fwiw i was able to finally the docker started by making a change to MONGO_URL variable in the wekan docker.
i should note that the --link mongodb:db which was populated in extra arguments (and was there on the docker update last night) has been removed completely.
HOWEVER IN MAKING THIS CHANGE IT CREATED A NEW DATABASE AND I LOST ALL PREVIOUS WORK
it may still be somewhere in mongo, but i dont know mongo like i know mysql, so who knows.
my dockers are set up in such as way so as they do not all share a proxynet, but instead have their own IP addresses. for example mongodb docker is on 10.720.140
to make the wekan docker start, i changed the MONGO_URL to be:
mongodb://10.72.0.140:27017/db
instead of the previous MONGO_URL of
mongodb://db
I realize this change was not advisable as per one of the messages above, but this was the only way i could get it all to start.
i am almost positive this is not the correct way to do it, but this way it starts and the log files are all nominal