Unbound Variable ISOLATED_REGIONS

[fiendishfeather]

Good Day,

When attempting to run the script with CACHE_CONTAINER_IMAGES set to true, the install_worker.sh script throws an unbound variable error for ISOLATED_REGIONS on line 405.

Looking at the history of the install_worker.sh file, it appears that the ISOLATED_REGIONS variable used to be set if the variable INSTALL_AWSCLI was set to true, but the code has been refactored since then and is no longer gets set as a static variable.

[bradwatsonaws]

@fiendishfeather did you ever get past this issue? I apologize I didn't see this issue get posted.