Watches Kubernetes API server for Pods & Services (de)registration.

Route rule:

	http://[pod-name or service-name].[namespace].your-domain:[exposed-port]/ --> http://[pods-ip or service-cluster-ip]:[exposed-port]

Port must be TCP protocol

• Install boot2docker

• Launch boot2docker

• Prepare GoLang directory

    export GOPATH=~/Code/Go
  

• Create compiler alias

    alias goc="docker run --rm -v "$GOPATH":/go -w /go -e CGO_ENABLED=0 -e GOOS=linux golang go"
  

• Install docker

• Install GoLang compiler

• Prepare GoLang directory

    export GOPATH=~/Code/Go
  

• Create compiler alias

    alias goc="CGO_ENABLED=0 GOOS=linux go"
  

• WebSocket

    goc get github.com/gorilla/websocket
  

• Etcd Client API

    goc github.com/coreos/etcd/client
  

• K8s API

    goc get github.com/GoogleCloudPlatform/kubernetes/pkg/api
  

• Download and build

    goc get -a -installsuffix cgo github.com/rainbean/Kube2Vulcan 
  

• Build only

    goc build -a -installsuffix cgo github.com/rainbean/Kube2Vulcan
  

Environment and build arugment is to statically compile our app with all libraries built in, refer https://blog.codeship.com/building-minimal-docker-containers-for-go-applications/

	CGO_ENABLED=0 GOOS=linux 
	build -a -installsuffix cgo 

First ports must be Vulcand's listen port, addtional ports cover exposed service and pods

	Kube2Vulcan -master [k8s-master-ip]:[port] -etcd http://[etcd-ip]:[port],http://[2nd-etcd-ip]:[port],..., -ports [vulcand-port][,addtional ports]

Flags:

	-master              Kubernetes API server address (IP:Port)
	-etcd                Etcd server address which vulcand monitor (url,...)
	-ports               List of valid backend ports to serve, first port must be default port of vulcand
	-retainHostHeader    [Optional] Retain pristin client host header, boolean (default: false)

	docker run -d quay.io/rainbean/kube2vulcan:latest -master 192.168.200.60:8080 -etcd http://127.0.0.1:2379 -ports 8000

	kubectl create -f kube2vulcan.yaml