Enum HostState 

pub enum HostState {
    Pending,
    Activating,
    Deferred,
    Soaking,
    Converged,
    Failed,
    Reverted,
}

6-state rollout machine per RFC-0005 §3. Replaces the pre-v0.2 9-variant nixfleet_proto::HostRolloutState (the Queued / Dispatched / ConfirmWindow / Healthy / Soaked variants are removed — phases 4-6 delete the old enum entirely once the new machine is wired through).

Variants

Pending

CP has issued a Dispatch; agent has not yet acked.

Activating

Agent acked; switch-to-configuration is firing or has fired pending confirmation.

Deferred

Activation pipeline set the profile + bootloader but skipped the live switch-to-configuration because a critical component (dbus/systemd/kernel/init) cannot be live-swapped on a running system. The new generation activates on next reboot. Ordering- eligible (host-edges + wave-promotion + advance_current_waves treat Deferred ≡ Converged for cascade-progression purposes — the host has done what it can within the rollout step) but not health-verified (probes haven’t run against the new closure; channel-edges stays strict and waits for actual Converged). On operator reboot, the agent’s boot-recovery handshake observes current_closure == target_closure and CP’s handle_heartbeat synthesis (LIFT #1) drives Deferred → Soaking via RemoteActivationCompleted.

Soaking

Agent reports activation succeeded; probes have started; soak window has not yet elapsed.

Converged

Soak elapsed, probes passing, current == declared. Terminal for ordering (successor channels may release).

Failed

Sustained probe failure observed by the agent and reported to CP. Agent has read onHealthFailure from the signed manifest and decided autonomously what comes next (RFC-0005 §4.2 Failed event).

Reverted

Agent has completed rollback to prior closure. Channel-level quarantine holds the bad SHA.

Trait Implementations

impl Clone for HostState

fn clone(&self) -> HostState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostState

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HostState

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for HostState

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for HostState

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for HostState

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for HostState

impl Eq for HostState

impl StructuralPartialEq for HostState