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crazylion lee

Welcome to the Mink documentation! - Mink 1.6 documentation - 0 views

mink.behat.org/latest

php puppeteer

shared by crazylion lee on 05 Jul 19 - No Cached
  • crazylion lee on 05 Jul 19
     
    "One of the most important parts in the web is a browser. A browser is the window through which web users interact with web applications and other users. Users are always talking with web applications through browsers. "
crazylion lee

GitHub - skavanagh/KeyBox: KeyBox is a web-based SSH console that centrally manages adm... - 2 views

github.com/KeyBox

ssh web terminal

shared by crazylion lee on 12 Oct 18 - No Cached
  • crazylion lee on 12 Oct 18
     
    "KeyBox is a web-based SSH console that centrally manages administrative access to systems. Web-based administration is combined with management and distribution of user's public SSH keys. https://www.sshkeybox.com"
crazylion lee

Rocket: Web Framework for Rust - 1 views

rocket.rs

framework web rust

shared by crazylion lee on 24 Dec 16 - No Cached
  • crazylion lee on 24 Dec 16
     
    "Rocket is a web framework for Rust that makes it simple to write fast web applications without sacrificing flexibility or type safety. All with minimal code."
crazylion lee

Roda: Routing Tree Web Framework Toolkit - Why - 0 views

roda.jeremyevans.net/why.html

web framework ruby rack Sinatra

shared by crazylion lee on 31 Aug 15 - No Cached
  • crazylion lee on 31 Aug 15
     
    "There are already plenty of Ruby web frameworks. Why another one? Well, Roda has a very useful combination of features that make web development easy. It's designed to be fast, DRY, and correct. "
張 旭

