Struct PlacementContext 

pub struct PlacementContext<'a> {
    pub instance_name: &'a str,
    pub cluster_name: Option<&'a str>,
    pub role: ServerRole,
    pub instance_replicas: i32,
    pub role_instance_count: i32,
    pub cluster_instance_count: i32,
    pub instance_selector_labels: &'a BTreeMap<String, String>,
}

Everything build_pod_placement needs to know about the instance whose Pod spec is being built.

Fields

instance_name: &'a str

Name of the Bind9Instance (also the Deployment name).

cluster_name: Option<&'a str>

Owning cluster / provider name, or None for a standalone instance.

Role and Cluster spread scopes are only meaningful with a cluster: they select on bindy.firestoned.io/cluster, which a standalone instance’s Pods do not carry.

role: ServerRole

Role of this instance.

instance_replicas: i32

Pods in this instance’s own Deployment (spec.replicas).

role_instance_count: i32

How many instances of this role the owning cluster asks for.

1 for a standalone instance. This is what makes the default fire for a cluster of three single-Pod primaries, where instance_replicas on its own would always be 1 and never reach the threshold.

cluster_instance_count: i32

Total instances the cluster asks for across both roles.

Only used to decide whether a Cluster-scoped default is worth emitting.

instance_selector_labels: &'a BTreeMap<String, String>

This Deployment’s own Pod selector labels, used for Instance scope.

Trait Implementations

impl<'a> Clone for PlacementContext<'a>

fn clone(&self) -> PlacementContext<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for PlacementContext<'a>

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

Formats the value using the given formatter.