daylily-tapdb 3.0.5

Templated Abstract Polymorphic Database - A flexible object model library

daylily-tapdb

daylily-tapdb is the shared persistence layer used by Bloom, Atlas, Dewey, and Ursa.

It provides:

• a template-driven polymorphic object model
• TapDB-managed database/bootstrap workflows
• lineage and audit primitives
• Meridian EUID-backed public identifiers
• a Typer-based operational CLI
• an optional FastAPI admin UI package

Repository Role

Use this repo when you need to:

• bootstrap or reset a TapDB-backed environment
• work with core template and instance models
• embed or run the TapDB admin UI
• validate namespace config, schema, data seeding, or Aurora support

Primary Python package: daylily_tapdb

Ownership Boundary

TapDB owns all canonical template-pack behavior:

• the core template-pack schema
• JSON validation
• duplicate/reference checks
• template writes into generic_template
• runtime guards that block direct client-side template mutation

Client repos own their JSON packs under config/tapdb_templates/, but they do not own template mutation logic.

Main CLI Surface

Entry command: tapdb

Primary groups:

• tapdb bootstrap: one-command local or Aurora bootstrap
• tapdb ui: admin UI start, stop, status, logs, mkcert
• tapdb config: namespace config initialization and migration helpers
• tapdb db: database, schema, data, and config validation commands
• tapdb pg: local PostgreSQL service commands
• tapdb user: TapDB admin/auth user management
• tapdb cognito: Cognito/daycog integration helpers
• tapdb aurora: Aurora cluster management when installed with .[aurora]

Data Model

The core operational tables are:

• generic_template
• generic_instance
• generic_instance_lineage
• audit_log
• outbox_event

TapDB uses uid for internal joins and EUIDs for public-facing identity.

tenant_id is the logical isolation key on templates, instances, lineage, audit, and outbox rows.

Installation

Default install:

pip install daylily-tapdb

Common dev install:

python -m venv .venv
source .venv/bin/activate
pip install -U pip
pip install -e ".[admin,dev,cli]"

Optional convenience wrapper:

source ./activate

Release Versioning

Package versions are derived from Git tags via setuptools_scm.

• An exact tagged commit builds the exact release version.
• Commits after the latest tag build the next inferred version with a .devN suffix, where N is the commit count since that tag.
• Local version metadata is disabled, so builds do not append Git hashes to the published version string.

Examples:

• git describe = 0.2.5 -> build version 0.2.5
• git describe = 0.2.5-2-g1774465 -> build version 0.2.6.dev2

For release artifacts, run git describe --tags --dirty --always before python -m build and build from the exact release tag. If HEAD includes additional commits that should be released, create a new tag on that commit first.

Quick Start

Initialize a strict namespace and bootstrap a local stack:

export TAPDB_CLIENT_ID=tapdb
export TAPDB_DATABASE_NAME=tapdb
export TAPDB_ENV=dev

tapdb config init --client-id "$TAPDB_CLIENT_ID" --database-name "$TAPDB_DATABASE_NAME" --env dev --db-port dev=5533 --ui-port dev=8911
tapdb bootstrap local

JSON-Only Template Packs

TapDB core templates ship from the packaged daylily_tapdb/core_config directory. That packaged path is the only canonical TapDB core pack.

Service/client repos should place their app-owned packs under config/tapdb_templates/ and load them through TapDB:

tapdb db config validate --config ./config/tapdb_templates --strict
tapdb --client-id atlas --database-name lsmc-atlas db data seed dev --config ./config/tapdb_templates

Direct generic_template creation or mutation from client code is not a supported path. If runtime code needs a template, it should require an already seeded template rather than defining one in Python.

For local PostgreSQL, TAPDB now uses a namespaced user-writable Unix socket directory under ~/.config/tapdb/<client>/<database>/<env>/postgres/run by default, so tapdb pg start-local <env> does not depend on system paths such as /var/run/postgresql. You can override that path with environments.<env>.unix_socket_dir or TAPDB_<ENV>_UNIX_SOCKET_DIR when you need a custom local runtime location.

Admin UI

The admin UI is optional and ships with the admin extra.

Key modes:

• native TapDB auth
• shared host-app auth
• auth-disabled local development

See the embedding guide for the current supported patterns.

Timezone Policy

• persisted timestamps are UTC
• user display timezone preference lives in TapDB-backed system_user preferences
• canonical preference key: display_timezone

Current Docs

• Docs index
• GUI inclusion guide

Historical execution plans and breaking-change notes remain in docs/ for background only.