无法从docker映射的端口访问docker容器

我创建了一个docker容器,但无法在docker映射的端口上运行它(http:// localhost:3000).以下是我在我的应用中使用的泊坞窗配置的详细信息.

Docker版本:17.05.0-ce

Os:ubuntu 16.04

我的Dockerfile:

FROM node:boron
# Create app directory
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app

COPY   . /usr/src/app

RUN     npm install -g bower 
RUN     npm install -g grunt-cli
RUN     npm install 
RUN     bower install --allow-root
#RUN     grunt --force
EXPOSE 3000
CMD     ["grunt", "serve"]

创建docker容器:

docker build -t viki76/ng-app .

运行容器:

docker run  -p 3000:3000 -d viki76/ng-app

docker ps:

CONTAINER ID   IMAGE         COMMAND       CREATED    STATUS     PORTS  

21541171d884   viki/ng-app   "grunt serve"  10 min ago Up    0.0.0.0:3000->3000/tcp

编辑:

更新了Dockerfile配置

EXPOSE 9000

$ docker run -p 9000:9000 viki76/ng-app

Running "serve" task

Running "clean:server" (clean) task
>> 1 path cleaned.

Running "wiredep:app" (wiredep) task

Running "wiredep:test" (wiredep) task

Running "concurrent:server" (concurrent) task

Running "copy:styles" (copy) task
Copied 2 files

Done, without errors.


Execution Time (2017-05-17 13:00:13 UTC-0)
loading tasks               189ms  ?????????????????????????????? 88%
loading grunt-contrib-copy   11ms  ?? 5%
copy:styles                  16ms  ??? 7%
Total 216ms

Running "postcss:server" (postcss) task
>> 2 processed stylesheets created.

Running "connect:livereload" (connect) task
Started connect web server on http://localhost:9000

Running "watch" task
Waiting...

来自Gruntfile.js

connect: {
  options: {
    port: 9000,
    // Change this to '0.0.0.0' to access the server from outside.
    hostname: '0.0.0.0',
    livereload: 35729
  },

请帮我修理一下.谢谢