ing

discovery.go

@@ -1,13 +0,0 @@
-package discovery
-
-type Discoverer interface {
-}
-
-type discovery struct {
-}
-
-func New() Discoverer {
-	d := &discovery{}
-
-	return d
-}

glide.yaml

@@ -3,3 +3,6 @@ import:
 - package: git.loafle.net/commons_go/util
 - package: github.com/google/gopacket
   version: v1.1.14
+- package: git.loafle.net/commons_go/local_socket.git
+- package: git.loafle.net/commons_go/server
+- package: git.loafle.net/commons_go/rpc

logging.json

@@ -0,0 +1,27 @@
+{
+  "level": "debug",
+  "development": true,
+  "disableCaller": true,
+  "disableStacktrace": true,
+  "sampling": {
+    "initial": 100,
+    "thereafter": 100
+  },
+  "encoding": "console",
+  "encoderConfig": {
+    "messageKey": "message",
+    "levelKey": "level",
+    "timeKey": "time",
+    "nameKey": "name",
+    "callerKey": "caller",
+    "stacktraceKey": "stacktrace",
+    "lineEnding": "\n",
+    "levelEncoder": "color",
+    "timeEncoder": "ISO8601",
+    "durationEncoder": "string",
+    "callerEncoder": "full",
+    "nameEncoder": "full"
+  },
+  "outputPaths": ["stdout", "/tmp/logs"],
+  "errorOutputPaths": ["stderr"]
+}

main.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"log"
+
+	"git.loafle.net/overflow/overflow_discovery/server"
+)
+
+func main() {
+	// s := local_socket.NewLocalServer("discovery")
+	// s.SetOnConnectionCallback(func(socket net.Conn) {
+	// 	defer socket.Close()
+	// 	var wg sync.WaitGroup
+	// 	wg.Add(2)
+	// 	go func() {
+	// 		writer := bufio.NewWriter(socket)
+	// 		count := rand.Intn(20)
+	// 		fmt.Printf("send %d items\n", count)
+	// 		for i := 0; i < count; i++ {
+	// 			fmt.Printf("write %d\n", i)
+	// 			fmt.Fprintf(writer, "%d\n", i)
+	// 		}
+	// 		writer.WriteString("end\n")
+	// 		writer.Flush()
+	// 		fmt.Println("done write")
+	// 		wg.Done()
+	// 	}()
+	// 	go func() {
+	// 		reader := bufio.NewReader(socket)
+	// 		counter := 1
+	// 		for {
+	// 			content, err := reader.ReadString('\n')
+	// 			if err != nil {
+	// 				fmt.Println(err)
+	// 				break
+	// 			}
+	// 			fmt.Printf("read %d: '%s'\n", counter, strings.TrimRight(content, "\n"))
+	// 			if content == "end\n" {
+	// 				break
+	// 			}
+	// 			counter++
+	// 		}
+	// 		fmt.Println("done read")
+	// 		wg.Done()
+	// 	}()
+	// 	wg.Wait()
+	// })
+
+	// stop := make(chan os.Signal)
+	// signal.Notify(stop, syscall.SIGINT)
+	// var wg sync.WaitGroup
+	// wg.Add(1)
+	// go func() {
+	// 	defer wg.Done()
+	// 	s.ListenAndServe()
+	// }()
+
+	// fmt.Printf("Serving Server at %s\n", s.Path())
+	// select {
+	// case signal := <-stop:
+	// 	fmt.Printf("Got signal: %v\n", signal)
+	// }
+	// fmt.Printf("Stopping listener\n")
+	// s.Close()
+	// fmt.Printf("Waiting on server\n")
+	// wg.Wait()
+
+	s := server.New("discovery")
+
+	if err := s.Serve(); err != nil {
+		log.Fatalf("Cannot start rpc server: %s", err)
+	}
+}
+
+/**
+azure
+consul
+dns
+ec2
+file
+gce
+kubernetes
+marathon
+openstack
+triton
+zookeeper
+*/

