feat: change function runtime behaviour

README.md

@@ -2,68 +2,50 @@
 
 **Alpha** is a little agent written in **Go** responsible for running function code on the host where it runs.
 
-Currently, Alpha exposes only two HTTP endpoints on the port 3000 : 
-- `POST http://localhost:3000` : Invoke a function, see the [development](#development) section.
-- `GET http://localhost:3000/healthz` : Get the health status of the agent.
+Currently, Alpha exposes only two HTTP endpoints on the port 8080 : 
+- `POST http://localhost:8080` : Call the function, see the [development](#development) section.
+- `GET http://localhost:8080/_/health` : Get the health status of the agent.
 
 ## State
 
 The project is a mainly a PoC for now. We will need to refactor some things and add tests to ensure it works as expected. Don't hesitate to open issues or PR to fix / add features. 
 
-## Runtimes
-
-Alpha has a support only the following runtimes for now :
-
-- NodeJS (`node`)
-- Python (`python`)
-
 ## Development
 
 **Alpha was written using **Go 1.19**. We recommend you to install at least **Go 1.19** in order to be able to develop the project.** You need to have at least Node.JS installed locally.
 
 Start the agent :
 
 ```bash
+# You have to define the process to run when the agent starts. You can do it by setting the `ALPHA_INVOKE` environment variable. For example: 
+export ALPHA_INVOKE="node /tmp/index.js"
+
 go run main.go
 
 # You should see a similar output (your version of node can be different) : 
-INFO[0000] Runtime initialized                           runtime=node version=v19.4.0
-INFO[0000] Executor ready. 1 runtime(s) available for this agent 
-INFO[0000] HTTP API Server is listening on 0.0.0.0:3000 
+INFO[0000] invoke : /usr/bin/node /tmp/index.js 
+Node v18.12.1 is listening on 0.0.0.0:3000
+
 ```
 
+Alpha is now listening on the port 8080 and will forward http calls to port 3000. 
+
 Execute a function without variables through the agent : 
 
 ```bash
-curl -XPOST http://localhost:3000 -d '
-{
-  "runtime": "node",
-  "code": "https://gitlab.com/N4rkos/js-lambda-showcase/-/archive/main/js-lambda-showcase-main.tar.gz"
-}'
-
-# You should have something like this (the animal name is random at each execution) : 
-{
- "output": "{ message: 'Hello world !', animalName: 'Carnivorous Stinkbug' }\n",
- "process_exit_code": 0
-}
+curl -XPOST http://localhost:8080 
+
+# You should receive the response from the function : 
+My first function !
+
+# You can see the logs from the function in the agent's logs :
+Random animal name : Curious Seahorse
+
 ```
 
 Execute a function with variables through the agent :
 
-```bash
-curl -XPOST http://localhost:3000?name=Alpha -d '
-{
-  "runtime": "node",
-  "code": "https://gitlab.com/N4rkos/js-lambda-showcase/-/archive/main/js-lambda-showcase-main.tar.gz"
-}'
-
-# You should have something like this (the animal name is random at each execution) : 
-{
- "output": "{ message: 'Hello Alpha !', animalName: 'Carnivorous Stinkbug' }\n",
- "process_exit_code": 0
-}
-```
+WIP
 
-The example function code can be found [here](https://gitlab.com/N4rkos/js-lambda-showcase).