Hands-on-Network-Programming-with-Go

README

Hands-on-Network-Programming-with-Go

Hands-on Network Programming with Go, by EC-Council

Environment Variables

To run this project, you will need to add the following environment variables to your .env file

SSH_USER

SSH_PASSWORD

POSTGRES_USER

POSTGRES_PASSWORD

DSN

For example:

export POSTGRES_USER=postgres
export POSTGRES_PASSWORD=postgres
export DSN=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@localhost:5432/device_inventory

Run Locally

Clone the project

  git clone https://github.com/codered-by-ec-council/Hands-on-Network-Programming-with-Go.git

Go to the project directory

  cd Hands-on-Network-Programming-with-Go

Install dependencies

go mod download

Spin up the postgres container

# create the volume initially
docker-compose up

Start the web server

go run cmd/web/*.go

Usage/Examples

Fire up the Miminal server

cd cmd/server
go build -o custom-server
sudo -E ./custom-server

Run Command via CLI

package main

import (
	"flag"
	"fmt"
	"log"

	"github.com/codered-by-ec-council/Hands-on-Network-Programming-with-Go/pkg/devcon"
)

func main() {
	target := flag.String("target", "127.0.0.1", "target against which to run a command")
	cmd := flag.String("cmd", "", "command to run against target device")
	flag.Parse()
	client := devcon.NewClient(*target)
	output, err := client.Run(*cmd)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(output)
}

Run a Change with cmdrunner

package main

import (
	"log"

	"github.com/codered-by-ec-council/Hands-on-Network-Programming-with-Go/pkg/cmdrunner"
)

func main() {
	isisAdj := &cmdrunner.ISISAdjacencyRpcReply{Target: "labsrx", ExpectedNeighbor: "lab_srx100"}
	sr := &cmdrunner.SpecificRouteRpcReply{Target: "labsrx", ExpectedNextHop: "192.168.0.1"}
	cmds := []cmdrunner.Runner{isisAdj, sr}
	if err := cmdrunner.Stepper(cmds); err != nil {
		log.Println(err)
	}
}