parca

Documentation

Index

• func NewParcaDatasource(ctx context.Context, httpClientProvider *httpclient.Provider, ...) (instancemgmt.Instance, error)
• type CustomMeta
• type Node
• type ParcaDatasource
  • func (d *ParcaDatasource) CallResource(ctx context.Context, req *backend.CallResourceRequest, ...) error
  • func (d *ParcaDatasource) CheckHealth(ctx context.Context, _ *backend.CheckHealthRequest) (*backend.CheckHealthResult, error)
  • func (d *ParcaDatasource) Dispose()
  • func (d *ParcaDatasource) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error)
• type ProfileType
• type Service
  • func ProvideService(httpClientProvider *httpclient.Provider) *Service
  • func (s *Service) CallResource(ctx context.Context, req *backend.CallResourceRequest, ...) error
  • func (s *Service) CheckHealth(ctx context.Context, req *backend.CheckHealthRequest) (*backend.CheckHealthResult, error)
  • func (s *Service) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error)

Functions

func NewParcaDatasource

func NewParcaDatasource(ctx context.Context, httpClientProvider *httpclient.Provider, settings backend.DataSourceInstanceSettings) (instancemgmt.Instance, error)

NewParcaDatasource creates a new datasource instance.

Types

type CustomMeta

type CustomMeta struct {
	ProfileTypeID string
}

type Node

type Node struct {
	Node  *v1alpha1.FlamegraphNode
	Level int64
}

type ParcaDatasource

type ParcaDatasource struct {
	// contains filtered or unexported fields
}

ParcaDatasource is a datasource for querying application performance profiles.

func (*ParcaDatasource) CallResource

func (d *ParcaDatasource) CallResource(ctx context.Context, req *backend.CallResourceRequest, sender backend.CallResourceResponseSender) error

func (*ParcaDatasource) CheckHealth

func (d *ParcaDatasource) CheckHealth(ctx context.Context, _ *backend.CheckHealthRequest) (*backend.CheckHealthResult, error)

CheckHealth handles health checks sent from Grafana to the plugin. The main use case for these health checks is the test button on the datasource configuration page which allows users to verify that a datasource is working as expected.

func (*ParcaDatasource) Dispose

func (d *ParcaDatasource) Dispose()

Dispose here tells plugin SDK that plugin wants to clean up resources when a new instance created. As soon as datasource settings change detected by SDK old datasource instance will be disposed and a new one will be created using NewSampleDatasource factory function.

func (*ParcaDatasource) QueryData

func (d *ParcaDatasource) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error)

QueryData handles multiple queries and returns multiple responses. req contains the queries []DataQuery (where each query contains RefID as a unique identifier). The QueryDataResponse contains a map of RefID to the response for each query, and each response contains Frames ([]*Frame).

type ProfileType

type ProfileType struct {
	// Same as *v1alpha1.ProfileType just added the ID
	Name       string `json:"name,omitempty"`
	SampleType string `json:"sample_type,omitempty"`
	SampleUnit string `json:"sample_unit,omitempty"`
	PeriodType string `json:"period_type,omitempty"`
	PeriodUnit string `json:"period_unit,omitempty"`
	Delta      bool   `json:"delta,omitempty"`
	ID         string `json:"ID,omitempty"`
}

type Service

type Service struct {
	// contains filtered or unexported fields
}

func ProvideService

func ProvideService(httpClientProvider *httpclient.Provider) *Service

func (*Service) CallResource

func (s *Service) CallResource(ctx context.Context, req *backend.CallResourceRequest, sender backend.CallResourceResponseSender) error

func (*Service) CheckHealth

func (s *Service) CheckHealth(ctx context.Context, req *backend.CheckHealthRequest) (*backend.CheckHealthResult, error)

func (*Service) QueryData

func (s *Service) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error)