{"id":2692,"date":"2026-03-25T09:30:00","date_gmt":"2026-03-25T09:30:00","guid":{"rendered":"https:\/\/mugnos-it.com\/?p=2692"},"modified":"2026-03-10T12:29:53","modified_gmt":"2026-03-10T12:29:53","slug":"avoid-deployment-disasters-choose-the-right-strategy","status":"publish","type":"post","link":"https:\/\/mugnos-it.com\/pt\/avoid-deployment-disasters-choose-the-right-strategy\/","title":{"rendered":"Avoid deployment disasters: Choose the right strategy!"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2692\" class=\"elementor elementor-2692\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c0f9cf7 e-flex e-con-boxed e-con e-parent\" data-id=\"2c0f9cf7\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a3a50ae elementor-widget elementor-widget-text-editor\" data-id=\"5a3a50ae\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<p>Hey everyone,<\/p>\n\n\n\n<p>If there\u2019s one thing nobody wants, it\u2019s a <strong>deployment<\/strong> that negatively impacts the business. Choosing the right deployment strategy is not just a technical decision \u2014 it\u2019s a necessity to ensure availability, stability, and user experience.<\/p>\n\n\n\n<p>Every change in your system carries risk. A deployment mistake can cause downtime, impact users, and worse \u2014 generate financial losses. To minimize the <strong>blast radius<\/strong> \u2014 meaning the negative impact of a failure \u2014 it\u2019s essential to have a well-planned deployment strategy that fits your needs.<\/p>\n\n\n\n<p>And of course, <strong>having a robust testing strategy<\/strong> is fundamental. Without proper testing, your deployment strategy will only change how fast you roll out an error into your environment (for example: gradually sending 10% of traffic to a new version without even knowing if it\u2019s behaving as expected\u2026 that\u2019s a bit too much, right?! \u2014 yes, it\u2019s rare\u2026 but it happens a lot \ud83d\udc40).<\/p>\n\n\n\n<p>As new versions are released, it\u2019s crucial to monitor both technical and business metrics (such as golden signals or business KPIs like checkout abandonment rate). That way, if something goes wrong, the deployment can be paused or rolled back quickly.<\/p>\n\n\n\n<p>Alright, let\u2019s explore some deployment strategies and understand how they work:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f <strong>All at Once \/ Big Bang<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0 How does it work?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The new version is deployed to all users at once.<\/li>\n\n\n\n<li>There is no traffic split between versions.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Advantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simple to implement.<\/li>\n\n\n\n<li>Fast, since the new version is released immediately.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u26a0 Disadvantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If something goes wrong, all users are impacted.<\/li>\n\n\n\n<li>Rollback can be difficult and time-consuming.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 Example:<\/h3>\n\n\n\n<p>Imagine an e-commerce platform launching a new checkout feature. If there\u2019s an implementation bug, all users are affected simultaneously, potentially leading to revenue drops.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f <strong>Blue\/Green Deployment<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0 How does it work?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Two versions of the system (Blue and Green) run simultaneously.<\/li>\n\n\n\n<li>Production traffic always points to either Blue <strong>OR<\/strong> Green.<\/li>\n\n\n\n<li>The update is deployed to the version without traffic. Once it\u2019s ready and tested, traffic is switched to the updated version.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Advantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enables immediate rollback by simply redirecting traffic back to the previous version.<\/li>\n\n\n\n<li>Reduces downtime.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u26a0 Disadvantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher operational cost (two environments running simultaneously).<\/li>\n\n\n\n<li>Requires a well-configured load balancer.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 Example:<\/h3>\n\n\n\n<p>If an online bank wants to update its login interface, it can keep the old version active while preparing and validating the new one. Once validated, all users are migrated safely.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f <strong>Canary Deployment (Gradual Deployment)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0 How does it work?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The new version is gradually released to a small percentage of users (e.g., 5 waves of 20%, or 10 waves of 10%).<\/li>\n\n\n\n<li>If everything works well, traffic is progressively increased until 100% adoption.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Advantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Allows production testing with a smaller <strong>blast radius<\/strong>.<\/li>\n\n\n\n<li>Reduced impact in case of failures.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u26a0 Disadvantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Requires strong observability to properly monitor the new version.