This post https://alfrednutile.info/posts/143 covers the setup of docker and iron cli. Also some of the basics of what is happening.
From there you can use this library to build out thumbnails for you.
docker run --rm -v "$(pwd)":/worker -w /worker iron/images:php-5.6 sh -c "php /worker/workers/ThumbMaker.php -payload payload.json"
docker run -it -v "$(pwd)":/worker -w /worker iron/images:php-5.6 /bin/bash
Set your .env
curl -H "Content-Type: application/json" -X POST -d '{"folder": "bundles/mock-project-1/requests/mock-request-1/compares/a"}' "https://worker-aws-us-east-1.iron.io/2/projects/IRON_PROJECT_ID/tasks/webhook?code_name=ThumbMaker&oauth=IRON_TOKEN_ID"
See payload.json for the most basic.
For a full set of env options
{
"folder": "path/to/files",
"bucket": "foo",
"region": "east-foo",
"secret": "bar",
"key": "foo",
"destination": "thumbnails"
}
sh ./upload_worker.sh