安装docker的操作前面文章有提及，这里就不再赘述。
docker安装：https://blog.csdn.net/longyq/article/details/116671392

腾讯云服务器：
目前正在活动期间，38元一年很划算，有需要的朋友可以去买：
[腾讯云] : https://curl.qcloud.com/R54vzsHX
以上这两个网址可以直达活动页面。

我们从安装nginx开始：

安装nginx：

1、拉取nginx


```powershell docker pull nginx ``` 
```powershell docker pull nginx ``` 
```powershell docker pull nginx ```

2、运行nginx


-<span class="token operator">-</span>没有挂载文件 docker run <span class="token operator">--</span>name=nginxCoontain<span class="token operator">-</span>1 <span class="token operator">-</span>d <span class="token operator">-</span>p 8889:80 nginx <span class="token operator">--</span>挂载文件到指定文件。注：如果使用挂载，必须先创建对应文件夹。 docker run <span class="token operator">--</span>name nginx <span class="token operator">-</span>d <span class="token operator">-</span>p 9000:80 <span class="token operator">--</span>restart=always <span class="token operator">--</span>privileged=true <span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span><span class="token keyword">data</span><span class="token operator">/</span>nginx<span class="token operator">/</span>conf<span class="token operator">/</span>nginx<span class="token punctuation">.</span>conf:<span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span>nginx<span class="token punctuation">.</span>conf <span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span><span class="token keyword">data</span><span class="token operator">/</span>nginx<span class="token operator">/</span>html:<span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span>html <span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span><span class="token keyword">data</span><span class="token operator">/</span>nginx<span class="token operator">/</span>log:<span class="token operator">/</span><span class="token keyword">var</span><span class="token operator">/</span>log<span class="token operator">/</span>nginx nginx 
-<span class="token operator">-</span>没有挂载文件 docker run <span class="token operator">--</span>name=nginxCoontain<span class="token operator">-</span>1 <span class="token operator">-</span>d <span class="token operator">-</span>p 8889:80 nginx <span class="token operator">--</span>挂载文件到指定文件。注：如果使用挂载，必须先创建对应文件夹。 docker run <span class="token operator">--</span>name nginx <span class="token operator">-</span>d <span class="token operator">-</span>p 9000:80 <span class="token operator">--</span>restart=always <span class="token operator">--</span>privileged=true <span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span><span class="token keyword">data</span><span class="token operator">/</span>nginx<span class="token operator">/</span>conf<span class="token operator">/</span>nginx<span class="token punctuation">.</span>conf:<span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span>nginx<span class="token punctuation">.</span>conf <span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span><span class="token keyword">data</span><span class="token operator">/</span>nginx<span class="token operator">/</span>html:<span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span>html <span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span><span class="token keyword">data</span><span class="token operator">/</span>nginx<span class="token operator">/</span>log:<span class="token operator">/</span><span class="token keyword">var</span><span class="token operator">/</span>log<span class="token operator">/</span>nginx nginx 
--没有挂载文件 docker run --name=nginxCoontain-1 -d -p 8889:80 nginx --挂载文件到指定文件。注：如果使用挂载，必须先创建对应文件夹。 docker run --name nginx -d -p 9000:80 --restart=always --privileged=true -v /root/data/nginx/conf/nginx.conf:/etc/nginx/nginx.conf -v /root/data/nginx/html:/etc/nginx/html -v /root/data/nginx/log:/var/log/nginx nginx

在这里插入图片描述
–name：设置容器的名称。
-d：表示在后台运行容器。
-p：指定端口映射。8889是宿主机的端口，80是Nginx容器内部的端口。
nginx：表示根据nginx镜像运行容器。

这时，我们访问：http://127.0.0.1:8889/
看到如下画面，说明nginx正常运行了。
在这里插入图片描述

Net Core实例运行

如何将一个asp.net core程序打包成镜像，部署docker内，并将同一个镜像运行成三个容器的操作，前面有相关文章不再赘述。https://blog.csdn.net/longyq/article/details/122682292
在这里插入图片描述
分别运行在8090，8091，8092端口上。

注意：
因为nginx在docker内部，所以我们要配置nginx首先就得进入docker：


docker exec <span class="token operator">-</span>it nginxCoontain<span class="token operator">-</span>1 bash 
docker exec <span class="token operator">-</span>it nginxCoontain<span class="token operator">-</span>1 bash 
docker exec -it nginxCoontain-1 bash

这里我们知道nginx的配置文件放在/etc/nginx/中，于是我们进入nginx文件夹：


cd <span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span> 
cd <span class="token operator">/</span>etc<span class="token operator">/</span>nginx<span class="token operator">/</span> 
cd /etc/nginx/

打开nginx文件夹中的nginx.conf文件：


<span class="token function">cat</span> nginx<span class="token punctuation">.</span>conf 
<span class="token function">cat</span> nginx<span class="token punctuation">.</span>conf 
cat nginx.conf

可以看到如下画面，说明具体的配置文件在conf.d文件夹下面的default.conf
在这里插入图片描述

我们进入conf.d文件夹：


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

打开 default.conf 文件：


vim default<span class="token punctuation">.</span>conf 
vim default<span class="token punctuation">.</span>conf 
vim default.conf

在这里插入图片描述
修改成功后保存。

vim如何修改文件，保存文件，请看：https://blog.csdn.net/longyq/article/details/122714827

来测试一下，config文件是否报错；


nginx <span class="token operator">-</span>t 
nginx <span class="token operator">-</span>t 
nginx -t

如果成功，会有OK，或者，success字样。

退出docker，重启nginx：


<span class="token keyword">exit</span> 
<span class="token keyword">exit</span> 
exit


docker restart nginxCoontain<span class="token operator">-</span>1 
docker restart nginxCoontain<span class="token operator">-</span>1 
docker restart nginxCoontain-1