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Less is more for the README

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@ -42,11 +42,13 @@ Any container or process in a Docker container can be a serverless function in F
> The CLI is effectively a RESTful client for the API Gateway. > The CLI is effectively a RESTful client for the API Gateway.
**CLI walk-through** When you have OpenFaaS configured you can [get started with the CLI here](https://blog.alexellis.io/quickstart-openfaas-cli/)
Once you [have set up OpenFaaS](https://github.com/alexellis/faas#get-started-with-openfaas) you can follow these instructions: ### Function examples
Let's have a quick look at an example function `url-ping` which connects to a remote web server and returns the HTTP code from the response. It's written in Python. You can generate new functions using the FaaS-CLI and built-in templates or use any binary for Windows or Linux in a Docker container.
* Python example:
```python ```python
import requests import requests
@ -57,55 +59,18 @@ def handle(req):
``` ```
*handler.py* *handler.py*
* Node.js example:
```js
"use strict"
module.exports = (callback, context) => {
callback(null, {"message": "You said: " + context})
}
``` ```
$ curl -sSL https://cli.openfaas.com | sudo sh *handler.js*
```
*Install the faas-cli which is also available on `brew`* Other [Sample functions](https://github.com/alexellis/faas/tree/master/sample-functions) are available in the Github repository in a range of programming languages.
Clone the samples and templates from Github:
```
$ git clone https://github.com/alexellis/faas-cli
$ cd faas-cli
```
Define your functions in YAML - or deploy via the API Gateway's UI.
```yaml
provider:
name: faas
gateway: http://localhost:8080
functions:
url-ping:
lang: python
handler: ./sample/url-ping
image: alexellis2/faas-urlping
```
*Example function YAML file - `url-ping.yaml`*
```
$ faas-cli -action build -f ./url-ping.yaml
```
*Build a Docker image using the Python handler in `./sample/url-ping`*
```
$ faas-cli -action deploy -f ./url-ping.yaml
```
*Deploy the new image to the gateway defined in the YAML file.*
> If your gateway is remote or part of a multi-host Swarm - you can also use the CLI to push your image to a remote registry or the Hub with `faas-cli -action push`
```
$ curl -d "https://cli.openfaas.com" http://localhost:8080/function/url-ping/
https://cli.openfaas.com => 200
```
*Test out the function with the URL https://cli.openfaas.com => 200*
[Sample functions](https://github.com/alexellis/faas/tree/master/sample-functions) are available in the Github repository in a range of programming languages.
## Get started with OpenFaaS ## Get started with OpenFaaS
@ -113,7 +78,7 @@ https://cli.openfaas.com => 200
**Docker Swarm** **Docker Swarm**
The deployment guide for Docker Swarm contains a simple one-line command to get you up and running in around 60 seconds. It also includes a set of sample functions which you can use with the TestDrive instructions below. The deployment guide for Docker Swarm contains a simple one-line command to get you up and running in around 60 seconds. It also includes a set of [sample functions](https://github.com/alexellis/faas/tree/master/sample-functions) which you can use with the TestDrive instructions below.
[Deployment guide for Docker Swarm](https://github.com/openfaas/faas/blob/master/guide/deployment_swarm.md) [Deployment guide for Docker Swarm](https://github.com/openfaas/faas/blob/master/guide/deployment_swarm.md)