Struct HostStateMetadata 

#[non_exhaustive]
pub struct HostStateMetadata {
    pub host_id: Uuid,
    pub hostname: String,
    pub friendly_name: String,
    pub os_type: Option<String>,
    pub os_version: Option<String>,
    pub architecture: Option<String>,
    pub tags: Vec<String>,
    pub agent_version: Option<String>,
    pub agent_last_seen_at: Option<String>,
}

Per-host metadata published to MQTT for MQTT-browser visibility and Home Assistant.

Included in SoftwareStatesPayload. All fields are sourced exclusively from the shared DB — safe for multi-controller deployments.

Intentionally excludes ip_address (network topology risk) and agent_online (must come from the event-driven HostConnectivityUpdatedPayload).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

host_id: Uuid

Host UUID.

hostname: String

Hostname as reported by the agent.

friendly_name: String

User-defined display name.

os_type: Option<String>

Operating system type (e.g. "linux", "macos"). null when unknown.

os_version: Option<String>

Operating system version (e.g. "Ubuntu 24.04 LTS"). null when unknown.

architecture: Option<String>

CPU architecture (e.g. "x86_64", "aarch64"). null when unknown.

tags: Vec<String>

Organisational tag names assigned to this host (e.g. ["production", "web-server"]).

agent_version: Option<String>

Agent binary version string (e.g. "0.2.1"). null when never connected.

Sourced from services.client_version for the newest approved, non-deactivated agent linked to this host.

agent_last_seen_at: Option<String>

ISO 8601 timestamp of when the agent last sent a message.

Sourced from services.last_seen_at. null when never seen.

Implementations

impl HostStateMetadata

pub fn new(host_id: Uuid, hostname: String, friendly_name: String) -> Self

Creates a new HostStateMetadata with required fields.

Trait Implementations

impl Clone for HostStateMetadata

fn clone(&self) -> HostStateMetadata

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HostStateMetadata

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HostStateMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HostStateMetadata

impl PartialEq for HostStateMetadata

fn eq(&self, other: &HostStateMetadata) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for HostStateMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for HostStateMetadata

impl WireValidate for HostStateMetadata

fn wire_validate(&self) -> Result<(), WireValidationError>

Validate that all fields are within wire protocol size limits.