Docker应用程序处于退出（0）状态(Docker app in Exited (0) status)

 我正在尝试在Docker容器中运行一个小服务器应用程序 
 
 index.js 
 
var server_port = 3111
, http     = require('http')
, mosca    = require('mosca')
, dispatch = require('dispatch')
, httpServ = http.createServer(
    dispatch({
        '/': function(req, res, next){
            console.log('in route');
        }
    })
);

httpServ.listen(server_port, function() {
    console.log("listening on", server_port);
});
 
 的package.json 
 
{
  "dependencies": {
    "dispatch": "^1.0.0"
  },
  "description": "",
  "engines": {
    "node": ">= 0.10.4"
  },
  "main": "index.js",
  "name": "SimpleServer",
  "version": "0.0.1"
}
 
 Dockerfile 
 
FROM    centos:centos6

# Enable EPEL for Node.js
RUN     rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
# Install Node.js and npm
RUN     yum install -y npm

# Install nodemon
RUN npm install -g nodemon

# Bundle app source
COPY . /src
# Install app dependencies
RUN cd /src; npm install

# Expose port
EXPOSE  3111

# Run app using nodemon
RUN echo "***" && pwd && echo "***"
CMD ["nodemon", "/src/index.js"]
 
 在Docker终端中，在SimpleServer工作目录中，命令$ docker build -t test_simple . Successfully built 43c8806574f4 。 到目前为止在容器中运行映像的任何尝试，例如$ docker run -p 3111 test_simple导致代码退出，服务器没有运行。 
 
$ docker run -p 3111 test_simple
19 Aug 07:22:56 - [nodemon] v1.4.1
19 Aug 07:22:56 - [nodemon] to restart at any time, enter `rs`
19 Aug 07:22:56 - [nodemon] watching: *.*
19 Aug 07:22:56 - [nodemon] starting `node /src/index.js`
Master: 16
19 Aug 07:22:57 - [nodemon] clean exit - waiting for changes before restart

$ docker run -d -P test_simple node /src/index.js
a0a56ec5c13161bc37b523be0e32edec0a43ca82e7db88ddb2a91688f745b24b

$ docker ps -l
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                     PORTS               NAMES
a0a56ec5c131        test_simple         "node /src/index.js"   6 seconds ago       Exited (0) 6 seconds ago                       jolly_bohr
 
 我不知道发生了什么，以及服务器退出的原因。 任何反馈都表示赞赏。 谢谢。 

I'm trying to run a little server application in a Docker container
 
index.js
 
var server_port = 3111
, http     = require('http')
, mosca    = require('mosca')
, dispatch = require('dispatch')
, httpServ = http.createServer(
    dispatch({
        '/': function(req, res, next){
            console.log('in route');
        }
    })
);

httpServ.listen(server_port, function() {
    console.log("listening on", server_port);
});
 
package.json
 
{
  "dependencies": {
    "dispatch": "^1.0.0"
  },
  "description": "",
  "engines": {
    "node": ">= 0.10.4"
  },
  "main": "index.js",
  "name": "SimpleServer",
  "version": "0.0.1"
}
 
Dockerfile
 
FROM    centos:centos6

# Enable EPEL for Node.js
RUN     rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
# Install Node.js and npm
RUN     yum install -y npm

# Install nodemon
RUN npm install -g nodemon

# Bundle app source
COPY . /src
# Install app dependencies
RUN cd /src; npm install

# Expose port
EXPOSE  3111

# Run app using nodemon
RUN echo "***" && pwd && echo "***"
CMD ["nodemon", "/src/index.js"]
 
In the Docker Terminal, and within the SimpleServer working directory, the command $ docker build -t test_simple . resulted in Successfully built 43c8806574f4. Any attempt so far to run the image in a container, such as $ docker run -p 3111 test_simple consistently results in the code exiting, and the server not running.
 
$ docker run -p 3111 test_simple
19 Aug 07:22:56 - [nodemon] v1.4.1
19 Aug 07:22:56 - [nodemon] to restart at any time, enter `rs`
19 Aug 07:22:56 - [nodemon] watching: *.*
19 Aug 07:22:56 - [nodemon] starting `node /src/index.js`
Master: 16
19 Aug 07:22:57 - [nodemon] clean exit - waiting for changes before restart

$ docker run -d -P test_simple node /src/index.js
a0a56ec5c13161bc37b523be0e32edec0a43ca82e7db88ddb2a91688f745b24b

$ docker ps -l
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                     PORTS               NAMES
a0a56ec5c131        test_simple         "node /src/index.js"   6 seconds ago       Exited (0) 6 seconds ago                       jolly_bohr
 
I cannot tell what's going on, and why the server is exiting. Any feedback is appreciated. Thanks.

原文：https://stackoverflow.com/questions/32089086