gifs/api: gifsd/server.go diff

Create a Dockerfile and binary. Write a Dockerfile that compiles everything and runs it. Start the binary; load a Context from etcd, and start everything running. The binary is pretty useless until we get HTTP handlers, though, obviously.

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gifsd/server.go	Fri Oct 17 07:22:17 2014 -0400
     1.3 @@ -0,0 +1,82 @@
     1.4 +package main
     1.5 +
     1.6 +import (
     1.7 +	"flag"
     1.8 +	"fmt"
     1.9 +	"log"
    1.10 +	"os"
    1.11 +	"strings"
    1.12 +
    1.13 +	"github.com/coreos/go-etcd/etcd"
    1.14 +)
    1.15 +
    1.16 +var (
    1.17 +	etcdAddrs = StringArray{}
    1.18 +)
    1.19 +
    1.20 +type StringArray []string
    1.21 +
    1.22 +func (a *StringArray) Set(s string) error {
    1.23 +	*a = append(*a, s)
    1.24 +	return nil
    1.25 +}
    1.26 +
    1.27 +func (a *StringArray) String() string {
    1.28 +	return strings.Join(*a, ",")
    1.29 +}
    1.30 +
    1.31 +func main() {
    1.32 +	flag.Var(&etcdAddrs, "etcd-address", "address to the etcd server (may be specified more than once)")
    1.33 +	flag.Parse()
    1.34 +	if len(etcdAddrs) < 1 {
    1.35 +		if os.Getenv("ETCD_NAME") != "" {
    1.36 +			etcdAddrs = []string{"http://etcd:" + os.Getenv("ETCD_PORT_4001_TCP_PORT") + "/"}
    1.37 +		} else {
    1.38 +			flag.Usage()
    1.39 +			return
    1.40 +		}
    1.41 +	}
    1.42 +	log.Println("Using etcd servers", etcdAddrs)
    1.43 +	client := etcd.NewClient(etcdAddrs)
    1.44 +	resp, err := client.Get("/code.secondbit.org/gifs/api/", false, true)
    1.45 +	if err != nil {
    1.46 +		log.Fatalln(err)
    1.47 +		return
    1.48 +	}
    1.49 +	context, err := getEtcdContext(resp.Node)
    1.50 +	if err != nil {
    1.51 +		log.Fatalln(err)
    1.52 +		return
    1.53 +	}
    1.54 +	err = context.Validate()
    1.55 +	if err != nil {
    1.56 +		log.Fatalln(err)
    1.57 +		return
    1.58 +	}
    1.59 +	listenAddr := ":8080"
    1.60 +	for _, node := range resp.Node.Nodes {
    1.61 +		if node.Key == "/listen_addr" {
    1.62 +			listenAddr = node.Value
    1.63 +			fmt.Println("Set listenAddr to " + node.Value)
    1.64 +			break
    1.65 +		}
    1.66 +	}
    1.67 +	log.Println("Going to listen on", listenAddr)
    1.68 +
    1.69 +	/*
    1.70 +		var router *mux.Router
    1.71 +		if context.RootDomain == "" {
    1.72 +			fmt.Println("Using path muxer")
    1.73 +			router = api.GetPathMuxer(context)
    1.74 +		} else {
    1.75 +			fmt.Println("Using domain muxer")
    1.76 +			router = api.GetDomainMuxer(context)
    1.77 +		}
    1.78 +		http.Handle("/", router)
    1.79 +		fmt.Println("Listening on " + listenAddr)
    1.80 +		err = http.ListenAndServe(listenAddr, nil)
    1.81 +		if err != nil {
    1.82 +			panic(err)
    1.83 +		}
    1.84 +	*/
    1.85 +}

gifs/api

gifs/api/gifsd/server.go