{"id":529,"date":"2025-07-02T17:46:21","date_gmt":"2025-07-02T17:46:21","guid":{"rendered":"https:\/\/sreschool.com\/blog\/?p=529"},"modified":"2025-07-02T17:46:22","modified_gmt":"2025-07-02T17:46:22","slug":"blue-green-deployment-a-complete-beginner-to-advanced-guide","status":"publish","type":"post","link":"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/","title":{"rendered":"Blue-Green Deployment: A Complete Beginner-to-Advanced Guide"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Table of Contents<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#introduction-to-blue-green-deployment\">Introduction to Blue-Green Deployment<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#core-concepts\">Core Concepts<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#benefits-and-drawbacks\">Benefits and Drawbacks<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#step-by-step-implementation-guides\">Step-by-Step Implementation Guides<\/a>\n<ul class=\"wp-block-list\">\n<li>AWS (Elastic Beanstalk \/ ECS \/ ALB)<\/li>\n\n\n\n<li>Kubernetes (Services, Ingress, Istio)<\/li>\n\n\n\n<li>Azure DevOps<\/li>\n\n\n\n<li>Jenkins Pipelines<\/li>\n\n\n\n<li>Terraform \/ Helm \/ Ansible<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#sample-code-snippets--yamls\">Sample Code Snippets &amp; YAMLs<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#architecture-diagrams\">Architecture Diagrams<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#real-world-use-cases--scenarios\">Real-World Use Cases &amp; Scenarios<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#testing--verification\">Testing &amp; Verification<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#risks-and-mitigation\">Risks and Mitigation<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#best-practices-and-patterns\">Best Practices and Patterns<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#sample-project-repository\">Sample Project Repository<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#glossary\">Glossary<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#faqs\">FAQs<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/chatgpt.com\/c\/68656e0f-efc4-8010-b4d1-d79ca7c7e0d0#quizzes\">Quizzes<\/a><\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Introduction to Blue-Green Deployment<\/h2>\n\n\n\n<p><strong>Definition<\/strong>: Blue-Green Deployment is a release management strategy that minimizes downtime and risk by maintaining two identical environments: one (Blue) for the current live version, and the other (Green) for the new version.<\/p>\n\n\n\n<p><strong>Purpose<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To provide zero-downtime deployments<\/li>\n\n\n\n<li>Enable safe rollbacks<\/li>\n<\/ul>\n\n\n\n<p><strong>How it Works<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Deploy new version to the <strong>Green<\/strong> environment<\/li>\n\n\n\n<li>Run tests<\/li>\n\n\n\n<li>Switch traffic from <strong>Blue<\/strong> to <strong>Green<\/strong> via a load balancer or DNS change<\/li>\n<\/ul>\n\n\n\n<p><strong>Comparison with Other Strategies<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Strategy<\/th><th>Downtime<\/th><th>Rollback<\/th><th>Complexity<\/th><th>Use Case<\/th><\/tr><\/thead><tbody><tr><td>Blue-Green<\/td><td>None<\/td><td>Easy<\/td><td>Medium<\/td><td>Full app upgrade<\/td><\/tr><tr><td>Canary<\/td><td>Low<\/td><td>Controlled<\/td><td>High<\/td><td>Gradual rollout<\/td><\/tr><tr><td>Rolling Update<\/td><td>Low<\/td><td>Medium<\/td><td>Low<\/td><td>Stateless microservices<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Core Concepts<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd39 Active\/Passive Environment<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Only one environment is live at a time (active).<\/li>\n\n\n\n<li>The passive environment is used for deployment and testing.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd04 Traffic Switching<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DNS-based (e.g., Route53)<\/li>\n\n\n\n<li>Load Balancer (e.g., AWS ALB, NGINX)<\/li>\n\n\n\n<li>API Gateway (e.g., Istio VirtualService)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddef Rollback and Failover Strategy<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If an issue occurs, simply reroute traffic back to the previous (Blue) environment.