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Rancher：一个全面的可用于产品环境的容器管理平台
|
||||
======
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||||
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||||
Docker 作为一款容器化应用的新兴软件，被大多数 IT 公司使用来减少基础设施平台的成本。
|
||||
|
||||
通常，没有 GUI 的 Docker 软件对于 Linux 管理员来说很容易，但是对于开发者来就有点困难。当把它搬到生产环境上来，那么它对 Linux 管理员来说也相当不友好。那么，轻松管理 Docker 的最佳解决方案是什么呢？
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唯一的办法就是提供 GUI。Docker API 允许第三方应用接入 Docker。在市场上有许多 Docker GUI 应用。我们已经写过一篇关于 Portainer 应用的文章。今天我们来讨论另一个应用，Rancher。
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容器让软件开发更容易，让开发者更快的写代码、更好的运行它们。但是，在生产环境上运行容器却很困难。
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**推荐阅读：** [Portainer：一个简单的 Docker 管理图形工具][1]
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||||
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||||
### Rancher 简介
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||||
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||||
[Rancher][2] 是一个全面的容器管理平台，它可以让容器在各种基础设施平台的生产环境上部署和运行更容易。它提供了诸如多主机网络、全局/本地负载均衡和卷快照等基础设施服务。它整合了原生 Docker 的管理能力，如 Docker Machine 和 Docker Swarm。它提供了丰富的用户体验，让 DevOps 管理员在更大规模的生产环境上运行 Docker。
|
||||
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||||
访问以下文章可以了解 Linux 系统上安装 Docker。
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||||
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||||
**推荐阅读：**
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||||
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||||
- [如何在 Linux 上安装 Docker][3]
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||||
- [如何在 Linux 上使用 Docker 镜像][4]
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- [如何在 Linux 上使用 Docker 容器][5]
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- [如何在 Docker 容器内安装和运行应用][6]
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### Rancher 特性
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||||
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||||
* 可以在两分钟内安装 Kubernetes。
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* 一键启动应用（90 个流行的 Docker 应用）。
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* 部署和管理 Docker 更容易。
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* 全面的生产级容器管理平台。
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* 可以在生产环境上快速部署容器。
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* 强大的自动部署和运营容器技术。
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* 模块化基础设施服务。
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* 丰富的编排工具。
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* Rancher 支持多种认证机制。
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### 怎样安装 Rancher
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||||
由于 Rancher 是以轻量级的 Docker 容器方式运行，所以它的安装非常简单。Rancher 是由一组 Docker 容器部署的。只需要简单的启动两个容器就能运行 Rancher。一个容器用作管理服务器，另一个容器在各个节点上作为代理。在 Linux 系统下简单的运行下列命令就能部署 Rancher。
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Rancher 服务器提供了两个不同的安装包标签如 `stable` 和 `latest`。下列命令将会拉取适合的 Rancher 镜像并安装到你的操作系统上。Rancher 服务器仅需要两分钟就可以启动。
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* `latest`：这个标签是他们的最新开发构建。这些构建将通过 Rancher CI 的自动化框架进行验证，不建议在生产环境使用。
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* `stable`：这是最新的稳定发行版本，推荐在生产环境使用。
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Rancher 的安装方法有多种。在这篇教程中我们仅讨论两种方法。
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* 以单一容器的方式安装 Rancher（内嵌 Rancher 数据库）
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* 以单一容器的方式安装 Rancher（外部数据库）
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### 方法 - 1
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运行下列命令以单一容器的方式安装 Rancher 服务器（内嵌数据库）
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```
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$ sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server:stable
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$ sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server:latest
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```
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### 方法 - 2
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你可以在启动 Rancher 服务器时指向外部数据库，而不是使用自带的内部数据库。首先创建所需的数据库，数据库用户为同一个。
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```
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> CREATE DATABASE IF NOT EXISTS cattle COLLATE = 'utf8_general_ci' CHARACTER SET = 'utf8';
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> GRANT ALL ON cattle.* TO 'cattle'@'%' IDENTIFIED BY 'cattle';
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> GRANT ALL ON cattle.* TO 'cattle'@'localhost' IDENTIFIED BY 'cattle';
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```
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运行下列命令启动 Rancher 去连接外部数据库。
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```
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$ sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server \