The Asset Pipeline - Ruby on Rails Guides - 0 views

guides.rubyonrails.org/asset_pipeline.html

rails image javascript font CSS file

shared by 張 旭 on 29 Dec 14 - No Cached
  • provides a framework to concatenate and minify or compress JavaScript and CSS assets
  • adds the ability to write these assets in other languages and pre-processors such as CoffeeScript, Sass and ERB
  • invalidate the cache by altering this fingerprint
  • ...80 more annotations...
  • Rails 4 automatically adds the sass-rails, coffee-rails and uglifier gems to your Gemfile
  • reduce the number of requests that a browser makes to render a web page
  • Starting with version 3.1, Rails defaults to concatenating all JavaScript files into one master .js file and all CSS files into one master .css file
  • In production, Rails inserts an MD5 fingerprint into each filename so that the file is cached by the web browser
  • The technique sprockets uses for fingerprinting is to insert a hash of the content into the name, usually at the end.
  • asset minification or compression
  • The sass-rails gem is automatically used for CSS compression if included in Gemfile and no config.assets.css_compressor option is set.
  • Supported languages include Sass for CSS, CoffeeScript for JavaScript, and ERB for both by default.
  • When a filename is unique and based on its content, HTTP headers can be set to encourage caches everywhere (whether at CDNs, at ISPs, in networking equipment, or in web browsers) to keep their own copy of the content
  • asset pipeline is technically no longer a core feature of Rails 4
  • Rails uses for fingerprinting is to insert a hash of the content into the name, usually at the end
  • With the asset pipeline, the preferred location for these assets is now the app/assets directory.
  • Fingerprinting is enabled by default for production and disabled for all other environments
  • The files in app/assets are never served directly in production.
  • Paths are traversed in the order that they occur in the search path
  • You should use app/assets for files that must undergo some pre-processing before they are served.
  • By default .coffee and .scss files will not be precompiled on their own
  • app/assets is for assets that are owned by the application, such as custom images, JavaScript files or stylesheets.
  • lib/assets is for your own libraries' code that doesn't really fit into the scope of the application or those libraries which are shared across applications.
  • vendor/assets is for assets that are owned by outside entities, such as code for JavaScript plugins and CSS frameworks.
  • Any path under assets/* will be searched
  • By default these files will be ready to use by your application immediately using the require_tree directive.
  • By default, this means the files in app/assets take precedence, and will mask corresponding paths in lib and vendor
  • Sprockets uses files named index (with the relevant extensions) for a special purpose
  • Rails.application.config.assets.paths
  • causes turbolinks to check if an asset has been updated and if so loads it into the page
  • if you add an erb extension to a CSS asset (for example, application.css.erb), then helpers like asset_path are available in your CSS rules
  • If you add an erb extension to a JavaScript asset, making it something such as application.js.erb, then you can use the asset_path helper in your JavaScript code
  • The asset pipeline automatically evaluates ERB
  • data URI — a method of embedding the image data directly into the CSS file — you can use the asset_data_uri helper.
  • Sprockets will also look through the paths specified in config.assets.paths, which includes the standard application paths and any paths added by Rails engines.
  • image_tag
  • the closing tag cannot be of the style -%>
  • asset_data_uri
  • app/assets/javascripts/application.js
  • sass-rails provides -url and -path helpers (hyphenated in Sass, underscored in Ruby) for the following asset classes: image, font, video, audio, JavaScript and stylesheet.
  • Rails.application.config.assets.compress
  • In JavaScript files, the directives begin with //=
  • The require_tree directive tells Sprockets to recursively include all JavaScript files in the specified directory into the output.
  • manifest files contain directives — instructions that tell Sprockets which files to require in order to build a single CSS or JavaScript file.
  • You should not rely on any particular order among those
  • Sprockets uses manifest files to determine which assets to include and serve.
  • the family of require directives prevents files from being included twice in the output
  • which files to require in order to build a single CSS or JavaScript file
  • Directives are processed top to bottom, but the order in which files are included by require_tree is unspecified.
  • In JavaScript files, Sprockets directives begin with //=
  • If require_self is called more than once, only the last call is respected.
  • require directive is used to tell Sprockets the files you wish to require.
  • You need not supply the extensions explicitly. Sprockets assumes you are requiring a .js file when done from within a .js file
  • paths must be specified relative to the manifest file
  • require_directory
  • Rails 4 creates both app/assets/javascripts/application.js and app/assets/stylesheets/application.css regardless of whether the --skip-sprockets option is used when creating a new rails application.
  • The file extensions used on an asset determine what preprocessing is applied.
  • app/assets/stylesheets/application.css
  • Additional layers of preprocessing can be requested by adding other extensions, where each extension is processed in a right-to-left manner
  • require_self
  • use the Sass @import rule instead of these Sprockets directives.
  • Keep in mind that the order of these preprocessors is important
  • In development mode, assets are served as separate files in the order they are specified in the manifest file.
  • when these files are requested they are processed by the processors provided by the coffee-script and sass gems and then sent back to the browser as JavaScript and CSS respectively.
  • css.scss.erb
  • js.coffee.erb
  • Keep in mind the order of these preprocessors is important.
  • By default Rails assumes that assets have been precompiled and will be served as static assets by your web server
  • with the Asset Pipeline the :cache and :concat options aren't used anymore
  • Assets are compiled and cached on the first request after the server is started
  • RAILS_ENV=production bundle exec rake assets:precompile
  • Debug mode can also be enabled in Rails helper methods
  • If you set config.assets.initialize_on_precompile to false, be sure to test rake assets:precompile locally before deploying
  • By default Rails assumes assets have been precompiled and will be served as static assets by your web server.
  • a rake task to compile the asset manifests and other files in the pipeline
  • RAILS_ENV=production bin/rake assets:precompile
  • a recipe to handle this in deployment
  • links the folder specified in config.assets.prefix to shared/assets
  • config/initializers/assets.rb
  • The initialize_on_precompile change tells the precompile task to run without invoking Rails
  • The X-Sendfile header is a directive to the web server to ignore the response from the application, and instead serve a specified file from disk
  • the jquery-rails gem which comes with Rails as the standard JavaScript library gem.
  • Possible options for JavaScript compression are :closure, :uglifier and :yui
  • concatenate assets
張 旭

