centos7+docker+nginx安装过程

1、查找nginx镜像

[root@VM_0_4_centos ~]# docker search nginx

INDEX       NAME                                                             DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/nginx                                                  Official build of Nginx.                        8157      [OK]       
docker.io   docker.io/jwilder/nginx-proxy                                    Automated Nginx reverse proxy for docker c...   1296                 [OK]
docker.io   docker.io/richarvey/nginx-php-fpm                                Container running Nginx + PHP-FPM capable ...   530                  [OK]

2、拉取镜像

[root@VM_0_4_centos ~]# docker pull nginx
Using default tag: latest
Trying to pull repository docker.io/library/nginx ... 
latest: Pulling from docker.io/library/nginx


Digest: sha256:f6e250eaa36af608af9ed1e4751f063f0ca0f5310b1a5d3ad9583047256f37f6

3、查看镜像列表

[root@VM_0_4_centos ~]# docker images
REPOSITORY                             TAG                 IMAGE ID            CREATED             SIZE
docker.io/nginx                        latest              73acd1f0cfad        5 days ago          108.6 MB
docker.io/mysql                        latest              5195076672a7        5 days ago          371.4 MB

4、创建nginx挂载文件

cd /usr/local/software
mkdir nginx
cd nginx
mkdir www logs conf
cd conf
vi nginx.conf

    下面是nginx.conf的配置文件

#user  nginx;
worker_processes  1;


#error_log  /usr/local/nginx/logs/error.log crit;


#pid        /usr/local/nginx/logs/nginx.pid;


#Specifies the value for maximum file descriptors that can be opened by thisprocess.
worker_rlimit_nofile 65535;


events {
    use epoll;
    worker_connections 65535;
}


http {
    include       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"';


    charset  utf-8;
 
        server_names_hash_bucket_size 128;
        client_header_buffer_size 32k;
        large_client_header_buffers 4 32k;
        client_max_body_size 300m;


    sendfile        on;
    tcp_nopush     on;


    #keepalive_timeout  0;
    keepalive_timeout  65;


        tcp_nodelay on;
 
        client_body_buffer_size  512k;
        proxy_connect_timeout    5;
        proxy_read_timeout       60;
        proxy_send_timeout       5;
        proxy_buffer_size        16k;
        proxy_buffers            4 64k;
        proxy_busy_buffers_size 128k;
        proxy_temp_file_write_size 128k;


    gzip  on;
        gzip_min_length  1k;
        gzip_buffers     4 16k;
        gzip_http_version 1.1;
        gzip_comp_level 2;
        gzip_types       text/plainapplication/x-javascript text/css application/xml;
        gzip_vary on;


        #注：proxy_temp_path和proxy_cache_path指定的路径必须在同一分区
       # proxy_temp_path   /dataCache/proxy_temp_dir;
        #设置Web缓存区名称为cache_one，内存缓存空间大小为200MB，1天没有被访问的内容自动清除，硬盘缓存空间大小为5GB。
       # proxy_cache_path  /dataCache/proxy_cache_dir  levels=1:2   keys_zone=cache_one:200m inactive=1d max_size=3g;


    server {
        listen       80;
        server_name  *.*.*.*;
        charset utf-8;


        #       location ^~ /images/ {
        #    alias /images/;
        #}


        location ^~ /imgs/ {
            alias /files/imgs/;
        }


                location ^~ /docs/ {
            alias /files/docs/;
        }




        location / {
                        proxy_pass http://*.*.*.*:8761;
                        proxy_set_header Host $host;
                        proxy_set_header X-real-ip $remote_addr;
                        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }


        #error_page  404              /404.html;


        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
        
    }


}

5、启动容器

docker run -p 80:80 --name mynginx -v $PWD/www:/www -v $PWD/conf/nginx.conf:/etc/nginx/nginx.conf -v $PWD/logs:/wwwlogs  -d nginx  

6、查看容器是否启动

[root@VM_0_4_centos conf]# docker ps -a
CONTAINER ID        IMAGE                                  COMMAND                  CREATED             STATUS                      PORTS                      NAMES
1bc48fb9b696        nginx                                  "nginx -g 'daemon off"   17 minutes ago      Exited (1) 14 minutes ago                              mynginx

7、发现容器状态是Exited,打开日志查看

[root@VM_0_4_centos log]# docker logs -f  1bc48fb9b696
2018/03/19 16:13:13 [emerg] 1#1: mkdir() "/dataCache/proxy_temp_dir" failed (2: No such file or directory)
nginx: [emerg] mkdir() "/dataCache/proxy_temp_dir" failed (2: No such file or directory)
2018/03/19 16:16:40 [emerg] 1#1: mkdir() "/dataCache/proxy_temp_dir" failed (2: No such file or directory)
nginx: [emerg] mkdir() "/dataCache/proxy_temp_dir" failed (2: No such file or directory)
2018/03/19 16:31:01 [emerg] 1#1: open() "/usr/local/nginx/logs/error.log" failed (2: No such file or directory)
nginx: [emerg] open() "/usr/local/nginx/logs/error.log" failed (2: No such file or directory)

8、根据日志报错解决问题

vi /usr/local/software/nginx/conf/nginx.conf （上面贴出的配置文件代码，已经是修改后的）

9、重启容器（访问页面成功）

[root@VM_0_4_centos conf]# docker start mynginx
mynginx
[root@VM_0_4_centos ~]# docker ps
CONTAINER ID        IMAGE                               COMMAND                  CREATED             STATUS              PORTS                      NAMES
1bc48fb9b696        nginx                               "nginx -g 'daemon off"   48 minutes ago      Up 28 minutes       0.0.0.0:80->80/tcp         mynginx