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--db-host myhost.example.com --db-port 3306 --db-user username --db-pass password --db-name cattle
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```
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如果你想测试 Rancher 2.0，使用下列的命令去启动。
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```
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$ sudo docker run -d --restart=unless-stopped -p 80:80 -p 443:443 rancher/server:preview
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```
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### 通过 GUI 访问 & 安装 Rancher
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浏览器输入 `http://hostname:8080` 或 `http://server_ip:8080` 去访问 rancher GUI.
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![][8]
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### 怎样注册主机
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注册你的主机 URL 允许它连接到 Rancher API。这是一次性设置。
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接下来，点击主菜单下面的 “Add a Host” 链接或者点击主菜单上的 “INFRASTRUCTURE >> Add Hosts”，点击 “Save” 按钮。
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![][9]
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默认情况下，Rancher 里的访问控制认证禁止了访问，因此我们首先需要通过一些方法打开访问控制认证，否则任何人都不能访问 GUI。
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点击 “>> Admin >> Access Control”，输入下列的值最后点击 “Enable Authentication” 按钮去打开它。在我这里，是通过 “local authentication” 的方式打开的。
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|
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* “Login UserName”： 输入你期望的登录名
|
||||
* “Full Name”： 输入你的全名
|
||||
* “Password”： 输入你期望的密码
|
||||
* “Confirm Password”： 再一次确认密码
|
||||
|
||||
![][10]
|
||||
|
||||
注销然后使用新的登录凭证重新登录：
|
||||
|
||||
![][11]
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||||
|
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现在，我能看到本地认证已经被打开。
|
||||
|
||||
![][12]
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### 怎样添加主机
|
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|
||||
注册你的主机后，它将带你进入下一个页面，在那里你能选择不同云服务提供商的 Linux 主机。我们将添加一个主机运行 Rancher 服务，因此选择“custom”选项然后输入必要的信息。
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||||
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||||
在第 4 步输入你服务器的公有 IP，运行第 5 步列出的命令，最后点击 “close” 按钮。
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|
||||
```
|
||||
$ sudo docker run -e CATTLE_AGENT_IP="192.168.56.2" --rm --privileged -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/rancher:/var/lib/rancher rancher/agent:v1.2.11 http://192.168.56.2:8080/v1/scripts/16A52B9BE2BAB87BB0F5:1546214400000:ODACe3sfis5V6U8E3JASL8jQ
|
||||
|
||||
INFO: Running Agent Registration Process, CATTLE_URL=http://192.168.56.2:8080/v1
|
||||
INFO: Attempting to connect to: http://192.168.56.2:8080/v1
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||||
INFO: http://192.168.56.2:8080/v1 is accessible
|
||||
INFO: Configured Host Registration URL info: CATTLE_URL=http://192.168.56.2:8080/v1 ENV_URL=http://192.168.56.2:8080/v1
|
||||
INFO: Inspecting host capabilities
|
||||
INFO: Boot2Docker: false
|
||||
INFO: Host writable: true
|
||||
INFO: Token: xxxxxxxx
|
||||
INFO: Running registration
|
||||
INFO: Printing Environment
|
||||
INFO: ENV: CATTLE_ACCESS_KEY=9946BD1DCBCFEF3439F8
|
||||
INFO: ENV: CATTLE_AGENT_IP=192.168.56.2
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INFO: ENV: CATTLE_HOME=/var/lib/cattle
|
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INFO: ENV: CATTLE_REGISTRATION_ACCESS_KEY=registrationToken
|
||||
INFO: ENV: CATTLE_REGISTRATION_SECRET_KEY=xxxxxxx
|
||||
INFO: ENV: CATTLE_SECRET_KEY=xxxxxxx
|
||||
INFO: ENV: CATTLE_URL=http://192.168.56.2:8080/v1
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||||
INFO: ENV: DETECTED_CATTLE_AGENT_IP=172.17.0.1
|
||||
INFO: ENV: RANCHER_AGENT_IMAGE=rancher/agent:v1.2.11
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||||
INFO: Launched Rancher Agent: e83b22afd0c023dabc62404f3e74abb1fa99b9a178b05b1728186c9bfca71e8d
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||||
```
|
||||
|
||||
![][13]
|
||||
|
||||
等待几秒钟后新添加的主机将会出现。点击 “Infrastructure >> Hosts” 页面。
|
||||
|
||||
![][14]
|
||||
|
||||
### 怎样查看容器
|
||||
|
||||
只需要点击下列位置就能列出所有容器。点击 “Infrastructure >> Containers” 页面。
|
||||
|
||||
![][15]
|
||||
|
||||
### 怎样创建容器
|
||||
|
||||
非常简单，只需点击下列位置就能创建容器。
|
||||
|
||||
点击 “Infrastructure >> Containers >> Add Container” 然后输入每个你需要的信息。为了测试，我将创建一个 `latest` 标签的 CentOS 容器。
|
||||
|
||||
![][16]
|
||||
|
||||
在同样的列表位置，点击 “ Infrastructure >> Containers”。
|
||||
|
||||
![][17]
|
||||
|
||||
点击容器名展示容器的性能信息，如 CPU、内存、网络和存储。
|
||||
|
||||
![][18]
|
||||
|
||||
选择特定容器，然后点击最右边的“三点”按钮或者点击“Actions”按钮对容器进行管理，如停止、启动、克隆、重启等。
|
||||
|
||||
![][19]
|
||||
|
||||
如果你想控制台访问容器，只需要点击 “Actions” 按钮中的 “Execute Shell” 选项即可。
|
||||
|
||||
![][20]
|
||||
|
||||
### 怎样从应用目录部署容器
|
||||
|
||||
Rancher 提供了一个应用模版目录，让部署变的很容易，只需要单击一下就可以。
|
||||
