Docker是在WSL中运行还是连接回Windows？

Question

在WSL中成功安装Docker之后，如果我运行标准Docker命令，则会出现连接错误。在所有示例中，使用sudo或不使用sudo运行都会产生相同的结果。

root@SUR002731165154:~# sudo docker info
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

root@SUR002731165154:~# sudo docker version
Client:
Version:      1.13.1
API version:  1.26
Go version:   go1.7.5
Git commit:   092cba3
Built:        Wed Feb  8 06:42:29 2017
OS/Arch:      linux/amd64
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

但是，如果我在命令中添加-H localhost：2375，那么我可以运行Docker没问题。Docker是连接到我的本地主机Windows
10计算机还是在WSL上本地运行，还是两者兼而有之？

root@SUR002731165154:~# docker -H localhost:2375 version
Client:
Version:      1.13.1
API version:  1.26
Go version:   go1.7.5
Git commit:   092cba3
Built:        Wed Feb  8 06:42:29 2017
OS/Arch:      linux/amd64

Server:
Version:      1.13.1
API version:  1.26 (minimum version 1.12)
Go version:   go1.7.5
Git commit:   092cba3
Built:        Wed Feb  8 08:47:51 2017
OS/Arch:      linux/amd64
Experimental: true

root@SUR002731165154:~# docker -H localhost:2375 info
Containers: 11
Running: 0
Paused: 0
Stopped: 11
Images: 8
Server Version: 1.13.1
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1
runc version: 9df8b306d01f59d3a8029be411de015b7304dd8f
init version: 949e6fa
Security Options:
seccomp
Profile: default
Kernel Version: 4.9.8-moby
Operating System: Alpine Linux v3.5
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 1.934 GiB
Name: moby
ID: 4LYM:R5T5:6CPZ:Z2KC:YQ4R:NGN4:V6SR:DF7E:YPYO:7FHY:EQW5:2T7W
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
File Descriptors: 13
Goroutines: 21
System Time: 2017-02-28T18:54:13.7726687Z
EventsListeners: 0
Registry: https://index.docker.io/v1/
Experimental: true
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false

Answer 1

Docker守护程序无法实现必要的内核ABI，因此无法在WSL下运行。如果您正在运行Windows的Docker，则可能正在连接到它管理的Hyper-
V虚拟机。

因为它在另一台机器上，所以您将无法将WSL目录作为Docker卷挂载，但是可以从WSL目录构建映像。这是因为在构建中，客户端会创建一个tarball并将其发送到守护程序。