{"id":118,"date":"2026-07-16T09:00:00","date_gmt":"2026-07-16T09:00:00","guid":{"rendered":"https:\/\/team-web-hosting.example\/?p=118"},"modified":"2026-07-16T09:00:00","modified_gmt":"2026-07-16T09:00:00","slug":"infrastructure-as-code-reproduire-environnement","status":"publish","type":"post","link":"https:\/\/webhostingproduct.ovh\/?p=118","title":{"rendered":"Infrastructure as Code : reproduire son environnement"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"\/MEDIA_BASE_URL\/infrastructure-as-code-reproduire-environnement.png\" alt=\"Illustration \u2014 Infrastructure as Code : reproduire son environnement\"\/><\/figure>\n\n<p>Configurer manuellement des serveurs est lent, non document\u00e9 et impossible \u00e0 reproduire \u00e0 l&rsquo;identique. L&rsquo;Infrastructure as Code (IaC) applique \u00e0 l&rsquo;infrastructure les principes qui ont fait leurs preuves pour le code : la d\u00e9crire dans des fichiers versionn\u00e9s, testables et r\u00e9utilisables.<\/p>\n\n<h2>Le principe<\/h2>\n<p>Plut\u00f4t que de cliquer dans une interface pour cr\u00e9er un serveur, une base de donn\u00e9es ou un r\u00e9seau, on \u00e9crit une description de l&rsquo;\u00e9tat souhait\u00e9 dans des fichiers. Un outil lit cette description et provisionne l&rsquo;infrastructure en cons\u00e9quence. L&rsquo;infrastructure devient un artefact logiciel \u00e0 part enti\u00e8re.<\/p>\n\n<h2>Les b\u00e9n\u00e9fices<\/h2>\n<ul>\n<li><strong>Reproductibilit\u00e9 :<\/strong> recr\u00e9er un environnement identique devient trivial, en d\u00e9veloppement comme en production.<\/li>\n<li><strong>Tra\u00e7abilit\u00e9 :<\/strong> chaque changement d&rsquo;infrastructure est versionn\u00e9, avec son historique.<\/li>\n<li><strong>R\u00e9versibilit\u00e9 :<\/strong> revenir \u00e0 une configuration ant\u00e9rieure se fait comme pour du code.<\/li>\n<li><strong>Collaboration :<\/strong> l&rsquo;infrastructure se relit et se r\u00e9vise en \u00e9quipe, via les m\u00eames outils que le code.<\/li>\n<\/ul>\n\n<h2>D\u00e9claratif plut\u00f4t qu&rsquo;imp\u00e9ratif<\/h2>\n<p>L&rsquo;approche la plus r\u00e9pandue est d\u00e9clarative : on d\u00e9crit le r\u00e9sultat voulu (\u00ab je veux deux serveurs et une base de donn\u00e9es \u00bb), et l&rsquo;outil d\u00e9termine les actions pour y parvenir. C&rsquo;est plus robuste que de lister des \u00e9tapes, car l&rsquo;outil sait faire converger l&rsquo;\u00e9tat r\u00e9el vers l&rsquo;\u00e9tat d\u00e9crit, quel que soit le point de d\u00e9part.<\/p>\n\n<h2>La fin de la d\u00e9rive de configuration<\/h2>\n<p>Sans IaC, les environnements d\u00e9rivent : une modification manuelle par-ci, un correctif par-l\u00e0, et personne ne sait plus dans quel \u00e9tat se trouve r\u00e9ellement un serveur. L&rsquo;IaC \u00e9limine cette d\u00e9rive en faisant du code la seule source de v\u00e9rit\u00e9. Ce que le code d\u00e9crit est ce qui existe.<\/p>\n\n<h2>Un socle pour l&rsquo;automatisation<\/h2>\n<p>L&rsquo;IaC est le fondement d&rsquo;un d\u00e9ploiement pleinement automatis\u00e9 : combin\u00e9e \u00e0 la CI\/CD, elle permet de provisionner et de mettre \u00e0 jour l&rsquo;infrastructure sans intervention manuelle. OVHcloud expose ses services via des API et s&rsquo;int\u00e8gre aux outils d&rsquo;IaC du march\u00e9, ce qui permet aux \u00e9quipes de g\u00e9rer une infrastructure europ\u00e9enne de fa\u00e7on programmatique et reproductible.<\/p>","protected":false},"excerpt":{"rendered":"<p>D\u00e9crire son infrastructure dans du code la rend reproductible, versionn\u00e9e et fiable. Un pilier des pratiques DevOps modernes.<\/p>\n","protected":false},"author":1,"featured_media":1118,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-118","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-developpement-devops"],"_links":{"self":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/posts\/118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118"}],"version-history":[{"count":0,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions"}],"wp:attachment":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}