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Benefits and Drawbacks<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Benefits<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Zero Downtime<\/strong><\/li>\n\n\n\n<li><strong>Instant Rollbacks<\/strong><\/li>\n\n\n\n<li><strong>Improved Testing Before Production<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c Drawbacks<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Duplicate Infrastructure Cost<\/strong><\/li>\n\n\n\n<li><strong>Environment Drift<\/strong> (Blue and Green can go out of sync)<\/li>\n\n\n\n<li><strong>Complex Load Balancer Configurations<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Step-by-Step Implementation Guides<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd38 AWS (Elastic Beanstalk \/ ECS \/ ALB)<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Create two environments in Elastic Beanstalk (Blue &amp; Green)<\/li>\n\n\n\n<li>Deploy new version to Green<\/li>\n\n\n\n<li>Use ALB listener rules or Route53 switch to route traffic to Green<\/li>\n\n\n\n<li>Validate and delete or keep Blue<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd38 Kubernetes (Services, Ingress, Istio)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Service\nmetadata:\n  name: app-service\nspec:\n  selector:\n    version: green\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use labels (version: blue\/green)<\/li>\n\n\n\n<li>Switch service selector or use Istio\u2019s traffic splitting<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd38 Azure DevOps<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Create release pipelines for Blue and Green stages<\/li>\n\n\n\n<li>Use Azure Traffic Manager or App Gateway to switch endpoints<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd38 Jenkins Pipelines<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>deployBlueGreen(env) {\n    stage(\"Deploy to Green\") { ... }\n    stage(\"Switch Traffic\") { ... }\n    stage(\"Verify\") { ... }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd38 Terraform \/ Helm \/ Ansible<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use <code>terraform apply<\/code> with separate environment variables<\/li>\n\n\n\n<li>Helm upgrade with <code>--set image.tag=green<\/code><\/li>\n\n\n\n<li>Ansible playbooks to switch routing configurations<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Sample Code Snippets &amp; YAMLs<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kubernetes Deployment<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: myapp-green\nspec:\n  replicas: 3\n  selector:\n    matchLabels:\n      app: myapp\n      version: green\n  template:\n    metadata:\n      labels:\n        app: myapp\n        version: green\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">NGINX Load Balancer<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>upstream myapp {\n  server blue.example.com;\n  # server green.example.com; # uncomment to switch\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Architecture Diagrams<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Blue-Green Flow<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;Developer] \u2192 &#91;CI\/CD Pipeline] \u2192 &#91;Green Env]\n                                 \u2193\n                        &#91;Load Balancer]\n                            \u2193     \u2191\n                        &#91;Blue]   &#91;Green]\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">DNS-Based Switch<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;User] \u2192 &#91;DNS (Route53)] \u2192 &#91;Blue | Green IP]\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Multi-Region<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;Global Traffic Manager]\n     \u2193            \u2193\n&#91;Region A]     &#91;Region B]\n  Blue\/Green    Blue\/Green\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Real-World Use Cases &amp; Scenarios<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Application Upgrade<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Deploy new version in Green<\/li>\n\n\n\n<li>Test \u2192 Switch \u2192 Remove Blue<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">A\/B Testing<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Blue and Green host different versions\/features<\/li>\n\n\n\n<li>Route % traffic accordingly<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Disaster Recovery<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Blue and Green can exist in different regions for DR<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Testing &amp; Verification<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Smoke Testing<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Perform API checks, database health checks before traffic switch<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Monitoring &amp; Logging<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use tools like Prometheus, Datadog, CloudWatch<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Health Checks<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Define in load balancer or Kubernetes liveness\/readiness probes<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Risks and Mitigation<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Traffic Leakage<\/h3>\n\n\n\n<p><strong>Mitigation<\/strong>: Strict routing rules; kill old service completely<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Configuration