关于macos：酿酒安装docker不包括docker引擎？

Brew install docker does not include docker engine?

尝试从brew设置docker，但是任何正式公式中似乎都未包含该引擎。

1	brew install docker-machine docker-compose

因此，这些仅安装客户端吗？
引擎/守护程序是否没有小桶？

以下步骤可在macOS Sierra 10.12.4上正常运行。请注意，brew安装Docker之后，docker命令(符号链接)在/usr/local/bin处不可用。首次运行Docker应用程序会创建此符号链接。请参阅下面的详细步骤。

安装Docker

1	brew cask install docker

启动Docker。

按？ + Space调出Spotlight Search，然后输入docker启动Docker。
在" Docker需要特权访问"对话框中，单击"确定"。
输入密码，然后单击

当以这种方式启动Docker时，状态菜单中会出现一个Docker whale图标。一旦出现鲸鱼图标，就会在/usr/local/bin中创建docker，docker-compose，docker-credential-osxkeychain和docker-machine的符号链接。

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$ ls -l /usr/local/bin/docker*
lrwxr-xr-x 1 susam domain Users 67 Apr 12 14:14 /usr/local/bin/docker -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker
lrwxr-xr-x 1 susam domain Users 75 Apr 12 14:14 /usr/local/bin/docker-compose -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker-compose
lrwxr-xr-x 1 susam domain Users 90 Apr 12 14:14 /usr/local/bin/docker-credential-osxkeychain -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker-credential-osxkeychain
lrwxr-xr-x 1 susam domain Users 75 Apr 12 14:14 /usr/local/bin/docker-machine -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker-machine

单击状态菜单中的docker whale图标，等待它显示Docker正在运行。

enter image description here

测试docker工作正常。

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$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
78445dd45222: Pull complete
Digest: sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the"hello-world" image from the Docker Hub.
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://cloud.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/

$ docker version
Client:
Version: 17.03.1-ce
API version: 1.27
Go version: go1.7.5
Git commit: c6d412e
Built: Tue Mar 28 00:40:02 2017
OS/Arch: darwin/amd64

Server:
Version: 17.03.1-ce
API version: 1.27 (minimum version 1.12)
Go version: go1.7.5
Git commit: c6d412e
Built: Fri Mar 24 00:00:50 2017
OS/Arch: linux/amd64
Experimental: true

如果要使用docker-machine创建虚拟机，请安装VirtualBox。

1	brew cask install virtualbox

请注意，如果未安装VirtualBox，则docker-machine
失败，并出现以下错误。

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$ docker-machine create manager
Running pre-create checks...
Error with pre-create check:"VBoxManage not found. Make sure VirtualBox is installed and VBoxManage is in the path"