Error response from daemon: dockerfile parse line1: unknown instruction: SET-WEBBINDING in dockerfileerror response from daemon: dockerfile parse line1: unknown instruction: SET-WEBBINDING in dockerfile

Hi,

unable to execute a dockerfile for creating a default website and apppool and set properties for app pool

getting the following error:
error response from daemon: dockerfile parse line1: unknown instruction: SET-WEBBINDING in dockerfile

Any help would be appreciated.