AWS NLB 也可以指定 IP address 當後端了

Posted on September 24, 2017 by Gea-Suan Lin

月初的時候 AWS ALB 支援 IP address 當後端 (AWS ALB 可以設定 IP address 當作後端伺服器了)，然後推出 AWS NLB (AWS 推出新的 Load Balancer：NLB (Network Load Balancer))，然後這個功能也被做到 NLB 上了：「Elastic Load Balancing: Network Load Balancer now supports load balancing to IP addresses as targets for AWS and on-premises resources」。

就如同說明的，這樣可以透過 VPN 架構 (無論是 AWS Direct Connect 或是一般的 IPsec VPN) 共用機房與雲端上的資源：

We are pleased to announce that Network Load Balancers can now distribute traffic to AWS resources using their IP addresses as targets in addition to the instance IDs. You can now also load balance to resources in on-premises locations reachable over AWS Direct Connect and resources in EC2-Classic. Load balancing across AWS and on-premises resources using the same load balancer makes it easy for you to migrate-to-cloud, burst-to-cloud, or failover-to-cloud.

除了中國區以外的 region 都可以用這個功能了：

Load balancing using IP addresses is available today for existing and new Network Load Balancers in all public AWS regions except the China (Beijing) region. You can get started using the AWS Management Console, AWS Command Line Interface (CLI), or AWS SDK.

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AWS CodeBuild 可以管 Secret 了...

Posted on September 23, 2017 by Gea-Suan Lin

AWS CodeBuild 可以管理 secret 了：「AWS CodeBuild Now Provides Ability To Manage Secrets」。

AWS CodeBuild now further enhances securing your build environment. CodeBuild can now store sensitive information as secrets, which can now get directly passed to your build jobs. This can be achieved by modifying the parameter store directly in your buildspec.yml, or via the CodeBuild console.

在文件裡提到：

We strongly discourage using environment variables to store sensitive values, especially AWS access key IDs and secret access keys. Environment variables can be displayed in plain text using tools such as the AWS CodeBuild console and the AWS CLI. For sensitive values, we recommend you use the parameter-store mapping instead, as described later in this section.

這次算是補上其他家已經有蠻久的功能...

不過在找資料的時候，發現 AWS CodeBuild 提供了每個月一百分鐘的 free quota，不論是新帳號還是現有帳號都一直有？(這點是之前沒注意到的...)

The AWS CodeBuild free tier includes 100 build minutes of build.general1.small per month. The CodeBuild free tier does not expire automatically at the end of your 12-month AWS Free Tier term. It is available to new and existing AWS customers.

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Facebook 決定修改原先的授權條款

Posted on September 23, 2017 by Gea-Suan Lin

Facebook 在各個單位的砲火下決定將本來的 BSD+Patents 授權改為 MIT license：「Relicensing React, Jest, Flow, and Immutable.js」。

Next week, we are going to relicense our open source projects React, Jest, Flow, and Immutable.js under the MIT license.

後面講了很多場面話，聽聽就好... 改成 MIT license 最大的理由應該還是在 PR 面的傷害。

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Adobe Security Team 直接把 Private Key 貼到網誌上面...

Posted on September 23, 2017 by Gea-Suan Lin

Security Team 出這種包...：「In spectacular fail, Adobe security team posts private PGP key on blog」。

Adobe 這次的事情要怎麼說呢，hmmm...

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EFF 因 DRM 退出 W3C

Posted on September 23, 2017 by Gea-Suan Lin

EFF 一直站在反對 DRM 的立場，這次 W3C 通過並公開 DRM 框架規格後，EFF 決定退出 W3C：「World Wide Web Consortium abandons consensus, standardizes DRM with 58.4% support, EFF resigns」。

不算太意外... EFF 對 DRM 的立場一直都很清楚，非常的清楚...

