dockerfile - Docker Container Failed to Run -

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the dockerfile application follows

               # tells docker base image start.                node                 # adds files host file system docker container.                  add . /app                 # sets current working directory subsequent instructions                workdir /app                  run npm install                 run npm install -g bower                 run bower install --allow-root                 run npm install -g nodemon                  #expose port allow external access                 expose 9000 9030 35729                  # start mean application                 cmd ["nodemon", "server.js"]

the docker-compose.yml file follows 

                          web:                                  build: .                                  links:                                             - db                                   ports:                                            - "9000:9000"                                            - "9030:9030"                                            - "35729:35729"                                    db:                                            image: mongo:latest                                            ports:                                                    - "27017:27017"

and error generated while running follows:-

   web_1  | [nodemon] 1.11.0    web_1  | [nodemon] restart @ time, enter `rs`    web_1  | [nodemon] watching: *.*    web_1  | [nodemon] starting `node server.js`    web_1  | server running @ http://127.0.0.1:9000    web_1  | server running @ https://127.0.0.1:9030    web_1  |     web_1  | /app/node_modules/mongodb/lib/server.js:261    web_1  |         process.nexttick(function() { throw err; })    web_1  |                                       ^   web_1  | mongoerror: failed connect server [localhost:27017] on first connect    web_1  |     @ pool.<anonymous> (/app/node_modules/mongodb-core/lib/topologies/server.js:313:35)   web_1  |     @ emitone (events.js:96:13)   web_1  |     @ pool.emit (events.js:188:7)   web_1  |     @ connection.<anonymous> (/app/node_modules/mongodb-core/lib/connection/pool.js:271:12)  web_1  |     @ connection.g (events.js:291:16)  web_1  |     @ emittwo (events.js:106:13)  web_1  |     @ connection.emit (events.js:191:7)  web_1  |     @ socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:165:49) web_1  |     @ socket.g (events.js:291:16) web_1  |     @ emitone (events.js:96:13) web_1  |     @ socket.emit (events.js:188:7) web_1  |     @ emiterrornt (net.js:1281:8) web_1  |     @ _combinedtickcallback (internal/process/next_tick.js:74:11) web_1  |     @ process._tickcallback (internal/process/next_tick.js:98:9) web_1  | [nodemon] app crashed - waiting file changes before starting...

i have uploaded image application @ dockerhub crissi/airlineinsurance.

in docker can't connect other container via localhost because each container independend , has own ip. should use container_name:port. in example should db:27017 connect nodejs application in 'web' mongodb in 'db'.

so it's not problem of dockerfile. it's connection url nodejs application points localhost instead of db.


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