != nil {
log.Print("template_directory key not foumd, using /tmp as default!")
config.TemplateDirectory = "/tmp"
} else {
config.TemplateDirectory = string(tmp.Value)
}
tmp, err = kv.Get(key_rpcport)
if err != nil {
if strings.Contains(err.Error(), "not found") {
log.Printf("key not found in config store: %s/rpc_port", prefix)
} else {
log.Print("Error on connection: %v", err)
}
} else {
fmt.Printf("rpcport: %s", string(tmp.Value))
port, err := strconv.Atoi(string(tmp.Value))
log.Printf("%s %v", port, err)
if err != nil {
config.RPCPort = int(port)
}
}
var my_key string
if name != "" {
my_key = fmt.Sprintf("%s/%s", prefix, name)
} else {
my_key = prefix
}
key_portstart := fmt.Sprintf("%s/ports_begin", my_key)
tmp, err = kv.Get(key_portstart)
if err != nil {
if strings.Contains(err.Error(), "not found") {
log.Printf("key not found in config store: %s", key_portstart)
} else {
log.Print("Error on connection: %v", err)
}
} else {
port, err := strconv.Atoi(string(tmp.Value))
if err == nil {
port_start = int(port)
}
}
key_portend := fmt.Sprintf("%s/ports_end", my_key)
tmp, err = kv.Get(key_portend)
if err != nil {
if strings.Contains(err.Error(), "not found") {
log.Printf("key not found in config store: %s", key_portend)
} else {
log.Print("Error on connection: %v", err)
}
} else {
port, err := strconv.Atoi(string(tmp.Value))
if err == nil {
port_end = int(port)
}
}
}
if actions.InitializeRedisClient("127.0.0.1:6379", "") != nil {
log.Fatal("Can not connect to Redis!")
}
log.Printf("Initializing with ports from %d to %d", port_start, port_end)
err = actions.InitializePorts(port_start, port_end)
if err != nil {
if strings.Contains(err.Error(), "already been init") {
log.Print(err.Error())
} else {
log.Printf("Error on init: %v", err)
}
}
if len(config.BindAddress) != 0 {
flag.Set("bind", config.BindAddress)
}
if config.Port == 0 {
log.Print("ENV contained no port, using default")
config.Port = 8080
flag.Set("bind", fmt.Sprintf("%s:%d", config.BindAddress, config.Port))
}
if config.RPCPort == 0 {
config.RPCPort = config.Port + 1
}
if config.TemplateDirectory > "" {
if !strings.HasSuffix(config.TemplateDirectory, "/") {
config.TemplateDirectory += "/"
}
}
handlers.TemplateBase = config.TemplateDirectory
config_json, _ := json.Marshal(config)
if havestore {
keypair, err := kv.Get(key_airbrakeapikey)
abendpoint, err := kv.Get(key_airbrakeendpoint)
if err == nil {
key := keypair.Value
//airbrake.Endpoint = "https://api.airbrake.io/notifier_api/v2/notices"
airbrake.Endpoint = string(abendpoint.Value)
airbrake.ApiKey = string(key)
airbrake.Environment = os.Getenv("RVT_ENVIRONMENT")
if len(airbrake.Environment) == 0 {
airbrake.Environment = "Development"
}
}
}
log.Printf("Config: %s", config_json)
// HTML Interface URLS
// API URLS
goji.Put("/api/service/:id", handlers.APIGetOpenPort)
goji.Get("/api/service/:id", handlers.APIGetPortFromInstance)
goji.Delete("/api/service/:id", handlers.APIRemoveService)
goji.Get("/api/port/:port", handlers.APIGetInstanceFromPort)
goji.Get("/api/ports/inventory/count", handlers.APIGetPortCapacity)
goji.Get("/api/ports/inventory/list", handlers.APIGetAvailableInventory)
goji.Get("/api/ports/assigned/count", handlers.APIGetAssignedCount)
goji.Get("/api/ports/assigned/list", handlers.APIGetAssignedList)
goji.Serve()
}
func main() {
app = cli.NewApp()
app.Name = "port-authority"
app.Usage = "Manage, assign, and track port assignments"
app.Version = "0.1"
app.EnableBashCompletion = true
author := cli.Author{Name: "Bill Anderson", Email: "therealbill@me.com"}
app.Authors = append(app.Authors, author)
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "consuladdress,c",
Usage: "Address of the Consul server",
EnvVar: "PA_CONSUL",
Value: "localhost:8500",
},
cli.StringFlag{
Name: "name,n",
Usage: "Name of the running server",
EnvVar: "PA_NAME",
},
cli.StringFlag{
Name: "environment,e",
Usage: "Name of the airbrake environment for this server",
EnvVar: "PA_ENV",
Value: "development",
},
}
app.Action = serve
app.Run(os.Args)
}