Drift<\/h3>\n\n\n\n<p><strong>Mitigation<\/strong>: Use Infrastructure-as-Code<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Deployment Lag<\/h3>\n\n\n\n<p><strong>Mitigation<\/strong>: Synchronize pipelines; validate artifact versions<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Best Practices and Patterns<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use <strong>Feature Toggles<\/strong> for testing in production<\/li>\n\n\n\n<li>Implement <strong>GitOps<\/strong> for declarative rollouts<\/li>\n\n\n\n<li>Set up <strong>Auto Rollback<\/strong> on failed health checks<\/li>\n\n\n\n<li>Always keep <strong>Monitoring and Alerts<\/strong> enabled<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Sample Project Repository<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GitHub (Mock): <a href=\"https:\/\/github.com\/example\/blue-green-k8s\">Blue-Green K8s Sample<\/a><\/li>\n\n\n\n<li>GitHub (Mock): <a href=\"https:\/\/github.com\/example\/aws-alb-switch\">AWS ALB Switcher Script<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Glossary<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Blue Environment<\/strong>: Currently live environment<\/li>\n\n\n\n<li><strong>Green Environment<\/strong>: Staging\/testing environment<\/li>\n\n\n\n<li><strong>DNS Switching<\/strong>: Changing DNS records to reroute traffic<\/li>\n\n\n\n<li><strong>GitOps<\/strong>: Using Git as the single source of truth for deployments<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">FAQs<\/h2>\n\n\n\n<p><strong>Q1. Can I implement blue-green on monoliths?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Yes, but it\u2019s more cost-intensive.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>Q2. Do I need Kubernetes for blue-green?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>No. Any infra supporting routing rules can be used.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>Q3. Is blue-green better than canary?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Depends on the risk tolerance and system complexity.<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Quizzes<\/h2>\n\n\n\n<p><strong>1. Which environment receives traffic during deployment?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Green<\/li>\n\n\n\n<li>Blue<\/li>\n<\/ul>\n\n\n\n<p><strong>2. What\u2019s a major benefit of Blue-Green?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zero downtime<\/li>\n\n\n\n<li>Faster rollbacks<\/li>\n<\/ul>\n\n\n\n<p><strong>3. Which tool is not used for traffic routing?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NGINX<\/li>\n\n\n\n<li>Istio<\/li>\n\n\n\n<li>Redis<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><em>End of Guide \u2013 Happy Deploying!<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Table of Contents Introduction to Blue-Green Deployment Definition: Blue-Green Deployment is a release management strategy that minimizes downtime and risk [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-529","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Blue-Green Deployment: A Complete Beginner-to-Advanced Guide - SRE School<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Blue-Green Deployment: A Complete Beginner-to-Advanced Guide - SRE School\" \/>\n<meta property=\"og:description\" content=\"Table of Contents Introduction to Blue-Green Deployment Definition: Blue-Green Deployment is a release management strategy that minimizes downtime and risk [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"SRE School\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-02T17:46:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-02T17:46:22+00:00\" \/>\n<meta name=\"author\" content=\"Rajesh Kumar\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rajesh Kumar\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/\",\"url\":\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/\",\"name\":\"Blue-Green Deployment: A Complete Beginner-to-Advanced Guide - SRE School\",\"isPartOf\":{\"@id\":\"https:\/\/sreschool.com\/blog\/#website\"},\"datePublished\":\"2025-07-02T17:46:21+00:00\",\"dateModified\":\"2025-07-02T17:46:22+00:00\",\"author\":{\"@id\":\"https:\/\/sreschool.com\/blog\/#\/schema\/person\/0ffe446f77bb2589992dbe3a7f417201\"},\"breadcrumb\":{\"@id\":\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/#breadcrumb\"},\"inLanguage\":\"en\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sreschool.com\/blog\/blue-green-deployment-a-complete-beginner-to-advanced-guide\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sreschool.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Blue-Green Deployment: A Complete Beginner-to-Advanced Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sreschool.com\/blog\/#website\",\"url\":\"https:\/\/sreschool.com\/blog\/\",\"name\":\"SRESchool\",\"description\":\"Master SRE. 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