Containers explained: What they are and why you should care

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Topics </a></li><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="11" height="11" viewBox="0 -18 1024 1055"><path d="M810.642 511.557c0 8.905-3.447 16.776-10.284 23.613L322.31 1013.216c-6.835 6.837-14.706 10.284-23.61 10.284s-16.776-3.447-23.613-10.284l-51.303-51.303c-6.837-6.837-10.284-14.707-10.284-23.612s3.447-16.775 10.284-23.61L626.972 511.5 223.784 108.31c-6.837-6.835-10.284-14.706-10.284-23.61s3.447-16.776 10.284-23.613l51.303-51.303C281.924 2.947 289.794-.5 298.7-.5s16.775 3.447 23.61 10.284L800.36 487.83c6.837 6.837 10.284 14.708 10.284 23.613v.114" stroke-width="25" stroke="black"/></svg><li class="rh-navigation-link-container"> Understanding containers </li></ul>  <div class="rh-band-header--component" ><h1 class="rh-band-header-hero-headline" >Understanding containers</h1> </div>  <div class="rh-front-matter--component"><div class="rh-front-matter-wrapper" data-rh-layout="inline-horizontal"><div class="rh-front-matter-metadata"><span class="rh-front-matter-metadata-publish-date">Published April 6, 2023 </span><span class="rh-front-matter-metadata-separator">•</span><pfe-readtime class="rh-front-matter-metadata-readtime" for="article-contents" hidden data-rh-hidden="sm">%t-minute read</pfe-readtime></div><pfe-clipboard class="rh-front-matter-share" role="button" tabindex="0"><span slot="text">Copy URL</span></pfe-clipboard></div></div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <div class="rh-generic--component" > <p>Applications are getting more complex, and the demand to develop faster is ever-increasing. This puts stress on your infrastructure, IT teams, and processes. Containers help you alleviate issues and iterate faster—across multiple environments.</p> </div> </div> </div>  <div class="mboxDefault" data-rh-mbox="inline-promo"><div class="rh-card--layout rh-promo-topic" mbox-applied data-rh-promo=inline data-rh-border-radius=none data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-border="thin"><div class="rh-card-content" data-rh-layout="4 8 vcenter" ><div class="rh-image-embed--component" data-rh-align="full center-mobile" ><div class="rh-image-embed-container"><div class="rh-image-embed-span" ><img class="rh-image-embed-img" src="/rhdc/managed-files/gartner_container_management_leader_announcement_inline_promo.svg" loading="lazy" ></div></div></div><div class="rh-group--layout" data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><div class="rh-band-header--component" data-rh-align=left ><h2 class="rh-band-header-subsection-headline" id="rh-vfc0r">Red Hat named a Leader in the 2024 Gartner® Magic Quadrant™ for second consecutive year</h2></div><div class="rh-generic--component" data-rh-align="left" ><p>Red Hat was named a Leader in the Gartner 2024 Magic Quadrant for Container Management. This year, Red Hat was positioned furthest on the Completeness of Vision axis.</p></div></div><div class="rh-group-footer" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="buttons-flex-left-end" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="buttons-flex-left-end" ><span class="rh-cta--component" data-rh-cta-type="ghost" ><a class="rh-cta-link" href="/en/engage/gartner-magic-quadrant-container-management-analyst-report" target="_self" data-analytics-linkType="cta" data-analytics-text="Read the report" data-analytics-category="Header inline promo|Red Hat named a Leader in the 2023 Gartner® Magic Quadrant™|Container management|Read the report" >Read the report</a></span></div></div></div></div></div></div></div></div></div> <script> window.appEventData = window.appEventData || []; window.appEventData.push({ event: "Inline Mbox Rendered", targetInlineMbox: { latest_inline_mbox: { name: "inline-promo-mbox", selector: "[data-rh-mbox='inline-promo']", }, }, __adobe: { target: { "lang": document.documentElement.lang, "taxonomyTopic": window._rhTarget?.util?.arrayToString(pageData?.taxonomyTopic), "taxonomyProduct": window._rhTarget?.util?.arrayToString(pageData?.taxonomyProduct), "taxonomyPrimaryProduct": document.querySelector('meta[name="taxonomy-primary-product-tid"]')?.content || '', "taxonomySubType": window._rhTarget?.util?.arrayToString(pageData?.taxonomySubType), "taxonomyChallenge": window._rhTarget?.util?.arrayToString(pageData?.taxonomyChallenge) } } }); </script> </header></section></div> </div> <div class="rh-band--layout" data-rh-content='long-form-article'data-rh-band-collapse='' data-rh-unique-id="5221191" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="tall-stacked" ><section class="rh-band-main" data-rh-layout="tall-stacked" ><div class="rh-band-content" data-rh-layout="2 8 2" > <pfe-jump-links-nav id="article-nav" autobuild offset="120" sr-text="Jump to section" ></pfe-jump-links-nav>  <div class="rh-group--layout" id=article-contents data-rh-layout="tall-stacked" > <div class="rh-group-body" data-rh-layout="tall-stacked" >  <pfe-jump-links-panel scrolltarget="article-nav" data-rh-layout=tall-stacked data-rh-layout="tall-stacked" >  <div class="rh-group--layout" data-rh-content-size=xl data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="overview" nav-label="Overview" >What are containers?