码头集装箱运行不正常

Question

我正在为Symfony开发的基础Docker容器工作。我正在使用Docker Toolset for Windows。这里是我的Dockerfile：

FROM  centos:6.7 
MAINTAINER Reynier Perez <reynierpm@gmail.com> 

# basic env fix 
ENV    TERM xterm 

# Install REMI and EPEL repos 
RUN  yum update -y 
RUN  yum install -y mc wget yum-utils htop nano curl git 
RUN  wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm \ 
     && wget http://rpms.remirepo.net/enterprise/remi-release-6.rpm \ 
     && rpm -Uvh remi-release-6.rpm epel-release-latest-6.noarch.rpm 

RUN  yum-config-manager --enable remi-php70 
RUN  yum install -y php \ 
         php-common \ 
         php-cli \ 
         php-gd \ 
         php-intl \ 
         php-mbstring \ 
         php-mcrypt \ 
         php-opcache \ 
         php-pdo \ 
         php-pear \ 
         php-pecl-apcu \ 
         php-imagick \ 
         php-pecl-xdebug \ 
         php-xml \ 
         php-mysqlnd \ 
         php-soap \ 
         php-pdo-dblib 

RUN   curl -sS https://getcomposer.org/installer | php && mv composer.phar /usr/local/bin/composer 
RUN   curl -LsS http://symfony.com/installer -o /usr/local/bin/symfony && chmod a+x /usr/local/bin/symfony 

# Configure Services 
# Create a copy of default files and remove them 
# Apache 
RUN   cp /etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf.default 
RUN   rm -f /etc/httpd/conf/httpd.conf 
ADD   httpd.conf /etc/httpd/conf/ 
# Add default VirtualHost 
ADD   vhost.conf /etc/httpd/conf.d/ 
#PHP 
RUN   cp /etc/php.ini /etc/php.ini.default 
RUN   rm -f /etc/php.ini 
ADD   php.ini /etc/ 
# Add PHP info default script 
ADD   info.php /var/www/html 
# Setup permissions 
RUN   chown -R apache:root /var/www/html && \ 
      find /var/www/html -type d -print0 | xargs -0 chmod 2775 && \ 
      find /var/www/html -type f -print0 | xargs -0 chmod 0664 

# Mount Volumes 
VOLUME  /var/www/html 
WORKDIR  /var/www/html 

EXPOSE  80 

CMD   service httpd restart 

当我建立一个使用机器：

docker build --tag=symfony-dev . 

我得到这个消息：

Successfully built c7bc46e1f84c 
SECURITY WARNING: You are building a 
Docker image from Windows against a non-Windows Docker host. All files 
and directories added to build context will have '-rwxr-xr-x' 
permissions. It is recommended to double check and reset permissions 
for sensitive files and directories. 

下一步是使用运行容器：

docker run symfony-dev 

然后我试着看对于该容器中的信息：

docker inspect symfony-dev 

而且我得到了这样的JSON：

[ 
    { 
     "Id": "sha256:c7bc46e1f84c6d1a543c515d134184486dcb0e3e81c81f269ff1bb10791a3c9e", 
     "RepoTags": [ 
      "symfony-dev:latest" 
     ], 
     "RepoDigests": [], 
     "Parent": "sha256:db8021c4307e547ae7fee4afd3b964e72fde6422dbb8a5292b4bf441beb7d0b4", 
     "Comment": "", 
     "Created": "2016-04-02T02:16:45.891399606Z", 
     "Container": "e02be1ee3e12ef79bff0c0bbb7b7751f7368d5c06872df37a58439d21d69d57f", 
     "ContainerConfig": { 
      "Hostname": "72ba20be3774", 
      "Domainname": "", 
      "User": "", 
      "AttachStdin": false, 
      "AttachStdout": false, 
      "AttachStderr": false, 
      "ExposedPorts": { 
       "80/tcp": {} 
      }, 
      "Tty": false, 
      "OpenStdin": false, 
      "StdinOnce": false, 
      "Env": [ 
       "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", 
       "TERM=xterm" 
      ], 
      "Cmd": [ 
       "/bin/sh", 
       "-c", 
       "#(nop) CMD [\"/bin/sh\" \"-c\" \"service httpd restart\"]" 
      ], 
      "ArgsEscaped": true, 
      "Image": "sha256:db8021c4307e547ae7fee4afd3b964e72fde6422dbb8a5292b4bf441beb7d0b4", 
      "Volumes": { 
       "/var/www/html": {} 
      }, 
      "WorkingDir": "/var/www/html", 
      "Entrypoint": null, 
      "OnBuild": [], 
      "Labels": { 
       "License": "GPLv2", 
       "Vendor": "CentOS" 
      } 
     }, 
     "DockerVersion": "1.10.3", 
     "Author": "Reynier Perez \u003creynierpm@gmail.com\u003e", 
     "Config": { 
      "Hostname": "72ba20be3774", 
      "Domainname": "", 
      "User": "", 
      "AttachStdin": false, 
      "AttachStdout": false, 
      "AttachStderr": false, 
      "ExposedPorts": { 
       "80/tcp": {} 
      }, 
      "Tty": false, 
      "OpenStdin": false, 
      "StdinOnce": false, 
      "Env": [ 
       "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", 
       "TERM=xterm" 
      ], 
      "Cmd": [ 
       "/bin/sh", 
       "-c", 
       "service httpd restart" 
      ], 
      "ArgsEscaped": true, 
      "Image": "sha256:db8021c4307e547ae7fee4afd3b964e72fde6422dbb8a5292b4bf441beb7d0b4", 
      "Volumes": { 
       "/var/www/html": {} 
      }, 
      "WorkingDir": "/var/www/html", 
      "Entrypoint": null, 
      "OnBuild": [], 
      "Labels": { 
       "License": "GPLv2", 
       "Vendor": "CentOS" 
      } 
     }, 
     "Architecture": "amd64", 
     "Os": "linux", 
     "Size": 756378663, 
     "VirtualSize": 756378663, 
     "GraphDriver": { 
      "Name": "aufs", 
      "Data": null 
     } 
    } 
] 

但哪一个IP地址？我如何到达那个容器上的Apache？如果我运行命令ps如下：

docker ps 
CONTAINER ID  IMAGE    COMMAND    CREATED    STATUS    PORTS    NAMES 

我没有看到任何容器运行，为什么？我在这里错过了什么？

UPDATE

继@ cricket_007建议，我已经在官方Dockerfile添加httpd_foreground作为Apache和现在我看到的容器中运行，如果我跑docker ps但我仍然有几个问题：

• 如果我运行容器进入bash作为docker run -it --name=symfony symfony-dev bash我得到这个错误：new state of nil is invalid，我不知道如何解决。
• 在另一边，我看到172.17.0.2的IP地址，但我不能达到它作为Apache的意义http://172.17.0.2/info.php我有几个可疑的有关firewalld和/或SELinux的，但我不知道

我可以就这两个问题提供一些建议吗？

Answer 1

您的容器在启动后即将死亡，因为您的命令service httpd restart未保持打开任何前台进程。

您可以将tail -f Apache日志文件（例如作为CMD）与RUN一起用于重新启动服务器，就像您现在一样。