# Modules (/docs/reference/modules)

> What each module registers in a full deployment: API groups, migrations, and the jobs the runtime runs.



The built-ins (the node controllers, `inventory`, `capacity`) are always registered; the rest are passed as `betterCompute({ modules })`.

| Module             | API groups                                                                                                                                                                                                                                                                                                                                                                           | Migrations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `node-controllers` |                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| `site-boot`        |                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| `inventory`        | [`inventory`](/docs/reference/api/inventory)                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| `capacity`         | [`capacity`](/docs/reference/api/capacity), [`pools`](/docs/reference/api/pools), [`quotas`](/docs/reference/api/quotas), [`reservations`](/docs/reference/api/reservations)                                                                                                                                                                                                         | `capacity/0001_device_links`, `capacity/0002_lease_health`, `capacity/0003_device_counts`, `capacity/0004_mig_layouts`, `capacity/0005_extend_holds`                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| `tenancy`          |                                                                                                                                                                                                                                                                                                                                                                                      | `tenancy/0001_tenant_states`, `tenancy/0002_teardown_attempts`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| `confirmations`    |                                                                                                                                                                                                                                                                                                                                                                                      | `confirmations/0001_bindings`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| `quorum`           | [`commandBatches`](/docs/reference/api/command-batches)                                                                                                                                                                                                                                                                                                                              | `quorum/0001_batches`, `quorum/0002_payload_digest`, `quorum/0003_trust_bundle_state`, `quorum/0004_trust_bundle_approver_set`, `quorum/0005_batch_request`, `quorum/0006_trust_bundle_history`, `quorum/0007_leaf_payload`, `quorum/0008_batch_agent`                                                                                                                                                                                                                                                                                                                                                                        |
| `pki`              |                                                                                                                                                                                                                                                                                                                                                                                      | `pki/0001_sealed_secrets`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| `tunnels`          | [`nodes`](/docs/reference/api/nodes), [`sandboxes`](/docs/reference/api/sandboxes), [`tunnels`](/docs/reference/api/tunnels)                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| `provision`        | [`images`](/docs/reference/api/images), [`profiles`](/docs/reference/api/profiles), [`workflows`](/docs/reference/api/workflows)                                                                                                                                                                                                                                                     | `provision/0001_workflows`, `provision/0002_images`, `provision/0003_workflow_owner`, `provision/0004_gated_mig_layout`, `provision/0005_image_pins`, `provision/0006_workflow_batch`                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| `metal`            | [`metal`](/docs/reference/api/metal)                                                                                                                                                                                                                                                                                                                                                 | `metal/0001_nodes`, `metal/0002_addresses`, `metal/0003_tenant_root`, `metal/0004_bmc_credentials`, `metal/0005_batch`, `metal/0006_bmc_driver_options`, `metal/0007_discovered`, `metal/0008_mac_source`                                                                                                                                                                                                                                                                                                                                                                                                                     |
| `vps`              | [`flavors`](/docs/reference/api/flavors), [`instances`](/docs/reference/api/instances), [`providerAccounts`](/docs/reference/api/provider-accounts), [`sandboxSnapshots`](/docs/reference/api/sandbox-snapshots), [`sandboxTemplates`](/docs/reference/api/sandbox-templates), [`sandboxVolumes`](/docs/reference/api/sandbox-volumes), [`sandboxes`](/docs/reference/api/sandboxes) | `vps/0001_instances`, `vps/0002_sealed_user_data`, `vps/0003_provider_bootstraps`, `vps/0004_sandboxes`, `vps/0005_sandbox_snapshots`, `vps/0006_warm_claims`, `vps/0007_template_env`, `vps/0008_template_network`, `vps/0009_snapshot_fixes`, `vps/0010_sandbox_metric_indexes`, `vps/0011_host_certificates`, `vps/0012_host_cert_validity`, `vps/0013_sandbox_expiring`, `vps/0014_sandbox_extending`, `vps/0015_snapshot_agent`, `vps/0016_warm_secret_versions`, `vps/0017_identity_rebind`, `vps/0018_placement`, `vps/0019_ip_pool_dns`, `vps/0020_volumes`, `vps/0021_volume_resize_hold`, `vps/0022_volume_storage` |
| `events`           | [`webhooks`](/docs/reference/api/webhooks)                                                                                                                                                                                                                                                                                                                                           | `events/0001_webhooks`, `events/0002_delivery_retention`, `events/0003_webhooks_by_tenant`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| `fleet`            | [`fleet`](/docs/reference/api/fleet)                                                                                                                                                                                                                                                                                                                                                 | `fleet/0001_names`, `fleet/0002_applied`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| `rollout`          | [`releases`](/docs/reference/api/releases), [`rollouts`](/docs/reference/api/rollouts)                                                                                                                                                                                                                                                                                               | `rollout/0001_rollouts`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| `audit`            |                                                                                                                                                                                                                                                                                                                                                                                      | `audit/0001_checkpoints`, `audit/0002_archives`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |

## Jobs [#jobs]

Each is one reconciler or runtime loop; `compute.jobs[name].tick()` runs one pass.

* `audit.checkpoint`
* `capacity.hosts`
* `capacity.mig`
* `capacity.reservations`
* `capacity.rollup`
* `capacity.usage`
* `command-sweeper`
* `drain`
* `event-subscribers`
* `events.deliver`
* `events.fanout`
* `events.prune`
* `fleet.drift`
* `health`
* `inventory`
* `inventory.hygiene`
* `liveness`
* `metal`
* `node`
* `nodespec`
* `outbox-dispatch`
* `provision.site-cache`
* `quorum.batches`
* `rollout`
* `site-boot`
* `tenancy`
* `tenancy.resync`
* `tunnels.ssh-certificates-gc`
* `tunnels.ssh-certificates-reauthorize`
* `vps.bootstraps`
* `vps.hosts`
* `vps.instances`
* `vps.sandboxes`
* `vps.usage`
* `vps.volumes`
* `workflow`