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https://github.com/impact-eintr/docker-ece
支持cgroup2和overlay2的docker引擎,《自己动手写docker》的学习笔记 ,球球大佬们给个star
https://github.com/impact-eintr/docker-ece
docker docker-compose docker-image
Last synced: about 2 hours ago
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支持cgroup2和overlay2的docker引擎,《自己动手写docker》的学习笔记 ,球球大佬们给个star
- Host: GitHub
- URL: https://github.com/impact-eintr/docker-ece
- Owner: impact-eintr
- Created: 2021-02-05T13:50:20.000Z (almost 4 years ago)
- Default Branch: main
- Last Pushed: 2023-08-21T10:46:27.000Z (about 1 year ago)
- Last Synced: 2024-11-15T04:39:19.265Z (4 days ago)
- Topics: docker, docker-compose, docker-image
- Language: Go
- Homepage:
- Size: 12.4 MB
- Stars: 30
- Watchers: 2
- Forks: 1
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Docker-ECE
支持cgroup2和overlay2的容器运行时
### 安装
``` bash
gh repo clone impact-eintr/Docker-ECE
cd Docker-ECE
go build
sudo ./Docker-ECE
```
### 简单使用
``` bash
sudo ./Docker-ECE run -it /bin/sh
INFO[0000] Docker-ECE is a simple container runtime implementation
/bin/sh
INFO[0000] Docker-ECE is a simple container runtime implementation
{"level":"info","msg":"init come on","time":"2021-11-23T11:18:12+08:00"}
{"level":"info","msg":"command ","time":"2021-11-23T11:18:12+08:00"}
{"level":"info","msg":"read parent pipe cmd","time":"2021-11-23T11:18:12+08:00"}
{"level":"info","msg":"command all is /bin/sh","time":"2021-11-23T11:18:12+08:00"}
{"level":"info","msg":"receive /bin/sh","time":"2021-11-23T11:18:12+08:00"}
{"level":"info","msg":"Current location is [/var/lib/docker-ece/HEZDENJXG43TQMBT/merge]","time":"2021-11-23T11:18:12+08:00"}
{"level":"info","msg":"now change dir to root","time":"2021-11-23T11:18:12+08:00"}
/ # export PATH=/bin
/ # ls
bin dev etc home proc root sys tmp usr var
```
### 使用已有的镜像
这里就先使用docker导出的镜像了
``` bash
docker run -it ubuntu /bin/bash
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
de8196e01926 ubuntu "/bin/bash" 2 weeks ago Exited (0) 2 weeks ago beautiful_hoover
docker export -o myubuntu.tar de8196e01926
# 将镜像放到指定位置 Docker-ECE/Images 否则找不到
mv myubuntu.tar Docker-ECE/Images
```
注意名字要对上 不需要加`.tar` 直接名字就行
``` bash
sudo ./Docker-ECE run -it --image myubuntu /bin/bash
## 以下是正确进入一个ubuntu容器的样子
INFO[0000] Docker-ECE is a simple container runtime implementation
/bin/bash
INFO[0000] Docker-ECE is a simple container runtime implementation
{"level":"info","msg":"init come on","time":"2021-11-23T10:49:57+08:00"}
{"level":"info","msg":"command ","time":"2021-11-23T10:49:57+08:00"}
{"level":"info","msg":"read parent pipe cmd","time":"2021-11-23T10:49:57+08:00"}
cgroup2
{"level":"info","msg":"command all is /bin/bash","time":"2021-11-23T10:49:57+08:00"}
{"level":"info","msg":"receive /bin/bash","time":"2021-11-23T10:49:57+08:00"}
{"level":"info","msg":"Current location is [/var/lib/docker-ece/GMZTEOJVGIZDCMBZ/merge]","time":"2021-11-23T10:49:57+08:00"}
{"level":"info","msg":"now change dir to root","time":"2021-11-23T10:49:57+08:00"}
root@Code01:/# ls
bin dev home lib32 libx32 mnt proc run srv tmp var
boot etc lib lib64 media opt root sbin sys usr
root@Code01:/# ps
PID TTY TIME CMD
1 ? 00:00:00 bash
11 ? 00:00:00 ps
```
### 容器联网
先看一下本地的DNS
``` bash
cat /etc/resolv.conf
```
``` bash
> sudo ./Docker-ECE run -it --net test /bin/sh
[sudo] eintr 的密码：
INFO[0000] Docker-ECE is a simple container runtime implementation
/bin/sh
INFO[0000] Docker-ECE is a simple container runtime implementation
{"level":"info","msg":"init come on","time":"2021-11-23T11:38:04+08:00"}
{"level":"info","msg":"command ","time":"2021-11-23T11:38:04+08:00"}
{"level":"info","msg":"read parent pipe cmd","time":"2021-11-23T11:38:04+08:00"}
{"level":"info","msg":"command all is /bin/sh","time":"2021-11-23T11:38:04+08:00"}
{"level":"info","msg":"receive /bin/sh","time":"2021-11-23T11:38:04+08:00"}
{"level":"info","msg":"Current location is [/var/lib/docker-ece/GIYTQNZVGU2TMMZV/merge]","time":"2021-11-23T11:38:04+08:00"}
{"level":"info","msg":"now change dir to root","time":"2021-11-23T11:38:04+08:00"}
/ # export PATH=/bin
/ # echo "nameserver 61.139.2.69" > /etc/resolv.conf // 把查出来的DNS添进去
/ # ping www.baidu.com
PING www.baidu.com (14.215.177.38): 56 data bytes
64 bytes from 14.215.177.38: seq=0 ttl=53 time=36.101 ms
64 bytes from 14.215.177.38: seq=1 ttl=53 time=34.067 ms
64 bytes from 14.215.177.38: seq=2 ttl=53 time=34.307 ms
64 bytes from 14.215.177.38: seq=3 ttl=53 time=33.259 ms
^C
--- www.baidu.com ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 33.259/34.433/36.101 ms
/ #
```
# 《自己动手写docker》的学习笔记
## 基础知识
## 容器网络