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[#]: collector: (lujun9972)
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[#]: translator: ( )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (The fastest open source CPU ever, Facebook shares AI algorithms fighting harmful content, and more news)
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[#]: via: (https://opensource.com/article/19/8/news-august-3)
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[#]: author: (Lauren Maffeo https://opensource.com/users/lmaffeo)
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The fastest open source CPU ever, Facebook shares AI algorithms fighting harmful content, and more news
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======
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Catch up on the biggest open source headlines from the past two weeks.
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![Weekly news roundup with TV][1]
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In this edition of our open source news roundup, we share Facebook's choice to open source two algorithms for finding harmful content, Apple's new role in the Data Transfer Project, and more news you should know.
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### Facebook open sources algorithms used to find harmful content
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Facebook announced that it has [open sourced two algorithms][2] used to find child exploitation, threats of terrorism, and graphic violence on the platform. In a blog post on August 1st, Facebook shared that PDQ and TMK+PDQF–two technologies that store files as digital hashes, then compare them with known examples of harmful content–are [now live on GitHub][3].
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The code release comes amidst increased pressure to get harmful content off the platform as soon as possible. After March's mass murder in New Zealand was streamed on Facebook Live, the Australian government [threatened Facebook execs with fines and jail time][4] if the video wasn't promptly removed. By releasing the source code for these algorithms, Facebook said that it hopes nonprofits, tech companies, and solo developers can all help them find and remove harmful content faster.
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### Alibaba launches the fastest open source CPU
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Pingtouge Semiconductor - an Alibaba subsidiary - [announced its Xuantie 91 processor][5] last month. It's equipped to manage infrastructure for AI, the IoT, 5G, and autonomous vehicles, among other projects. It boasts a a 7.1 Coremark/MHz, making it the fastest open source CPU on the market.
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Pintogue announced plans to make its polished code available on GitHub this September. Analysts view this release as a power move to help China hit its goal of using local suppliers to meet 40 percent of processor demand by 2021. Recent tariffs on behalf of the U.S. threaten to derail this goal, creating the need for open source computer components.
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### Mattermost makes the case for open source collaboration apps
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All open source communities benefit from one or more places to communicate with each other. The world of team chat apps seems dominated by minimal, mighty tools like Slack and Microsoft Teams. Most options are cloud-based and proprietary; Mattermost takes a different approach by selling the value of open source collaboration apps.
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> “People want an open-source alternative because they need the trust, the flexibility and the innovation that only open source is able to deliver,” said Ian Tien, co-founder and CEO of Mattermost.
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With clients that range from Uber to the Department of Defense, Mattermost cornered a crucial market: Teams that want open source software they can trust and install on their own servers. For businesses that need collaboration apps to run on their internal infrastructure, Mattermost fills a gap that [Atlassian left bare][6]. In an article for Computerworld, Matthew Finnegan [explores][7] why on-premises, open source chat tools aren't dead yet.
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### Apple joins the open source Data Transfer Project
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Google, Facebook, Twitter, and Microsoft united last year to create the Data Transfer Project (DTP). Hailed as a way to boost data security and user agency over their own data, the DTP is a rare show of solidarity in tech. This week, Apple announced that they'll [join the fold][8].
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The DTP's goal is to help users transfer their data from one online service to another via an open source platform. DTP aims to take out the middleman by using APIs and authorization tools to let users transfer their data from one service to another. This would erase the need for users to download their data, then upload it to another service. Apple's choice to join the DTP will allow users to transfer data in and out of iCloud, and could be a big win for privacy advocates.
