https://github.com/leandromoreira/edge-computing-resty

a simple edge computing platform using nginx, lua and rails
https://github.com/leandromoreira/edge-computing-resty

docker docker-compose edge-computing hackathon lua luajit nginx nginx-lua

Last synced: 12 days ago
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a simple edge computing platform using nginx, lua and rails

• Host: GitHub
• URL: https://github.com/leandromoreira/edge-computing-resty
• Owner: leandromoreira
• License: bsd-3-clause
• Created: 2021-05-13T14:19:22.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-12-30T13:34:09.000Z (almost 2 years ago)
• Last Synced: 2024-12-03T05:41:21.961Z (23 days ago)
• Topics: docker, docker-compose, edge-computing, hackathon, lua, luajit, nginx, nginx-lua
• Language: Ruby
• Homepage:
• Size: 420 KB
• Stars: 24
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
> **Warning**

> There's a more robust and complete solution available called [lua-resty-dynacode](https://github.com/leandromoreira/lua-resty-dynacode#quick-start)

# Edge computing resty

During our hackday, we created a simple edge computing platform using nginx, lua and rails. The ideas is to inject lua code into a running nginx through a CMS.

## Demo

https://user-images.githubusercontent.com/55913/118967200-ce974e00-b940-11eb-89ab-d4366e360dc9.mp4

## Quick start

```bash

# running all the systems

make run

# open another tab - simulating a live colorbar live hls signal

make broadcast_tvshow

# you can check the streaming manifest content

http http://localhost:8080/hls/colorbar.m3u8

````

Go to http://localhost:3000/ and create a simple lua code to ensure a super secret token scheme:

```lua

local token = ngx.var.arg_token or ngx.var.cookie_superstition

if token ~= 'token' then

  return ngx.exit(ngx.HTTP_FORBIDDEN)

else

  ngx.header['Set-Cookie'] = {'superstition=token'}

end

```

![A CMS print screen](/cms.jpg "A CMS print screen")

```bash

# if you try to fetch the token again, the server will reply with a 403

http http://localhost:8080/hls/colorbar.m3u8

# but if you pass the super token, then it's going to work fine :)

http http://localhost:8080/hls/colorbar.m3u8?token=token

```

# Future work

* Federated functions

  * maybe using the domain to shard and sum with a global domain *

* Some form of lua sandboxing 

  * since [luajit can't enforce](https://github.com/Kong/kong-lua-sandbox) quota, one might use the admin phase to run the code and mesure the time, check syntax, security?!

* Provide a API hook for authentication

* Publish it as a rock

* Add measurements