A dockerfile for gns3-server, can run gns3 with remote-server mode. You can deploy it on wsl or vps.

What is the different between local-server, vm (vmware or others) and remote-server?

• GNS3 is C/S arch，gns3-all-in-one.exe is just a client gui installer
• if you use local-server, gns3-server.exe will start on you local OS
• if you use vm, gns3 will use call hyperviser to open vm, and you can simple regard vm as a ubuntu images with running gns3-server
• if you use remote-server, it is just like vm server, but you can deploy it simple and much simpler!

First of all, you need to build a gns3-server image，the dockerfile is provided in /asset folder.

There are two ways to build it

• #first way
  git clone https://github.com/iamNCJ/gns3-docker
  cd /assets
  
  # -t set a tag for later to distinguish
  # -f use the specified dockerfile
  docker build . -t gns3-server:2.2.25 -f gns.Dockerfile

• If the first way you meet some weird errors, you can use aliyun ACR

  • first create a repo at code.aliyun.com，just put a Dockerfile file at the root pos with the contents same as gns.Dockerfile

  • go to here，click 创建镜像仓库, and choose the source code register with 云code，then set

    

  • then click

    

  • after build success, you can use this to pull the images

    docker pull registry.cn-hangzhou.aliyuncs.com/****/gns3_server:[镜像版本号] 

• use docker images to check whether build success!

Second, you need edit the Dockerfile

cd /path/to/gns3-docker
vim docker-compose.yaml

##change the 
 gns3-server:
    image: registry.cn-shanghai.aliyuncs.com/ncj/gns3:2.2.17
    
## to
 gns3-server:
 	image: #the tag you build at the first step! maybe gns3-server:2.2.25 or registry.cn-shanghai.aliyuncs.com/****/****:0.0.1

then just use follow command to start it!

docker-compose up -d

• if you use VPS, don't forget to open firewall with 3080 port( if you don't change it )
• if you use WSL, you can visit localhost:3080 to check whether deply success，otherwise you need to visit http://ip:3080 to check

• go to https://github.com/GNS3/gns3-gui/releases/ to download the lastest GNS3-2.2.25-all-in-one.exe
• install it with default setting

• if you have already install it, just uninstall and redo(XD