About This Architecture

Blue/Green WebLogic Active Environment Controller implements a zero-downtime deployment pattern across two isolated EC2 node clusters in a multi-AZ VPC, with a Lambda-based router dynamically switching traffic via Parameter Store configuration. External consumers and cross-account services (Accounts B, C, D) route through an ALB to the Lambda router, which reads the active-env parameter and directs requests to either the Blue or Green WebLogic cluster. This architecture eliminates deployment downtime and enables instant rollback by toggling a single configuration value, critical for mission-critical Java workloads requiring SLA compliance. Fork this diagram on Diagrams.so to customize subnets, instance types, or add cross-account IAM policies for your multi-tenant environment. Consider adding SNS notifications to the Lambda router to alert teams when environment switches occur.

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How do I implement zero-downtime deployments for WebLogic applications across multiple AWS accounts using blue/green switching?

This diagram shows a Lambda-based router reading an active-env parameter from Parameter Store to dynamically switch traffic between isolated Blue and Green WebLogic EC2 clusters across two availability zones. External consumers and cross-account services (Accounts B, C, D) connect through an ALB, enabling instant environment switching and rollback without service interruption.