Monthly Archives: February 2018

解决mac下brew link python3出错brew Error: Permission denied @ dir_s_mkdir – /usr/local/Frameworks

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mac上默认的python版本为2.7.10版本，需要升级到python3 版本，通过brew升级

$brew install python3

提示错误

$ brew install python3 Warning: python3 3.6.3 is already installed, it‘s just not linked. You can use `brew link python3` to link this version. $ brew link python3 Linking /usr/local/Cellar/python3/3.6.3… Error: Permission denied @ dir_s_mkdir

发现/usr/local/下没有路径/usr/local/Frameworks
需要新建该路径，并修改权限

解决：

$ sudo mkdir /usr/local/Frameworks
$ sudo chown $(whoami):admin /usr/local/Frameworks

成功：

$ brew link python3
Linking /usr/local/Cellar/python3/3.6.3... 1 symlinks created

参考：
https://github.com/Homebrew/homebrew-core/issues/19286

Docker Machine 简介

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一句话概括的话就是 Docker Machine是一个可以方便对多个宿主服务器中的多个容器进行管理的工具。

Docker 与 Docker Machine 的区别 https://www.cnblogs.com/sparkdev/p/7066789.html

Docker Machine 工具出现的意义 https://www.2cto.com/net/201707/660864.html

Docker Machine 用法 http://www.linuxidc.com/Linux/2017-06/145232.htm

Docker Machine 命令 http://blog.csdn.net/warren_1992/article/details/51451522

Mac平台上Docker安装与使用 http://blog.csdn.net/warren_1992/article/details/51451522

windows平台在dos下执行docker pull 命令出错

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这里docker Machine 是安装和管理 Docker 的工具(用来代替Boot2Docker，对于个人玩的话，不建议使用docker Machine，毕竟多了一个虚拟层，不如直接使用当前物理机器作为容器的宿主机）

$ docker pull gitlab/gitlab-ce:latest

Warning: failed to get default registry endpoint from daemon (error during connect: Get http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.33/info: open //./pipe/docker_engine: The system cannot find the file specified. In the default daemon configuration on Windows, the docker client must be run elevated to connect. This error may also indicate that the docker daemon is not running.). Using system default: https://index.docker.io/v1/
error during connect: Post http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.33/images/create?fromImage=gitlab%2Fgitlab-ce&tag=latest: open //./pipe/docker_engine: The system cannot find the file specified. In the default daemon configuration on Windows, the docker client must be run elevated to connect. This error may also indicate that the docker daemon is not running.

解决方法:打开新窗口后执行(

docker-machine env

根据提示运行命令

@FOR /f "tokens=*" %i IN ('docker-machine env default') DO @%i

default 是docker-machine的name，可以通过docker-machine -ls 查看。

如果还提示这个错误，说明没有启用 default ，执行下面的命令

D:\docker
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
default - virtualbox Stopped Unknown

如果为stopped状态，则需要启用一下

$ docker-machine start default
Starting "default"...
(default) Check network to re-create if needed...
(default) Windows might ask for the permission to configure a dhcp server. Sometimes, such confirmation window is minimized in the taskbar.
(default) Waiting for an IP...
Machine "default" was started.
Waiting for SSH to be available...
Detecting the provisioner...
Started machines may have new IP addresses. You may need to re-run the `docker-machine env` command.

最后再执行

$ docker pull hub-mirror.c.163.com/gitlab/gitlab-ce:latest
latest: Pulling from gitlab/gitlab-ce
1be7f2b886e8: Pull complete
6fbc4a21b806: Pull complete
c71a6f8e1378: Pull complete
4be3072e5a37: Pull complete
06c6d2f59700: Pull complete
3e236075b07f: Pull complete
9d3aa9a75297: Pull complete
1fad4f75154b: Pull complete
5383bef86102: Pull complete
7343d4ab63b3: Pull complete
7f250f1b8a34: Downloading [==================> ] 157.4MB/415.4MB