代码之家 › 专栏 › 技术社区 › sonoerin

学习NodeJS和MongoDB Docker compose

docker-compose docker mongodb node.js

sonoerin · 技术社区 · 8 年前

我有一个使用MongoDB的NodeJS项目。我希望在Docker容器中运行此服务,但尽管我学习了许多示例,但这不会起作用。

这是我的 /heimdall_jwt/Dockerfile :

FROM node:9-alpine
WORKDIR /usr/src/app
COPY package.json /usr/src/app
RUN npm install
RUN npm install pm2 -g
COPY . /usr/src/app
EXPOSE 3000
CMD ["pm2-docker", "start", "process.json"]

这是我的 /heimdall_jwt/docker撰写。yml公司

version: '2'
    # Define the services/containers to be run
services:
    myapp: #name of your service
        build: ./ # specify the directory of the Dockerfile
        ports:
          - "3000:3000" #specify ports forwarding
        links:
          - database # link this service to the database service
        volumes:
          - .:/usr/src/app
        depends_on:
          - database    
    database: # name of the service
       image: mongo # specify image to build container from

我试着通过: $docker组装--构建

Building myapp
Step 1/8 : FROM node:9-alpine
...
Step 4/8 : RUN npm install
 ---> Using cache
 ---> befb91b1324c
...
Removing intermediate container 945eb0ad40d5
Successfully built b500f7ec9b89
Successfully tagged heimdalljwt_myapp:latest
Creating heimdalljwt_database_1 ...
Creating heimdalljwt_database_1 ... done
Creating heimdalljwt_myapp_1 ...
Creating heimdalljwt_myapp_1 ... done
Attaching to heimdalljwt_database_1, heimdalljwt_myapp_1
database_1  | 2017-11-25T21:15:39.001+0000 I INDEX    [initandlisten]    building index using bulk method; build may temporarily use up to 500 megabytes of RAM
database_1  | 2017-11-25T21:15:39.002+0000 I INDEX    [initandlisten] build index done.  scanned 0 total records. 0 secs
database_1  | 2017-11-25T21:15:39.003+0000 I COMMAND  [initandlisten] setting featureCompatibilityVersion to 3.4
database_1  | 2017-11-25T21:15:39.005+0000 I NETWORK  [thread1] waiting for connections on port 27017
myapp_1     | 0|heimdall | Error: Cannot find module 'bcryptjs'
myapp_1     | 0|heimdall |     at Function.Module._resolveFilename (module.js:542:15)
myapp_1     | 0|heimdall |     at Function.Module._load (module.js:472:25)
myapp_1     | 0|heimdall |     at Module.require (module.js:585:17)
myapp_1     | 0|heimdall |     at require (internal/module.js:11:18)
myapp_1     | 0|heimdall |     at Object.<anonymous> (/usr/src/app/user/User.js:2:14)
myapp_1     | 0|heimdall |     at Module._compile (module.js:641:30)
myapp_1     | 0|heimdall |     at Object.Module._extensions..js (module.js:652:10)
myapp_1     | 0|heimdall |     at Module.load (module.js:560:32)
myapp_1     | 0|heimdall |     at tryModuleLoad (module.js:503:12)
myapp_1     | 0|heimdall |     at Function.Module._load (module.js:495:3)
myapp_1     | 0|heimdall |     at Module.require (module.js:585:17)
myapp_1     | 0|heimdall |     at require (internal/module.js:11:18)
myapp_1     | 0|heimdall |     at Object.<anonymous> (/usr/src/app/user/UserController.js:12:12)
myapp_1     | 0|heimdall |     at Module._compile (module.js:641:30)
myapp_1     | 0|heimdall |     at Object.Module._extensions..js (module.js:652:10)
myapp_1     | 0|heimdall |     at Module.load (module.js:560:32)
myapp_1     | PM2        | App name:heimdall_app id:0 disconnected

我不确定这里发生了什么,但我猜测依赖项要么没有安装,要么没有复制到工作目录中。怎样

已更新 修改从原来的张贴,因为我仍在努力使这个工作。

1 回复 | 直到 8 年前

Robert 8 年前

你应该复制文件之后 npm install . 现在,您正在安装依赖项,然后复制所有内容,因此您实际上取消了该安装,并且您没有依赖项。

在Dockerfile中,您有:

...
RUN npm install
RUN npm install pm2 -g
COPY . /usr/src/app
...

它应该是:

...
COPY . /usr/src/app
RUN npm install
RUN npm install pm2 -g
...