Docker容器技术和传统虚拟机技术的特性比较

原創 Dockerhadoop 2019-07-05 14:13

Docker是用GO语言编写，诞生于2013年年初，遵循Apache2.0协议，全部开源代码在https://github.com/docker/docker上进行维护。


在开发和运维中，为什么要使用docker：

  1. 更快速的交付和部署

  2. 更高效的资源利用

  3. 更轻松的迁移和部署

  4. 更简单的更新管理

下表是Docker容器技术和传统虚拟机技术的特性比较比较

特性容器虚拟机
启动速度妙级分钟级
性能接近原生较弱
内存代价很小较多
硬盘使用一般为MB一般为GB
运行密度单机支持上千个容器一般几十个
隔离性安全隔离安全隔离
迁移性优秀一般




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