它维护了多数流行应用，这些应用由 Rancher 社区贡献。
|
||||
|
||||
![][21]
|
||||
|
||||
点击 “Catalog >> All >> Choose the required application”，最后点击 “Launch” 去部署。
|
||||
|
||||
![][22]
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.2daygeek.com/rancher-a-complete-container-management-platform-for-production-environment/
|
||||
|
||||
作者：[Magesh Maruthamuthu][a]
|
||||
译者：[arrowfeng](https://github.com/arrowfeng)
|
||||
校对：[wxy](https://github.com/wxy)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:https://www.2daygeek.com/author/magesh/
|
||||
[1]:https://www.2daygeek.com/portainer-a-simple-docker-management-gui/
|
||||
[2]:http://rancher.com/
|
||||
[3]:https://www.2daygeek.com/install-docker-on-centos-rhel-fedora-ubuntu-debian-oracle-archi-scentific-linux-mint-opensuse/
|
||||
[4]:https://www.2daygeek.com/list-search-pull-download-remove-docker-images-on-linux/
|
||||
[5]:https://www.2daygeek.com/create-run-list-start-stop-attach-delete-interactive-daemonized-docker-containers-on-linux/
|
||||
[6]:https://www.2daygeek.com/install-run-applications-inside-docker-containers/
|
||||
[7]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
|
||||
[8]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-1.png
|
||||
[9]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-2.png
|
||||
[10]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-3.png
|
||||
[11]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-3a.png
|
||||
[12]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-4.png
|
||||
[13]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-5.png
|
||||
[14]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-6.png
|
||||
[15]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-7.png
|
||||
[16]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-8.png
|
||||
[17]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-9.png
|
||||
[18]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-10.png
|
||||
[19]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-11.png
|
||||
[20]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-12.png
|
||||
[21]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-13.png
|
||||
[22]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-14.png
|
||||
@ -1,8 +1,8 @@
|
||||
[#]: collector: (lujun9972)
|
||||
[#]: translator: (geekpi)
|
||||
[#]: reviewer: ( )
|
||||
[#]: publisher: ( )
|
||||
[#]: url: ( )
|
||||
[#]: reviewer: (wxy)
|
||||
[#]: publisher: (wxy)
|
||||
[#]: url: (https://linux.cn/article-10688-1.html)
|
||||
[#]: subject: (Secure Email Service Tutanota Has a Desktop App Now)
|
||||
[#]: via: (https://itsfoss.com/tutanota-desktop)
|
||||
[#]: author: (John Paul https://itsfoss.com/author/john/)
|
||||
@ -10,32 +10,33 @@
|
||||
加密邮件服务 Tutanota 现在有桌面应用了
|
||||
======
|
||||
|
||||
![][18]
|
||||
|
||||
[Tutanota][1] 最近[宣布][2]发布针对其电子邮件服务的桌面应用。该 Beta 版适用于 Linux、Windows 和 macOS。
|
||||
|
||||
### 什么是 Tutanota？
|
||||
|
||||
网上有大量免费的、带有广告的电子邮件服务。但是，大多数电子邮件服务并不完全安全或在意隐私。在这个后[[斯诺登][3]世界中，[Tutanota][4] 提供了免费、安全的电子邮件服务，它专注于隐私。
|
||||
网上有大量免费的、带有广告的电子邮件服务。但是，大多数电子邮件服务并不完全安全或在意隐私。在这个后[斯诺登][3]世界中，[Tutanota][4] 提供了免费、安全的电子邮件服务，它专注于隐私。
|
||||
|
||||
Tutanota 有许多引人注目的功能，例如：
|
||||
|
||||
* 端到端加密邮箱
|
||||
* 端到端加密地址簿
|
||||
* 用户之间自动端到端加密邮件
|
||||
* 使用共享密码将端到端加密电子邮件发送到任何电子邮件地址
|
||||
* 安全密码重置，使 Tutanota 完全无法访问
|
||||
* 从发送和接收的电子邮件中去除 IP 地址
|
||||
* 运行Tutanota 的代码是[开源][5]的
|
||||
* 双重身份验证
|
||||
* 专注于隐私
|
||||
* 密码加盐，并本地使用 Bcrypt 哈希
|
||||
* 位于德国的安全服务器
|
||||
* 支持PFS、DMARC、DKIM、DNSSEC 和 DANE 的 TLS
|
||||
* 本地执行加密数据的全文搜索
|
||||
|
||||
|
||||
* 端到端加密邮箱
|
||||
* 端到端加密地址簿
|
||||
* 用户之间自动端到端加密邮件
|
||||
* 通过分享密码将端到端加密电子邮件发送到任何电子邮件地址
|
||||
* 安全密码重置，使 Tutanota 完全无法访问
|
||||
* 从发送和接收的电子邮件中去除 IP 地址
|
||||
* 运行 Tutanota 的代码是[开源][5]的
|
||||
* 双因子身份验证
|
||||
* 专注于隐私
|
||||
* 加盐的密码，并本地使用 Bcrypt 哈希
|
||||
* 位于德国的安全服务器
|
||||
* 支持 PFS、DMARC、DKIM、DNSSEC 和 DANE 的 TLS
|
||||
* 本地执行加密数据的全文搜索
|
||||
|
||||
![][6]
|
||||
web 中的 Tutanota
|
||||
|
||||
*web 中的 Tutanota*
|
||||
|
||||
你可以[免费注册一个帐户][7]。你还可以升级帐户获取其他功能，例如自定义域、自定义域登录、域规则、额外的存储和别名。他们还提供企业帐户。
|
||||
|
||||
@ -45,35 +46,33 @@ Tutanota 也可以在移动设备上使用。事实上，它的 [Android 应用
|
||||
|
||||
### Tutanota 的新桌面应用
|
||||
|
||||
Tutanota 在圣诞节前宣布了桌面应用的 [Beta 版][2]。该应用基于 [Electron][10]。
|
||||
Tutanota 在去年圣诞节前宣布了桌面应用的 [Beta 版][2]。该应用基于 [Electron][10]。
|
||||
|
||||
![][11]
|
||||
Tutanota 桌面应用
|
||||
|
||||
*Tutanota 桌面应用*
|
||||
|
||||
他们选择 Electron 的原因：
|
||||
|
||||
* 以最小的成本支持三个主流操作系统。
|
||||
* 快速调整新桌面客户端，使其与添加到网页客户端的新功能一致。
|
||||
* 将开发时间留给桌面功能，例如离线可用、电子邮件导入，将同时在所有三个桌面客户端中提供。
|
||||
|
||||
|
||||
* 以最小的成本支持三个主流操作系统。
|
||||
* 快速调整新桌面客户端，使其与添加到网页客户端的新功能一致。
|
||||
* 将开发时间留给桌面功能，例如离线可用、电子邮件导入，将同时在所有三个桌面客户端中提供。
|
||||
|
||||
由于这是 Beta 版，因此应用中缺少一些功能。Tutanota 的开发团队正在努力添加以下功能：
|
||||
|
||||
* 电子邮件导入和与外部邮箱同步。这将“使 Tutanota 能够从外部邮箱导入电子邮件，并在将数据存储在 Tutanota 服务器上之前在设备本地加密数据。”
|
||||
* 电子邮件的离线可用
|
||||
* 双重身份验证
|
||||
|
||||
|
||||
* 电子邮件导入和与外部邮箱同步。这将“使 Tutanota 能够从外部邮箱导入电子邮件，并在将数据存储在 Tutanota 服务器上之前在设备本地加密数据。”
|
||||