net/config.go

@@ -1,12 +1,25 @@
 package net
 
+import (
+	"git.loafle.net/overflow/overflow_discovery/net/model"
+)
+
 type DiscoveryConfig struct {
+	ZoneConfig    *DiscoveryZoneConfig
+	HostConfig    *DiscoveryHostConfig
+	PortConfig    *DiscoveryPortConfig
+	ServiceConfig *DiscoveryServiceConfig
 }
 
 type DiscoveryZoneConfig struct {
+	ExcludePatterns []string `json:"excludePatterns"`
 }
 
 type DiscoveryHostConfig struct {
+	DiscoveryZone  model.DiscoveryZone
+	FirstScanRange int   `json:"firstScanRange"`
+	LastScanRange  int   `json:"lastScanRange"`
+	ExcludeHosts   []int `json:"excludeHosts"`
 }
 
 type DiscoveryPortConfig struct {

net/host.go

@@ -0,0 +1 @@
+package net

net/net.go

@@ -11,3 +11,43 @@ func NewDiscoverer() Discoverer {
 
 	return d
 }
+
+func (d *discovery) Discover() {
+
+}
+
+func (d *discovery) DiscoverZone(dzc *DiscoveryZoneConfig) {
+	zs := newZoneScan(dzc)
+
+	defer func() {
+		zs.Close()
+	}()
+
+	go scanZone(zs)
+
+Loop:
+	for {
+		select {
+		case zone := <-zs.zoneChan:
+
+		case err := <-zs.logChan:
+
+		case <-zs.endChan:
+			break Loop
+		}
+
+	}
+
+}
+
+func (d *discovery) DiscoverHost() {
+
+}
+
+func (d *discovery) DiscoverPort() {
+
+}
+
+func (d *discovery) DiscoverService() {
+
+}

net/zone.go

@@ -1,18 +1,56 @@
 package net
 
-import "net"
-import "git.loafle.net/overflow/overflow_discovery/net/model"
-import "strings"
+import (
+	"net"
+	"regexp"
+	"strings"
 
-func ScanZone(endChan chan<- bool, zoneChan chan<- *model.DiscoveryZone, logChan chan<- error) {
+	"git.loafle.net/overflow/overflow_discovery/net/model"
+)
+
+type ZoneScanner interface {
+	
+}
+
+type zoneScan struct {
+	config   *DiscoveryZoneConfig
+	endChan  chan bool
+	zoneChan chan *model.DiscoveryZone
+	logChan  chan error
+}
+
+func newZoneScan(dzc *DiscoveryZoneConfig) *zoneScan {
+	zs := &zoneScan{
+		config:   dzc,
+		endChan:  make(chan bool),
+		zoneChan: make(chan *model.DiscoveryZone, 4),
+		logChan:  make(chan error, 4),
+	}
+	return zs
+}
+
+func (zs *zoneScan) Close() {
+	close(zs.endChan)
+	close(zs.zoneChan)
+	close(zs.logChan)
+}
+
+func scanZone(zs *zoneScan) {
 	var err error
 	var ifaces []net.Interface
 	var addrs []net.Addr
 	var ipnet *net.IPNet
 	var zones []*net.IPNet
+	// var gwIP net.IP
+	// var gwIFace string
+
+	// if gwIP, gwIFace, err = gateway.DiscoverGateway(); nil != err {
+	// 	logChan <- err
+	// 	return
+	// }
 
 	if ifaces, err = net.Interfaces(); nil != err {
-		logChan <- err
+		zs.logChan <- err
 		return
 	}
 
@@ -21,17 +59,17 @@ func ScanZone(endChan chan<- bool, zoneChan chan<- *model.DiscoveryZone, logChan
 	for _, i := range ifaces {
 
 		if addrs, err = i.Addrs(); nil != err {
-			logChan <- err
+			zs.logChan <- err
 			continue
 		}
 
 		for _, addr := range addrs {
 
 			if _, ipnet, err = net.ParseCIDR(addr.String()); nil != err {
-				logChan <- err
+				zs.logChan <- err
 				continue
 			}
-			if ipnet.IP.IsLoopback() || checkSameZone(zones, ipnet) {
+			if ipnet.IP.IsLoopback() || checkSameZone(zones, ipnet) || checkExclude(zs.config.ExcludePatterns, i.Name) {
 				continue
 			}
 
