Summary

• create persistent PostgreSQL 17, Redis 7, and ClickHouse 25.8 databases through Docker, wait for engine-specific readiness, save a DBcooper connection, and expose a copyable connection string
• discover and link compatible containers from the current Docker context, including recreated Docker Compose services, with credentials detected from standard environment variables and *_FILE secrets
• start, stop, and restart linked containers while preserving containers and data by default on app quit or connection deletion
• keep connection/link writes atomic and Docker commands bounded, with safe identity-based cleanup for containers created by DBcooper
• document supported Docker engines, linking requirements, lifecycle behavior, and explicit data deletion

Testing

• bun run check (34 frontend tests, TypeScript, ESLint, production build)
• bun run build in docs/
• cargo test --lib (25 tests)
• cargo check
• cargo clippy --lib (passes with 32 existing warnings outside the Docker modules)
• rustfmt --check --edition 2021 src/docker/cli.rs src/docker/model.rs
• real clickhouse/clickhouse-server:25.8-alpine verification: authenticated readiness, HTTP query, and named-volume persistence across stop/start
• git diff --check origin/main...HEAD