faas/sample-functions/ResizeImageMagick

functions/resizer

To resize an image with ImageMagick do the following:

Create your function on the FaaS UI or via curl

$ curl -s --fail localhost:8080/system/functions -d \
'{"service": "resizer", "image": "functions/resizer", "envProcess": "convert - -resize 50% fd:1", "network": "func_functions"}'

Resize a picture by 50%

Now pick an image such as the included picture of Gordon and use curl or a tool of your choice to send the data to the function. Pipe the result into a new file like this:

$ curl localhost:8080/function/resizer --data-binary @gordon.png > small_gordon.png

Customize the transformation

If you want to customise the transformation then edit the Dockerfile and create a new image.