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启动一个容器运行nginx:

[root@node121 ~]# docker search nginx

NAME                     DESCRIPTION                                     STARS     OFFICIAL  AUTOMATED

nginx                    Official build of Nginx.                        4927      [OK]      

jwilder/nginx-proxy      Automated Nginx reverse proxy for docker c...   901                  [OK]

 

下载 nginx镜像：

[root@node121 ~]# docker pull nginx

latest: Pulling from nginx

32734c6d04f6: Pull complete

1849b6667515: Pull complete

dd624ca8e781: Pull complete

9fc8fc300550: Pull complete

590494f17750: Pull complete

943e2fd86162: Pull complete

cd021197146a: Pull complete

93c50d378b4b: Pull complete

Digest:sha256:2b942f7dd01a57ceeb5985a0472a2f92735eb81a910dec70c2183c61fc54298c

Status: Downloaded newer image for nginx:latest

[root@node121 ~]# docker images

REPOSITORY         TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

nginx              latest             93c50d378b4b        2 daysago          181.6 MB

centos             latest             d4350798c2ee        2 weeksago         191.8 MB

 

运行nginx

[root@node121 ~]# docker run -d --name mynginx nginx

5df8eb0d89ad9785854fe0abd1d5b9d25917bb270d214a5450d9aae899276bf1

 

#docker ps -a | grep nginx

 

 

进入一个已运行的容器里:

获取一个容器的PID

#docker inspect --format "{{.State.Pid}}"  mynginx

32439

 

yum install util-linux

#nsenter  --target32439 --mount --uts --ipc --net --pid           #进入容器的另一种方法

 

在docker中的nginx配置目录：

cd /etc/nginx/nginx.conf

根目录：

            /usr/share/nginx/html

nginx配置目录;

cat /etc/nginx/conf.d/default.conf

 

root目录：/usr/share/nginx/html;

 

root@5df8eb0d89ad:/etc/nginx# cat /etc/nginx/nginx.conf

 

user  nginx;

worker_processes 1;

 

error_log /var/log/nginx/error.log warn;

pid       /var/run/nginx.pid;

 

 

events {

   worker_connections  1024;

}

 

 

http {

    include       /etc/nginx/mime.types;

   default_type application/octet-stream;

 

    log_format  main '$remote_addr - $remote_user [$time_local] "$request" '

                     '$status $body_bytes_sent "$http_referer" '

                     '"$http_user_agent" "$http_x_forwarded_for"';

 

    access_log  /var/log/nginx/access.log  main;

 

    sendfile        on;

   #tcp_nopush     on;

 

   keepalive_timeout  65;

 

    #gzip  on;

 

    include /etc/nginx/conf.d/*.conf;               #配置文件目录

}

 

root@5df8eb0d89ad:/etc/nginx/conf.d# cat/etc/nginx/conf.d/default.conf

server {

    listen       80;

   server_name  localhost;

 

    #charsetkoi8-r;

   #access_log /var/log/nginx/log/host.access.log main;

 

    location / {

        root   /usr/share/nginx/html;

        index  index.html index.htm;

    }

 

   #error_page  404              /404.html;

 

    # redirectserver error pages to the static page /50x.html

    #

    error_page   500 502 503 504  /50x.html;

    location =/50x.html {

        root   /usr/share/nginx/html;

    }

 

    # proxy the PHPscripts to Apache listening on 127.0.0.1:80

    #

    #location ~\.php$ {

    #    proxy_pass  http://127.0.0.1;

    #}

 

    # pass the PHPscripts to FastCGI server listening on 127.0.0.1:9000

    #

    #location ~\.php$ {

    #    root           html;

    #    fastcgi_pass   127.0.0.1:9000;

    #    fastcgi_index  index.php;

    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;

    #    include        fastcgi_params;

    #}

 

    # deny accessto .htaccess files, if Apache's document root

    # concurs withnginx's one

    #

    #location ~/\.ht {

    #    deny all;

    #}

}