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#### In other news
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* [FlexiWAN's open source SD-WAN available for download in public beta release][9]
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* [Open source Windows Calculator app to get Always-on-Top mode][10]
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* [With Zowe, open source and DevOps are democratizing the mainframe computer][11]
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* [Mozilla debuts implementation of WebThings Gateway open source router firmware][12]
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* [Updated: Contributing to the Mozilla code base][13]
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_Thanks, as always, to Opensource.com staff members and moderators for their help this week._
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/19/8/news-august-3
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作者：[Lauren Maffeo][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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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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[a]: https://opensource.com/users/lmaffeo
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[b]: https://github.com/lujun9972
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[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/weekly_news_roundup_tv.png?itok=B6PM4S1i (Weekly news roundup with TV)
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[2]: https://www.theverge.com/2019/8/1/20750752/facebook-child-exploitation-terrorism-open-source-algorithm-pdq-tmk
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[3]: https://github.com/facebook/ThreatExchange/tree/master/hashing/tmk
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[4]: https://www.buzzfeed.com/hannahryan/social-media-facebook-livestreaming-laws-christchurch
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[5]: https://hexus.net/tech/news/cpu/133229-alibabas-16-core-risc-v-fastest-open-source-cpu-yet/
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[6]: https://lab.getapp.com/atlassian-slack-on-premise-software/
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[7]: https://www.computerworld.com/article/3428679/mattermost-makes-case-for-open-source-as-team-messaging-market-booms.html
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[8]: https://www.techspot.com/news/81221-apple-joins-data-transfer-project-open-source-project.html
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[9]: https://www.fiercetelecom.com/telecom/flexiwan-s-open-source-sd-wan-available-for-download-public-beta-release
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[10]: https://mspoweruser.com/open-source-windows-calculator-app-to-get-always-on-top-mode/
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[11]: https://siliconangle.com/2019/07/29/zowe-open-source-devops-democratizing-mainframe-computer/
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[12]: https://venturebeat.com/2019/07/25/mozilla-debuts-webthings-gateway-open-source-router-firmware-for-turris-omnia/
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[13]: https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Introduction
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@ -1,77 +0,0 @@
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[#]: collector: (lujun9972)
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[#]: translator: ( )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (What is a golden image?)
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[#]: via: (https://opensource.com/article/19/7/what-golden-image)
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[#]: author: (Seth Kenlon https://opensource.com/users/seth)
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What is a golden image?
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======
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Working on projects that will be distributed widely? Learn more about
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golden images so it's easy to revert to a "perfect" state if things go
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wrong.
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![Gold star][1]
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If you’re in quality assurance, system administration, or (believe it or not) media production, you might have heard some variation of the term _gold master_, _golden image_, or _master image_, and so on. It’s a term that has made its way into the collective consciousness of anyone involved in creating one _perfect_ model and then producing many duplicates from that mold. That’s what a gold master, or golden image, is: The virtual mold from which you cast your distributable models.
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In media production, the theory is that a crew works toward the gold master. This final product is one of a kind. It looks and sounds the best a movie or an album (or whatever it is) can possibly look and sound. Copies of this master image are made, compressed, and sent out to the eager public.
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In software, a similar idea is associated with the term. Once software has been compiled and tested and re-tested, the perfect build is declared _gold_. No further changes are allowed, and all distributable copies are generated from this master image (this used to actually mean something, back when software was distributed on CDs or DVDs).
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And in system administration, you may encounter golden images of an organization’s chosen operating system, with the important settings *baked in—*the virtual private network (VPN) certificates are already in place, incoming email servers are already set in the email client, and so on. Similarly, you might also hear this term in the world of virtual machines (VMs), where a _golden image_ of a carefully configured virtual drive is the source from which all new virtual machines are cloned.
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### GNOME Boxes
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The concept of a gold master is simple, but putting it into practice is often overlooked. Sometimes, your team is just so happy to have reached their goal that no one stops to think about designating the achievement as the authoritative version. At other times, there’s no simple mechanism for doing this.
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A golden image is equal parts historical preservation and a backup plan in advance. Once you craft a perfect model of whatever it is you were toiling over, you owe it to yourself to preserve that work, because it not only marks your progress, but it serves as a fallback should you stumble as you continue your work.
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[GNOME Boxes][2], the virtualization platform that ships with the GNOME desktop, can provide a simple demonstration. If you’ve never used GNOME Boxes, you can learn the basics from Alan Formy-Duval in his article [Getting started with GNOME Boxes][3].
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Imagine that you used GNOME boxes to create a virtual machine, and then installed an operating system into that VM. Now, you want to make a golden image. GNOME Boxes is one step ahead of you: It has already taken a snapshot of your install, which can serve as the golden image for a stock OS installation.
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With GNOME Boxes open and in the dashboard view, right-click on any virtual machine and select **Properties**. In the **Properties** window, select the **Snapshots** tab. The first snapshot, created automatically by GNOME Boxes, is **Just Installed**. As its name suggests, this is the operating system as you originally installed it onto its virtual machine.