</h2></div></header><div class="rh-generic--component" ><p>Containers are technologies that allow the packaging and isolation of applications with their entire runtime environment—all of the files necessary to run. This makes it easy to move the contained application between environments (dev, test, production, etc.) while retaining full functionality. Containers are also an important part of <a href="/en/topics/security">IT security</a>. By <a href="/en/topics/security/container-security">building security into the container pipeline</a> and defending infrastructure, containers stay reliable, scalable, and trusted. You can also easily move the containerized application between public, private and hybrid cloud environments and data centers (or on-premises) with consistent behavior and functionality.</p><div class="rc-cta-secondary"><a href="/en/topics/containers/whats-a-linux-container">Continue reading</a></div><div class="rc-cta-secondary"> </div><div class="rc-cta-secondary"><div class="media-element file-default media-youtube-video"><iframe src="https://www.redhat.com/en/media/oembed?url=https%3A//www.youtube.com/watch%3Fv%3D0rdaDpktu6o&max_width=0&max_height=0&hash=NIXju7XkHMTiCQX0RQPa9ttDatj1EWz_e7o-bHlNg6E" width="200" height="113" class="media-oembed-content" loading="lazy" title="Open Answers: What are containers?"></iframe></div><p> </p></div></div></div></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="containers-benefits" nav-label="Containers benefits" >What are the benefits of containers?</h2></div></header><div class="rh-generic--component" ><p>Containers help reduce conflicts between your development and operations teams by separating areas of responsibility. Developers can focus on their apps and operations teams can focus on the infrastructure. And, because containers are based on <a href="/en/topics/open-source/what-is-open-source">open source</a> technology, you get the latest and greatest advancements as soon as they’re available. Container technologies—including <a href="/en/topics/containers/what-is-podman">Podman</a>, <a href="/en/topics/containers/what-is-skopeo">Skopeo</a>, <a href="/en/topics/containers/what-is-buildah">Buildah</a>, <a href="http://thenewstack.io/cri-o-make-kubernetes-center-container-ecosystem/">CRI-O</a>, <a href="/en/topics/containers/what-is-kubernetes">Kubernetes</a>, and <a href="/en/topics/containers/what-is-docker">Docker</a>—help your team simplify, speed up, and orchestrate application development and deployment.</p><p>Containers share the same operating system kernel and isolate the application processes from the rest of the system so the whole thing can be moved, opened, and used across development, testing, and production configurations. Because they are lightweight and portable, containers provide the opportunity for faster development and meeting business needs as they arise. </p><div class="rc-cta-secondary"><a href="/en/technologies/cloud-computing/openshift/try-it">Start using containers for free</a></div><p> </p><div class="media-element file-default media-youtube-video"><iframe src="https://www.redhat.com/en/media/oembed?url=https%3A//www.youtube.com/watch%3Fv%3D44HrqNm_U30&max_width=0&max_height=0&hash=amUAtFYDu574lQCfYG9MVUmL0D6arVSk7l-j6MvtMKY" width="200" height="113" class="media-oembed-content" loading="lazy" title="Containers and hybrid cloud"></iframe></div></div></div></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="container-orchestration" nav-label="Container orchestration" >What is container orchestration?</h2></div></header><div class="rh-generic--component" ><p>Containers let development teams focus on their apps while operations teams focus on the infrastructure. <a href="/en/topics/containers/what-is-container-orchestration">Container orchestration</a> is the way you manage these deployments across an enterprise.