* 电子邮件的离线可用
|
||||
* 双因子身份验证
|
||||
|
||||
### 如何安装 Tutanota 桌面客户端？
|
||||
|
||||
![][12]
|
||||
在 Tutanota 中写邮件
|
||||
|
||||
*在 Tutanota 中写邮件*
|
||||
|
||||
你可以直接从 Tutanota 的网站[下载][2] Beta 版应用。它们有[适用于 Linux 的 AppImage 文件][13]、适用于 Windows 的 .exe 文件和适用于 macOS 的 .app 文件。你可以将你遇到的任何 bug 发布到 Tutanota 的 [GitHub 帐号中][14]。
|
||||
|
||||
为了证明应用的安全性，Tutanota 签名了每个版本。 “签名确保桌面客户端以及任何更新直接来自我们且未被篡改。”你可以使用 Tutanota 的 [GitHub 页面][15]来验证签名。
|
||||
为了证明应用的安全性，Tutanota 签名了每个版本。“签名确保桌面客户端以及任何更新直接来自我们且未被篡改。”你可以使用 Tutanota 的 [GitHub 页面][15]来验证签名。
|
||||
|
||||
请记住，你需要先创建一个 Tutanota 帐户才能使用它。该邮件客户端设计上只能用在 Tutanota。
|
||||
|
||||
@ -83,9 +82,8 @@ Tutanota 桌面应用
|
||||
|
||||
你曾经使用过 [Tutanota][16] 么？如果没有，你最喜欢的关心隐私的邮件服务是什么？请在下面的评论中告诉我们。
|
||||
|
||||
如果你觉得这篇文章很有趣，请花些时间在社交媒体、Hacker News 或 [Reddit][17] 上分享。
|
||||
如果你觉得这篇文章很有趣，请花些时间在社交媒体上分享。
|
||||
|
||||
![][18]
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
@ -94,7 +92,7 @@ via: https://itsfoss.com/tutanota-desktop
|
||||
作者：[John Paul][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[geekpi](https://github.com/geekpi)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
校对：[wxy](https://github.com/wxy)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
@ -1,28 +1,30 @@
|
||||
[#]: collector: (lujun9972)
|
||||
[#]: translator: (qhwdw)
|
||||
[#]: reviewer: ( )
|
||||
[#]: publisher: ( )
|
||||
[#]: url: ( )
|
||||
[#]: reviewer: (wxy)
|
||||
[#]: publisher: (wxy)
|
||||
[#]: url: (https://linux.cn/article-10687-1.html)
|
||||
[#]: subject: (Let's get physical: How to use GPIO pins on the Raspberry Pi)
|
||||
[#]: via: (https://opensource.com/article/19/3/gpio-pins-raspberry-pi)
|
||||
[#]: author: (Anderson Silva https://opensource.com/users/ansilva)
|
||||
|
||||
进入物理世界：如何使用树莓派的 GPIO 针脚
|
||||
树莓派使用入门：进入物理世界 —— 如何使用树莓派的 GPIO 针脚
|
||||
======
|
||||
在树莓派使用入门的第十篇文章中，我们将学习如何使用 GPIO。
|
||||
|
||||
> 在树莓派使用入门的第十篇文章中，我们将学习如何使用 GPIO。
|
||||
|
||||
|
||||
|
||||
到目前为止，本系列文章主要专注于树莓派的软件方面，而今天我们将学习硬件。在树莓派最初发布时，最让我感兴趣的主要特性之一就是它的 [通用输入输出][1]（GPIO）针脚。GPIO 可以让你的树莓派程序与连接到它上面的传感器、继电器、和其它类型的电子元件与物理世界来交互。
|
||||
|
||||
|
||||
|
||||
树莓派上的每个 GPIO 针脚要么有一个预定义的功能，要么被设计为通用的。另外，不同的树莓派型号要么 26 个，要么有 40 个 GPIO 针脚是你可以随意使用的。在维基百科上有一个 [关于每个针脚的非常详细的说明][2] 以及它的功能介绍。
|
||||
树莓派上的每个 GPIO 针脚要么有一个预定义的功能，要么被设计为通用的。另外，不同的树莓派型号要么 26 个，要么有 40 个 GPIO 针脚，你可以根据情况使用的。在维基百科上有一个 [关于每个针脚的非常详细的说明][2] 以及它的功能介绍。
|
||||
|
||||
你可以使用树莓派的 GPIO 针脚做更多的事情。关于它的 GPIO 的使用我写过一些文章，包括使用树莓派来控制节日彩灯的三篇文章（[第一篇][3]、 [第二篇][4]、和 [第三篇][5]），在这些文章中我通过使用开源程序让灯光随着音乐起舞。
|
||||
|
||||
树莓派社区在不同编程语言上创建不同的库方面做了非常好的一些工作，因此，你能够使用 [C][6]、[Python][7]、 [Scratch][8]、和其它语言与 GPIO 进行交互。
|
||||
树莓派社区在用不同编程语言创建不同的库方面做了非常好的一些工作，因此，你能够使用 [C][6]、[Python][7]、 [Scratch][8] 和其它语言与 GPIO 进行交互。
|
||||
|
||||
另外，如果你想在树莓派与物理世界交互方面获得更好的体验，你可以选用 [Raspberry Pi Sense Hat][9]，它是插入树莓派 GPIO 针脚上的一个很便宜的电路板，借助它你可以通过程序与 LED、驾驶杆、气压计、温度计、温度计、 陀螺仪、加速度计、以及磁力仪来交互。
|
||||
另外，如果你想在树莓派与物理世界交互方面获得更好的体验，你可以选用 [Raspberry Pi Sense Hat][9]，它是插入树莓派 GPIO 针脚上的一个很便宜的电路板，借助它你可以通过程序与 LED、驾驶杆、气压计、温度计、温度计、 陀螺仪、加速度计以及磁力仪来交互。
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
@ -31,7 +33,7 @@ via: https://opensource.com/article/19/3/gpio-pins-raspberry-pi
|
||||
作者：[Anderson Silva][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[qhwdw](https://github.com/qhwdw)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
校对：[wxy](https://github.com/wxy)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
@ -0,0 +1,74 @@
|
||||
[#]: collector: (lujun9972)
|
||||
[#]: translator: (sanfusu)
|
||||
[#]: reviewer: (wxy)
|
||||
[#]: publisher: (wxy)
|
||||
[#]: url: (https://linux.cn/article-10689-1.html)
|
||||
[#]: subject: (Blockchain 2.0: Redefining Financial Services [Part 3])
|
||||
[#]: via: (https://www.ostechnix.com/blockchain-2-0-redefining-financial-services/)
|
||||
[#]: author: (ostechnix https://www.ostechnix.com/author/editor/)
|
||||
|
||||
区块链 2.0：重新定义金融服务（三）
|
||||
======
|
||||
|
||||
|
||||
|
||||
[本系列的前一篇文章][1]侧重于建立背景，以阐明为什么将现有的金融系统向充满未来主义的[区块链][2]体系迈进是“货币”改革的下一个自然步骤。我们将继续了解哪些区块链特性将有助于这一迁移。但是，金融市场十分复杂，并且人们的交易由众多组成部分组成，而不仅仅是货币。
|
||||
|
||||
本部分将探索哪些区块链特性能够让金融机构向区块链平台迁移，并将传统银行和金融系统与其合并。如之前讨论证明的那样，如果有足够的人参与到给定的区块链网络并且支持交易协议，则赋给“代币”的面值将提升并变得更稳定。以比特币（BTC）为例，就和我们习惯使用的纸币一样，像比特币和以太币这样的加密货币，都可以用于所有前者的目的，从购买食物到船只，乃至贷款和购买保险。
|
||||
|
||||
事实上，你所涉及的银行或其他金融机构很可能已经[利用了区块链分类账本技术][r1]。金融行业中区块链技术最显著的用途是建立支付基础设施、基金交易技术和数字身份管理。传统上，后两者是由金融服务业传统的系统处理的。但由于区块链处理上的效率，这些系统正逐渐的向区块链迁移合并。区块链还为这些金融服务业的公司提供了高质量的数据分析解决方案，这一方面之所以能够快速的得到重视，主要得益于最近的数据科学的发展。
|
||||
|
||||
从这一领域前沿阵地的初创企业和项目入手考察，区块链似乎能有所保证，因为这些企业或项目的产品已经开始在市场上扩展开来。
|
||||
|
||||
PayPal，这是一家创建于 1998 年的在线支付公司，现为此类平台中最大的一个，常被视作运营和技术能力的基准。PayPal 很大程度上派生自现有的货币体系。它的创新贡献来自于如何收集并利用消费者数据，以提供即时的在线服务。如今，在线交易已被认为是理所当然的事，其所基于的技术方面，在该行业里的创新极少。拥有坚实的基础是一件好事，但在快速发展的 IT 行业里并不能提供任何竞争力，毕竟每天都有新的标准和新的技术。2014 年，PayPal 子公司 **Braintree** [宣布][r2]与流行的加密货币支付方案解决商 [Coinbase][r3] 和 **GoCoin** 建立了合作关系，以便逐步将比特币和其它加密货币整合到它们的服务平台上。这基本上给了加密货币支付方案解决商的消费者在 PayPal 可靠且熟悉的平台下探索和体验的一个机会。事实上，打车公司 **Uber** 和 Braintree 具有独家合作关系，允许消费者在打车的时候使用比特币。
