config

package
v0.49.0-rc.2 Latest Latest
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 Go to latest Published: Jan 8, 2024 License: Apache-2.0 Imports: 20 Imported by: 2,236

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	// DefaultConfig is the default top-level configuration.
	DefaultConfig = Config{
		GlobalConfig: DefaultGlobalConfig,
	}

	// DefaultGlobalConfig is the default global configuration.
	DefaultGlobalConfig = GlobalConfig{
		ScrapeInterval:     model.Duration(1 * time.Minute),
		ScrapeTimeout:      model.Duration(10 * time.Second),
		EvaluationInterval: model.Duration(1 * time.Minute),

		ScrapeProtocols: DefaultScrapeProtocols,
	}

	// DefaultScrapeConfig is the default scrape configuration.
	DefaultScrapeConfig = ScrapeConfig{

		ScrapeClassicHistograms: false,
		MetricsPath:             "/metrics",
		Scheme:                  "http",
		HonorLabels:             false,
		HonorTimestamps:         true,
		HTTPClientConfig:        config.DefaultHTTPClientConfig,
		EnableCompression:       true,
	}

	// DefaultAlertmanagerConfig is the default alertmanager configuration.
	DefaultAlertmanagerConfig = AlertmanagerConfig{
		Scheme:           "http",
		Timeout:          model.Duration(10 * time.Second),
		APIVersion:       AlertmanagerAPIVersionV2,
		HTTPClientConfig: config.DefaultHTTPClientConfig,
	}

	// DefaultRemoteWriteConfig is the default remote write configuration.
	DefaultRemoteWriteConfig = RemoteWriteConfig{
		RemoteTimeout:    model.Duration(30 * time.Second),
		QueueConfig:      DefaultQueueConfig,
		MetadataConfig:   DefaultMetadataConfig,
		HTTPClientConfig: config.DefaultHTTPClientConfig,
	}

	// DefaultQueueConfig is the default remote queue configuration.
	DefaultQueueConfig = QueueConfig{

		MaxShards:         50,
		MinShards:         1,
		MaxSamplesPerSend: 2000,

		Capacity:          10000,
		BatchSendDeadline: model.Duration(5 * time.Second),

		MinBackoff: model.Duration(30 * time.Millisecond),
		MaxBackoff: model.Duration(5 * time.Second),
	}

	// DefaultMetadataConfig is the default metadata configuration for a remote write endpoint.
	DefaultMetadataConfig = MetadataConfig{
		Send:              true,
		SendInterval:      model.Duration(1 * time.Minute),
		MaxSamplesPerSend: 2000,
	}

	// DefaultRemoteReadConfig is the default remote read configuration.
	DefaultRemoteReadConfig = RemoteReadConfig{
		RemoteTimeout:        model.Duration(1 * time.Minute),
		HTTPClientConfig:     config.DefaultHTTPClientConfig,
		FilterExternalLabels: true,
	}

	// DefaultStorageConfig is the default TSDB/Exemplar storage configuration.
	DefaultStorageConfig = StorageConfig{
		ExemplarsConfig: &DefaultExemplarsConfig,
	}

	DefaultExemplarsConfig = ExemplarsConfig{
		MaxExemplars: 100000,
	}
)

The defaults applied before parsing the respective config sections.

View Source 
var (
	PrometheusProto      ScrapeProtocol = "PrometheusProto"
	PrometheusText0_0_4  ScrapeProtocol = "PrometheusText0.0.4"
	OpenMetricsText0_0_1 ScrapeProtocol = "OpenMetricsText0.0.1"
	OpenMetricsText1_0_0 ScrapeProtocol = "OpenMetricsText1.0.0"

	ScrapeProtocolsHeaders = map[ScrapeProtocol]string{
		PrometheusProto:      "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited",
		PrometheusText0_0_4:  "text/plain;version=0.0.4",
		OpenMetricsText0_0_1: "application/openmetrics-text;version=0.0.1",
		OpenMetricsText1_0_0: "application/openmetrics-text;version=1.0.0",
	}

	DefaultScrapeProtocols = []ScrapeProtocol{
		OpenMetricsText1_0_0,
		OpenMetricsText0_0_1,
		PrometheusText0_0_4,
	}
	DefaultNativeHistogramScrapeProtocols = []ScrapeProtocol{
		PrometheusProto,
		OpenMetricsText1_0_0,
		OpenMetricsText0_0_1,
		PrometheusText0_0_4,
	}
)
View Source 
var SupportedAlertmanagerAPIVersions = []AlertmanagerAPIVersion{
	AlertmanagerAPIVersionV1, AlertmanagerAPIVersionV2,
}

Functions

func CheckTargetAddress 

func CheckTargetAddress(address model.LabelValue) error

CheckTargetAddress checks if target address is valid.

