Docker for Serverless Applications

Hello OpenFaas

We will try the echoit function to hello world with OpenFaaS. First, clone the project from https://github.com/openfaas/faas with one level of depth to just make the clone process quicker:

$ git clone --depth=1 https://github.com/openfaas/faas

Then, change the directory into faas, and simply deploy the OpenFaaS default stack, using the following command:

$ cd faas$ docker stack deploy -c docker-compose.yml func

Wait until the stack is going up. Then, we do hello world with the curl command:

$ curl -d "hello world." -v http://localhost:8080/function/func_echoit* Trying 127.0.0.1...* Connected to localhost (127.0.0.1) port 8080 (#0)> POST /function/func_echoit HTTP/1.1> Host: localhost:8080> User-Agent: curl/7.47.0> Accept: */* ...