|
||||
|
||||
**瑞波（Ripple）** 正在让人们在多个区块链之间的操作变得更简单。瑞波已经成为美国各地区银行向前发展的头条新闻，比如，在不需要第三方中介的情况下，将资金双边转移给其他地区银行，从而降低了成本和时间管理费用。[瑞波的 Codius 平台][r4]允许区块链之间互相操作，并为智能合约编入系统提供了方便之门，以最大限度地减少篡改和混乱。建立在这种先进、安全并且可根据需要扩展的平台上，瑞波拥有像瑞银和[渣打银行][r5] 在内的客户列表，更多的银行客户也在期待加入。
|
||||
|
||||
**Kraken**，是一个在全球各地运营的美国加密货币交易所，因其可靠的**加密货币量**估算而闻名，甚至向彭博终端实时提供比特币定价数据。在 2015 年，[他们与菲多尔银行][r6]合作建立世界上第一个提供银行业务和加密货币交易的加密货币银行。
|
||||
|
||||
另一家金融科技公司 [Circle][r7] 则是目前同类公司中规模最大的一家，允许用户投资和交易加密货币衍生资产，类似于传统的货币市场资产。
|
||||
|
||||
如今，像 [Wyre][r8] 和 **Stellar** 这样的公司已经将国际电汇的提前期从平均 3 天降到了 6 小时。有人声称，一旦建立了适当的监管体系，同样的 6 小时可以缩短至几秒钟。
|
||||
|
||||
虽然现在上述内容集中在相关的初创项目上，但是不应忽视更受尊敬的老派金融机构的影响力和能力。这些全球范围内交易量达数十亿美元，已经存在了数十年乃至上百年的机构，在利用区块链及其潜力上有着相当的兴趣。
|
||||
|
||||
前面的文章中我们已经提到，**摩根大通**最近披露了他们在开发加密货币和企业级别的区块链基础分类帐本上的计划。该项目被称为 [Quorum][r9]，被定义为 **“企业级分布式分类帐和智能合约平台”**。这一平台的主要目标是将大量的银行操作逐渐的迁移到 Quorum 中，从而削减像摩根大通这样的公司在保证隐私、安全和透明度上的重大开销。他们声称自己是行业中唯一完整拥有全部的区块链、协议和代币系统的玩家。他们也发布了一个称为 **JPM 硬币** 的加密货币，用于大额即时结算。JPM 硬币是由摩根大通等主要银行支持的首批“稳定币”。稳定币是其价格与现存主要货币系统相关联的加密货币。Quorum 也因其每秒几近 100 次远高于同行的交易量而倍受吹捧，这远远领先于同时代。
|
||||
|
||||
据报道，英国跨国金融巨头巴克莱已经[注册了两项基于区块链的专利][r10]，旨在简化资金转移和 KYC 规程。巴克莱更多的是旨在提高自身的银行操作效率。其中一个应用是创建一个私有区块链网络，用于存储客户的 KYC 信息。经过验证、存储和确认后，这些详细信息将不可变，并且无需再进一步验证。若能实施这一应用，该协议将取消对 KYC 信息多次验证的需求。像印度这样有着高密度人口的发展中国家，其中大部分人口的 KYC 信息尚未被引入正式的银行系统中，若能引入这种具有革新意义的 KYC 系统，将有助于减少随机错误并减少交付时间。据传，巴克莱同时也在探索区块链系统的功能，以便解决信用状态评级和保险赔偿问题。
|
||||
|
||||
这种以区块链作支撑的系统，被用来消除不必要的维护成本，并利用智能合约来为那些需要慎重、安全和速度的企业在行业内赢得竞争力。这些企业产品建立在一个能够确保完整交易以及合同隐私的协议之上，同时建立了可使腐败和贿赂无效的共识机制。
|
||||
|
||||
[普华永道 2017 年的全球金融科技报告][r11] 表示到 2020 年，所有金融科技公司中约有 77％ 将转向基于区块链的技术和流程。高达 90％ 的受访者表示他们计划在 2020 年之前将区块链技术作为生产系统的一部分。他们的判断没错，因为从监管的角度来看，通过转移到基于区块链的系统上，可以确保显著的成本节约和透明度增加。
|
||||
|
||||
由于区块链平台默认内置了监管能力，因此企业从传统系统迁移到运行区块链分类账本的现代网络也是行业监管机构所欢迎的举措。交易和贸易运动可以一劳永逸地进行验证和跟踪。从长远来看，这可能会带来更好的监管和风险管理，更不用说改善了公司和个人的责任。
|
||||
|
||||
虽然对跨越式创新的投资是由企业进行的大量投资顺带所致，但如果认为这些措施不会渗透到最终用户的利益中是具有误导性的。随着银行和金融机构开始采用区块链，这将为他们带来更多的成本节约和效率，而这最终也将对终端消费者有利。透明度和欺诈保护带来的额外好处将改善客户的感受，更重要的是提高人们对银行和金融系统的信任。通过区块链及其与传统服务的整合，金融服务行业急需的革命将成为可能。 在本系列的下一部分中，我们将讨论[房地产中的区块链][3]。
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.ostechnix.com/blockchain-2-0-redefining-financial-services/
|
||||
|
||||
作者：[ostechnix][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[sanfusu](https://github.com/sanfusu)
|
||||
校对：[wxy](https://github.com/wxy)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://www.ostechnix.com/author/editor/
|
||||
[b]: https://github.com/lujun9972
|
||||
[1]: https://linux.cn/article-10668-1.html
|
||||
[2]: https://linux.cn/article-10650-1.html
|
||||
[3]: https://www.ostechnix.com/blockchain-2-0-blockchain-in-real-estate/
|
||||
[r1]: https://www.forbes.com/sites/bernardmarr/2018/01/22/35-amazing-real-world-examples-of-how-blockchain-is-changing-our-world/#170df8de43b5
|
||||
[r2]: https://publicpolicy.paypal-corp.com/issues/blockchain
|
||||
[r3]: https://blog.coinbase.com/coinbase-adds-support-for-paypal-and-credit-cards-21968661d508
|
||||
[r4]: http://fortune.com/2018/06/06/ripple-codius/
|
||||
[r5]: https://www.finextra.com/newsarticle/32048/standard-chartered-to-extend-use-of-ripplenet-to-more-countries
|
||||
[r6]: https://99bitcoins.com/fidor-and-kraken-team-up-for-cryptocurrency-bank/
|
||||
[r7]: https://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=249292386
|
||||
[r8]: https://www.forbes.com/sites/julianmitchell/2018/07/31/wyre-the-blockchain-platform-taking-the-lead-in-cross-border-transactions/#6bc69ade69d7
|
||||
[r9]: https://www.jpmorgan.com/global/Quorum
|
||||
[r10]: https://cointelegraph.com/news/barclays-files-two-digital-currency-and-blockchain-patents-with-u-s-patent-office
|
||||
[r11]: https://www.pwc.com/jg/en/media-release/global-fintech-survey-2017.html
|
||||
@ -1,5 +1,5 @@
|
||||
[#]: collector: (lujun9972)
|
||||
[#]: translator: (mokshal)
|
||||
[#]: translator: ( )
|
||||
[#]: reviewer: ( )
|
||||
[#]: publisher: ( )
|
||||
[#]: subject: (5 reasons to give Linux for the holidays)
|
||||
|
||||
@ -1,63 +0,0 @@
|
||||
[#]: collector: (lujun9972)
|
||||
[#]: translator: (sanfusu)
|
||||
[#]: reviewer: ( )
|
||||
[#]: publisher: ( )
|
||||
[#]: url: ( )
|
||||
[#]: subject: (Blockchain 2.0: Redefining Financial Services [Part 3])
|
||||
[#]: via: (https://www.ostechnix.com/blockchain-2-0-redefining-financial-services/)
|
||||
[#]: author: (EDITOR https://www.ostechnix.com/author/editor/)
|
||||
|
||||
Blockchain 2.0: Redefining Financial Services [Part 3]
|
||||
======
|
||||
|
||||
|
||||
|
||||
The [**previous article of this series**][1] focused on building context to bring forth why moving our existing monetary system to a futuristic [**blockchain**][2] system is the next natural step in the evolution of “money”. We looked at the features of a blockchain platform which would aid in such a move. However, the financial markets are far more complex and composed of numerous other instruments that people trade rather than just a currency.