Types

type AlertingConfig 

type AlertingConfig struct {
	AlertRelabelConfigs []*relabel.Config   `yaml:"alert_relabel_configs,omitempty"`
	AlertmanagerConfigs AlertmanagerConfigs `yaml:"alertmanagers,omitempty"`
}

AlertingConfig configures alerting and alertmanager related configs.

func (*AlertingConfig) SetDirectory 

func (c *AlertingConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*AlertingConfig) UnmarshalYAML 

func (c *AlertingConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type AlertmanagerAPIVersion 

type AlertmanagerAPIVersion string

AlertmanagerAPIVersion represents a version of the github.com/prometheus/alertmanager/api, e.g. 'v1' or 'v2'. 

const (
	// AlertmanagerAPIVersionV1 represents
	// github.com/prometheus/alertmanager/api/v1.
	AlertmanagerAPIVersionV1 AlertmanagerAPIVersion = "v1"
	// AlertmanagerAPIVersionV2 represents
	// github.com/prometheus/alertmanager/api/v2.
	AlertmanagerAPIVersionV2 AlertmanagerAPIVersion = "v2"
)

func (*AlertmanagerAPIVersion) UnmarshalYAML 

func (v *AlertmanagerAPIVersion) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type AlertmanagerConfig 

type AlertmanagerConfig struct {
	ServiceDiscoveryConfigs discovery.Configs       `yaml:"-"`
	HTTPClientConfig        config.HTTPClientConfig `yaml:",inline"`
	SigV4Config             *sigv4.SigV4Config      `yaml:"sigv4,omitempty"`

	// The URL scheme to use when talking to Alertmanagers.
	Scheme string `yaml:"scheme,omitempty"`
	// Path prefix to add in front of the push endpoint path.
	PathPrefix string `yaml:"path_prefix,omitempty"`
	// The timeout used when sending alerts.
	Timeout model.Duration `yaml:"timeout,omitempty"`

	// The api version of Alertmanager.
	APIVersion AlertmanagerAPIVersion `yaml:"api_version"`

	// List of Alertmanager relabel configurations.
	RelabelConfigs []*relabel.Config `yaml:"relabel_configs,omitempty"`
}

AlertmanagerConfig configures how Alertmanagers can be discovered and communicated with.

func (*AlertmanagerConfig) MarshalYAML 

func (c *AlertmanagerConfig) MarshalYAML() (interface{}, error)

MarshalYAML implements the yaml.Marshaler interface.

func (*AlertmanagerConfig) SetDirectory 

func (c *AlertmanagerConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*AlertmanagerConfig) UnmarshalYAML 

func (c *AlertmanagerConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type AlertmanagerConfigs 

type AlertmanagerConfigs []*AlertmanagerConfig

AlertmanagerConfigs is a slice of *AlertmanagerConfig.

func (AlertmanagerConfigs) ToMap 

func (a AlertmanagerConfigs) ToMap() map[string]*AlertmanagerConfig

ToMap converts a slice of *AlertmanagerConfig to a map.

type Config 

type Config struct {
	GlobalConfig      GlobalConfig    `yaml:"global"`
	AlertingConfig    AlertingConfig  `yaml:"alerting,omitempty"`
	RuleFiles         []string        `yaml:"rule_files,omitempty"`
	ScrapeConfigFiles []string        `yaml:"scrape_config_files,omitempty"`
	ScrapeConfigs     []*ScrapeConfig `yaml:"scrape_configs,omitempty"`
	StorageConfig     StorageConfig   `yaml:"storage,omitempty"`
	TracingConfig     TracingConfig   `yaml:"tracing,omitempty"`

	RemoteWriteConfigs []*RemoteWriteConfig `yaml:"remote_write,omitempty"`
	RemoteReadConfigs  []*RemoteReadConfig  `yaml:"remote_read,omitempty"`
}

Config is the top-level configuration for Prometheus's config files.

func Load 

func Load(s string, expandExternalLabels bool, logger log.Logger) (*Config, error)

Load parses the YAML input s into a Config.

func LoadFile 

func LoadFile(filename string, agentMode, expandExternalLabels bool, logger log.Logger) (*Config, error)

