我试图在docker容器中运行我的django应用程序.我正在使用uWsgi来为django应用程序提供服务,并且还有一个芹菜工作者在后台运行.这些过程由supervisord启动.

我遇到的问题是我无法在端口上看到我希望看到它的应用程序.我暴露端口8080并在8080上运行uwsgi进程,但无法在浏览器中找到我的应用程序在IP地址$(boot2docker ip)：8080.我刚收到谷歌Chrome浏览器’这个网页不可用’. (我使用的是Mac,所以我需要获取boot2docker的ip地址).容器显然正在运行,并报告我的uwsgi和芹菜进程也都成功运行.

当我运行docker exec CONTAINER_ID curl localhost：8080时,我得到一个响应

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    21    0    21    0     0   3150      0 --:--:-- --:--:-- --:--:--  3500

…所以看起来容器正在接受端口8080上的连接.

当我运行docker exec CONTAINER_ID netstat -lpn | grep：8080时,我得到tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 11 / uwsgi

当我运行docker检查CONTAINER_ID时,我得到以下内容：

[{
    "AppArmorProfile": "","Args": [
        "-c","/home/docker/code/supervisor-app.conf"
    ],"Config": {
        "AttachStderr": true,"AttachStdin": false,"AttachStdout": true,"Cmd": [
            "supervisord","-c","/home/docker/code/supervisor-app.conf"
        ],"cpuShares": 0,"cpuset": "","Domainname": "","Entrypoint": null,"Env": [
            "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","env=staging"
        ],"ExposedPorts": {
            "8080/tcp": {}
        },"Hostname": "21443d8a16df","Image": "vitru","Memory": 0,"MemorySwap": 0,"Networkdisabled": false,"OnBuild": null,"OpenStdin": false,"PortSpecs": null,"StdinOnce": false,"Tty": false,"User": "","Volumes": null,"WorkingDir": ""
    },"Created": "2014-12-27T01:00:22.390065668Z","Driver": "aufs","ExecDriver": "native-0.2","HostConfig": {
        "Binds": null,"CapAdd": null,"CapDrop": null,"ContainerIDFile": "","Devices": [],"Dns": null,"DnsSearch": null,"ExtraHosts": null,"Links": null,"LxcConf": [],"NetworkMode": "bridge","PortBindings": {},"Privileged": false,"PublishAllPorts": false,"RestartPolicy": {
            "MaximumRetryCount": 0,"Name": ""
        },"SecurityOpt": null,"VolumesFrom": null
    },"HostnamePath": "/mnt/sda1/var/lib/docker/containers/21443d8a16df8e2911ae66d5d31341728d76ae080e068a5bb1dd48863febb607/hostname","HostsPath": "/mnt/sda1/var/lib/docker/containers/21443d8a16df8e2911ae66d5d31341728d76ae080e068a5bb1dd48863febb607/hosts","Id": "21443d8a16df8e2911ae66d5d31341728d76ae080e068a5bb1dd48863febb607","Image": "de52fbada520519793e348b60b608f7db514eef7fd436df4542710184c1ecb7f","MountLabel": "","Name": "/suspicIoUs_fermat","NetworkSettings": {
        "Bridge": "docker0","Gateway": "172.17.42.1","IPAddress": "172.17.0.87","IPPrefixLen": 16,"MacAddress": "02:42:ac:11:00:57","PortMapping": null,"Ports": {
            "8080/tcp": null
        }
    },"Path": "supervisord","ProcessLabel": "","ResolvConfPath": "/mnt/sda1/var/lib/docker/containers/21443d8a16df8e2911ae66d5d31341728d76ae080e068a5bb1dd48863febb607/resolv.conf","State": {
        "ExitCode": 0,"FinishedAt": "0001-01-01T00:00:00Z","Paused": false,"Pid": 16230,"Restarting": false,"Running": true,"StartedAt": "2014-12-27T01:00:22.661588847Z"
    },"Volumes": {},"VolumesRW": {}
}
]

作为一个不太熟悉Docker的人,我不太清楚这一切意味着什么.也许有一个线索,为什么我无法连接到我的服务器？

这是我的Dockerfile,所以你可以看看我是否在做那些明显错误的事情.

FROM ubuntu:14.04

# Get most recent apt-get
RUN apt-get -y update

# Install python and other tools
RUN apt-get install -y tar git curl nano wget dialog net-tools build-essential
RUN apt-get install -y python3 python3-dev python-distribute
RUN apt-get install -y Nginx supervisor
# Get python3 version of pip
RUN apt-get -y install python3-setuptools
RUN easy_install3 pip

RUN pip install uwsgi

RUN apt-get install -y python-software-properties

# Install GEOS
RUN apt-get -y install binutils libproj-dev gdal-bin

# Install node.js
RUN apt-get install -y nodejs npm

# Install postgresql dependencies 
RUN apt-get update && \
    apt-get install -y postgresql libpq-dev && \
    rm -rf /var/lib/apt/lists

# Install pylibmc dependencies
RUN apt-get update
RUN apt-get install -y libmemcached-dev zlib1g-dev libssl-dev

ADD . /home/docker/code

# Setup config files
RUN ln -s /home/docker/code/supervisor-app.conf /etc/supervisor/conf.d/

# Create virtualenv and run pip install

RUN pip install -r /home/docker/code/vitru/requirements.txt

# Create directory for logs
RUN mkdir -p /var/logs

# Set environment as staging
ENV env staging

EXPOSE 8080

# The supervisor conf file starts uwsgi on port 8080 and starts a celeryd worker
CMD ["supervisord","/home/docker/code/supervisor-app.conf"]

您需要通过-p标志为docker run命令“发布”端口：
https://docs.docker.com/reference/run/#expose-incoming-ports

如果你使用它,在fig.yml文件中的expose和ports指令之间有一个类似的区别.