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Amazon EC2 推出 4TB 的機器

Posted on September 23, 2017 by Gea-Suan Lin

之前 Amazon EC2 記憶體最大的機器是 x1.32xlarge 的 2TB RAM (更精確是 1952GB)，現在推出了 4TB RAM 的 x1e.32xlarge (3904GB)：「Now Available – EC2 Instances with 4 TB of Memory」。

現在這個時間點在 us-east-1 的價錢是 USD$26.688/hour (一個月 USD$19215.36)，用的到的人應該付得起？

另外值得注意的是，x1e.32xlarge 雖然比 x1.32xlarge 多了一倍的記憶體，但 vCPU 不變 (都是 128)，而且 ECU 下降了 (從 349 降到 340)。

這個機器目前在 us-east-1、us-west-2、eu-west-1、ap-northeast-1 四區提供服務：

The x1e.32xlarge instances can be launched in On-Demand and Reserved Instance form via the AWS Management Console, AWS Command Line Interface (CLI), AWS SDKs, and AWS Marketplace in the US East (Northern Virginia), US West (Oregon), EU (Ireland), and Asia Pacific (Tokyo) Regions.

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Mozilla 的提案「HTTP Immutable Responses」

Posted on September 20, 2017 by Gea-Suan Lin

狀態已經是 Category: Standards Track 了，RFC 8246 的「HTTP Immutable Responses」：

The immutable HTTP response Cache-Control extension allows servers to identify resources that will not be updated during their freshness lifetime. This ensures that a client never needs to revalidate a cached fresh resource to be certain it has not been modified.

對 Cache-Control 介紹了 immutable，像是這樣：

Cache-Control: max-age=31536000, immutable

依照 MDN 上的資料 (Cache-Control - HTTP | MDN)，目前只有 Edge 與 Firefox 支援，不過既然成為標準了，後續其他瀏覽器應該都會支援 (吧)：

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GitHub Debug

Posted on September 20, 2017 by Gea-Suan Lin

GitHub 推出工具讓使用者可以方便回報狀態：「GitHub Debug」。

做起來不困難，但等於是讓使用者操作 SOP 先提供一些基本的資訊，讓 GitHub 內部的人在處理時會比較輕鬆。

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EC2 的 Spot Instance 可以「接關」

Posted on September 20, 2017 by Gea-Suan Lin

Amazon EC2 的 Spot Instance 可以「接關」了：「New – Stop & Resume Workloads on EC2 Spot Instances」。

當 Spot Instance 的競價不足以標到機器時，他會先關起來 (Stop)，等到價錢低於競價後就會再打開機器，這時候的狀態就會恢復。另外也提到了必須是使用 EBS 的機器才支援：

Amazon EC2 Spot now allows Amazon EBS-backed instances to be stopped in the event of interruption, instead of being terminated when capacity is no longer available at your preferred price. Spot can then fulfill your request by restarting instances from a stopped state when capacity is available within your price and time requirements.

用法是把 Spot Instance 的關機設定設為 Stop：

To use this new feature, choose “stop” instead of “terminate” as the interruption behavior when submitting a persistent Spot request. When you choose “stop”, Spot will shut down your instance upon interruption.

恢復的時候就會儘量保持一樣地開回來 (連 instance id 都相同)：

When capacity is available again within your price and time requirements, Spot will restart your instance. Upon restart, the EBS root device is restored from its prior state, previously attached data volumes are reattached, and the instance retains its instance ID.

是個接關的感覺 XD

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HHVM 的後續

Posted on September 19, 2017 by Gea-Suan Lin

官方對於 HHVM 的未來提出了說明：「The Future of HHVM」。重點就是他們不打算以 PHP7 為目標，打算關起來自己玩...：

Consequently, HHVM will not aim to target PHP7. The HHVM team believes that we have a clear path toward making Hack a fantastic language for web development, untethered from its PHP origins.

如果以 Packagist 上的資料來看 (PHP Versions Stats - 2017.1 Edition)，HHVM 的數量應該是沒人了：

And because a few people have asked me this recently, while HHVM usage is not included above in the graph it is at 0.36% which is a third of PHP 5.3 usage and really hardly significant. I personally think it's fine to support it still in libraries if it just works, or if the fixes involved are minor. If not then it's probably not worth the time investment.

Comment 的地方有註明這是扣掉 CI 的量：

@ocramius: These numbers ignore Travis CI and other CI systems that set the "CI" env var in their workers. Without excluding those HHVM is around 0.95% so it's still low but those .36% is probably actual usage.

這樣就放心可以完全不用管 HHVM 了 XDDD

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