[英]Docker Compose : NodeJS + MongoDB
I can't make my docker compose work.我不能让我的 docker compose 工作。
Here's my dockerfile:这是我的码头文件:
FROM node:0.12
RUN apt-get update -qq && apt-get install -y build-essential libpq-dev
RUN mkdir /myapp
WORKDIR /myapp
ADD . /myapp
RUN npm install
Sorry @gettho.child, I accepted your answer too quickly. 对不起@ gettho.child,我太快接受了你的回答。 I thought it was working but it wasn't.
我认为它有效,但事实并非如此。 I'll report here my final solution since I have been struggling quite some to achieve it.
我将在这里报告我的最终解决方案,因为我一直在努力实现它。
Dockerfile
: Dockerfile
:
FROM node:0.12
RUN apt-get update -qq && apt-get install -y build-essential libpq-dev libkrb5-dev
RUN mkdir /myapp
WORKDIR /myapp
ADD package.json /myapp/package.json
RUN npm install
ADD . /myapp
docker-compose.yml
: docker-compose.yml
:
db:
image: mongo
ports:
- "27017:27017"
command: "--smallfiles --logpath=/dev/null"
web:
build: .
command: node app.js
volumes:
- .:/myapp
ports:
- "3000:3000"
links:
- db
environment:
PORT: 3000 # this is optional, allows express to use process.env.PORT instead of a raw 3000
And the interesting app.js extracts: 而有趣的app.js提取:
var MONGO_DB;
var DOCKER_DB = process.env.DB_PORT;
if ( DOCKER_DB ) {
MONGO_DB = DOCKER_DB.replace( 'tcp', 'mongodb' ) + '/myapp';
} else {
MONGO_DB = process.env.MONGODB;
}
var retry = 0;
mongoose.connect(MONGO_DB);
app.listen(process.env.PORT || 3000);
Regarding the process.env.DB_PORT
I've tried many things around. 关于
process.env.DB_PORT
我尝试了很多东西。 If it doesn't work out-of-the-box, I suggest to console.log(process.env);
如果它没有开箱即用,我建议使用
console.log(process.env);
and look for mongo's IP. 并寻找mongo的IP。
The final URL should look like: mongodb://172.17.0.76:27017/myapp
最终的URL应如下所示:
mongodb://172.17.0.76:27017/myapp
Good luck, it is worth it, Docker's awesome! 祝你好运,值得拥有,Docker真棒!
EDIT: 编辑:
If the above works, I now found a techno-agnostic workflow by running: 如果上述工作正常,我现在通过运行以下方法找到了与技术无关的工作流程:
docker-compose run web /bin/bash
printenv
printenv
I hope this is not too much self promotion but I wrote a double article on the topic which may help some of the readers: https://augustin-riedinger.fr/en/resources/using-docker-as-a-development-environment-part-1/ 我希望这不是太多的自我推销,但我写了一篇关于这个主题的双重文章,可能会对一些读者有所帮助: https : //augustin-riedinger.fr/en/resources/using-docker-as-a-development-环境部分-1 /
Cheers 干杯
确保'Server.js'文件中的mongoDB IP(和端口)设置为'PORT_27017_TCP_ADDR'(也检查端口) - 运行'docker exec {web app container id} env'时可以找到。
Since we use docker-compose.yml<\/code> and for reliable connection web service with
db<\/code> (mondoDB in this case) the final
MONGO_DB<\/code> connection string should look like (without authorization and additional args) as the following:
由于我们使用
docker-compose.yml<\/code>并且为了与
db<\/code> (在本例中为 mondoDB)建立可靠的连接 web 服务,最终的
MONGO_DB<\/code>连接字符串应如下所示(无需授权和附加参数):
mongodb://db:27017/myapp
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.