# Ansible Role: Audita

Installs and configures [Audita](https://gitea.maximumdirect.net/eric/audita)
from source on Ubuntu 26.04 (`x86_64` or `aarch64`). The role requires gathered
facts and uses privilege escalation on tasks that install dependencies or
manage root-owned application state.

## Variables

```yaml
audita_version: v0.9.1
audita_repository_url: https://gitea.maximumdirect.net/eric/audita.git
audita_source_dir: /usr/local/src/audita
audita_binary_path: /usr/local/bin/audita
audita_manage_build_dependencies: true
audita_go_snap_channel: 1.26/stable
audita_go_binary: /snap/bin/go
audita_config_path: /usr/local/etc/audita/config.yml
audita_config_owner: root
audita_config_group: root
audita_config_directory_mode: "0755"
audita_config_file_mode: "0644"
audita_config_version: 1
audita_pipeline_modules: null
audita_output_schema: null
audita_llm_proposal_base_url: null
audita_llm_proposal_model: null
audita_llm_proposal_api_key_env: null
audita_llm_proposal_timeout: null
audita_llm_proposal_max_retries: null
audita_llm_validation_base_url: null
audita_llm_validation_model: null
audita_llm_validation_api_key_env: null
audita_llm_validation_timeout: null
audita_llm_validation_max_retries: null
audita_concurrency_total_llm: null
audita_concurrency_proposal_llm: null
audita_concurrency_validation_llm: null
audita_chunking_target_sections: null
audita_chunking_max_section_tokens: null
audita_chunking_min_section_tokens: null
audita_normalization_max_segment_gap: null
audita_normalization_ellipsis_gap: null
audita_normalization_max_segment_duration: null
audita_normalization_max_segment_tokens: null
audita_thresholds_glossary: null
audita_thresholds_homophones: null
audita_thresholds_spoken_word: null
audita_thresholds_grammar: null
audita_context_description: null
audita_diagnostics_work_dir: null
audita_diagnostics_retention: null
```

When `audita_manage_build_dependencies` is `false`, Git and the executable
selected by `audita_go_binary` must already be available. Otherwise, the role
installs Git with APT and the classic Go Snap from `audita_go_snap_channel`.

The checkout is authoritative: local source changes are discarded while
selecting `audita_version`. The role builds Audita directly to
`audita_binary_path` using `audita_go_binary`, `CGO_ENABLED=0`, `GOWORK=off`,
`GOTOOLCHAIN=local`, `-trimpath`, and release linker metadata. It rebuilds when
the checkout changes or the binary is absent. The source tree is recursively
owned by `root:root`; the binary is `root:root` mode `0755`.

The configuration variables map directly to Audita's versioned YAML fields.
Every optional variable defaults to `null`; null values and their empty parent
sections are omitted, allowing Audita to retain ownership of its built-in
defaults. `audita_config_version` always renders as `version` and defaults to
`1`. The role manages `audita_config_path | dirname` and the resulting file
with the `audita_config_owner`, `audita_config_group`,
`audita_config_directory_mode`, and `audita_config_file_mode` inputs. The
standalone defaults are `root:root`, directory mode `0755`, and file mode
`0644`. Composing roles may override these generic configuration inputs for
their own deployment policy.

LLM API-key settings name environment variables through
`audita_llm_proposal_api_key_env` and `audita_llm_validation_api_key_env`; they
must never contain secret values. The repository-local integration suite
validates the rendered file with Audita rather than executing the CLI during
production convergence.

## Example

```yaml
- hosts: audita_hosts
  roles:
    - role: ansible-role-audita
```

## Validation

The integration driver installs pinned collection dependencies, runs syntax
checking and ansible-lint, and validates the default configuration with Audita
before requiring clean repeated convergence. It also covers one representative
field-specific configuration with nested values, null omission, and intentional
falsey values, then validates it natively. A combined recovery scenario proves
that a missing binary is rebuilt with a caller-supplied Go executable while
dependency management is disabled. Audita currently has no native
release-identity command, so the suite intentionally does not use a source
commit as a version-test proxy.
On a fresh host, default convergence may also install Git through APT, refresh
the APT cache, and install the Go Snap. Application state is limited to
`/usr/local/src/audita`, `/usr/local/bin/audita`, and
`/usr/local/etc/audita/config.yml`; temporary test-specific files remain inside
the suite's private temporary directory. The suite restores the default
deployment during cleanup:

```sh
tests/integration
```