Struct PrometheusClient 

pub struct PrometheusClient { /* private fields */ }

Prometheus client for querying historical metrics.

Implementations

impl PrometheusClient

pub fn new(url: &str) -> Result<Self, PrometheusError>

Create a new Prometheus client without authentication.

This is the default and works for kubectl port-forward connections where no authentication is needed.

pub fn with_auth( url: &str, auth: PrometheusAuth, ) -> Result<Self, PrometheusError>

Create a new Prometheus client with optional authentication.

Use this for externally exposed Prometheus instances that require auth.

pub async fn is_available(&self) -> bool

Check if Prometheus is reachable.

pub async fn get_container_history( &self, namespace: &str, pod_pattern: &str, container: &str, time_range: &str, ) -> Result<ContainerHistory, PrometheusError>

Get container CPU/memory history.

pub async fn get_workload_history( &self, namespace: &str, workload_name: &str, workload_kind: &str, time_range: &str, ) -> Result<WorkloadHistory, PrometheusError>

Get history for all containers in a workload.

pub fn generate_recommendation( history: &ContainerHistory, current_cpu_request: Option<u64>, current_memory_request: Option<u64>, safety_margin_pct: u8, ) -> HistoricalRecommendation

Generate right-sizing recommendations based on historical data.