Cloud & Containers - Everything you need to know

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Frequently cited benefits are lower cost, greater elasticity and less maintenance overhead. However, for many people "using the cloud" means following obscure deployment steps that might seem like black magic. This course aims to make newcomers familiar with cloud-native technology (building container images, deploying applications on Kubernetes etc.) as well as explain the fundamental concepts of the tech (microservices, separation of concerns and least privileges, fault tolerance). In particular, the following topics of application development will be covered: BUILDING; writing applications in a cloud-native way (e.g. to work in an immutable environment) and creating container images according to best-practices; DEPLOYING; using infrastructure-as-code to describe the application deployment (e.g. Helm charts) and using advanced features such as rolling updates and auto-scaling; MONITORING; after multiple containers have been deployed, it is important to keep track of their status and the interaction between the services. Henschel, Jack" /> <meta name="keywords" content="CERN Document Server, WebSearch, CERN Document Server" /> <script type="text/javascript" src="https://cds.cern.ch/js/jquery.min.js"></script>  <link rel="stylesheet" href="https://cds.cern.ch/img/webnews.css" type="text/css" />  <script type="text/javascript" src="https://cds.cern.ch/js/webnews.js?v=20131009"></script> <meta property="fb:app_id" content="137353533001720"/> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ tex2jax: {inlineMath: [['$','$']], processEscapes: true}, showProcessingMessages: false, messageStyle: "none" }); </script> <script src="/MathJax/MathJax.js?config=TeX-AMS_CHTML" type="text/javascript"> </script>  <meta content="Cloud &amp; Containers - Everything you need to know" name="citation_title" /> <meta content="2023/03/06" name="citation_publication_date" /> <meta name="citation_online_date" content="2023/03/08">  <meta content="Cloud &amp; Containers - Everything you need to know" property="og:title" /> <meta content="Inverted CERN School of Computing 2023" property="og:title" /> <meta content="website" property="og:type" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/2851915" property="og:url" /> <meta property="og:video:height" content="360" /> <meta property="og:video:width" content="640" /> <meta property="og:video" content="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-360p-quality.mp4" /> <meta property="og:video:type" content="video/mp4" /> <meta property="og:image" content="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-cover.jpg" /> <meta name="twitter:player:height" content="360" /> <meta name="twitter:player:width" content="640" /> <link rel="image_src" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-cover.jpg" /> <link rel="video_src" href="https://cds.cern.ch/mediaplayer.swf?file=/1208723c20/1208723c20-presentation-360p-quality.mp4&streamer=rtmp://wowza.cern.ch:1935/vod&provider=rtmp&stretching=exactfit&image=https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-cover.jpg"/> <meta name="twitter:player" content="https://cds.cern.ch/video/?"/> <meta content="CERN Document Server" property="og:site_name" /> <meta content="These days, the &quot;cloud&quot; is the default environment for deploying new applications. Frequently cited benefits are lower cost, greater elasticity and less maintenance overhead. However, for many people &quot;using the cloud&quot; means following obscure deployment steps that might seem like black magic. This course aims to make newcomers familiar with cloud-native technology (building container images, deploying applications on Kubernetes etc.) as well as explain the fundamental concepts of the tech (microservices, separation of concerns and least privileges, fault tolerance). In particular, the following topics of application development will be covered: BUILDING; writing applications in a cloud-native way (e.g. to work in an immutable environment) and creating container images according to best-practices; DEPLOYING; using infrastructure-as-code to describe the application deployment (e.g. Helm charts) and using advanced features such as rolling updates and auto-scaling; MONITORING; after multiple containers have been deployed, it is important to keep track of their status and the interaction between the services." property="og:description" />  <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="CERN32Document32Server search" lang="no">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=no&referer=https%3A//cds.cern.ch/record/2851915%3Fln%3Dno" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div>   <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="https://cds.cern.ch/?ln=no">Søk</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=no">Send inn</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=no">Hjelp</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=no">Brukerinnstillinger</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=no">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=no">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=no">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=no">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=no" class="navtrail">Hovedsiden</a> > Cloud & Containers - Everything you need to know </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="on