Understanding microservices

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microservices </li></ul>  <div class="rh-band-header--component" ><h1 class="rh-band-header-hero-headline" >Understanding microservices</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 March 9, 2018 </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>The traditional approach to building applications has focused on the monolith–having all deployable parts of the app contained within that single app. This has its downsides: the larger the app, the harder it is to quickly address new problems and add new features. A microservice-based approach to building apps helps solve these issues and boost development and response.</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" height="270" width="430" 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-f7v6i">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" 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="5237031" 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="what-are-microservices" nav-label="What are microservices?" >What are microservices?</h2></div></header><div class="rh-generic--component" ><p>Microservices are both an architecture and an approach to writing software. With microservices, applications are broken down into their smallest components, independent from each other. Instead of a traditional, monolithic, approach to apps, where everything is built into a single piece, microservices are all separated and work together to accomplish the same tasks. Each of these components, or processes, is a microservice. This approach to software development values granularity, being lightweight, and the ability to <a href="/en/topics/integration">share similar process across multiple apps</a>. It is a major component of <a href="/en/topics/cloud-native-apps">optimizing application development towards a cloud-native model</a>.</p><p>But the bigger question here is why you'd want to use a microservice-based infrastructure. The goal is, simply put, to deliver quality software, faster. Using microservices is a means to that end, but there are other considerations too. Breaking your apps into microservices isn’t enough, you've got to manage them, orchestrate them, and deal with the data they create and modify.</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/microservices/what-are-microservices" title="What are microservices?" data-analytics-linkType="cta" >Learn more about microservices<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></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" ><div class="rh-generic--component" ><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%3Djsg1_RM8pmw&max_width=0&max_height=0&hash=bDcnYVZnVxiaiClHQWcCoBvvSGdMTNV_mixL62j_3FM" frameborder="0" allowtransparency width="200" height="113" class="media-oembed-content" loading="lazy" title="Open Answers: What are microservices?"></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="what-can-you-do-with-microservices" nav-label="What can you do with microservices?" >What can you do with microservices?</h2></div></header><div class="rh-generic--component" ><p>Compared to monolithic apps, microservices are easier to build, test, deploy, and update. <a href="/en/topics/cloud-native-apps/why-choose-red-hat-cloud-native">Red Hat believes it is the answer to the question: how can my business react faster to new demands</a>, rather than being stuck in the multiyear "death march" of traditional software development? Now, different parts of your development team can work concurrently on your products, in an <a href="/en/topics/devops/what-is-agile-methodology">agile manner</a>, and deliver value to your customers immediately.</p><p>Learn the basics behind microservices, the pros and cons of using them, and check out our <a href="/en/services/training/do092-developing-cloud-native-applications-microservices-architectures">on-demand training</a> to learn about building a microservices-based architecture.</p></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" ><div class="rh-generic--component" ><div class="media-youtube-video"><iframe src="https://www.redhat.com/en/media/oembed?url=https%3A//www.youtube.com/watch%3Fv%3Dhy9aVrTNufQ&max_width=0&max_height=0&hash=emox5Qn_vvY5likAV7BrJ69xqiR4-yzAOFe021fBcb0" frameborder="0" allowtransparency width="200" height="113" class="media-oembed-content" loading="lazy" title="DevNation 2015 - Steven Pousty, Grant Shipley - Microservices & you: Practical introduction"></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="does-this-relate-to-linux-containers" nav-label="Does this relate to Linux containers?" >Does this have anything to do with Linux containers?</h2></div></header><div class="rh-generic--component" ><p><a href="/en/topics/containers">Linux containers</a> give your microservice-based apps an ideal application deployment unit and self-contained execution environment. With microservices in containers, it’s easier to take advantage of hardware and <a href="/en/topics/containers/what-is-container-orchestration">easily orchestrate services,</a> including <a href="/en/topics/data-storage">storage</a>, networking, and security.</p><p dir="ltr"><span id="docs-internal-guid-7cd6addc-7fff-d0d9-5165-5c5367745b3d">It’s why the </span><a href="https://www.cncf.io/about/charter/">Cloud Native Computing Foundation</a> says microservices and containers together are the foundation for <a href="/en/resources/path-to-cloud-native-applications-ebook">cloud-native application development</a>. This model enables faster development and makes it easier to transform and optimize existing applications—and it starts with microservices in containers.</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/technologies/cloud-computing/openshift/try-it" title="Try Red Hat OpenShift" data-analytics-linkType="cta" >Start using Linux containers for free<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></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="how-does-app-integration-change" nav-label="How does app integration change?" >How does app integration change with microservices?</h2></div></header><div class="rh-generic--component" ><p>In order for a microservices architecture to work as a functional <a href="/en/topics/cloud-native-apps/what-are-cloud-applications">cloud application</a>, services must constantly request data from each other through messaging. Building a <a href="/en/about/videos/summit-2018-whats-service-mesh">service mesh</a> layer into an application simplifies interservice communication, but a microservices architecture may also need to integrate with your legacy applications and other data sources.</p><p>If your architecture is distributed, but your <a href="/en/topics/integration">integration</a> still relies on a centralized team managing a centralized technology like an enterprise service bus (ESB), the business goals of microservices can be negated.</p><p><a href="/en/topics/integration/why-choose-red-hat-integration">Agile integration</a> is an approach to connecting your resources that combines integration technologies, agile delivery techniques, and <a href="/en/topics/cloud-native-apps">cloud-native</a> platforms to improve the speed and security of software delivery.</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/integration/why-choose-red-hat-integration" data-analytics-linkType="cta" >Why choose Red Hat for agile integration?<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></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" ><div class="rh-generic--component" ><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%3DHikxvGXkNWo&max_width=0&max_height=0&hash=v6t-JGy2HS2SCm1pOskP0u9XgdtkUT91EONm3UaExaM" frameborder="0" allowtransparency width="200" height="113" class="media-oembed-content" loading="lazy" title="What is agile integration?"></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="why-rednbsphat" nav-label="Why Red&nbsp;Hat?" >Why Red Hat for microservices?</h2></div></header><div class="rh-generic--component" ><p>Red Hat doesn’t just help you break your monolithic apps into microservices, we help you manage these microservices, orchestrate them, and handle the data they create and modify. We support the continuous development and deployment of microservices, while helping you integrate and manage microservices. The result is a microservices solution that supports the end-to-end deployment of code, and encourages communication and collaboration between delivery teams. There’s no need to totally overhaul your existing systems to get meaningful benefits. Through open source, open standards, and years of experience, we can help you find a solution that fits your organization.</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/microservices/why-choose-red-hat-microservices" title="Why choose Red Hat for microservices?" data-analytics-linkType="cta" >Read more<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 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