67 lines
2.4 KiB
Markdown
67 lines
2.4 KiB
Markdown
---
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title: Service Architecture Patterns
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description: Common service architecture patterns for self-hosted platforms and small engineering environments
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tags:
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- architecture
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- services
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- infrastructure
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category: infrastructure
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created: 2026-03-14
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updated: 2026-03-14
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---
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# Service Architecture Patterns
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## Summary
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Service architecture patterns describe how applications are packaged, connected, exposed, and operated. In self-hosted environments, the most useful patterns balance simplicity, isolation, and operability rather than chasing scale for its own sake.
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## Why it matters
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Architecture decisions affect deployment complexity, failure domains, recovery steps, and long-term maintenance. Small environments benefit from choosing patterns that remain understandable without full-time platform engineering overhead.
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## Core concepts
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- Single-service deployment: one service per VM or container stack
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- Shared platform services: DNS, reverse proxy, monitoring, identity, backups
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- Stateful versus stateless workloads
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- Explicit ingress, persistence, and dependency boundaries
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- Loose coupling through DNS, reverse proxies, and documented interfaces
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## Practical usage
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Useful patterns for self-hosted systems include:
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- Reverse proxy plus multiple backend services
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- Dedicated database service with application separation
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- Utility VMs or containers for platform services
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- Private admin interfaces with public application ingress kept separate
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Example dependency view:
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```text
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Client -> Reverse proxy -> Application -> Database
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-> Identity provider
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-> Monitoring and logs
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```
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## Best practices
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- Keep stateful services isolated and clearly backed up
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- Make ingress paths and dependencies easy to trace
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- Reuse shared platform services where they reduce duplication
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- Prefer a small number of well-understood patterns across the environment
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## Pitfalls
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- Putting every service into one giant stack with unclear boundaries
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- Mixing public ingress and administrative paths without review
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- Scaling architecture complexity before operational need exists
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- Depending on undocumented local assumptions between services
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## References
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- [Martin Fowler: MonolithFirst](https://martinfowler.com/bliki/MonolithFirst.html)
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- [The Twelve-Factor App](https://12factor.net/)
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- [NGINX: Reverse Proxy](https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/)
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