Files
computer-playbook/plugins
kevinveenbirkenbachandClaude Opus 5 747aff6b45 fix(docs): let docutils read these class docstrings
The same failure class as 3dee332350, in the places that only became
visible once the louder messages were gone. Nine of them are class
docstrings, which the detector used to find the first round skipped
because it walked modules and functions only.

restart_condition carried a section title inside its docstring, where
docutils allows none, and the indented block below it held a second.

cert_utils indented the closing brace of its example shallower than the
body it closes.

Two are regressions of my own first round: filters lacked the blank line
between its new literal block and the paragraph after it, and
fediwall_active had the wrong one of its two colons corrected.

make i18n-extract domain=docs now finishes with zero warnings under -W.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-25 19:31:02 +02:00
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Ansible Plugins (plugins/) 🧩

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

Not to be confused with application addons. This plugins/ directory holds Ansible plugins (action / filter / lookup) that extend the automation engine itself. Some applications also call their own extensions "plugins" (e.g. Nextcloud, WordPress). Those application-level extensions, whatever the app calls them natively, are declared through the unified meta/addons/ contract, documented in Unified Addons. An app "plugin" is an addon; an Ansible plugin lives here.

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 🔗