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Radarr (Core Service)#

Radarr is a movie manager that automates searching, grabbing, and organizing movies through indexers and download clients.

Service Relationships#

Classification Role
Core Service Movie automation
Depends On None
Optional Decypharr, NzbDAV, AltMount, Prowlarr
Exposes UI Yes (Web UI)

Configuration in dumb_config.json#

"radarr": {
  "instances": {
    "Default": {
      "enabled": false,
      "core_service": "",
      "use_neutarr": false,
      "use_profilarr": false,
      "postgres_enabled": false,
      "postgres_main_db": "",
      "postgres_log_db": "",
      "process_name": "Radarr",
      "repo_owner": "Radarr",
      "repo_name": "Radarr",
      "release_version_enabled": false,
      "release_version": "latest",
      "clear_on_update": false,
      "exclude_dirs": [],
      "platforms": [],
      "suppress_logging": false,
      "auto_update": false,
      "auto_update_interval": 24,
      "pinned_version": "",
      "port": 7878,
      "config_dir": "/radarr/default",
      "config_file": "/radarr/default/config.xml",
      "log_file": "/radarr/default/logs/radarr.txt",
      "command": [],
      "env": {}
    }
  }
}

Key Configuration Fields#

  • core_service: Set to decypharr, nzbdav, altmount, or a list of workflow keys to enable DUMB integration.
  • use_neutarr: Opt this instance into NeutArr automation.
  • use_profilarr: Opt this instance into Profilarr auto‑linking.
  • postgres_enabled: Opt this instance into DUMB-managed PostgreSQL config. SQLite is the default; set this to true only when you want Radarr to use PostgreSQL.
  • postgres_main_db / postgres_log_db: Optional database-name overrides. When blank, DUMB uses radarr-main and radarr-log for the default instance, or unique instance-scoped names for additional instances.
  • port: Web UI port (default 7878).
  • pinned_version: Optional version pin for Radarr updates.
  • repo_owner / repo_name: GitHub repo used for releases or branch builds.
  • release_version_enabled / release_version: Use GitHub releases (e.g., latest, nightly, prerelease, or a tag).
  • clear_on_update: Clear the install directory before updating.
  • exclude_dirs: Directories to preserve when clearing.
  • platforms: Build platforms (auto‑defaults to ["dotnet"] when using branches).
  • config_dir, config_file, log_file: Paths for config and logs.

PostgreSQL database mode#

When postgres_enabled is true, DUMB:

  • enables the bundled PostgreSQL service if needed;
  • creates the Radarr main/log databases in postgres.databases;
  • starts PostgreSQL before Radarr; and
  • writes the required PostgresUser, PostgresPassword, PostgresHost, PostgresPort, PostgresMainDb, and PostgresLogDb entries to Radarr's config.xml.

During onboarding, enabling postgres_enabled for Radarr is enough; you do not need to separately select PostgreSQL as an optional service.

This does not migrate existing SQLite data

Setting postgres_enabled: true changes the database backend Radarr starts with. It does not copy radarr.db into PostgreSQL.

If you enable this on an existing SQLite-backed Radarr instance without doing a manual migration, Radarr can start against fresh PostgreSQL databases and appear empty or newly initialized.

For an existing instance, use the Database Migration tool on its service page. Run a rehearsal first, review its table-count validation, and only then start guarded cutover. See Arr SQLite to PostgreSQL Migration.

Radarr's upstream documentation still classifies existing SQLite migration as unsupported. Back up /radarr/... and /postgres_data before proceeding, even when using DUMB's guarded workflow.

PostgreSQL is not a temporary toggle

There is no known supported migration path from PostgreSQL back to SQLite for Radarr. Treat postgres_enabled: true as a long-term database choice unless you are willing to recreate the Radarr instance from scratch.

DUMB preserves the pre-cutover SQLite database and can restore its configuration, but it does not copy later PostgreSQL changes back into SQLite.

Repo-based installs and updates#

Radarr now supports the same repo‑based controls as other DUMB services.

  • GitHub releases: Set release_version_enabled: true with a valid repo_owner/repo_name.
  • Default updater: Leave release_version_enabled: false to use the standard Arr updater.

GitHub sources take priority when enabled and are not a fallback. pinned_version only applies to the traditional Arr updater.

Integration with DUMB#

  • For Decypharr integration, set core_service to decypharr and follow the Decypharr guide.
  • For NzbDAV integration, set core_service to nzbdav and follow the NzbDAV guide.
  • For AltMount integration, set core_service to altmount and follow the AltMount guide.
  • For combined workflows, set core_service to a list such as ["decypharr", "nzbdav", "altmount"].
  • Use Prowlarr to centrally manage indexers and sync them to Radarr.
  • DUMB enables Arr folder permission updates and applies permissions to configured root folders during integration.
  • See Core Service Routing for how core_service affects automation.

Accessing the UI#

  • Navigate to: http://<host>:7878

Resources#