25918bf028
Hard rule: any service with a FQDN, multiple consumers, or concurrent access MUST use PostgreSQL from day one. Documents the cost of "we'll migrate later" based on the Gitea SQLite→PostgreSQL migration that cost nearly a full day of productivity. Extracted from cluster-bootstrap gitea-scaling session (2026-03-28). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
32 lines
3.4 KiB
Markdown
32 lines
3.4 KiB
Markdown
> **Note:** Best practices are now maintained in [skynet/best-practices](https://gitea.oreillyit.nz/skynet/best-practices).
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> AI agents with /best-practices mounted should read /best-practices/INDEX.md instead.
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> The content below is kept as a local copy for context-load compatibility.
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# Best Practices Index
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Generalised best practices extracted from real project work. Each topic file is self-contained — read only the files relevant to the current project.
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## Topics
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- [Validation & Deployment](best-practices/validation.md) — Validate locally, deploy once; full-chain testing; pre-flight checks
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- [Security Architecture](best-practices/security-architecture.md) — Server boundary rule: no credential crosses to the client; proxy + identity mapping pattern; defense in depth; anti-patterns
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- [Secrets Management](best-practices/secrets-management.md) — SOPS + age, credential handling, file naming, encryption gotchas
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- [Git & Source Control](best-practices/git-source-control.md) — Commit practices, GitOps workflows, remote conventions
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- [Kubernetes Patterns](best-practices/kubernetes.md) — Volume mounts, deployment strategies, naming, bootstrap ordering
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- [Helm Charts](best-practices/helm.md) — Schema validation, version verification, values structure
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- [Ansible](best-practices/ansible.md) — Inventory, templates, idempotency, credential safety
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- [Scripting](best-practices/scripting.md) — Shell conventions, verification scripts, idempotency, colour output
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- [Documentation Standards](best-practices/documentation.md) — CLAUDE.md, MEMORY.md, FUTURE.md, README.md structure and tiered memory
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- [Milestones & Reflections](best-practices/milestones.md) — Milestone workflow, verification, reflection process
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- [Debugging Methodology](best-practices/debugging.md) — Systematic diagnosis, full-chain testing, common pitfalls
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- [Claude Code Skills](best-practices/skills-development.md) — Skill authoring, context injection, tool restrictions
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- [Linting & Formatting](best-practices/linting.md) — Tool choices per language, PostToolUse hook, pre-commit integration, formatter contract
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- [Spec-Driven Development](best-practices/spec-driven-development.md) — Spec structure, requirement numbering, test-first workflow, context tiers, anti-patterns
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- [Test-Driven Development](best-practices/test-driven-development.md) — Edge case discovery, property-based testing, mutation testing, AI agent testing patterns, test architecture
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- [Networking & Infrastructure](best-practices/networking.md) — nftables safety, systemd socket activation, Docker forwarding, TLS SNI vs Host header, wildcard certs
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- [Docker UID Matching](best-practices/docker-uid-matching.md) — UID wrapper entrypoint for mounted volumes, gosu pattern, when to use vs K8s securityContext
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- [Database Selection](best-practices/database-selection.md) — SQLite is not a production database; always use PostgreSQL for services with FQDNs, multiple consumers, or concurrent access
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- [Docker](best-practices/docker.md) — gosu PID 1, GIT_SSH_COMMAND scope, slim image health checks, buildx local images, default users, TTY flags, UID resolution
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- [Octopus Process Templates](best-practices/octopus-process-templates.md) — OCL syntax, step template references, channel scoping, parameters, versioning, Platform Hub patterns
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- [Platform Hub Knowledge Base](PLATFORMHUB.md) — Comprehensive guide: architecture, OCL syntax, template patterns, gotchas, API reference
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