docker stack 部署nginx

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2018/7/29_第1次修改                       ccb_warlock

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nginx作为市场占有率较高的http和反向代理服务，各种需要用到http和网页服务的项目经常需要用nginx做反代，故通过docker部署nginx也是最近的工作之一，故整理完部署后进行记录。

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 一、前提条件

• 环境中已经部署了docker swarm（http://www.cnblogs.com/straycats/p/8978135.html）
• 最好也部署了portainer（http://www.cnblogs.com/straycats/p/8978201.html）
• 默认服务器为IP：192.168.12.1
• 默认swarm创建了network：my-net

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 二、部署nginx
 2.1 创建映射的本地目录

mkdir -p /usr/docker-vol/nginx/conf/conf.d
mkdir -p /usr/docker-vol/nginx/logs
mkdir -p /usr/docker-vol/nginx/ssl

 2.2 创建配置文件

# 创建nginx.conf

vi /usr/docker-vol/nginx/conf/nginx.conf

# 将nginx.cnf文件上传到/usr/docker-vol/nginx/conf目录下

user nginx;
worker_processes auto;
pid /run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    keepalive_timeout  65;

    sendfile on;
    tcp_nopush     on;
    gzip  on;
    # gzip_disable "msie6";

    # 指定日志为json格式，键值对的格式
    log_format access_log_json '{"user_ip":"$http_x_real_ip","lan_ip":"$remote_addr","log_time":"$time_iso8601","user_req":"$request","http_code":"$status","body_bytes_sents":"$body_bytes_sent","req_time":"$request_time","user_ua":"$http_user_agent"}';

    # 限制上传文件的大小（M）
    # types_hash_max_size 2048;

    # include的内容放在log_format之后日志格式的定义才生效
    include /etc/nginx/conf.d/*.conf;

 2.3 配置反代
 # 编辑反代配置文件

vi /usr/docker-vol/nginx/conf/conf.d/www.conf

# 将下面的内容添加到www.conf文件内，wq保存

server {
    listen 80;
    server_name mydomain.com www.mydomain.com;

    autoindex on;
    autoindex_localtime on;
    access_log  off;
    error_log   off;

    location ^~ /image/  {
        client_max_body_size   10m;
        proxy_pass http://192.168.12.1:5000/image/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header REMOTE-HOST $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location / {
        proxy_pass  https://192.168.12.1:5001;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        root   html;
        index  index.html index.htm;
    }
}

 2.4 增加证书及密钥文件
将证书文件和密钥文件放到/usr/docker-vol/nginx/ssl目录下。

 2.5 配置nginx-stack.yml

cd
vim nginx-stack.yml

# 编辑nginx-stack.yml，wq保存

version: '3.6'
services:

  nginx:
    image: nginx:1.14.0-alpine
    environment:
      - TZ=Asia/Shanghai
    volumes:
      # nginx的配置文件
      - /usr/docker-vol/nginx/conf/nginx.conf:/etc/nginx/nginx.conf
      - /usr/docker-vol/nginx/conf/conf.d/:/etc/nginx/conf.d/
      - /usr/docker-vol/nginx/ssl/:/etc/nginx/ssl/
      - /usr/docker-vol/nginx/logs/:/var/log/nginx/
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure
      update_config:
        parallelism: 1
        delay: 10s
        monitor: 30s
        max_failure_ratio: 0.1
        order: start-first
    ports:
      - 80:80
      - 443:443
    networks:
      - my-net

networks:
  my-net:
    external: true

PS.获取请求真实IP的配置方案

docker service create --name nginx \
  --mount type=bind,source=/usr/docker-vol/nginx/conf/nginx.conf,target=/etc/nginx/nginx.conf,readonly=false \
  --mount type=bind,source=/usr/docker-vol/nginx/conf/conf.d/,target=/etc/nginx/conf.d/,readonly=false \
  --mount type=bind,source=/usr/docker-vol/nginx/ssl,target=/etc/nginx/ssl,readonly=false \
  --mount type=bind,source=/usr/docker-vol/nginx/logs/,target=/var/log/nginx/,readonly=false \
  -p "mode=host,target=80,published=80" \
  -p "mode=host,target=443,published=443" \
  --replicas 1 \
  --restart-condition any \
  --network gm-net \
  --update-parallelism 1 \
  --update-delay 3s \
  --update-monitor 10s \
  --update-max-failure-ratio 0.1 \
  --update-order stop-first \
  --limit-cpu 0.5 \
  --limit-memory 300M \
  nginx:1.14.0-alpine

参考资料：

1. https://www.cnblogs.com/wwzyy/p/8337965.html

2. http://www.runoob.com/docker/docker-install-nginx.html

3. http://www.ttlsa.com/nginx/use-nginx-proxy/

4. https://blog.csdn.net/bolg_hero/article/details/42105987