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Rewording of AddFunctions section in TestDrive.

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Rewording of AddFunctions section in TestDrive.
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Brian Christner 2017-04-08 11:07:35 +02:00 committed by Alex Ellis
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TestDrive.md
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@ -86,15 +86,28 @@ The original blog post also walks through creating a function:
## Add new functions to FaaS at runtime
**Option 1**
**Option 1: Through docker-compose.yml stack file**
Edit the docker-compose stack file, then run ./deploy_stack.sh - this will only update changed/added services, not existing ones.
**Option 2**
**Option 2: via FaaS UI portal**
To attach a function at runtime you can use the "New function" button on the portal UI at http://localhost:8080/
To attach a function at runtime you can use the "Create New Function" button on the portal UI at http://localhost:8080/
**Option 3**
<a href="https://pbs.twimg.com/media/C8opW3RW0AAc9Th.jpg:large"><img src="https://pbs.twimg.com/media/C8opW3RW0AAc9Th.jpg:large" width="600"></img></a>
Creating a function via the UI:
| Option | Usage |
|------------------------|--------------|
| `Image` | The name of the image you want to use for the function. A good starting point is functions/alpine |
| `Service Name` | Describe the name of your service. The Service Name format is: [a-zA-Z_0-9] |
| `fProcess` | The process to invoke for each function call. This must be a UNIX binary and accept input via STDIN and output via STDOUT. |
| `Network` | The network `func_functions` is the default network. |
Once the create button is clicked, faas will provision a new Docker Swarm service. The newly created function will shortly be available in the list of functions on the left hand side of the UI.
**Option 3: Programatically through a HTTP POST to the API Gateway**
A HTTP post can also be sent via `curl` etc to the endpoint used by the UI (HTTP post to `/system/functions`)