<\/li>\n\n\n\n<li>Depending on the application design, it may cause inconsistencies since requests are distributed between version N and N-1.<\/li>\n\n\n\n<li>Rollout typically takes longer.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 Example:<\/h3>\n\n\n\n<p>A SaaS company needs to update a critical API. Instead of replacing all instances at once, it starts by deploying to just 5% of servers. If logs and metrics show stability, the rollout gradually expands until it reaches 100%.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f <strong>Shadow Deployment<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0 How does it work?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Every request is duplicated: one goes to production, and another goes to a \u201cshadow\u201d (new version) environment.<\/li>\n\n\n\n<li>The new version receives a copy of real traffic, but responses are not served to end users.<\/li>\n\n\n\n<li>This allows evaluation of the new version\u2019s behavior without impacting production.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Advantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identifies problems before users are affected.<\/li>\n\n\n\n<li>Ideal for testing load and performance under real traffic.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u26a0 Disadvantages:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher cost, since two versions process requests simultaneously.<\/li>\n\n\n\n<li>Difficult to capture all possible scenarios without strong test coverage.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 Example:<\/h3>\n\n\n\n<p>A fintech wants to test a new transaction processing engine. It can run in Shadow Mode to validate readiness before handling real payment processing.<\/p>\n\n\n\n<p><strong>Note:<\/strong> There\u2019s also a variation called <em>shadow traffic<\/em>. It\u2019s basically the same idea, but instead of duplicating 100% of requests, only a sampled percentage is sent to the new version.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd25 Feature Flags \ud83d\udd25<\/h2>\n\n\n\n<p>Feature Flags are not exactly a deployment strategy, but a powerful technique to enable or disable features in real time without requiring a new deployment.<\/p>\n\n\n\n<p>The idea is to deploy a safe version of the code where the new functionality is already present but disabled by default. When the time is right, you activate it remotely \u2014 no new deployment required.<\/p>\n\n\n\n<p>Feature flags are widely used by large companies and critical systems. They require higher operational maturity, but the benefits are huge. You can perform a simple canary strategy and then enable or disable a feature in seconds. That brings many advantages and significantly reduces impact.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 Example:<\/h3>\n\n\n\n<p>Imagine a digital bank launching a new authentication flow. Instead of releasing it to everyone at once, they deploy the new version with the feature behind a flag. They can enable it only for a small group of internal users, collect feedback, fix potential issues, and then gradually expand activation safely and in a controlled manner.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\ude80 Conclusion<\/h2>\n\n\n\n<p>There is no single \u201ccorrect\u201d strategy. The right choice depends on your context, acceptable risk level, and deployment maturity. The key is always to minimize impact and ensure a smooth user experience.<\/p>\n\n\n\n<p>So \u2014 which of these strategies have you used? Do you have a favorite? Let us know!<\/p>\n\n\n\n<p>If you enjoyed this content and want to keep diving deeper into software architecture, resilience, and modern deployment strategies, stay tuned.<\/p>\n\n\n\n<p>More insights are coming soon in the newsletter, on Twitter, and across the channels where I share content regularly.<\/p>\n\n\n\n<p>See you there. \ud83d\ude80<\/p>\n\n\n\n<p><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b4daf35 e-flex e-con-boxed e-con e-parent\" data-id=\"b4daf35\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Hey everyone, If there\u2019s one thing nobody wants, it\u2019s a deployment that negatively impacts the business. Choosing the right deployment strategy is not just a technical decision \u2014 it\u2019s a necessity to ensure availability, stability, and user experience. Every change in your system carries risk. A deployment mistake can cause downtime, impact users, and worse [&hellip;]<\/p>","protected":false},"author":3,"featured_media":2693,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2692","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/mugnos-it.com\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-10-de-mar.-de-2026-09_11_24.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/posts\/2692","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/comments?post=2692"}],"version-history":[{"count":4,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/posts\/2692\/revisions"}],"predecessor-version":[{"id":2697,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/posts\/2692\/revisions\/2697"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/media\/2693"}],"wp:attachment":[{"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/media?parent=2692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/categories?post=2692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mugnos-it.com\/pt\/wp-json\/wp\/v2\/tags?post=2692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}