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Replaced Alpine-based scratch image with Google Distroless (Debian 13 Trixie) for improved security posture and reduced attack surface. Implemented comprehensive multi-architecture build support (linux/amd64, linux/arm64) with cross-compilation via Docker buildx. Key Security Enhancements: - Non-root user execution (UID 65532) - BREAKING CHANGE from v0.9.0 root user - SHA256 digest pinning for immutable base image (prevents supply chain attacks) - Read-only filesystem support with static binary (no runtime dependencies) - No shell, package manager, or system utilities (minimal attack surface) - Comprehensive OCI labels for SBOM generation and security scanning Build System Improvements: - Build-time version injection via ldflags (VERSION, BUILD_DATE, COMMIT_SHA) - Multi-stage build with dependency layer caching optimization - BUILDPLATFORM/TARGETPLATFORM support for native cross-compilation - Explicit CGO_ENABLED=0 for fully static binary Documentation Additions: - Inline Dockerfile comments explaining each stage and security decision - Health check documentation (HTTP probes vs HEALTHCHECK limitations) - Runtime security notes for production deployments - Usage examples for different commands (server, migrate, create-kek) Breaking Change: Volume permissions may require adjustment when upgrading from v0.9.0 due to non-root user switch. See docs/operations/troubleshooting/volume-permissions.md for migration guide.
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Replaced Alpine-based scratch image with Google Distroless (Debian 13 Trixie) for improved security posture and reduced attack surface. Implemented comprehensive multi-architecture build support (linux/amd64, linux/arm64) with cross-compilation via Docker buildx.
Key Security Enhancements:
Build System Improvements:
Documentation Additions:
Breaking Change: Volume permissions may require adjustment when upgrading from v0.9.0 due to non-root user switch. See docs/operations/troubleshooting/volume-permissions.md for migration guide.