Docker engine

最新推荐文章于 2025-05-15 14:52:33 发布

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本文详细介绍了Docker容器技术的基本概念、结构及常用命令。Docker提供了一种方式来安全地运行应用程序，这些应用程序被封装在容器中并带有所有依赖项和库。与虚拟机不同，容器不需要捆绑整个操作系统，只需包含使软件正常工作的所需库和设置。

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Docker(Docker Engine)
• Define

1. Docker provides a way to run applications securely isolated in a container, packaged with all its dependencies and libraries.
2. Containers are a way to package software in a format that can run isolated on a shared operating system. Unlike VMs, containers do not bundle a full operating system - only libraries and settings required to make the software work are needed

• Structure
这里写图片描述
the client-server application made up of the Docker daemon, a REST API that specifies interfaces for interacting with the daemon,and a command line interface (CLI) client that talks to the daemon (through the REST API wrapper).

• CLI
○ https://docs.docker.com/engine/reference/run/
○ Sample

    § docker --help
    § docker build -t songgs/apache-php-mysql:20m .
    § docker run -d -p 8080:80 -u 0:0 --name wplocal -v /var/LWASFiles/Sites/new2/home:/home -e PORT="80"    appsvc/apps:wordpress
    § docker exec -it containerid bash
    § docker push songgs/apache-php-mysql:20m
    § docker rmi –f $(docker images -q -f dangling=true) 
    § docker rm -f $(docker ps -aq -f status=exited)

• Learn : 中文版

Docker Image

Apache-PHP-MySQL
PHP installed as apache module: http://php.net/manual/en/security.apache.php
Nginx-PHP
Python
nginx <-> /tmp/uwsgi.sock <-> uWSGI <-> Python app <-> Psycopg2 <-> remote PostgreSQL database