</p><p>Kubernetes is an open source platform that automates Linux container operations. It eliminates many of the manual processes involved in deploying and scaling containerized applications. Kubernetes gives you the platform to schedule and run containers on <a href="/en/topics/containers/what-is-a-kubernetes-cluster">clusters</a> of physical or virtual machines. <a href="/en/topics/containers/kubernetes-architecture">Kubernetes architecture</a> divides a cluster into components that work together to maintain the cluster's defined state.</p><p><a href="/en/openshift-4?intcmp=701f20000012jxgAAA">Red Hat® OpenShift® 4</a> is an enterprise-ready Kubernetes platform. It gives developers self-service environments for building, and full-stack automated operations on any infrastructure.</p></div></div><div class="rh-group-footer" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="min-stacked" ><span class="rh-cta--component" data-rh-cta-type="secondary" ><a class="rh-cta-link" href="/en/topics/containers/what-is-kubernetes" title="article | what is kubernetes?" data-analytics-linkType="cta" >Keep reading about Kubernetes<span aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><path d="M31.58 18.24a.64.64 0 0 0-.14-.68l-9-9c-.56-.58-1.47.32-.88.88l7.93 7.94H5a.62.62 0 1 0 0 1.24h24.49l-7.93 7.94a.62.62 0 0 0 .88.88l9-9a.72.72 0 0 0 .14-.2Z"/></svg></span></a></span></div></div></div></div>  <div class="rh-card--layout rh-promo-topic" data-rh-promo=inline data-rh-border-radius=none data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="fit-content-33" data-rh-border="thin"><div class="rh-card-content" data-rh-layout="stacked" ><div class="rh-group--layout" data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><div class="rh-band-header--component" data-rh-align=left ><h2 class="rh-band-header-subsection-headline" id="rh-g8l1c">Containers, clusters, and Ansible meet event-driven automation</h2></div><div class="rh-generic--component" data-rh-align="left" ><p>Building on a foundation of OpenShift, you can use Red Hat Advanced Cluster Management and Red Hat Ansible® Automation Platform together to efficiently deploy and manage multiple Kubernetes clusters across environments.</p></div></div></div></div><footer class="rh-card-footer" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="buttons-flex-left-end" ><span class="rh-cta--component" data-rh-cta-type="brick" ><a class="rh-cta-link" href="/en/resources/containers-clusters-and-event-driven-automation-overview" title="Containers, clusters, and Ansible meet event-driven automation" target="_self" data-analytics-linkType="cta" data-analytics-text="Learn how" >Learn how</a></span></div></div></footer></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="using-containers" nav-label="Using containers" >What can you do with containers?</h2></div></header><div class="rh-generic--component" ><p>You can deploy containers for a number of workloads and use cases–big to small. Containers give your team the underlying technology needed for a <a href="/en/topics/cloud-native-apps">cloud-native development style</a>, so you can get started with <a href="/en/topics/devops">DevOps</a>, <a href="/en/topics/devops/what-is-ci-cd">CI/CD</a> (continuous integration and continuous deployment), and even go <a href="/en/topics/cloud-native-apps/what-is-serverless">serverless</a>.</p><p>Container-based applications can work across highly-distributed cloud architectures. <a href="/en/products/runtimes">Application runtimes middleware</a> provides tools to support a unified environment for development, delivery, integration, and automation.</p><p>You can also deploy <a href="/en/topics/integration">integration</a> technologies in containers, so you can easily scale how you connect apps and data, like <a href="/en/topics/integration/what-is-apache-kafka">real-time data streaming through Apache Kafka</a>. If you're building a microservices architecture, containers are the ideal deployment unit for each microservice and the <a href="/en/topics/microservices/what-is-a-service-mesh">service mesh</a> network that connects them.</p><p>When your business needs the ultimate portability across multiple environments, using containers might be the easiest decision ever.</p><p> </p><div class="media-element file-default media-youtube-video"><iframe src="https://www.redhat.com/en/media/oembed?url=https%3A//www.youtube.com/watch%3Fv%3DH5CDiWqkAto&max_width=0&max_height=0&hash=Teis2J7__3IJzleqvpw6kFMB5rDKNpNTqgYzjgq_FTs" width="200" height="113" class="media-oembed-content" loading="lazy" title="Developers Discuss: DevSecOps"></iframe></div></div></div></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-border=bottom data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="container-security" nav-label="Container security" >Build better security into containers</h2></div></header><div class="rh-generic--component" ><p><a href="/en/topics/security">Nothing is secure by default</a>. Static security policies and checklists don’t scale for containers in the enterprise, so you need to know how to build better security into the container pipeline.