无法连接到docker mongo

Question

I am setting up a project using sane with docker. After creating the project to use mongodb and createing a resource I tried running it, but got an error reporting that the server container could not connect to mongo. I then tried just running fig up to see if it was a fig problem and got the same error. Here is my fig.yml (irrelevant comments removed):

db:
  image: mongo:latest
  ports:
    - "27017:27017"
server:
  image: artificial/docker-sails:stable-pm2
  command: sails lift
  volumes:
    - server/:/server
  ports:
    - "1337:1337"
  links:
    - db

The full error report on fig up is as follows (the error report on sane up is the same, although the output from db_1 is more terse and there are also lines of output for the client):

Recreating hydro_db_1...
Recreating hydro_server_1...
Attaching to hydro_db_1, hydro_server_1
db_1     | mongod --help for help and startup options
db_1     | 2015-02-17T13:32:00.092+0000 [initandlisten] MongoDB starting : pid=1 port=27017 dbpath=/data/db 64-bit host=b7a85ddb94e2
db_1     | 2015-02-17T13:32:00.093+0000 [initandlisten] db version v2.6.7
db_1     | 2015-02-17T13:32:00.094+0000 [initandlisten] git version: a7d57ad27c382de82e9cb93bf983a80fd9ac9899
db_1     | 2015-02-17T13:32:00.094+0000 [initandlisten] build info: Linux build7.nj1.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
db_1     | 2015-02-17T13:32:00.094+0000 [initandlisten] allocator: tcmalloc
db_1     | 2015-02-17T13:32:00.094+0000 [initandlisten] options: {}
db_1     | 2015-02-17T13:32:00.099+0000 [initandlisten] journal dir=/data/db/journal
db_1     | 2015-02-17T13:32:00.099+0000 [initandlisten] recover : no journal files present, no recovery needed
db_1     | 2015-02-17T13:32:00.274+0000 [initandlisten] waiting for connections on port 27017
server_1 | 
server_1 | info: Starting app...
server_1 | 
server_1 | error: A hook (`orm`) failed to load!
server_1 | error: Error: Failed to connect to MongoDB.  Are you sure your configured Mongo instance is running?
server_1 |  Error details:
server_1 | [Error: failed to connect to [localhost:27017]]
server_1 |     at _createError (/server/node_modules/sails-mongo/lib/adapter.js:98:23)
server_1 |     at /server/node_modules/sails-mongo/lib/adapter.js:101:13
server_1 |     at /server/node_modules/sails-mongo/lib/connection.js:25:20
server_1 |     at /server/node_modules/sails-mongo/node_modules/mongodb/lib/mongodb/mongo_client.js:406:11
server_1 |     at process._tickDomainCallback (node.js:486:13) { [Error: Failed to connect to MongoDB.  Are you sure your configured Mongo instance is running?
server_1 |  Error details:
server_1 | [Error: failed to connect to [localhost:27017]]]
server_1 |   originalError: [Error: failed to connect to [localhost:27017]] }
server_1 | error: Error: Failed to connect to MongoDB.  Are you sure your configured Mongo instance is running?
server_1 |  Error details:
server_1 | [Error: failed to connect to [localhost:27017]]
server_1 |     at _createError (/server/node_modules/sails-mongo/lib/adapter.js:98:23)
server_1 |     at /server/node_modules/sails-mongo/lib/adapter.js:101:13
server_1 |     at /server/node_modules/sails-mongo/lib/connection.js:25:20
server_1 |     at /server/node_modules/sails-mongo/node_modules/mongodb/lib/mongodb/mongo_client.js:406:11
server_1 |     at process._tickDomainCallback (node.js:486:13) { [Error: Failed to connect to MongoDB.  Are you sure your configured Mongo instance is running?
server_1 |  Error details:
server_1 | [Error: failed to connect to [localhost:27017]]]
server_1 |   originalError: [Error: failed to connect to [localhost:27017]] }
hydro_server_1 exited with code 1
Gracefully stopping... (press Ctrl+C again to force)
Stopping hydro_db_1...

I'm not sure if this is a docker problem, a fig problem, a sane problem, or a sails problem. I also cannot figure out how to fix it.

Answer 1

Replace localhost with the mongo container IP, which you should be able to get from an environment variable that Docker will populate for you.

Docker will also set up an entry for db in /etc/hosts that you can use.

Answer 2

I'm running MongoDB through Docker, and I got it to work with this:

$ export dockerip="$(docker-machine ls | awk '{print $5}' | sed -n '2p' | sed 's/tcp:\/\///' | sed 's/\:2376//')"
$ mongo --host "$dockerip" --port 27017