Docker with MongoDB (3.4) Replica Shard - mongodb

Question

Using docker-compose to bring up a development mongo sharded cluster. Development because each replica set and the config are single instances:
Here is the docker-compose file:
version: '2'
services:
rs1_n1:
image: mongo:3.4
command: mongod --shardsvr --replSet rs1
rs2_n1:
image: mongo:3.4
command: mongod --shardsvr --replSet rs2
config_n1:
image: mongo:3.4
command: mongod --configsvr --dbpath /data/db
mongos_n1:
image: mongo:3.4
command: mongos --configdb rs1/config_n1:27017,
No issue bringing up the replica sets and the config. The router (mongos) is failing with: Failed global initialization: FailedToParse: Empty host component parsing HostAndPort from ""
As far as I can tell from the docs, I am passing the <replicaset_name>/ip:port argument correctly. Is some additional information necessary because I am doing all of this within docker-compose?

Answer 1

default configsvr port is 27019.
try this instead:
version: '2'
services:
rs1_n1:
image: mongo:3.4
command: mongod --shardsvr --replSet rs1
rs2_n1:
image: mongo:3.4
command: mongod --shardsvr --replSet rs2
config_n1:
image: mongo:3.4
command: mongod --configsvr --dbpath /data/db
mongos_n1:
image: mongo:3.4
command: mongos --configdb rs1/config_n1:27019
or
version: '2'
services:
rs1_n1:
image: mongo:3.4
command: mongod --shardsvr --replSet rs1
rs2_n1:
image: mongo:3.4
command: mongod --shardsvr --replSet rs2
config_n1:
image: mongo:3.4
command: mongod --configsvr --dbpath /data/db --port 27017
mongos_n1:
image: mongo:3.4
command: mongos --configdb rs1/config_n1:27017
You may also be interested in the following image khezen/mongo