</p></div></div><div class="rh-group-footer" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="min-stacked" ><span class="rh-cta--component" data-rh-cta-type="secondary" ><a class="rh-cta-link" href="/en/topics/containers/what-is-docker" target="_self" data-analytics-linkType="cta" data-analytics-text="Learn more about Docker" >Learn more about Docker<span aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><path d="M31.58 18.24a.64.64 0 0 0-.14-.68l-9-9c-.56-.58-1.47.32-.88.88l7.93 7.94H5a.62.62 0 1 0 0 1.24h24.49l-7.93 7.94a.62.62 0 0 0 .88.88l9-9a.72.72 0 0 0 .14-.2Z"/></svg></span></a></span></div></div></div></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-border=bottom data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="container-vs-docker" nav-label="Container vs Docker" >Container vs Docker</h2></div></header><div class="rh-generic--component" ><p>Although sometimes confused, <a href="/en/topics/containers/what-is-docker">Docker</a> is not the same as a traditional Linux container. Docker technology was initially built on top of the <a href="https://linuxcontainers.org/">LXC</a> technology—which most people associate with "traditional" Linux containers—though it’s since moved away from that dependency. LXC was useful as a lightweight <a href="/en/topics/virtualization">virtualization</a>, but it didn’t have a great developer or user experience. The Docker technology brings more than the ability to run containers—it also eases the process of creating and building containers, shipping container images, and versioning of images, among other things.</p><p>Traditional Linux containers use an init system that can manage multiple processes. This means entire applications can run as one. The Docker technology encourages applications to be broken down into their separate processes and provides the tools to do that. This granular approach has its advantages.</p></div></div><div class="rh-group-footer" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="min-stacked" ><span class="rh-cta--component" data-rh-cta-type="secondary" ><a class="rh-cta-link" href="/en/topics/containers/what-is-docker" target="_self" data-analytics-linkType="cta" data-analytics-text="Learn more about Docker" >Learn more about Docker<span aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><path d="M31.58 18.24a.64.64 0 0 0-.14-.68l-9-9c-.56-.58-1.47.32-.88.88l7.93 7.94H5a.62.62 0 1 0 0 1.24h24.49l-7.93 7.94a.62.62 0 0 0 .88.88l9-9a.72.72 0 0 0 .14-.2Z"/></svg></span></a></span></div></div></div></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-border=bottom data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="virtualization-and-containers" nav-label="Virtualization and containers" >Where does virtualization come in?</h2></div></header><div class="rh-generic--component" ><p>Virtualization provisions the resources that containers can use. These <a href="/en/topics/virtualization/what-is-a-virtual-machine">virtual machines (VMs)</a> are environments in which containers can run, but containers aren’t tied to virtual environments. Some software—like <a href="/en/technologies/cloud-computing/openshift/virtualization">Red Hat® OpenShift® Virtualization</a>—can both orchestrate containers and manage virtual machines, but that doesn't mean the 2 technologies are the same.</p><p>VMs have finite capabilities because the hypervisors that create them are tied to the finite resources of a physical machine. Containers, on the other hand, share the same operating system kernel and package applications.</p></div></div><div class="rh-group-footer" ><div class="rh-group--layout" ><div class="rh-group-body" data-rh-layout="min-stacked" ><span class="rh-cta--component" data-rh-cta-type="secondary" ><a class="rh-cta-link" href="/en/topics/virtualization" target="_self" data-analytics-linkType="cta" data-analytics-text="Learn more about virtualization" >Learn more about virtualization<span aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><path d="M31.58 18.24a.64.64 0 0 0-.14-.68l-9-9c-.56-.58-1.47.32-.88.88l7.93 7.94H5a.62.62 0 1 0 0 1.24h24.49l-7.93 7.94a.62.62 0 0 0 .88.88l9-9a.72.72 0 0 0 .14-.2Z"/></svg></span></a></span></div></div></div></div>  <div class="rh-group--layout" data-rh-content-size=xl data-rh-layout="stacked" ><div class="rh-group-body" data-rh-layout="min-stacked" ><header class="rh-standard-header--component" ><div class="rh-standard-header-container"><h2 class="rh-standard-header-headline-medium pfe-jump-links-panel__section" id="why-red-hat" nav-label="Why Red Hat" >Why choose Red Hat?