@@ -44,14 +82,28 @@ func ScanZone(endChan chan<- bool, zoneChan chan<- *model.DiscoveryZone, logChan
 				IP:      strings.Split(addr.String(), "/")[0],
 			}
 
-			zoneChan <- dz
+			zs.zoneChan <- dz
 		}
 	}
 
-	endChan <- true
+	zs.endChan <- true
 
 }
 
+func checkExclude(ep []string, iface string) bool {
+	var r *regexp.Regexp
+	var err error
+	for _, p := range ep {
+		if r, err = regexp.Compile(p); nil != err {
+			return false
+		}
+		if r.MatchString(iface) {
+			return true
+		}
+	}
+	return false
+}
+
 func checkSameZone(zones []*net.IPNet, ipnet *net.IPNet) bool {
 	for _, i := range zones {
 		if i.Contains(ipnet.IP) {

net/zone_test.go

@@ -1,33 +1,30 @@
 package net
 
 import (
-	"log"
 	"testing"
-
-	"git.loafle.net/overflow/overflow_discovery/net/model"
 )
 
 func TestScanZone(t *testing.T) {
-	endChan := make(chan bool)
-	zoneChan := make(chan *model.DiscoveryZone, 4)
-	logChan := make(chan error, 4)
+	dzc := &DiscoveryZoneConfig{
+		ExcludePatterns: []string{`^br-`, `^docker`},
+	}
+	zs := newZoneScan(dzc)
 
 	defer func() {
-		close(endChan)
-		close(zoneChan)
-		close(logChan)
+		zs.Close()
 	}()
 
-	go ScanZone(endChan, zoneChan, logChan)
+	go scanZone(zs)
 
 Loop:
 	for {
 		select {
-		case zone := <-zoneChan:
-			log.Printf("zone: %v", zone)
-		case err := <-logChan:
-			log.Printf("log: %v", err)
-		case <-endChan:
+		case zone := <-zs.zoneChan:
+
+			t.Logf("zone: %v", zone)
+		case err := <-zs.logChan:
+			t.Logf("log: %v", err)
+		case <-zs.endChan:
 			break Loop
 		}
 

server/rpc/discovery_service.go

@@ -0,0 +1,12 @@
+package rpc
+
+import (
+	"log"
+)
+
+type DiscoveryService struct {
+}
+
+func (ds *DiscoveryService) Start() {
+	log.Print("DiscoveryService.Start")
+}

server/server.go

@@ -0,0 +1,21 @@
+package server
+
+import (
+	"git.loafle.net/commons_go/rpc"
+	"git.loafle.net/commons_go/rpc/protocol/json"
+	"git.loafle.net/commons_go/server"
+
+	dRPC "git.loafle.net/overflow/overflow_discovery/server/rpc"
+)
+
+func New(addr string) server.Server {
+	registry := rpc.NewRegistry()
+	registry.RegisterCodec(json.NewCodec(), "json")
+	registry.RegisterService(new(dRPC.DiscoveryService), "")
+
+	sh := NewServerHandler(addr, registry)
+
+	s := server.NewServer(sh)
+
+	return s
+}

server/server_handlers.go

@@ -0,0 +1,32 @@
+package server
+
+import (
+	"io"
+
+	"git.loafle.net/commons_go/rpc"
+	"git.loafle.net/commons_go/server"
+	"git.loafle.net/commons_go/server/ipc"
+)
+
+func NewServerHandler(addr string, registry rpc.Registry) ServerHandler {
+	sh := &ServerHandlers{
+		registry: registry,
+	}
+	sh.Addr = addr
+
+	return sh
+}
+
+type ServerHandler interface {
+	server.ServerHandler
+}
+
+type ServerHandlers struct {
+	ipc.ServerHandlers
+
+	registry rpc.Registry
+}
+
+func (sh *ServerHandlers) Handle(remoteAddr string, rwc io.ReadWriteCloser, stopChan chan struct{}) {
+
+}