kub
github.com/wencaiwulue/kubevpn
go get github.com/wencaiwulue/kubevpn
kub

github.com/wencaiwulue/kubevpn

KubeVPN, A vpn tools which can connect to kubernetes cluster network, you can access remote kubernetes cluster network, remote kubernetes cluster service can also access your local service

by unknownv1.1.1 (see all)
go get github.com/wencaiwulue/kubevpn
Readme

KubeVPN

中文 | English | Wiki

A tools which can connect to kubernetes cluster network, you can access remote kubernetes cluster network, remote kubernetes cluster service can also access your local service

QuickStart

git clone https://github.com/wencaiwulue/kubevpn.git
cd kubevpn
make kubevpn-linux
make kubevpn-macos
make kubevpn-windows

if you are using windows, you can build by this command:

go build github.com/wencaiwulue/kubevpn/cmd/kubevpn -o kubevpn.exe

if you installed Go 1.16+, you can use install it by this command directly:

go install github.com/wencaiwulue/kubevpn/cmd/kubevpn@latest

Install bookinfo as demo application

kubectl apply -f https://raw.githubusercontent.com/wencaiwulue/kubevpn/master/samples/bookinfo.yaml

Functions

Connect to k8s cluster network

➜  ~ kubevpn connect
INFO[0000] [sudo kubevpn connect]
Password:
2022/02/05 12:09:22 connect.go:303: kubeconfig path: /Users/naison/.kube/config, namespace: default, services: []
2022/02/05 12:09:28 remote.go:47: traffic manager not exist, try to create it...
2022/02/05 12:09:28 remote.go:121: pod kubevpn.traffic.manager status is Pending
2022/02/05 12:09:29 remote.go:121: pod kubevpn.traffic.manager status is Running
Forwarding from 0.0.0.0:10800 -> 10800
2022/02/05 12:09:31 connect.go:171: port forward ready
2022/02/05 12:09:31 connect.go:193: your ip is 223.254.254.176
2022/02/05 12:09:31 connect.go:197: tunnel connected
Handling connection for 10800
2022/02/05 12:09:31 connect.go:211: dns service ok
➜  ~ kubectl get pods -o wide
NAME                          READY   STATUS      RESTARTS   AGE     IP             NODE          NOMINATED NODE   READINESS GATES
details-7db5668668-mq9qr      1/1     Running     0          7m      172.27.0.199   172.30.0.14   <none>           <none>
kubevpn.traffic.manager       1/1     Running     0          74s     172.27.0.207   172.30.0.14   <none>           <none>
productpage-8f9d86644-z8snh   1/1     Running     0          6m59s   172.27.0.206   172.30.0.14   <none>           <none>
ratings-859b96848d-68d7n      1/1     Running     0          6m59s   172.27.0.201   172.30.0.14   <none>           <none>
reviews-dcf754f9d-46l4j       1/1     Running     0          6m59s   172.27.0.202   172.30.0.14   <none>           <none>
➜  ~ ping 172.27.0.206
PING 172.27.0.206 (172.27.0.206): 56 data bytes
64 bytes from 172.27.0.206: icmp_seq=0 ttl=63 time=49.563 ms
64 bytes from 172.27.0.206: icmp_seq=1 ttl=63 time=43.014 ms
64 bytes from 172.27.0.206: icmp_seq=2 ttl=63 time=43.841 ms
64 bytes from 172.27.0.206: icmp_seq=3 ttl=63 time=44.004 ms
64 bytes from 172.27.0.206: icmp_seq=4 ttl=63 time=43.484 ms
^C
--- 172.27.0.206 ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 43.014/44.781/49.563/2.415 ms
➜  ~ kubectl get services -o wide
NAME          TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)    AGE     SELECTOR
details       ClusterIP   172.27.255.92    <none>        9080/TCP   9m7s    app=details
productpage   ClusterIP   172.27.255.48    <none>        9080/TCP   9m6s    app=productpage
ratings       ClusterIP   172.27.255.154   <none>        9080/TCP   9m7s    app=ratings
reviews       ClusterIP   172.27.255.155   <none>        9080/TCP   9m6s    app=reviews
➜  ~ curl 172.27.255.48:9080
<!DOCTYPE html>
<html>
  <head>
    <title>Simple Bookstore App</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">

Domain resolve

➜  ~ curl productpage.default.svc.cluster.local:9080
<!DOCTYPE html>
<html>
  <head>
    <title>Simple Bookstore App</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">

Short domain resolve

➜  ~ curl productpage:9080
<!DOCTYPE html>
<html>
  <head>
    <title>Simple Bookstore App</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
...

