有个增加机器后自动注册到 ansible hosts 的需求，闲来无事拿 bash 写了个 webserver 搞了下。在大佬指引下，还加了授权校验。。

just for fun…

bash 还是挺好玩的

gayhub

What is this

a simple bash script shows the power of nc(netcat)

What does this do

It does something like ansible Dynamic Inventory.
It receive http request from client, and save the reported node IP(encrypted with openssl)
to /etc/ansible/hosts or somewhere else.

How does it work

This script do nothing but combine the awesome linux command togher:

• nc(netcat)
• grep
• sed
• dos2unix
• openssl
• curl

Why Do I do this

The main point of doing this is to show the power of linux command.
You can use it as I ansible dynamic inventory if you know what you are doing, but
it’s not recommended to use this in production.

Install

git clone https://github.com/FingerLiu/auth-enabled-bash-server

# centos
yum install -y dos2unix

# ubuntu
apt install -y dos2unix

Usage

start the server

cd auth-enabled-bash-server
./server.sh

start the server in backgroup

nohup ./server.sh & echo $! > run.pid;tail -f nohup.out

stop server

kill `cat run.pid`

start the client

PASSWORD=12345678Afz NODE_IP=192.168.1.111 ./client.sh