</h2></div></header><div class="rh-generic--component" ><p>Red Hat does a lot of work on container technologies with the greater <a href="/en/about/open-source">open source</a> community. Our engineers help improve features, reliability, and security to make sure your containers perform and remain stable. Red Hat's also the second largest contributor to the <a href="http://www.infoworld.com/article/2925484/application-virtualization/look-whos-helping-build-docker-besides-docker-itself.html">Docker</a> and Kubernetes codebases and works with the <a href="https://www.opencontainers.org/">Open Container Initiative</a> and the <a href="https://cncf.io/">Cloud Native Computing Foundation</a>. As with all open source projects, Red Hat contributes code and improvements back to the upstream codebase—sharing advancements along the way.</p><p>Red Hat’s container-focused solutions and <a href="/en/services/training/do080-deploying-containerized-applications-technical-overview">training offerings</a> give you the infrastructure, platform, control, and knowledge to take advantage of everything containers have to offer.</p><div class="rc-cta-secondary"><a href="/en/topics/containers/why-choose-red-hat-containers">See how Red Hat makes containers easy</a></div><p> </p><p> </p><p> </p><div class="media-element file-default media-youtube-video"><iframe src="https://www.redhat.com/en/media/oembed?url=https%3A//www.youtube.com/watch%3Fv%3D0HjPvbGSdoo&max_width=0&max_height=0&hash=m_TUbQz79yE6w_NFctZ5SKin4xJJTRWpk-ebQ4ue8UU" width="200" height="113" class="media-oembed-content" loading="lazy" title="Why Red Hat containers?"></iframe></div></div></div></div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-quote--component" data-rh-align="left" data-rh-quote-emphasis=red > <blockquote class="rh-quote-container"> <p class="rh-quote-quotation" > <span><svg id="aca2229e-ddc4-4da3-83fa-f47053761475" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="36" height="25.51" viewBox="0 0 36 25.51"><defs><style>.b284a514-74e3-4814-977d-399a0e82e3fa { fill: #e00; }</style></defs><title>Icon-Red_Hat-Media_and_documents-Quotemark_Open-B-Red-RGB</title><path class="b284a514-74e3-4814-977d-399a0e82e3fa" d="M8 9.44H2.44a8.26 8.26 0 0 1 8.16-7.13 1.14 1.14 0 0 0 1.15-1.15A1.15 1.15 0 0 0 10.6 0 10.62 10.62 0 0 0 0 10.6v13.75a1.17 1.17 0 0 0 1.16 1.16h13.76a1.17 1.17 0 0 0 1.15-1.16v-6.81A8.12 8.12 0 0 0 8 9.44zM27.9 9.44h-5.53a8.26 8.26 0 0 1 8.15-7.13 1.16 1.16 0 1 0 0-2.31 10.62 10.62 0 0 0-10.59 10.6v13.75a1.17 1.17 0 0 0 1.15 1.16h13.76A1.17 1.17 0 0 0 36 24.35v-6.81a8.12 8.12 0 0 0-8.1-8.1z"/></svg> </span> Driven by an array of factors—led by improvements in the speed, efficiency, and simplicity of software development—firms across industries are eager to implement Linux containers across the software development life cycle.</p> <footer class="rh-quote-reference"> <div class="rh-quote-attribution" > <p class="rh-quote-attribution-name">Source: The state of containerization: A technology adoption profile conducted by Forrester Consulting and commissioned by Red Hat</p> <p class="rh-quote-attribution-title">JUNE 2016</p> </div> </footer> </blockquote> </div> </div> </div> </pfe-jump-links-panel> </div> </div> </div><footer class="rh-band-footer" data-rh-layout="only8 flex center" >  </footer></section></div> </div>  <div class="rh-band--layout" id="keepReading" data-rh-unique-id="5221401" data-rh-background-align="center-center" data-rh-band-collapse="no-padding-top" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section 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isolate them from the rest of the system.</p> </div> </div> <footer class="rh-card-footer" >  <span class="rh-cta--component" data-rh-align="left" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/topics/containers/containers-vs-vms" title="article | containers vs vms" data-analytics-linkType="cta" aria-describedby="rh-6cwac" >Read more<span aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"> <path d="M31.58 18.24a.64.64 0 0 0-.14-.68l-9-9c-.56-.58-1.47.32-.88.88l7.93 7.94H5a.62.62 0 1 0 0 1.24h24.49l-7.93 7.94a.62.62 0 0 0 .88.88l9-9a.72.72 0 0 0 .14-.2Z"/> </svg> </span></a> </span> </footer> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <header class="rh-standard-header--component" data-rh-align=left > <div class="rh-standard-header-container"> <p 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