|
||||
|
||||
This part will explore the features of blockchain which will enable institutions to transform and interlace traditional banking and financing systems with it. As previously discussed, and proved, if enough people participate in a given blockchain network and support the protocols for transactions, the nominal value that can be attributed to the “token” increases and becomes more stable. Take, for instance, Bitcoin (BTC). Like the simple paper currency, we’re all used to, cryptocurrencies such as Bitcoin and Ether can be utilized for all the former’s purposes from buying food to ships and from loaning money to insurance.
|
||||
|
||||
Chances are you are already involved with a bank or any other financial institution that makes use of blockchain ledger technology. The most significant uses of blockchain tech in the finance industry will be in setting up payments infrastructure, fund transfer technologies, and digital identity management. The latter two have traditionally been handled by legacy systems in the financial services industry. These systems are slowly being migrated to blockchain systems owing to their efficiency in handling work like this. The blockchain also offers high-quality data analytics solutions to these firms, an aspect that is quickly gaining prominence because of recent developments in data sciences.[1]
|
||||
|
||||
Considering the start-ups and projects at the cutting edge of innovation in this space first seems warranted due to their products or services already doing the rounds in the market today.
|
||||
|
||||
Starting with PayPal, an online payments company started in 1998, and now among the largest of such platforms, it is considered to be a benchmark in terms of operations and technical prowess. PayPal derives largely from the existing monetary system. Its contribution to innovation came by how it collected and leveraged consumer data to provide services online at instantaneous speeds. Online transactions are taken for granted today with minimal innovation in the industry in terms of the tech that it’s based on. Having a solid foundation is a good thing, but that won’t give anyone an edge over their competition in this fast-paced IT world with new standards and technology being pioneered every other day. In 2014 PayPal subsidiary, **Braintree** announced partnerships with popular cryptocurrency payment solutions including **Coinbase** and **GoCoin** , in a bid to gradually integrate Bitcoin and other popular cryptocurrencies into its service platform. This basically gave its consumers a chance to explore and experience the side of what’s to come under the familiar umbrella cover and reliability of PayPal. In fact, ride-hailing company **Uber** had an exclusive partnership with Braintree to allow customers to pay for rides using Bitcoin.[2][3]
|
||||
|
||||
**Ripple** is making it easier for people to operate between multiple blockchains. Ripple has been in the headlines for moving ahead with regional banks in the US, for instance, to facilitate transferring money bilaterally to other regional banks without the need for a 3rd party intermediary resulting in reduced cost and time overheads. Ripple’s **Codius platform** allows for interoperability between blockchains and opens the doors to smart contracts programmed into the system for minimal tampering and confusion. Built on technology that is highly advanced, secure and scalable to suit needs, Ripple’s platform currently has names such as UBS and Standard Chartered on their client’s list. Many more are expected to join in.[4][5]
|
||||
|
||||
**Kraken** , a US-based cryptocurrency exchange operating in locations around the globe is known for their reliable **crypto quant** estimates even providing Bitcoin pricing data real time to the Bloomberg terminal. In 2015, they partnered with **Fidor Bank** to form what was then the world’s first Cryptocurrency Bank offering customers banking services and products which dealt with cryptocurrencies.[6]
|
||||
|
||||
**Circle** , another FinTech company is currently among the largest of its sorts involved with allowing users to invest and trade in cryptocurrency derived assets, similar to traditional money market assets.[7]
|
||||
|
||||
Companies such as **Wyre** and **Stellar** today have managed to bring down the lead time involved in international wire transfers from an average of 3 days to under 6 hours. Claims have been made saying that once a proper regulatory system is in place the same 6 hours can be brought down to a matter of seconds.[8]
|
||||
|
||||
Now while all of the above have focused on the start-up projects involved, it has to be remembered that the reach and capabilities of the older more respectable financial institutions should not be ignored. Institutions that have existed for decades if not centuries moving billions of dollars worldwide are equally interested in leveraging the blockchain and its potential.
|
||||
|
||||
As we already mentioned in the previous article, **JP Morgan** recently unveiled their plans to exploit cryptocurrencies and the underlying ledger like the functionality of the blockchain for enterprises. The project, called **Quorum** , is defined as an **“Enterprise-ready distributed ledger and smart contract platform”**. The main goal being that gradually the bulk of the bank’s operations would one day be migrated to Quorum thus cutting significant investments that firms such as JP Morgan need to make in order to guarantee privacy, security, and transparency. They’re claimed to be the only player in the industry now to have complete ownership over the whole stack of the blockchain, protocol, and token system. They also released a cryptocurrency called **JPM Coin** meant to be used in transacting high volume settlements instantaneously. JPM coin is among the first “stable coins” to be backed by a major bank such as JP Morgan. A stable coin is a cryptocurrency whose price is linked to an existing major monetary system. Quorum is also touted for its capabilities to process almost 100 transactions a second which is leaps and bounds ahead of its contemporaries.[9]
|
||||
|
||||
**Barclay’s** , a British multinational financial giant is reported to have registered two blockchain-based patents supposedly with the aim of streamlining fund transfers and KYC procedures. Barclay’s proposals though are more aimed toward improving their banking operations’ efficiency. One of the application deals with creating a private blockchain network for storing KYC details of consumers. Once verified, stored and confirmed, these details are immutable and nullifies the need for further verifications down the line. If implemented the protocol will do away with the need for multiple verifications of KYC details. Developing and densely populated countries such as India where a bulk of the population is yet to be inducted into a formal banking system will find the innovative KYC system useful in reducing random errors and lead times involved in the process[10]. Barclay’s is also rumored to be exploring the capabilities of a blockchain system to address credit status ratings and insurance claims.
|
||||
|
||||
Such blockchain backed systems are designed to eliminate needless maintenance costs and leverage the power of smart contracts for enterprises which operate in industries where discretion, security, and speed determine competitive advantage. Being enterprise products, they’re built on protocols that ensure complete transaction and contract privacy along with a consensus mechanism which essentially nullifies corruption and bribery.