手动安装 Prometheus · 从 Docker 到 Kubernetes 进阶手册 - 1 views

www.qikqiak.com/...6%9C%AC%E4%BD%BF%E7%94%A8.html

kubernetes prometheus monitor log

shared by 張 旭 on 31 Oct 19 - No Cached
  • 参数storage.tsdb.path指定了 TSDB 数据的存储路径、通过storage.tsdb.retention设置了保留多长时间的数据，还有下面的web.enable-admin-api参数可以用来开启对 admin api 的访问权限，参数web.enable-lifecycle非常重要，用来开启支持热更新的，有了这个参数之后，prometheus.yml 配置文件只要更新了，通过执行localhost:9090/-/reload就会立即生效，所以一定要加上这个参数。
  • Prometheus 由多个组件组成，但是其中许多组件是可选的： Prometheus Server：用于抓取指标、存储时间序列数据 exporter：暴露指标让任务来抓 pushgateway：push 的方式将指标数据推送到该网关 alertmanager：处理报警的报警组件 adhoc：用于数据查询
  • scrape_configs 用于控制 prometheus 监控哪些资源。
  • ...6 more annotations...
  • prometheus 通过 HTTP 的方式来暴露的它本身的监控数据
  • prometheus 默认会通过目标的/metrics路径采集 metrics
  • 需要配置 rbac 认证，因为我们需要在 prometheus 中去访问 Kubernetes 的相关信息
  • 要获取的资源信息，在每一个 namespace 下面都有可能存在，所以我们这里使用的是 ClusterRole 的资源对象，值得一提的是我们这里的权限规则声明中有一个nonResourceURLs的属性，是用来对非资源型 metrics 进行操作的权限声明
  • 添加一个securityContext的属性，将其中的runAsUser设置为0，这是因为现在的 prometheus 运行过程中使用的用户是 nobody，否则会出现下面的permission denied之类的权限错误
  • PromQL其实就是 prometheus 便于数据聚合展示开发的一套 ad hoc 查询语言的，你想要查什么找对应函数取你的数据好了。
  • 張 旭 on 31 Oct 19
     
    "参数storage.tsdb.path指定了 TSDB 数据的存储路径、通过storage.tsdb.retention设置了保留多长时间的数据，还有下面的web.enable-admin-api参数可以用来开启对 admin api 的访问权限，参数web.enable-lifecycle非常重要，用来开启支持热更新的，有了这个参数之后，prometheus.yml 配置文件只要更新了，通过执行localhost:9090/-/reload就会立即生效，所以一定要加上这个参数。"
crazylion lee

Build web application with Golang - GitBook - 0 views

www.gitbook.com/...details

go web

shared by crazylion lee on 17 Apr 16 - No Cached
  • crazylion lee on 17 Apr 16
     
    "Build web application with Golang"
crazylion lee

Autofill: What web devs should know, but don't - Cloud Four - 0 views

cloudfour.com/...-web-devs-should-know-but-dont

autofill autocomplete html

shared by crazylion lee on 05 Nov 16 - No Cached
  • crazylion lee on 05 Nov 16
     
    "Autofill: What web devs should know, but don't"
crazylion lee

IPFS is the Distributed Web - 0 views

ipfs.io

p2p web HTTP protocol distributed ipfs

shared by crazylion lee on 27 Nov 16 - No Cached
  • crazylion lee on 27 Nov 16
     
    " A peer-to-peer hypermedia protocol to make the web faster, safer, and more open."
張 旭

CGI、FastCGI和PHPFPM关系图解 - 歪麦博客 - 1 views

www.awaimai.com/371.html

web server CGI

shared by 張 旭 on 30 Dec 16 - No Cached
  • Web Server（如Apache）只是内容的分发者
  • Web Server 一般指Apache、Nginx、IIS、Lighttpd、Tomcat等服务器
  • Web Application 一般指PHP、Java、Asp.net等应用程序
  • ...1 more annotation...
  • Apache/Nginx + FastCGI + PHP-FPM(+PHP-CGI)
張 旭