LoadFile parses the given YAML file into a Config.

func (*Config) GetScrapeConfigs added in v0.43.0 

func (c *Config) GetScrapeConfigs() ([]*ScrapeConfig, error)

GetScrapeConfigs returns the scrape configurations.

func (*Config) SetDirectory 

func (c *Config) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (Config) String 

func (c Config) String() string

func (*Config) UnmarshalYAML 

func (c *Config) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type ExemplarsConfig 

type ExemplarsConfig struct {
	// MaxExemplars sets the size, in # of exemplars stored, of the single circular buffer used to store exemplars in memory.
	// Use a value of 0 or less than 0 to disable the storage without having to restart Prometheus.
	MaxExemplars int64 `yaml:"max_exemplars,omitempty"`
}

ExemplarsConfig configures runtime reloadable configuration options.

type GlobalConfig 

type GlobalConfig struct {
	// How frequently to scrape targets by default.
	ScrapeInterval model.Duration `yaml:"scrape_interval,omitempty"`
	// The default timeout when scraping targets.
	ScrapeTimeout model.Duration `yaml:"scrape_timeout,omitempty"`
	// The protocols to negotiate during a scrape. It tells clients what
	// protocol are accepted by Prometheus and with what weight (most wanted is first).
	// Supported values (case sensitive): PrometheusProto, OpenMetricsText0.0.1,
	// OpenMetricsText1.0.0, PrometheusText0.0.4.
	ScrapeProtocols []ScrapeProtocol `yaml:"scrape_protocols,omitempty"`
	// How frequently to evaluate rules by default.
	EvaluationInterval model.Duration `yaml:"evaluation_interval,omitempty"`
	// File to which PromQL queries are logged.
	QueryLogFile string `yaml:"query_log_file,omitempty"`
	// The labels to add to any timeseries that this Prometheus instance scrapes.
	ExternalLabels labels.Labels `yaml:"external_labels,omitempty"`
	// An uncompressed response body larger than this many bytes will cause the
	// scrape to fail. 0 means no limit.
	BodySizeLimit units.Base2Bytes `yaml:"body_size_limit,omitempty"`
	// More than this many samples post metric-relabeling will cause the scrape to
	// fail. 0 means no limit.
	SampleLimit uint `yaml:"sample_limit,omitempty"`
	// More than this many targets after the target relabeling will cause the
	// scrapes to fail. 0 means no limit.
	TargetLimit uint `yaml:"target_limit,omitempty"`
	// More than this many labels post metric-relabeling will cause the scrape to
	// fail. 0 means no limit.
	LabelLimit uint `yaml:"label_limit,omitempty"`
	// More than this label name length post metric-relabeling will cause the
	// scrape to fail. 0 means no limit.
	LabelNameLengthLimit uint `yaml:"label_name_length_limit,omitempty"`
	// More than this label value length post metric-relabeling will cause the
	// scrape to fail. 0 means no limit.
	LabelValueLengthLimit uint `yaml:"label_value_length_limit,omitempty"`
	// Keep no more than this many dropped targets per job.
	// 0 means no limit.
	KeepDroppedTargets uint `yaml:"keep_dropped_targets,omitempty"`
}

GlobalConfig configures values that are used across other configuration objects.

func (*GlobalConfig) SetDirectory 

func (c *GlobalConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*GlobalConfig) UnmarshalYAML 

func (c *GlobalConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type MetadataConfig 

type MetadataConfig struct {
	// Send controls whether we send metric metadata to remote storage.
	Send bool `yaml:"send"`
	// SendInterval controls how frequently we send metric metadata.
	SendInterval model.Duration `yaml:"send_interval"`
	// Maximum number of samples per send.
	MaxSamplesPerSend int `yaml:"max_samples_per_send,omitempty"`
}

MetadataConfig is the configuration for sending metadata to remote storage.

type QueueConfig 

type QueueConfig struct {
	// Number of samples to buffer per shard before we block. Defaults to
	// MaxSamplesPerSend.
	Capacity int `yaml:"capacity,omitempty"`

	// Max number of shards, i.e. amount of concurrency.
	MaxShards int `yaml:"max_shards,omitempty"`

	// Min number of shards, i.e. amount of concurrency.
	MinShards int `yaml:"min_shards,omitempty"`

	// Maximum number of samples per send.
	MaxSamplesPerSend int `yaml:"max_samples_per_send,omitempty"`

