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hawkbit/docs/entity-definitions.md
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# Entity Definitions
## Target
Targets represent devices or software instances that can receive software updates.
**Filterable/Sortable Fields:**
| Field | Description | Type |
|----------------------------------|----------------------------------------------------------------------|------|
| controllerId | Unique identifier of the target | String |
| name | Display name | String |
| description | Description text | String |
| updateStatus | Current update status (UNKNOWN, IN_SYNC, PENDING, ERROR, REGISTERED) | Enum |
| address | IP address or URI | String |
| lastTargetQuery | Last time the target polled (timestamp in ms) | Long |
| createdAt | Creation timestamp | Long |
| createdBy | Creator username | String |
| lastModifiedAt | Last modification timestamp | Long |
| lastModifiedBy | Last modifier username | String |
| assignedDistributionSet.name | Name of assigned distribution set | String |
| assignedDistributionSet.version | Version of assigned distribution set | String |
| installedDistributionSet.name | Name of installed distribution set | String |
| installedDistributionSet.version | Version of installed distribution set | String |
| targetType.key | Target type key | String |
| targetType.name | Target type name | String |
| tags.name | Tag name | String |
| group | Group name | String |
| metadata.<key> | Metadata value by key | String |
| controllerAttributes.<key> | Controller attribute by key | String |
**Example Queries:**
```
# Find targets with update errors
updateStatus==ERROR
# Find targets by name pattern
name==device-*
# Find targets with specific distribution set assigned
assignedDistributionSet.name==Firmware;assignedDistributionSet.version==2.0.0
# Find targets that haven't polled in 24 hours (timestamp example)
lastTargetQuery=lt=1704067200000
# Find targets by tag
tags.name==production
# Find targets by metadata
metadata.location==factory-A
# Find targets by controller attribute
controllerAttributes.firmware_version==1.2.3
```
---
## Distribution Set
Distribution Sets are collections of software modules that can be deployed to targets.
**Filterable/Sortable Fields:**
| Field | Description | Type |
|-------|-------------|------|
| id | Unique identifier | Long |
| name | Distribution set name | String |
| version | Version string | String |
| description | Description text | String |
| type.key | Distribution set type key | String |
| type.name | Distribution set type name | String |
| valid | Whether the DS is valid for deployment | Boolean |
| createdAt | Creation timestamp | Long |
| createdBy | Creator username | String |
| lastModifiedAt | Last modification timestamp | Long |
| lastModifiedBy | Last modifier username | String |
| tags.name | Tag name | String |
| modules.name | Software module name | String |
| metadata.<key> | Metadata value by key | String |
**Example Queries:**
```
# Find distribution sets by name
name==Firmware*
# Find valid distribution sets only
valid==true
# Find by type
type.key==os_app
# Find by tag
tags.name==release-candidate
# Find distribution sets containing a specific module
modules.name==bootloader
```
---
## Rollout
Rollouts are used to deploy software to groups of targets in a controlled manner.
**Filterable/Sortable Fields:**
| Field | Description | Type |
|-------|-------------|------|
| id | Unique identifier | Long |
| name | Rollout name | String |
| description | Description text | String |
| status | Rollout status (CREATING, READY, PAUSED, STARTING, RUNNING, FINISHED, etc.) | Enum |
| distributionSet.id | Distribution set ID | Long |
| distributionSet.name | Distribution set name | String |
| distributionSet.version | Distribution set version | String |
| distributionSet.type | Distribution set type | String |
| createdAt | Creation timestamp | Long |
| createdBy | Creator username | String |
| lastModifiedAt | Last modification timestamp | Long |
| lastModifiedBy | Last modifier username | String |
**Example Queries:**
```
# Find running rollouts
status==RUNNING
# Find rollouts by name
name==Campaign*
# Find rollouts for a specific distribution set
distributionSet.name==Firmware;distributionSet.version==2.0.0
# Find finished or paused rollouts
status=in=(FINISHED,PAUSED)
```
---
## Action
Actions represent deployment operations assigned to targets.
**Filterable/Sortable Fields:**
| Field | Description | Type |
|-------|-------------|------|
| id | Unique identifier | Long |
| status | Action status (SCHEDULED, RUNNING, FINISHED, ERROR, CANCELED, etc.) | Enum |
| active | Whether the action is currently active | Boolean |
| weight | Priority weight (0-1000) | Integer |
| lastActionStatusCode | Last status code reported | Integer |
| externalRef | External reference string | String |
| target.controllerId | Target controller ID | String |
| target.name | Target name | String |
| target.updateStatus | Target update status | Enum |
| distributionSet.id | Distribution set ID | Long |
| distributionSet.name | Distribution set name | String |
| distributionSet.version | Distribution set version | String |
| rollout.id | Rollout ID | Long |
| rollout.name | Rollout name | String |
| rolloutGroup.id | Rollout group ID | Long |
| rolloutGroup.name | Rollout group name | String |
| createdAt | Creation timestamp | Long |
| createdBy | Creator username | String |
| lastModifiedAt | Last modification timestamp | Long |
| lastModifiedBy | Last modifier username | String |
**Example Queries:**
```
# Find active actions
active==true
# Find actions by status
status==RUNNING
# Find failed actions
status==ERROR
# Find actions for a specific target
target.controllerId==device-001
# Find actions for a specific rollout
rollout.name==Campaign2024
# Find high-priority actions
weight=gt=800
# Find actions with specific status code
lastActionStatusCode==200
```
---
## Software Module
Software Modules are individual software components that make up distribution sets.
**Filterable/Sortable Fields:**
| Field | Description | Type |
|-------|-------------|------|
| id | Unique identifier | Long |
| name | Module name | String |
| version | Version string | String |
| description | Description text | String |
| type.key | Software module type key | String |
| type.name | Software module type name | String |
| createdAt | Creation timestamp | Long |
| createdBy | Creator username | String |
| lastModifiedAt | Last modification timestamp | Long |
| lastModifiedBy | Last modifier username | String |
| metadata.<key> | Metadata value by key | String |
**Example Queries:**
```
# Find modules by name
name==bootloader*
# Find modules by type
type.key==os
# Find modules by version
version==2.0.*
# Find modules with specific metadata
metadata.checksum==abc123
```
---
## Target Filter Query
Target Filter Queries define RSQL filters for grouping targets, used for rollouts and auto-assignment.
**Filterable/Sortable Fields:**
| Field | Description | Type |
|-------|-------------|------|
| id | Unique identifier | Long |
| name | Filter name | String |
| autoAssignDistributionSet.name | Auto-assign DS name | String |
| autoAssignDistributionSet.version | Auto-assign DS version | String |
| createdAt | Creation timestamp | Long |
| createdBy | Creator username | String |
| lastModifiedAt | Last modification timestamp | Long |
| lastModifiedBy | Last modifier username | String |
**Example Queries:**
```
# Find filters by name
name==Production*
# Find filters with auto-assignment configured
autoAssignDistributionSet.name==*
# Find filters for a specific auto-assign distribution set
autoAssignDistributionSet.name==Firmware;autoAssignDistributionSet.version==2.0.0
```
---