MongoDB replica set initiate() failing on Docker

Question

I am trying to set up a MongoDB replica set on Docker follwoing this guide . However when I get to the rs.intitate() command, I get an error.

"errmsg" : "replSetInitiate quorum check failed because not all proposed set members responded affirmatively: mongo-local-002:27017 failed with Connection refused, mongo-local-003:27017 failed with Connection refused"

edit: using latest version of docker container (3.6)

edit2: the problem is actually with mongo 3.6 (3.4 works). I have tried binding each replica ip to an ip in the docker network, however in this way I am not able to open the mongo console on the main replica (it says connection refused) even passing the IP instead of the replica name.

Does anyone know what I am missing here?

Answer 1

Starting in MongoDB 3.6, MongoDB binaries, mongod and mongos, bind to localhost by default. You need to start every mongod with --bind_ip . Try to bind not only a specific ip but to all IPv4. To bind to all IPv4 addresses, you can specify the bind ip address of 0.0.0.0. That way you will verify if the bind to a specific ip is the problem.