Docker 安装 nginx 并且配置反向代理遇到的坑-陌上烟雨遥

拉取docker nginx 容器就跳过了；

首先进行安装，，安装的时候使用
启动：


docker run --name nginx-dev -p <span class="token number">80</span>:80 -d nginx 
docker run --name nginx-dev -p <span class="token number">80</span>:80 -d nginx 
docker run --name nginx-dev -p 80:80 -d nginx

其中
--name后跟你给容器取的名字，任意即可

-p后面跟端口映射规则，比如

18080：80表示把外部宿主机的18080映射到容器的80即可，容器内部使用80访问nginx，宿主机使用18080访问容器，

-d表示后台运行；

配置：
首先需要进入容器


docker <span class="token builtin class-name">exec</span> -it nginx-dev bin/bash 
docker <span class="token builtin class-name">exec</span> -it nginx-dev bin/bash 
docker exec -it nginx-dev bin/bash

切换到配置文件夹


cd etc<span class="token operator">/</span>nginx<span class="token operator">/</span>conf<span class="token punctuation">.</span>d 
cd etc<span class="token operator">/</span>nginx<span class="token operator">/</span>conf<span class="token punctuation">.</span>d 
cd etc/nginx/conf.d

安装vim


<span class="token function">apt-get</span> update 
<span class="token function">apt-get</span> update 
apt-get update


<span class="token function">apt-get</span> <span class="token function">install</span> <span class="token function">vim</span> 
<span class="token function">apt-get</span> <span class="token function">install</span> <span class="token function">vim</span> 
apt-get install vim

然后就可以对default.conf配置文件进行编辑了，编辑结束以后重启容器；

遇到的坑：
明明配置好了，但是却始终无法实现反向代理；
原因是,把常规配置nginx和docker的配置方法弄混淆了，docker相当于一个独立的系统，所以我使用回环地址的时候，并不会像我在外面使用nginx一样访问到对应的服务，而是在容器内部的回环地址，所以访问不到；
这里需要给出宿主机的具体host和port；
*~~错误代码如下~~ *


 server <span class="token punctuation">{<!-- --></span> listen <span class="token number">80</span><span class="token punctuation">;</span> server_name localhost<span class="token punctuation">;</span>      error_page <span class="token number">500</span> <span class="token number">502</span> <span class="token number">503</span> <span class="token number">504</span> /50x.html<span class="token punctuation">;</span> location <span class="token operator">=</span> /50x.html <span class="token punctuation">{<!-- --></span> root html<span class="token punctuation">;</span> <span class="token punctuation">}</span> location /user/ <span class="token punctuation">{<!-- --></span> client_max_body_size 300m<span class="token punctuation">;</span> proxy_connect_timeout 300s<span class="token punctuation">;</span> proxy_send_timeout 300s<span class="token punctuation">;</span> proxy_read_timeout 300s<span class="token punctuation">;</span> proxy_pass http://127.0.0.1:18081<span class="token punctuation">;</span> <span class="token punctuation">}</span> 
 server <span class="token punctuation">{<!-- --></span> listen <span class="token number">80</span><span class="token punctuation">;</span> server_name localhost<span class="token punctuation">;</span>      error_page <span class="token number">500</span> <span class="token number">502</span> <span class="token number">503</span> <span class="token number">504</span> /50x.html<span class="token punctuation">;</span> location <span class="token operator">=</span> /50x.html <span class="token punctuation">{<!-- --></span> root html<span class="token punctuation">;</span> <span class="token punctuation">}</span> location /user/ <span class="token punctuation">{<!-- --></span> client_max_body_size 300m<span class="token punctuation">;</span> proxy_connect_timeout 300s<span class="token punctuation">;</span> proxy_send_timeout 300s<span class="token punctuation">;</span> proxy_read_timeout 300s<span class="token punctuation">;</span> proxy_pass http://127.0.0.1:18081<span class="token punctuation">;</span> <span class="token punctuation">}</span> 
 server { listen 80; server_name localhost;      error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } location /user/ { client_max_body_size 300m; proxy_connect_timeout 300s; proxy_send_timeout 300s; proxy_read_timeout 300s; proxy_pass http://127.0.0.1:18081; }

