docker node项目 连接mongodb

在弄docker部署node项目的时候遇到了连接mongdb的问题，记录一下问题解决办法

一、Docker 安装 MongoDB

1.查找Docker Hub上的mongo镜像

[root@VM_49_93_centos mongo]# docker search mongo

NAME                             DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
mongo                            MongoDB document databases provide high av...   4194                [OK]                
mongo-express                    Web-based MongoDB admin interface, written...   225                 [OK]                
tutum/mongodb                    MongoDB Docker image – listens in port 270...   218                                     [OK]
mvertes/alpine-mongo             light MongoDB container                         68                                      [OK]
mongoclient/mongoclient          Official docker image for Mongoclient, fea...   46                                      [OK]
bitnami/mongodb                  Bitnami MongoDB Docker Image                    30                                      [OK]
frodenas/mongodb                 A Docker Image for MongoDB                      17                                      [OK]
mongooseim/mongooseim            Small docker image for MongooseIM - robust...   15                                      
mongooseim/mongooseim-docker     MongooseIM server the latest stable version     10                                      [OK]
centos/mongodb-26-centos7        MongoDB NoSQL database server                   5                                       
istepanov/mongodump              Docker image with mongodump running as a c...   5                                       [OK]
centos/mongodb-32-centos7        MongoDB NoSQL database server                   4                                       
eses/mongodb_exporter            mongodb exporter for prometheus                 4                                       [OK]
khezen/mongo                     MongoDB Docker image supporting RocksDB st...   4                                       [OK]
cvallance/mongo-k8s-sidecar      Kubernetes side car to setup and maintain ...   3                                       [OK]
ekesken/mongo                    docker image for mongo that is configurabl...   1                                       [OK]
19hz/mongo-container             Mongodb replicaset for coreos                   1                                       [OK]
alino/coreos-mongodb-cluster     mongo 3.0                                       1                                       [OK]
extremeprog/mongo-sites-api      mongo-sites-api automated build                 1                                       [OK]
openshift/mongodb-24-centos7     DEPRECATED: A Centos7 based MongoDB v2.4 i...   1                                       
circleci/mongo                   MongoDB document databases provide high av...   1                                       
os33/go-mongo                    go and mongo package for testing                0                                       
quilt/mongo                      MongoDB container for quilt.io                  0                                       [OK]
gebele/mongodb                   mongodb                                         0                                       [OK]
targetprocess/mongodb_exporter   MongoDB exporter for prometheus                 0                                       [OK]

2、拉取官方的镜像

docker pull mongo

3、运行容器

mkdir -p ~/mongo/db
cd ~/mongo
docker run -p 27018:27017 -v $PWD/db:/data/db -d --name mongodb mongo:latest

4、操作mongodb

docker exec -it ‘mongo CONTAINER ID’ bash
cd /bin
mongo

5、修改项目中连接mongodb (把mongodb连接地址localhost:27017更改为运行自己项目docker镜像时 --link指定另一个容器)

DB_URL = 'mongodb://admin:sunjianping@localhost:27017/changxiang';

DB_URL = 'mongodb://admin:sunjianping@mongodb/changxiang';

6、运行自己的node项目（myp 为自己项目的docker镜像 ）

docker run -i -t --name myp --link=mongodb:mongodb myp:1.2 /bin/bash