dockfile

最新推荐文章于 2023-01-12 12:37:50 发布

转载最新推荐文章于 2023-01-12 12:37:50 发布 · 563 阅读

本文介绍如何通过Dockerfile构建Nginx镜像并部署容器，包括配置环境变量、映射端口等关键步骤。

首先需要的包和dockerfile放在一起

[root@localhost docker-file]# ls

Dockerfile nginx-1.9.3.tar.gz pcre-8.37.tar.gz

[root@localhost docker-file]# pwd

/opt/docker-file

[root@localhost docker-file]#

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创建dockerfile

[root@localhost docker-file]# vim Dockerfile

#base images,name or id 可以是镜像名字或者镜像ID

FROM 3bee3060bfc8

#maintainer 作者

MAINTAINER wangzz

#add 把包添加到容器的指定目录，如果是tar包会自动解压

ADD pcre-8.37.tar.gz /usr/local/src

ADD nginx-1.9.3.tar.gz /usr/local/src

#run 在容器里运行命令安装nginx需要软件

RUN yum install -y wget gcc gcc-c++ make openssl-devel

#run 在容器里运行命令创建用户

RUN useradd -s /sbin/nologin -M www

#workdir 相当于cd到这个目录

WORKDIR /usr/local/src/nginx-1.9.3

#run 在容器里运行命令进行编译安装

RUN ./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_ssl_module --with-http_stub_status_module --with-pcre=/usr/local/src/pcre-8.37 && make && make install

#run 在容器里运行命令更改nginx配置文件，使其前台运行

RUN echo "daemon off;" >> /usr/local/nginx/conf/nginx.conf

#env 将nginx启动命令加到环境变量里

ENV PATH /usr/local/nginx/sbin:$PATH

#映射80端口

EXPOSE 80

执行nginx命令

CMD ["nginx"]

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执行dockerfile

[root@localhost docker-file]# docker build -t my-nginx-1:v1 /opt/docker-file/

当成功后会出现这个，说明执行成功

Successfully built 21273b8e163a

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查看镜像

[root@localhost docker-file]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

my-nginx-1 v1 21273b8e163a 14 minutes ago 429.1 MB

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使用创建好的镜像启动容器

[root@localhost docker-file]# docker run -dit --name mynginx 21273b8e163a

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查看运行的容器

[root@localhost docker-file]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

aa30accbfc06 21273b8e163a "nginx" 3 seconds ago Up 2 seconds 80/tcp mynginx

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访问这个容器的80端口，看nginx是否安装启动成功

[root@localhost docker-file]# curl 172.17.0.3

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

<style>

body {

width: 35em;

margin: 0 auto;

font-family: Tahoma, Verdana, Arial, sans-serif;

}

</style>

</head>

<body>

<h1>Welcome to nginx!</h1>

<p>If you see this page, the nginx web server is successfully installed and

working. Further configuration is required.</p>

<p>For online documentation and support please refer to

<a href="http://nginx.org/">nginx.org</a>.<br/>

Commercial support is available at

<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>

</body>

</html>