原文:
Docker revolutionized software deployment by introducing lightweight containers. Unlike virtual machines, containers share the host's kernel but provide isolated user spaces. A Dockerfile defines the build process, specifying a base image, dependencies, and commands. The resulting image is immutable and portable across environments. Containers are ephemeral by design — data persists only in mounted volumes. This approach ensures consistency between development, testing, and production, eliminating the "it works on my machine" problem.
翻译:
Docker通过引入轻量级容器彻底改变了软件部署。与虚拟机不同,容器共享主机的内核,但提供隔离的用户空间。Dockerfile定义构建过程,指定基础镜像、依赖项和命令。生成的镜像是不可变的、可跨环境移植的。容器设计上是短暂的——数据仅持久化在挂载的卷中。这种方法确保开发、测试和生产之间的一致性,消除了"在我机器上能跑"的问题。
词汇注释:
