Simple Bookstore App

# KubeVPN [中文](README_ZH.md) | [English](README.md) | [Wiki](https://github.com/wencaiwulue/kubevpn/wiki/Architecture) 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 ```shell 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: ```shell 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: ```shell go install github.com/wencaiwulue/kubevpn/cmd/kubevpn@latest ``` ### Install bookinfo as demo application ```shell kubectl apply -f https://raw.githubusercontent.com/wencaiwulue/kubevpn/master/samples/bookinfo.yaml ``` ## Functions ### Connect to k8s cluster network ```shell ➜ ~ 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 ``` ```shell ➜ ~ 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 kubevpn.traffic.manager 1/1 Running 0 74s 172.27.0.207 172.30.0.14 productpage-8f9d86644-z8snh 1/1 Running 0 6m59s 172.27.0.206 172.30.0.14 ratings-859b96848d-68d7n 1/1 Running 0 6m59s 172.27.0.201 172.30.0.14 reviews-dcf754f9d-46l4j 1/1 Running 0 6m59s 172.27.0.202 172.30.0.14 ``` ```shell ➜ ~ 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 ``` ```shell ➜ ~ kubectl get services -o wide NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR details ClusterIP 172.27.255.92 9080/TCP 9m7s app=details productpage ClusterIP 172.27.255.48 9080/TCP 9m6s app=productpage ratings ClusterIP 172.27.255.154 9080/TCP 9m7s app=ratings reviews ClusterIP 172.27.255.155 9080/TCP 9m6s app=reviews ``` ```shell ➜ ~ curl 172.27.255.48:9080 Simple Bookstore App ``` ### Domain resolve ```shell ➜ ~ curl productpage.default.svc.cluster.local:9080 Simple Bookstore App ``` ### Short domain resolve ```shell ➜ ~ curl productpage:9080 Simple Bookstore App ... ``` ### Reverse proxy ```shell ➜ ~ 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 ``` ```go 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) } ``` ```shell ➜ ~ 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 ```shell ➜ ~ 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 ``` ```shell ➜ ~ curl productpage:9080 Simple Bookstore App ... ``` ```shell ➜ ~ 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](https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-on-windows?view=powershell-7.2) in advance