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![The Just Installed snapshot, or initial golden image, in GNOME Boxes.][4]
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Should your virtual machine reach a state that you did not intend, you can always revert to this **Just Installed** image.
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Of course, reverting back to the OS after it’s just been installed would be a drastic measure if you’ve already fine-tuned the environment for yourself. That’s why it’s a common workflow with virtual machines to first install the OS, then modify it to suit your requirements or preferences, and then take a snapshot, declaring that snapshot as your configured golden image. For instance, if you are using the virtual machine for [Flatpak][5] packaging, then after your initial install you might add software and Flatpak development tools, construct your working environment, and then take a snapshot. Once the snapshot is created, you can rename the virtual machine to indicate its true purpose in life.
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To rename a virtual machine, right-click on its thumbnail in the dashboard view, and select **Properties**. In the **Properties** window, enter a new name:
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![Renaming your VM image in GNOME Boxes.][6]
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To make a clone of your golden image, right-click on the virtual machine in the GNOME Boxes interfaces and select **Clone**.
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![Cloning your golden image in GNOME Boxes.][7]
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You now have a clone from your golden image’s latest snapshot.
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### Golden
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There are few disciplines that can’t benefit from golden images. Whether you’re tagging releases in [Git][8], taking snapshots in Boxes, pressing a prototype vinyl, printing a book for approval, designing a screen print for mass production, or fashioning a literal mold, the archetype is everything. It’s just one more way that modern technology lets us humans work smarter rather than harder, so make a golden image for your project, and generate clones as often as you need.
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/19/7/what-golden-image
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作者：[Seth Kenlon][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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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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[a]: https://opensource.com/users/seth
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[b]: https://github.com/lujun9972
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[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/origami_star_gold_best_top.jpg?itok=aEc0eutt (Gold star)
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[2]: https://wiki.gnome.org/Apps/Boxes
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[3]: https://opensource.com/article/19/5/getting-started-gnome-boxes-virtualization
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[4]: https://opensource.com/sites/default/files/uploads/snapshots.jpg (The Just Installed snapshot, or initial golden image.)
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[5]: https://opensource.com/business/16/8/flatpak
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[6]: https://opensource.com/sites/default/files/uploads/boxes-rename_0.jpg (Renaming your virtual machine in GNOME Boxes.)
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[7]: https://opensource.com/sites/default/files/uploads/boxes-clone.jpg (Cloning your golden image in GNOME Boxes.)
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[8]: https://git-scm.com
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77
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77
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[#]: collector: (lujun9972)
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[#]: translator: (wxy)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (What is a golden image?)
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[#]: via: (https://opensource.com/article/19/7/what-golden-image)
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[#]: author: (Seth Kenlon https://opensource.com/users/seth)
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什么是黄金镜像？