|
||||
|
||||
**PwC’s Global Fintech Report** from 2017 states that by 2020, an estimated 77% of all Fintech companies are estimated to switch to blockchain based technologies and processes concerning their operations. A whopping 90 percent of their respondents said that they were planning to adopt blockchain technology as part of an in-production system by 2020. Their judgments are not misplaced as significant cost savings and transparency gains from a regulatory point of view are guaranteed by moving to a blockchain based system.[11]
|
||||
|
||||
Since regulatory capabilities are built into the blockchain platform by default the migration of firms from legacy systems to modern networks running blockchain ledgers is a welcome move for industry regulators as well. Transactions and trade movements can be verified and tracked on the fly once and for all rather than after. This, in the long run, will likely result in better regulation and risk management. Not to mention improved accountability from the part of firms and individuals alike.[11]
|
||||
|
||||
While considerable investments in the space and leaping innovations are courtesy of large investments by established corporates it is misleading to think that such measures wouldn’t permeate the benefits to the end user. As banks and financial institutions start to adopt the blockchain, it will result in increased cost savings and efficiency for them which will ultimately mean good for the end consumer too. The added benefits of transparency and fraud protection will improve customer sentiments and more importantly improve the trust that people place on the banking and financial system. A much-needed revolution in the financial services industry is possible with blockchains and their integration into traditional services.
|
||||
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.ostechnix.com/blockchain-2-0-redefining-financial-services/
|
||||
|
||||
作者：[EDITOR][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://www.ostechnix.com/author/editor/
|
||||
[b]: https://github.com/lujun9972
|
||||
[1]: https://www.ostechnix.com/blockchain-2-0-revolutionizing-the-financial-system/
|
||||
[2]: https://www.ostechnix.com/blockchain-2-0-an-introduction/
|
||||
@ -1,225 +0,0 @@
|
||||
|
||||
Rancher - 容器管理平台
|
||||
======
|
||||
Docker作为一款容器化应用的新兴软件， 被大多数IT公司使用来减少基础设施平台建设的成本。
|
||||
|
||||
通常，没有GUI的docker软件对于Linux管理员很友好，但是对于开发者来说很不友好。当把它搬到生产环境上来，那么它对Linux管理员来说也相当不友好。那么，什么最佳解决方案可以轻松的管理docker。
|
||||
|
||||
仅有的方式那就是提供GUI。Docker API允许第三方平台接入Docker。在市场上有许多docker GUI应用可用。我们已经写了一篇关于Portainer应用的文章。今天我们来讨论另一个应用，Rancher。
|
||||
|
||||
容器让软件开发更容易，让开发者写代码更快且更好的运行它们。但是，在生产环境上运行容器却很困难。
|
||||
|
||||
**推荐阅读 :** [Portainer – A Simple Docker Management GUI][1]
|
||||
|
||||
### What is Rancher
|
||||
[Rancher][2]是一个完整的容器管理平台，在任意基础设施平台的生产环境上，它让容器的部署和运行更容易。它提供了诸如多主机网络，全局、局部负载均衡和卷快照等基础设施服务。它整合原生Docker的管理能力，如Docker Machine和Docker Swarm。它提供了丰富的用户体验，让devops管理员以一个更大的规模在生产环境上运行Docker。
|
||||
|
||||
以下文章导航到在Linux系统上安装Docker。
|
||||
|
||||
**推荐阅读 :**
|
||||
**(#)** [How to install Docker in Linux][3]
|
||||
**(#)** [How to play with Docker images on Linux][4]
|
||||
**(#)** [How to play with Docker containers on Linux][5]
|
||||
**(#)** [How to Install, Run Applications inside Docker Containers][6]
|
||||
|
||||
### Rancher 特性
|
||||
|
||||
* 在两分钟内安装Kubernetes。
|
||||
* 单机启动应用（90个流行的Docker应用）。
|
||||
* 部署和管理Docker更容易。
|
||||
* 全面的生产级容器管理平台。
|
||||
* 在生产环境上快速部署容器。
|
||||
* 强大的自动部署和运营容器技术。
|
||||
* 模块化基础设施服务。
|
||||
* 丰富的编排工具。
|
||||
* Rancher支持多种认证机制。
|
||||
|
||||
|
||||
|
||||
### 怎样安装Rancher
|
||||
|
||||
由于Rancher是以轻量级的Docker容器方式运行，所以它的安装非常简单。Rancher是由一组Docker容器部署。只需要简单的启动两个容器就能运行Rancher。一个容器用作管理服务，另一个容器在各个节点上作为代理。在Linux系统下简单的运行下列命令就能部署Rancher。
|
||||
|
||||
Rancher服务提供了两个不同的安装包标签如`stable`和`latest`。下列命令将会拉去适合的rancher镜像并安装到你的操作系统上。Rancher server仅需要几分钟就可以启动。
|
||||
|
||||
* `latest` : 这个标签是他们的最新开发构建。这些构建将通过rancher CI的自动化框架进行验证，不建议在生产环境使用。
|
||||
* `stable` : 这是最新的稳定发行版本，推荐在生产环境使用。
|
||||
|
||||
|
||||
Rancher的安装方法有多种。在这边教程中我们仅讨论两种方法。
|
||||
|
||||
* 以单一容器的方式安装Rancher（内嵌Rancher数据库）
|
||||
* 以单一容器的方式安装Rancher（外部数据库）
|
||||
|
||||
|
||||
|
||||
### 方法-1
|
||||
|
||||
运行下列命令以单一容器的方式安装rancher服务（内嵌数据库）
|
||||
```
|
||||
$ sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server:stable
|
||||
|
||||
$ sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server:latest
|
||||
|
||||
```
|
||||
|
||||
### 方法-2
|
||||
|
||||
你可以开始Rancher服务时指向外部数据库，而不是使用内部数据库。首先创建所需的数据库，数据库用户为同一个。
|
||||
```
|
||||
> CREATE DATABASE IF NOT EXISTS cattle COLLATE = 'utf8_general_ci' CHARACTER SET = 'utf8';
|
||||
> GRANT ALL ON cattle.* TO 'cattle'@'%' IDENTIFIED BY 'cattle';
|
||||
> GRANT ALL ON cattle.* TO 'cattle'@'localhost' IDENTIFIED BY 'cattle';
|
||||
|
||||
```
|
||||
|
||||
运行下列命令开始Rancher去连接外部数据库。
|
||||
```
|
||||
$ sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server \
|
||||
--db-host myhost.example.com --db-port 3306 --db-user username --db-pass password --db-name cattle
|
||||
|
||||
```
|
||||
如果你想测试Rancher 2.0，使用下列的命令去开始。
|
||||
```
|
||||
$ sudo docker run -d --restart=unless-stopped -p 80:80 -p 443:443 rancher/server:preview
|
||||
|
||||
```
|
||||
|
||||
### 通过GUI访问 & 安装Rancher
|
||||
|
||||
浏览器输入 `http://hostname:8080` or `http://server_ip:8080` 去访问 rancher GUI.
