javascript - Problems with MongoDB trying to deploy a Meteor App -

i have been setting server on digital ocean droplet in order host couple of meteor apps. i'm doing scratch can learn as possible. trying use "meteor-up" (mup) deploy app, having problem communicating mongodb. when run "mup setup" following error:

started tasklist: setup (linux) [gibson] - installing docker [gibson] - installing docker: success [gibson] - setting environment [gibson] - setting environment: success [gibson] - copying mongodb configuration [gibson] - copying mongodb configuration: success [gibson] - installing mongodb [gibson] x installing mongodb: failed  -----------------------------------stderr----------------------------------- docker: error response daemon: driver failed programming external connectivity on endpoint mongodb (1e188b51b171446cd22d96f40ceab1e696019e5ac33ca713d78827246ae37ec8): error starting userland proxy: listen tcp 127.0.0.1:27017: bind: address in use. -----------------------------------stdout----------------------------------- latest: pulling library/mongo digest: sha256:beff97308c36f7af664a1d04eb6ed09be1d14c17427065b2ec4b0de90967bb3f status: image date mongo:latest mongodb c17e5ac9e9369b779da4aff639c16578dedbc7c357985f67d6e7b005d9cf3939 ---------------------------------------------------------------------------- 

but can't indication of what's going wrong. problem mongo, meteor, mup, or docker?

edit:

so far understand message "mup" trying connect mongo on port 27017 , failing, don't understand why or how fix it. have database want app connect to, moved onto server local machine using mongodump , mongorestore. thing can't solve how connect meteor app mongo db.

it not try connect mongod, installs mongod in container , tries bind port 27017 local interface.

if have mongodb installed , prefer use instead, need disable installation of mongodb in mup.js, mup.json, or whatever configuration file being used in version of mup.