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======
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> 正在开发一个将广泛分发的项目吗？了解一下黄金镜像吧，以便在出现问题时轻松恢复到“完美”状态。
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![Gold star][1]
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如果你正在进行质量保证、系统管理或媒体制作（没想到吧），你可能听说过<ruby>正式版<rt>gold master</rt></ruby>、<ruby>黄金镜像<rt>golden image</rt></ruby>或<ruby>母片<rt>master image</rt></ruby>等等这一术语的某些变体。这个术语已经进入了每个参与创建一个**完美**模具的人的集体意识，然后从该模具中产生许多复制品。母片或黄金镜像就是：一种虚拟模具，你可以从中打造可分发的模型。
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在媒体制作中，这就是全体人员努力开发母片的过程。这个最终产品是独一无二的。它看起来和听起来像是能够看和听的最好的电影或专辑（或其他任何东西）。可以制作和压缩该母片的副本并发送给急切的公众。
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在软件中，与该术语相关联的也是类似的思路。一旦软件经过编译和一再测试，完美的构建就会被声明为**黄金版本**。不允许对它进一步更改，并且所有可分发的副本都是从此母片生成的（当软件是用 CD 或 DVD 分发时，这实际上意味着母盘）。
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在系统管理中，你可能会遇到你的机构所选的操作系统的黄金镜像，其中的重要设置已经就绪，如安装好的虚拟专用网络（VPN）证书、设置好的电子邮件收件服务器的邮件客户端，等等。同样，你可能也会在虚拟机（VM）的世界中听到这个术语，其中精心配置的虚拟驱动器的黄金镜像是所有克隆的新虚拟机的源头。
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### GNOME Boxes
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正式版的概念很简单，但往往忽视将其付诸实践。有时，你的团队很高兴能够达成他们的目标，但没有人停下来考虑将这些成就指定为权威版本。在其他时候，没有简单的机制来做到这一点。
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黄金镜像等同于部分历史保存和提前备份计划。一旦你制作了一个完美的模型，无论你正在努力做什么，你都应该为自己保留这项工作，因为它不仅标志着你的进步，而且如果你继续工作时遇到问题，它就会成为一个后备。
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[GNOME Boxes][2]，是随 GNOME 桌面一起提供的虚拟化平台，可以提供简单的演示。如果你从未使用过GNOME Boxes，你可以在 Alan Formy-Duval 的文章 [GNOME Boxes 入门][3]中学习它的基础知识。
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想象一下，你使用 GNOME Boxes 创建虚拟机，然后将操作系统安装到该 VM 中。现在，你想要制作一个黄金镜像。GNOME Boxes 已经率先摄取了你的安装快照，可以作为库存的操作系统安装的黄金镜像。
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打开 GNOME Boxes 并在仪表板视图中，右键单击任何虚拟机，然后选择**属性**。 在**属性**窗口中，选择**快照**选项卡。由 GNOME Boxes 自动创建的第一个快照是“Just Installed”。顾名思义，这是你最初安装到虚拟机上的操作系统。
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![The Just Installed snapshot, or initial golden image, in GNOME Boxes.][4]
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如果你的虚拟机变成了你不想要的状态，你可以随时恢复为“Just Installed”镜像。
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当然，如果你已经为自己调整了环境，那么在安装后恢复操作系统将是一个极大的工程。这就是为什么虚拟机的常见工作流程是：首先安装操作系统，然后根据你的要求或偏好修改它，然后拍摄快照，将该快照声明为配置好的黄金镜像。例如，如果你使用虚拟机进行 [Flatpak][5] 打包，那么在初始安装之后，你可以添加软件和 Flatpak 开发工具，构建工作环境，然后拍摄快照。创建快照后，你可以重命名该虚拟机以指示其真实用途。
|
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|
||||
要重命名虚拟机，请在仪表板视图中右键单击其缩略图，然后选择**属性**。在**属性**窗口中，输入新名称：
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|
||||
![Renaming your VM image in GNOME Boxes.][6]
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要克隆你的黄金映像，请右键单击 GNOME Boxes 界面中的虚拟机，然后选择**克隆**。
|
||||
|
||||
![Cloning your golden image in GNOME Boxes.][7]
|
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|
||||
你现在可以从黄金映像的最新快照中克隆了。
|
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### 黄金镜像
|
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|
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很少有学科无法从黄金镜像中受益。无论你是在 [Git][8] 中标记版本、在 Boxes 中拍摄快照、出版原型黑胶唱片、打印书籍以进行审核、设计用于批量生产的丝网印刷、还是制作文字模具，到处都是各种原型。这只是现代技术让我们人类更聪明而不是更努力的另一种方式，因此为你的项目制作一个黄金镜像，并根据需要随时生成克隆。
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|
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--------------------------------------------------------------------------------
|
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|
||||
via: https://opensource.com/article/19/7/what-golden-image
|
||||
|
||||
作者：[Seth Kenlon][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[wxy](https://github.com/wxy)
|
||||
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://opensource.com/users/seth
|
||||
[b]: https://github.com/lujun9972
|
||||
[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/origami_star_gold_best_top.jpg?itok=aEc0eutt (Gold star)
|
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[2]: https://wiki.gnome.org/Apps/Boxes
|
||||
[3]: https://opensource.com/article/19/5/getting-started-gnome-boxes-virtualization
|
||||
[4]: https://opensource.com/sites/default/files/uploads/snapshots.jpg (The Just Installed snapshot, or initial golden image.)
|
||||
[5]: https://opensource.com/business/16/8/flatpak
|
||||
[6]: https://opensource.com/sites/default/files/uploads/boxes-rename_0.jpg (Renaming your virtual machine in GNOME Boxes.)
|
||||
[7]: https://opensource.com/sites/default/files/uploads/boxes-clone.jpg (Cloning your golden image in GNOME Boxes.)
|
||||
[8]: https://git-scm.com
|
||||
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