Having trouble getting image to run as Lambda function

[sealbeater]

Errors out with "Error: the working directory '' is invalid, it needs to be an absolute path",
"errorType": "Runtime.InvalidWorkingDir". What should I put as the WORKDIR override parameter?

[tspicer]

I really don't have any sense of what you are attempting to accomplish nor is any of the information you supplied sufficiently adequate to provide any guidance.