Reverse proxy

➜  ~ kubevpn connect --workloads=service/productpage
INFO[0000] [sudo kubevpn connect --workloads=service/productpage]
Password:
2022/02/05 12:18:22 connect.go:303: kubeconfig path: /Users/naison/.kube/config, namespace: default, services: [service/productpage]
2022/02/05 12:18:28 remote.go:47: traffic manager not exist, try to create it...
2022/02/05 12:18:28 remote.go:121: pod kubevpn.traffic.manager status is Pending
2022/02/05 12:18:29 remote.go:121: pod kubevpn.traffic.manager status is Running
Waiting for deployment "productpage" rollout to finish: 1 old replicas are pending termination...
Waiting for deployment "productpage" rollout to finish: 1 old replicas are pending termination...
deployment "productpage" successfully rolled out
Forwarding from 0.0.0.0:10800 -> 10800
2022/02/05 12:18:34 connect.go:171: port forward ready
2022/02/05 12:18:34 connect.go:193: your ip is 223.254.254.176
2022/02/05 12:18:34 connect.go:197: tunnel connected
Handling connection for 10800
2022/02/05 12:18:35 connect.go:211: dns service ok
package main

import (
    "io"
    "net/http"
)

func main() {
    http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
        _, _ = io.WriteString(writer, "Hello world!")
    })
    _ = http.ListenAndServe(":9080", nil)
}
➜  ~ curl productpage:9080
Hello world!%
➜  ~ curl productpage.default.svc.cluster.local:9080
Hello world!%

Reverse proxy with mesh

Only support HTTP and GRPC, with specific header "a: 1" will route to your local machine

➜  ~ kubevpn connect --workloads=service/productpage --mode=mesh --headers a=1
INFO[0000] [sudo kubevpn connect --workloads=service/productpage --mode=mesh --headers a=1]
2022/02/05 12:22:28 connect.go:303: kubeconfig path: /Users/naison/.kube/config, namespace: default, services: [service/productpage]
2022/02/05 12:22:34 remote.go:47: traffic manager not exist, try to create it...
2022/02/05 12:22:34 remote.go:121: pod kubevpn.traffic.manager status is Pending
2022/02/05 12:22:36 remote.go:121: pod kubevpn.traffic.manager status is Running
Waiting for deployment "productpage" rollout to finish: 1 old replicas are pending termination...
Waiting for deployment "productpage" rollout to finish: 1 old replicas are pending termination...
deployment "productpage" successfully rolled out
Forwarding from 0.0.0.0:10800 -> 10800
2022/02/05 12:22:43 connect.go:171: port forward ready
2022/02/05 12:22:43 connect.go:193: your ip is 223.254.254.176
2022/02/05 12:22:43 connect.go:197: tunnel connected
Handling connection for 10800
2022/02/05 12:22:43 connect.go:211: dns service ok
➜  ~ curl productpage:9080
<!DOCTYPE html>
<html>
  <head>
    <title>Simple Bookstore App</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
...
➜  ~ curl productpage:9080 -H "a: 1"
Hello world!%

Multiple Protocol

  • TCP
  • UDP
  • HTTP
  • ICMP
  • ...

Cross-platform

  • macOS
  • Linux
  • Windows

on Windows platform, you need to install PowerShell in advance

GitHub Stars

12

LAST COMMIT

3mos ago

MAINTAINERS

0

CONTRIBUTORS

5

OPEN ISSUES

1

OPEN PRs

0
VersionTagPublished
v1.1.1
5mos ago
v1.1.0
7mos ago
v1.0.1-0.20211030082114-0102c10237e3
7mos ago
v1.0.0
7mos ago
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