5.1 Docker Platform

  • Docker提供了一个开发,打包,运行APP的平台
  • 把APP和底层infrastructure隔离开来

5、Docker架构和底层技术-LMLPHP

5.2 Docker Engine

  • 后台进程(dockerd)
  • REST API Server
  • CLI接口(docker)

5、Docker架构和底层技术-LMLPHP

[root@docker ~]# docker version

Client:
Version: 18.03.1-ce
API version: 1.37
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:20:16 2018
OS/Arch: linux/amd64
Experimental: false
Orchestrator: swarm Server:
Engine:
Version: 18.03.1-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:23:58 2018
OS/Arch: linux/amd64
Experimental: false
[root@docker ~]#
[root@docker ~]# ps -ef|grep docker|grep -v grep
root 17126 1 0 5月30 ? 00:01:52 /usr/bin/dockerd
root 17130 17126 0 5月30 ? 00:02:14 docker-containerd --config /var/run/docker/containerd/containerd.toml
[root@docker ~]#

5.3 Docker Architecture

5、Docker架构和底层技术-LMLPHP

5.4 Docker底层技术支持

  • Namespaces:做隔离pid,net,ipc,mnt,uts
  • Control groups:做资源限制
  • Union file systems:Container和image的分层
05-12 14:30