也许，DOM 不是答案 - 阮一峰的网络日志 - 0 views

www.ruanyifeng.com/...future-of-dom.html

web application phone performance DOM

shared by 張 旭 on 23 Jan 17 - No Cached
  • 如果将来有一天，Web app会成为主流，一定有一个前提，那就是它的性能可以赶上Native app
  • Web app输给Native app的地方，不是界面（UI），而是操作性能
  • Web基于DOM，而DOM很慢。浏览器打开网页时，需要解析文档，在内存中生成DOM结构，如果遇到复杂的文档，这个过程是很慢的。可以想象一下，如果网页上有上万个、甚至几十万个形状（不管是图片或CSS），生成DOM需要多久？更不要提与其中某一个形状互动了。
  • ...10 more annotations...
  • 所有的DOM操作都是同步的，会堵塞浏览器。JavaScript操作DOM时，必须等前一个操作结束，才能执行后一个操作。
  • 浏览器重绘网页的频率是60FPS（即16毫秒/帧），JavaScript做不到在16毫秒内完成DOM操作，因此产生了跳帧。
  • 没有使用DOM，而是将整个网站用canvas输出
  • canvas可以被硬件加速
  • 主要是canvas只是一个位图，本身没有语义，如果要在它上面实现UI，等于HTML语言已有的东西都要再发明一遍，比如如何实现超链接、如何实现CSS效果等等。
  • canvas不是自适应的（responsive），文字在哪里断行，都要自己计算，而且用户也无法选中文本
  • 多线程浏览器
  • DOM的异步操作。JavaScript对DOM的操作不再是同步的，而是触发后，交给Event Loop机制进行监听。
  • 用数据库取代DOM
  • 非DOM方案。浏览器不再将网页处理成DOM结构，而是变为其他结构
crazylion lee

Google Open Source Blog: Omnitone: Spatial audio on the web - 0 views

opensource.googleblog.com/...tone-spatial-audio-on-web.html

audio google spatial

shared by crazylion lee on 30 Jan 17 - No Cached
  • crazylion lee on 30 Jan 17
     
    "Omnitone: Spatial audio on the web"
crazylion lee

Pakyow Web Framework - 0 views

pakyow.org

web framework ruby

shared by crazylion lee on 10 Jun 16 - No Cached
  • crazylion lee on 10 Jun 16
     
    "Pakyow lets you build modern apps that don't break the web."
crazylion lee

mozilla/fathom: A framework for extracting meaning from web pages - 0 views

github.com/...fathom

javascript framework web parser

shared by crazylion lee on 18 Jul 16 - No Cached
  • crazylion lee on 18 Jul 16
     
    "A framework for extracting meaning from web pages "
crazylion lee

mapmeld/fortran-machine: Testing a Fortran MVC web platform - 0 views

github.com/...fortran-machine

fortran mvc web

shared by crazylion lee on 22 Jun 16 - No Cached
  • crazylion lee on 22 Jun 16
     
    "Testing a Fortran MVC web platform https://fortran.io"
張 旭

The Twelve-Factor App - 0 views

12factor.net

development software web

shared by 張 旭 on 01 Jan 19 - No Cached
  • software is commonly delivered as a service: called web apps, or software-as-a-service.
  • Use declarative formats for setup automation
  • offering maximum portability between execution environments
  • ...18 more annotations...
  • obviating the need for servers and systems administration
  • Minimize divergence between development and production
  • scale up without significant changes to tooling, architecture, or development practices
  • Ops engineers who deploy or manage such applications.
  • developer building applications which run as a service
  • One codebase
  • many deploys
  • in the environment
  • services as attached resources
  • Explicitly declare
  • separate build and run stages
  • stateless processes
  • Export services via port binding
  • Scale out
  • fast startup and graceful shutdown
  • as similar as possible
  • logs as event streams
  • admin/management tasks as one-off processes
  • 張 旭 on 01 Jan 19
     
    "software is commonly delivered as a service: called web apps, or software-as-a-service"
crazylion lee

QMachine - 0 views

www.qmachine.org

bio

shared by crazylion lee on 14 May 17 - No Cached
  • crazylion lee on 14 May 17
     
    "Mix High Performance Computing with the World Wide Web and you'll get QMachine, a web service that can incorporate ordinary browsers into a World Wide Computer - without installing anything."
crazylion lee

CodeFlask.js -- Simple code editor for awesome web pages. - 0 views

kazzkiq.github.io/CodeFlask.js

wysiwyg code editor

shared by crazylion lee on 16 Oct 15 - No Cached
  • crazylion lee on 16 Oct 15
     
    "A micro code-editor for awesome web pages."
crazylion lee

Accelerated Mobile Pages - A new approach to web performance - 0 views

www.ampproject.org/how-it-works

performance mobile

shared by crazylion lee on 15 Oct 15 - No Cached
  • crazylion lee on 15 Oct 15
     
    "A new approach to web performance"
crazylion lee

Caddy - The HTTP/2 Web Server with Fully Managed TLS - 1 views

caddyserver.com

http http_2 http2 server

shared by crazylion lee on 22 Oct 16 - No Cached
  • crazylion lee on 22 Oct 16
     
    "The HTTP/2 web server with automatic HTTPS "
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