storage

package
v1.3.0 Latest Latest
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Published: Jan 8, 2022 License: Apache-2.0 Imports: 20 Imported by: 0

Documentation

Index

Constants

View Source
const (
	// TypeEnvVar is the name of the env var that defines the type of backend used for time series storage.
	TypeEnvVar = "TS_STORAGE_TYPE"

	// DependencyStorageTypeEnvVar is the name of the env var that defines the type of backend used for dependencies storage.
	DependencyStorageTypeEnvVar = "DEPENDENCY_STORAGE_TYPE"
)

Variables

View Source
var AllStorageTypes = []string{influxDbStorageType, elasticsearchStorageType, prometheusStorageType, kafkaStorageType,
	gatewayStorageType, cortexStorageType, kdbStorageType, opentsdbStorageType}

AllStorageTypes defines all available storage backends

Functions

This section is empty.

Types

type Factory

type Factory struct {
	FactoryConfig
	// contains filtered or unexported fields
}

Factory implements storage.Factory interface as a meta-factory for storage components.

func NewFactory

func NewFactory(config FactoryConfig) (*Factory, error)

NewFactory creates the meta-factory.

func (*Factory) AddFlags

func (f *Factory) AddFlags(flagSet *flag.FlagSet)

AddFlags implements plugin.Configurable

func (*Factory) AddPipelineFlags

func (f *Factory) AddPipelineFlags(flagSet *flag.FlagSet)

func (*Factory) Close

func (f *Factory) Close() error

Close closes the resources held by the factory

func (*Factory) CreateWriter

func (f *Factory) CreateWriter() (metricstore.Writer, error)

func (*Factory) InitFromViper

func (f *Factory) InitFromViper(v *viper.Viper)

InitFromViper implements plugin.Configurable

func (*Factory) Initialize

func (f *Factory) Initialize(metricsFactory metrics.Factory, logger *zap.Logger) error

Initialize implements storage.Factory.

type FactoryConfig

type FactoryConfig struct {
	WriterTypes             []string
	ReaderType              string
	DependenciesStorageType string
}

FactoryConfig tells the Factory which types of backends it needs to create for different storage types.

func FactoryConfigFromEnvAndCLI

func FactoryConfigFromEnvAndCLI(log io.Writer) FactoryConfig

FactoryConfigFromEnvAndCLI reads the desired types of storage backends from TS_STORAGE_TYPE and DEPENDENCY_STORAGE_TYPE environment variables. Allowed values:

  • `influxdb` - built-in
  • `es` - built-in
  • `prometheus` - built-in
  • `kafka` - built-in
  • `gateway` - built-in
  • `cortex` - built-in
  • `kdb` - built-in
  • `opentsdb` - built-in
  • `plugin` - loads a dynamic plugin that implements storage.Factory interface (not supported at the moment)

For backwards compatibility it also parses the args looking for deprecated --ts-storage.type flag. If found, it writes a deprecation warning to the log.

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