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kevinveenbirkenbachandClaude Opus 4.7
300ea0a054
Generalises the postgres image build to be driven by a declarative extension→library registry instead of a hardcoded POSTGRES_VECTOR_ENABLED flag. Same Dockerfile.j2 now serves both the central svc-db-postgres image (libraries aggregated across all deployed consumers) and per- consumer images for shared:false postgres consumers whose extensions need libraries not in the postgis/postgis base (e.g. pgvector). postgres.yml.j2 switches between image: and build: based on whether custom libraries are needed. New postgres_libraries lookup filters base-image extensions out and returns recipes for the rest. Dedicated task path extracted into dedicated.yml + dedicated_postgres.yml so the block-with-when size limit stays satisfied and the postgres-type check happens once. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
"""Resolve postgres-extension library install recipes.
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Usage:
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{{ lookup('postgres_libraries', ['vector', 'bloom']) }}
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Takes a list of extension names and returns the subset that needs a
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custom library install on top of the postgis/postgis base image
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(bloom, postgis, pg_trgm, unaccent are already in the base — those are
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filtered out). Each returned entry is a dict with:
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- extension: the extension name (matches the SQL identifier)
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- name: the library/source name (used in the Dockerfile context)
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- git_source: the upstream git repository to clone and build from
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"""
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from __future__ import annotations
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from typing import TYPE_CHECKING, Any
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from ansible.errors import AnsibleError
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from ansible.plugins.lookup import LookupBase
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if TYPE_CHECKING:
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from collections.abc import Sequence
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_REGISTRY: dict[str, dict[str, str]] = {
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"vector": {
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"name": "pgvector",
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"git_source": "https://github.com/pgvector/pgvector.git",
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},
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}
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class LookupModule(LookupBase):
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def run(
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self,
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terms: Sequence[Any] | None,
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variables: dict[str, Any] | None = None,
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**kwargs: Any,
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) -> list[Any]:
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terms = list(terms or [])
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if len(terms) != 1:
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raise AnsibleError(
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"postgres_libraries: expected exactly one term — a list "
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"of extension names."
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)
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extensions = terms[0]
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if not isinstance(extensions, (list, tuple)):
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raise AnsibleError(
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"postgres_libraries: first term must be a list of extension names."
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)
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recipes: list[dict[str, str]] = []
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seen: set[str] = set()
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for ext in extensions:
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ext_name = str(ext).strip()
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if not ext_name or ext_name in seen:
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continue
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seen.add(ext_name)
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recipe = _REGISTRY.get(ext_name)
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if recipe is not None:
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recipes.append({"extension": ext_name, **recipe})
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return [recipes]
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