Cloud and Distributed Systems Patterns

Distributed Java systems need more than classic object patterns. They need failure isolation, migration paths, container boundaries, and deployment models that fit managed platforms.

This section covers resilience patterns, cloud-native hosting choices, and migration techniques so you can decide which responsibilities belong in Java services and which should move into the platform.

In this section

• Bulkhead Pattern in Java
  Isolate pools, queues, or service paths in Java so one failing dependency cannot exhaust the rest of the system.
• Strangler Fig Pattern in Java
  Modernize a Java monolith by routing selected capabilities to new services while keeping migration scope, contracts, and rollback manageable.
• Serverless Architecture Patterns in Java
  Choose Java serverless patterns for event handlers, APIs, and background jobs while accounting for cold starts, state, and platform limits.
• Cloud-Native Application Patterns
  Review Java deployment patterns such as containers, Kubernetes, service meshes, sidecars, ambassadors, and immutable infrastructure, and when each boundary belongs in the platform instead of the app.
  • Twelve-Factor App Principles for Java
    Apply Twelve-Factor ideas to Java services without ignoring JVM startup, configuration, and state-management trade-offs.
  • Containerizing Java Applications with Docker
    Package Java services for repeatable local and production runs while keeping image size, startup time, and JVM settings under control.
  • Kubernetes Orchestration for Java
    Run Java services on Kubernetes with a clearer view of probes, rollout behavior, resource limits, and cluster ownership boundaries.
  • Service Meshes for Java Microservices
    Decide when Istio or Linkerd should own traffic policy, telemetry, and mTLS instead of duplicating that logic inside Java services.
  • Ambassador Pattern in Java Cloud-Native Systems
    Use an ambassador side service when Java applications need a controlled outbound integration boundary for remote calls, policy, or protocol translation.
  • Sidecar Pattern in Java Cloud-Native Applications
    Use a sidecar when networking, telemetry, or policy concerns should be deployed beside a Java service instead of embedded inside it.
  • Immutable Infrastructure for Java Deployments
    Use immutable images and replacement-based deployment flows to reduce drift in Java environments that scale across clusters.