- container 就像是单片机烧写的程序。操作系统也带上了。
- so 一个微服务架构，有成百上千的容器，他们 hosting a small part of a larger application. container orchestration tools:Kubernetes来管理这些容器
- 容器与虚拟机的区别
| 名字 | container | vm |
|---|
| os | - Containers use the host OS, meaning all containers must be compatible with that OS. | VMs are effectively separate computers that run their own OS. |
| 所使用的资源 | - Containers are lightweight, taking only the resources needed to run the application and the container manager. | - VMs emulate a full computer, meaning that they replicate much of the host environment. That uses more memory, CPU cycles, and disk space. |
| 镜像文件 | - Container images are relatively small in size, making them easy to share. | - VM images are often much larger as they include a full OS. |
| 隔离的程度与其他同伴 | - Containers might be isolated only very lightly from each other. A process in one container could access memory used by another container, for example. | - By running a separate OS, VMs running on the same hardware are more isolated from one another than containers. |
| 集成工具 | - Tools such as Kubernetes make it relatively easy to run multiple containers together, specifying how and when containers interact. | - Configuration management tools, such as Terraform or Ansible, automate VM deployment and integration. |
| 生命 | - Containers are ephemeral, meaning they stay alive only for as long as the larger system needs them. Storage is usually handled outside the container. | - VMs tend to have longer lives and include a full file system of their own. |