正确的写法：


 server <span class="token punctuation">{<!-- --></span> listen <span class="token number">80</span><span class="token punctuation">;</span> server_name localhost<span class="token punctuation">;</span>      error_page <span class="token number">500</span> <span class="token number">502</span> <span class="token number">503</span> <span class="token number">504</span> /50x.html<span class="token punctuation">;</span> location <span class="token operator">=</span> /50x.html <span class="token punctuation">{<!-- --></span> root html<span class="token punctuation">;</span> <span class="token punctuation">}</span> location /user/ <span class="token punctuation">{<!-- --></span> client_max_body_size 300m<span class="token punctuation">;</span> proxy_connect_timeout 300s<span class="token punctuation">;</span> proxy_send_timeout 300s<span class="token punctuation">;</span> proxy_read_timeout 300s<span class="token punctuation">;</span> proxy_pass http://47.121.23.142:18081<span class="token punctuation">;</span> <span class="token punctuation">}</span> 
 server <span class="token punctuation">{<!-- --></span> listen <span class="token number">80</span><span class="token punctuation">;</span> server_name localhost<span class="token punctuation">;</span>      error_page <span class="token number">500</span> <span class="token number">502</span> <span class="token number">503</span> <span class="token number">504</span> /50x.html<span class="token punctuation">;</span> location <span class="token operator">=</span> /50x.html <span class="token punctuation">{<!-- --></span> root html<span class="token punctuation">;</span> <span class="token punctuation">}</span> location /user/ <span class="token punctuation">{<!-- --></span> client_max_body_size 300m<span class="token punctuation">;</span> proxy_connect_timeout 300s<span class="token punctuation">;</span> proxy_send_timeout 300s<span class="token punctuation">;</span> proxy_read_timeout 300s<span class="token punctuation">;</span> proxy_pass http://47.121.23.142:18081<span class="token punctuation">;</span> <span class="token punctuation">}</span> 
 server { listen 80; server_name localhost;      error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } location /user/ { client_max_body_size 300m; proxy_connect_timeout 300s; proxy_send_timeout 300s; proxy_read_timeout 300s; proxy_pass http://47.121.23.142:18081; }

这样请求——>宿主机p80端口——>被映射到docker容器的80端口——>容器80对应nginx服务器——>nginx监听80对请求进行转发——>转发到宿主机对应的地址和端口——>servlet

有理解错误的地方欢迎大佬指正；

挂载式的配置文件后续更新；太晚了睡觉；。。。。


 docker run <span class="token operator">-</span>id <span class="token operator">--</span>name nginx<span class="token operator">-</span>dev <span class="token operator">-</span>p <span class="token number">80</span><span class="token punctuation">:</span><span class="token number">80</span> <span class="token operator">-</span>p <span class="token number">443</span><span class="token punctuation">:</span><span class="token number">443</span> <span class="token operator">-</span>v <span class="token operator">/</span>data<span class="token operator">/</span>docker<span class="token operator">-</span>config<span class="token operator">/</span>nginx<span class="token punctuation">:</span><span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span>conf<span class="token punctuation">.</span>d nginx 
 docker run <span class="token operator">-</span>id <span class="token operator">--</span>name nginx<span class="token operator">-</span>dev <span class="token operator">-</span>p <span class="token number">80</span><span class="token punctuation">:</span><span class="token number">80</span> <span class="token operator">-</span>p <span class="token number">443</span><span class="token punctuation">:</span><span class="token number">443</span> <span class="token operator">-</span>v <span class="token operator">/</span>data<span class="token operator">/</span>docker<span class="token operator">-</span>config<span class="token operator">/</span>nginx<span class="token punctuation">:</span><span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span>conf<span class="token punctuation">.</span>d nginx 
 docker run -id --name nginx-dev -p 80:80 -p 443:443 -v /data/docker-config/nginx:/etc/nginx/conf.d nginx