first"><a href="/record/2851915/?ln=no">Informasjon </a></li><li class="disabled"><a>Files </a></li></ul> <div id="tabsSpacer" style="clear:both;height:0px"> </div></div> </div> <div class="detailedrecordboxcontent"> <div class="top-left-folded"></div> <div class="top-right-folded"></div> <div class="inside">  <abbr class="unapi-id" title="2851915"></abbr>  <link href="/img/download_and_embed_buttons.css" rel="stylesheet" type="text/css" /> <style type="text/css">  .video_talk_wrapper{ max-width: 640px; 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'Less..' : 'More..'); return false; }); }); </script><table id="download_movie_box"><tr><td align="right" valign="top" id="download_movie_box_format_label">Mp4:</td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-360p-quality.mp4">270p<br/><span>(presentation)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-1080p-quality.mp4">1080p<br/><span>(presentation)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-720p-quality.mp4">720p<br/><span>(presentation)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presentation-480p-quality.mp4">360p<br/><span>(presentation)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presenter-480p-quality.mp4">360p<br/><span>(presenter)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presenter-1080p-quality.mp4">1080p<br/><span>(presenter)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presenter-360p-quality.mp4">270p<br/><span>(presenter)</span></a></td><td><a id="download_movie_box_internal_link" href="https://lecturemedia.cern.ch/2023/1208723c20/1208723c20-presenter-720p-quality.mp4">720p<br/><span>(presenter)</span></a></td></table> </div> <div id="video_detailbox_embed" style="margin:10px"> <style type="text/css"> #embed_video_box{ background-color: #EEE; border: #DDD solid 1px; margin:0 auto; width: 90%; } #embed_video_box_header{ text-align: center; font-size:small; } </style><table id="embed_video_box"> <tr><th colspan="4" id="embed_video_box_header">Copy-paste this code into your page: </th></tr> <tr><td><textarea readonly="readonly" rows="3" cols="60"><iframe width="640" height="360" frameborder="0" src="https://cds.cern.ch/video/2851915?" allowfullscreen></iframe></textarea></td></tr> </table> </div> <tr><td class="formatRecordLabel"> <span style="white-space:nowrap;">Author(s)</span> </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?f=author&p=Henschel%2C%20Jack&ln=no">Henschel, Jack</a> (speaker) (CERN)</td></tr> <tr><td class="formatRecordLabel"> Corporate <span style="white-space:nowrap;">author(s)</span> </td><td style="padding-left:5px;">CERN. Geneva</td></tr>  <script type="text/javascript"> /* * Changes the Imprint title to Date - Duration as requested by RQF0820114 * This is a hack not to touch the general imprint format element */ $(document).ready(function() { var collections = 'Indico'; if (collections.indexOf('E-LEARNING') > -1) { $('.cern-imprint-label').text('Date - Duration'); } }) </script> <tr><td class="formatRecordLabel cern-imprint-label"> Imprint </td><td style="padding-left:5px;">2023-03-06. - 4463.</td></tr>  <tr><td class="formatRecordLabel"> Series </td><td style="padding-left:5px;">(<a href="/search?f=490__a&p=Inverted%20CSC">Inverted CSC</a>)<br/>(<a href="/search?f=490__a&p=Inverted%20CERN%20School%20of%20Computing%202023">Inverted CERN School of Computing 2023</a>)</td></tr> <tr><td class="formatRecordLabel"> Lecture note </td><td style="padding-left:5px;"> on 2023-03-06T11:15:00<br/></td></tr> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Inverted CSC</td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">These days, the "cloud" is the default environment for deploying new applications. Frequently cited benefits are lower cost, greater elasticity and less maintenance overhead. However, for many people "using the cloud" means following obscure deployment steps that might seem like black magic. This course aims to make newcomers familiar with cloud-native technology (building container images, deploying applications on Kubernetes etc.) as well as explain the fundamental concepts of the tech (microservices, separation of concerns and least privileges, fault tolerance). In particular, the following topics of application development will be covered: BUILDING; writing applications in a cloud-native way (e.g. to work in an immutable environment) and creating container images according to best-practices; DEPLOYING; using infrastructure-as-code to describe the application deployment (e.g. Helm charts) and using advanced features such as rolling updates and auto-scaling; MONITORING; after multiple containers have been deployed, it is important to keep track of their status and the interaction between the services.</td></tr> <tr><td class="formatRecordLabel"> Copyright/License </td><td style="padding-left:5px;"><a href="https://copyright.web.cern.ch/">© 2023-2024 CERN</a></td></tr> <tr><td class="formatRecordLabel"> Submitted by </td><td style="padding-left:5px;"><a href="mailto:sebastian.lopienski@cern.ch">sebastian.lopienski@cern.ch</a></td></tr> </table> <br/><div><div style="clear: both;"> </div></div> <script type="text/javascript"> // Initially hide: $(".longCaption").hide(); // Allow to toggle visibility: $(".toggleLongCaption").toggle(function(){ $(this).siblings(".longCaption").show('fast'); var thisElem = $(this); thisElem.text(thisElem.text() === "more" ? 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