我刚刚在他们的网页上安装了Docker-Toolbox
我从Docker快速入门终端开始，如下所示
## .
## ## ## ==
## ## ## ## ## ===
/"""""""""""""""""\___/ ===
~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ / ===- ~~~
\______ o __/
\ \ __/
\____\_______/
docker is configured to use the default machine with IP 192.168.99.100
For help getting started, check out the docs at https://docs.docker.com
bash-3.2$
但当我尝试执行docker拉hello-world时，这是我看到的
bash-3.2$ docker run hello-world
Unable to find image 'hello-world:latest' locally
Pulling repository docker.io/library/hello-world
Network timed out while trying to connect to https://index.docker.io/v1/repositories/library/hello-world/images. You may want to check your internet connection or if you are behind a proxy.
bash-3.2$
怎么了?
在我的情况下，安装docker在Alpine Linux我得到的错误:
试图连接到https://index.docker.io/v1/repositories/library/........时，网络超时
使用脚本:
https://github.com/docker/docker/blob/master/contrib/download-frozen-image-v2.sh
的工作原理。它使用curl下载图像，然后告诉你如何解tar和“docker加载”它。
我在8.8.8.8尝试了上面的静态DNS方法和禁用ipv6(我不理解代理的事情)，没有一个对我有用。
编辑9/8/2016:
我最初使用dropbear而不是openssh。用openssh重新安装Alpine修复了这个问题。
下一个问题是“ApplyLayer退出状态1 stdout: stderr: chmod /bin/mount: permission denied”错误。
从(nixaid.com/grsec-in-docker/):
为了构建Docker映像，我必须禁用以下grsec
保护。修改“/etc/sysctl.d/grsec.conf”文件如下:
kernel.grsecurity。Chroot_deny_chmod = 0
kernel.grsecurity。Chroot_deny_mknod = 0
kernel.grsecurity。chroot_caps = 0 #与systemd包/CAP_SETFCAP相关
但在alpine的案例中
/ etc / sysctl。d / 00-alpine上。
重新启动
我猜您有网络问题。你背后有代理人吗?它是否有可能过滤到docker的连接。IO或阻塞docker用户代理?
我安装了工具箱，运行了你的测试。它工作得很好，在这里:
docker is configured to use the default machine with IP 192.168.99.101
For help getting started, check out the docs at https://docs.docker.com
bash-3.2$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
535020c3e8ad: Pull complete
af340544ed62: Already exists
library/hello-world:latest: The image you are pulling has been verified. Important: image verification is a tech preview feature and should not be relied on to provide security.
Digest: sha256:d5fbd996e6562438f7ea5389d7da867fe58e04d581810e230df4cc073271ea52
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 Hub account:
https://hub.docker.com
For more examples and ideas, visit:
https://docs.docker.com/userguide/
bash-3.2$
2016年8月更新
使用Docker for Mac(版本1.12.0)时，看到了表单的问题:
➜ docker pull node
Using default tag: latest
Pulling repository docker.io/library/node
Network timed out while trying to connect to https://index.docker.io/v1/repositories/library/node/images. You may want to check your internet connection or if you are behind a proxy.`enter code here`
这个问题通过更新我的MacBook Pro无线网络设置来解决，以包括以下DNS条目:8.8.8.8
欲了解更多信息，请参阅这一期(日期)，它提供了这里给出的答案。
我昨天遇到了这个完全相同的问题，没有一个“流行”的答案(比如将DNS修复到8.8.8.8)对我有效。我最终偶然发现了这个链接，这就成功了……https://github.com/docker/for-win/issues/16
在Docker for Windows, Windows 10和Hyper-V之间，在虚拟网络适配器创建过程中似乎有一个问题。具体来说，您可能最终会得到两个“vEthernet (DockerNAT)”网络适配器。使用Get-NetAdapter“vEthernet (DockerNAT)”检查(在一个升高的PowerShell控制台)。如果结果显示了多个适配器，您可以禁用并重命名它:
$vmNetAdapter = Get-VMNetworkAdapter -ManagementOS -SwitchName DockerNAT
Get-NetAdapter "vEthernet (DockerNAT)" | ? { $_.DeviceID -ne $vmNetAdapter.DeviceID } | Disable-NetAdapter -Confirm:$False -PassThru | Rename-NetAdapter -NewName "OLD"
然后打开Device Manager并删除禁用的适配器(出于某种原因，可以从这里执行，但不能从Network and Sharing Center适配器视图执行)。