|
||||
|
||||
|
||||
|
||||
### 怎样注册主机
|
||||
|
||||
注册你的主机URL允许去连接到Rancher API。这是一次性设置。
|
||||
|
||||
接下来，点击主菜单下面的`Add a Host`链接或者点击主菜单上的INFRASTRUCTURE >> Add Hosts，点击保存按钮。
|
||||
|
||||
|
||||
|
||||
在rancher里默认访问控制认证机制是没有打开的，因此我们首先需要通过一些方法打开访问控制认证，否则任何人都不能访问GUI。
|
||||
|
||||
点击 >> Admin >> Access Control , 输入下列的值最后点击`打开认证`按钮去打开它。以我的案例，我通过`本地认证`的方式打开。
|
||||
|
||||
* **`Login UserName`** 输入你期望的登录名
|
||||
* **`Full Name`** 输入你的全名
|
||||
* **`Password`** 输入你期望的密码
|
||||
* **`Confirm Password`** 再一次确认密码
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
注销然后使用新的登录凭证重新登陆
|
||||
|
||||
|
||||
现在，我能看到本地认证已经被打开。
|
||||
|
||||
|
||||
|
||||
### 怎样添加主机
|
||||
|
||||
点击注册你的主机后，它将带你进入下一个页面，在那里你能选择不同云服务提供商的Linux主机。我们将添加一个主机运行Rancher服务，因此选择`自定义`选项然后输入必要的信息。
|
||||
|
||||
在第四部输入你服务器的公有IP，运行第5步列出的命令，最后点击`close`按钮。
|
||||
|
||||
```
|
||||
|
||||
$ sudo docker run -e CATTLE_AGENT_IP="192.168.56.2" --rm --privileged -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/rancher:/var/lib/rancher rancher/agent:v1.2.11 http://192.168.56.2:8080/v1/scripts/16A52B9BE2BAB87BB0F5:1546214400000:ODACe3sfis5V6U8E3JASL8jQ
|
||||
|
||||
INFO: Running Agent Registration Process, CATTLE_URL=http://192.168.56.2:8080/v1
|
||||
INFO: Attempting to connect to: http://192.168.56.2:8080/v1
|
||||
INFO: http://192.168.56.2:8080/v1 is accessible
|
||||
INFO: Configured Host Registration URL info: CATTLE_URL=http://192.168.56.2:8080/v1 ENV_URL=http://192.168.56.2:8080/v1
|
||||
INFO: Inspecting host capabilities
|
||||
INFO: Boot2Docker: false
|
||||
INFO: Host writable: true
|
||||
INFO: Token: xxxxxxxx
|
||||
INFO: Running registration
|
||||
INFO: Printing Environment
|
||||
INFO: ENV: CATTLE_ACCESS_KEY=9946BD1DCBCFEF3439F8
|
||||
INFO: ENV: CATTLE_AGENT_IP=192.168.56.2
|
||||
INFO: ENV: CATTLE_HOME=/var/lib/cattle
|
||||
INFO: ENV: CATTLE_REGISTRATION_ACCESS_KEY=registrationToken
|
||||
INFO: ENV: CATTLE_REGISTRATION_SECRET_KEY=xxxxxxx
|
||||
INFO: ENV: CATTLE_SECRET_KEY=xxxxxxx
|
||||
INFO: ENV: CATTLE_URL=http://192.168.56.2:8080/v1
|
||||
INFO: ENV: DETECTED_CATTLE_AGENT_IP=172.17.0.1
|
||||
INFO: ENV: RANCHER_AGENT_IMAGE=rancher/agent:v1.2.11
|
||||
INFO: Launched Rancher Agent: e83b22afd0c023dabc62404f3e74abb1fa99b9a178b05b1728186c9bfca71e8d
|
||||
|
||||
```
|
||||
|
||||
等待几秒钟后新添加的主机将会出现。点击INFRASTRUCTURE >> Hosts 页面。
|
||||
|
||||
|
||||
### 怎样查看容器
|
||||
|
||||
只需要点击下列位置就能列出所有容器。点击 >> INFRASTRUCTURE >> Containers
|
||||
|
||||
|
||||
|
||||
### 怎样创建容器
|
||||
|
||||
非常简单, 只需点击下列位置就能创建容器。
|
||||
|
||||
点击 >> INFRASTRUCTURE >> Containers >> “Add Container” 然后输入每个你需要的信息。 方便测试, 我将创建一个latest标签的Centos容器。
|
||||
|
||||
|
||||
在同样的列表位置，点击 INFRASTRUCTURE >> Containers
|
||||
|
||||
|
||||
点击`Container`名展示容器的性能信息，如CPU，内存，网络和存储。
|
||||
|
||||
|
||||
选择特定容器，然后点击最右边的`三点`按钮或者点击`Actions`按钮对容器进行管理，如停止，启动，克隆，重启等。
|
||||
|
||||
|
||||
如果你想控制台访问容器，只需要点击action按钮中的`Execute Shell`选项即可。
|
||||
|
||||
|
||||
### 怎样从应用目录部署容器
|
||||
|
||||
Rancher 提供了一个应用模版目录，让部署变的很容易，只需要单击一下就可以。
|
||||
它维护了多数流行应用，这些应用由Rancher社区贡献。
|
||||
|
||||
|
||||
点击 >> Catalog >> All >> 选择你需要的应用 >> 最后点击运行去部署。
|
||||
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
浏览: https://www.2daygeek.com/rancher-a-complete-container-management-platform-for-production-environment/
|
||||
|
||||
作者：[Magesh Maruthamuthu][a]
|
||||
译者：[arrowfeng](https://github.com/arrowfeng)
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校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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|
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[a]:https://www.2daygeek.com/author/magesh/
|
||||
[1]:https://www.2daygeek.com/portainer-a-simple-docker-management-gui/
|
||||
[2]:http://rancher.com/
|
||||
[3]:https://www.2daygeek.com/install-docker-on-centos-rhel-fedora-ubuntu-debian-oracle-archi-scentific-linux-mint-opensuse/
|
||||
[4]:https://www.2daygeek.com/list-search-pull-download-remove-docker-images-on-linux/
|
||||
[5]:https://www.2daygeek.com/create-run-list-start-stop-attach-delete-interactive-daemonized-docker-containers-on-linux/
|
||||
[6]:https://www.2daygeek.com/install-run-applications-inside-docker-containers/
|
||||
[7]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
|
||||
[8]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-1.png
|
||||
[9]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-2.png
|
||||
[10]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-3.png
|
||||
[11]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-3a.png
|
||||
[12]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-4.png
|
||||
[13]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-5.png
|
||||
[14]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-6.png
|
||||
[15]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-7.png
|
||||
[16]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-8.png
|
||||
[17]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-9.png
|
||||
[18]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-10.png
|
||||
[19]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-11.png
|
||||
[20]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-12.png
|
||||
[21]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-13.png
|
||||
[22]:https://www.2daygeek.com/wp-content/uploads/2018/02/Install-rancher-container-management-application-in-linux-14.png
|
||||
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