Files
computer-playbook/plugins
kevinveenbirkenbachandClaude Opus 4.7 0ffbb73d72 refactor(images): central container_image lookup + migrate all roles
Add plugins/lookup/container_image.py: returns the full `image: "<ref>"`
line so templates drop the redundant image: prefix and surrounding
quotes. Supports `custom=True` to auto-construct `<entity_name>_custom`
for locally-built images, plus explicit `image=`/`version=` overrides
for exotic cases (taiga back-auth/front-oidc variants, decidim infinito
suffix, etc.).

* 25 unit tests for the lookup cover compose vs swarm prefix, custom
  flag, overrides, tag_only=True, missing version warnings.
* New strict lint (tests/lint/.../test_no_raw_image_in_compose_templates)
  fails on any raw `image:` line in roles/*/templates/*.j2 unless
  nocheck-suppressed. Legacy `image: "{{ lookup(...) }}"` form no
  longer accepted.
* Migrate 159 image refs across ~80 roles to the standalone
  `{{ lookup('container_image', application_id, '<service_key>') }}`
  form. 26 roles use `custom=True` (mariadb, postgres, openldap,
  jenkins, jira, gitlab, nextcloud, mediawiki, shopware, wordpress,
  odoo, joomla, openproject, bookwyrm, espocrm, hugo, littlejs,
  fediwall, roulette-wheel, openresty, confluence and more).
* Fix svc-db-redis application_id leak: service.yml.j2 is included
  into consuming roles where application_id evaluates to the outer
  role, so the image lookup needs the hardcoded 'svc-db-redis'.
* Integration tests (test_templates_require_image,
  test_build_requires_image) recognise the standalone lookup as an
  implicit `image:` at the same indent.
* Mediawiki swarm tasks: add explicit `:{{ MEDIAWIKI_VERSION }}` to
  the registry-prefixed image string because the custom var is now
  bare.

Only 3 legitimate exotic nocheck-suppressed image lines remain:
matrix-mdad runner (nested services.matrix.runner.image path),
matrix mautrix bridges (per-iteration dynamic) and svc-registry-docker
(chicken-and-egg self-reference).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-16 00:17:11 +02:00
..

Ansible Plugins (plugins/) 🧩

This document is the central reference for plugin types and plugin placement in Infinito.Nexus.

Current Project Layout 🗂️

plugins/
├── action/   # custom action plugins
├── filter/   # custom Jinja2 filters
└── lookup/   # custom lookup plugins

Configured plugin paths in this repository are defined in ansible.cfg:

  • action_plugins = ./plugins/action
  • filter_plugins = ./plugins/filter
  • lookup_plugins = ./plugins/lookup

All Common Ansible Plugin Types 📚

The table below summarizes common Ansible plugin types and their conventional directory names.

Emoji Plugin Type Conventional Directory Purpose
⚙️ action action_plugins/ or plugins/action/ Wrap/extend module execution behavior at task runtime.
🔐 become become_plugins/ Implement privilege escalation methods.
💾 cache cache_plugins/ Persist gathered facts and cached data between runs.
📣 callback callback_plugins/ React to play/task events (logging, reporting, notifications).
🖧 cliconf cliconf_plugins/ Define CLI command transport behavior (mainly network platforms).
🔌 connection connection_plugins/ Control how Ansible connects to targets (ssh, local, etc.).
🔍 filter filter_plugins/ or plugins/filter/ Add Jinja2 filters for data transformation.
🌐 httpapi httpapi_plugins/ API transport layer over HTTP(S), mainly for network devices.
🧭 inventory inventory_plugins/ Build dynamic inventories from APIs, services, or files.
👉 lookup lookup_plugins/ or plugins/lookup/ Resolve dynamic values during playbook processing.
🛰️ netconf netconf_plugins/ NETCONF transport integration for network automation.
🐚 shell shell_plugins/ Adjust shell command wrapping/execution behavior.
🧠 strategy strategy_plugins/ Customize task scheduling/execution strategy.
✅ test test_plugins/ Add Jinja2 tests used in conditions and templates.
📦 vars vars_plugins/ Load variables from custom sources.

Which Plugin Type to Use 🧭

action ⚙️

Use when task execution behavior itself must be changed or wrapped.

Examples:

  • centralized retry logic (uri_retry.py),
  • argument normalization before module dispatch,
  • pre/post task orchestration.

filter 🔍

Use for pure data transformation in Jinja2 expressions.

Examples:

  • mapping/normalizing dictionaries,
  • deriving computed fields for templates,
  • deterministic formatting helpers.

lookup 👉

Use when a value must be dynamically resolved at runtime.

Examples:

  • computing IDs from role metadata,
  • resolving paths/version data,
  • reading structured project data for templates/tasks.

callback 📣

Use to hook into execution events and shape output/reporting.

inventory 🧭

Use when host/group data should come from a dynamic source.

strategy 🧠

Use to alter how tasks are scheduled/executed across hosts.

vars 📦

Use to load variables from custom backends.

connection, become, shell 🔌🔐🐚

Use to customize low-level execution and privilege mechanics.

cache 💾

Use to persist facts/results across runs for performance and consistency.

cliconf, httpapi, netconf 🖧🌐🛰️

Use in network automation contexts requiring protocol-specific transport behavior.

test ✅

Use to add custom Jinja2 test operators for conditional logic.

Best Practices 🧪

  • Keep plugin interfaces explicit and stable.
  • Keep plugin logic focused; move shared logic to utils/.
  • Add unit tests for plugin behavior and integration tests for end-to-end flows.
  • Prefer deterministic outputs and avoid hidden global state.
  • Document any plugin-specific task arguments in the plugin docstring and README.

References 🔗