	// Maximum time sample will wait in buffer.
	BatchSendDeadline model.Duration `yaml:"batch_send_deadline,omitempty"`

	// On recoverable errors, backoff exponentially.
	MinBackoff       model.Duration `yaml:"min_backoff,omitempty"`
	MaxBackoff       model.Duration `yaml:"max_backoff,omitempty"`
	RetryOnRateLimit bool           `yaml:"retry_on_http_429,omitempty"`
}

QueueConfig is the configuration for the queue used to write to remote storage.

type RemoteReadConfig 

type RemoteReadConfig struct {
	URL           *config.URL       `yaml:"url"`
	RemoteTimeout model.Duration    `yaml:"remote_timeout,omitempty"`
	Headers       map[string]string `yaml:"headers,omitempty"`
	ReadRecent    bool              `yaml:"read_recent,omitempty"`
	Name          string            `yaml:"name,omitempty"`

	// We cannot do proper Go type embedding below as the parser will then parse
	// values arbitrarily into the overflow maps of further-down types.
	HTTPClientConfig config.HTTPClientConfig `yaml:",inline"`

	// RequiredMatchers is an optional list of equality matchers which have to
	// be present in a selector to query the remote read endpoint.
	RequiredMatchers model.LabelSet `yaml:"required_matchers,omitempty"`

	// Whether to use the external labels as selectors for the remote read endpoint.
	FilterExternalLabels bool `yaml:"filter_external_labels,omitempty"`
}

RemoteReadConfig is the configuration for reading from remote storage.

func (*RemoteReadConfig) SetDirectory 

func (c *RemoteReadConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*RemoteReadConfig) UnmarshalYAML 

func (c *RemoteReadConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type RemoteWriteConfig 

type RemoteWriteConfig struct {
	URL                  *config.URL       `yaml:"url"`
	RemoteTimeout        model.Duration    `yaml:"remote_timeout,omitempty"`
	Headers              map[string]string `yaml:"headers,omitempty"`
	WriteRelabelConfigs  []*relabel.Config `yaml:"write_relabel_configs,omitempty"`
	Name                 string            `yaml:"name,omitempty"`
	SendExemplars        bool              `yaml:"send_exemplars,omitempty"`
	SendNativeHistograms bool              `yaml:"send_native_histograms,omitempty"`

	// We cannot do proper Go type embedding below as the parser will then parse
	// values arbitrarily into the overflow maps of further-down types.
	HTTPClientConfig config.HTTPClientConfig `yaml:",inline"`
	QueueConfig      QueueConfig             `yaml:"queue_config,omitempty"`
	MetadataConfig   MetadataConfig          `yaml:"metadata_config,omitempty"`
	SigV4Config      *sigv4.SigV4Config      `yaml:"sigv4,omitempty"`
	AzureADConfig    *azuread.AzureADConfig  `yaml:"azuread,omitempty"`
}

RemoteWriteConfig is the configuration for writing to remote storage.

func (*RemoteWriteConfig) SetDirectory 

func (c *RemoteWriteConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*RemoteWriteConfig) UnmarshalYAML 

func (c *RemoteWriteConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type ScrapeConfig 

type ScrapeConfig struct {
	// The job name to which the job label is set by default.
	JobName string `yaml:"job_name"`
	// Indicator whether the scraped metrics should remain unmodified.
	HonorLabels bool `yaml:"honor_labels,omitempty"`
	// Indicator whether the scraped timestamps should be respected.
	HonorTimestamps bool `yaml:"honor_timestamps"`
	// Indicator whether to track the staleness of the scraped timestamps.
	TrackTimestampsStaleness bool `yaml:"track_timestamps_staleness"`
	// A set of query parameters with which the target is scraped.
	Params url.Values `yaml:"params,omitempty"`
	// How frequently to scrape the targets of this scrape config.
	ScrapeInterval model.Duration `yaml:"scrape_interval,omitempty"`
	// The timeout for scraping targets of this config.
	ScrapeTimeout model.Duration `yaml:"scrape_timeout,omitempty"`
	// The protocols to negotiate during a scrape. It tells clients what
	// protocol are accepted by Prometheus and with what preference (most wanted is first).
	// Supported values (case sensitive): PrometheusProto, OpenMetricsText0.0.1,
	// OpenMetricsText1.0.0, PrometheusText0.0.4.
	ScrapeProtocols []ScrapeProtocol `yaml:"scrape_protocols,omitempty"`
	// Whether to scrape a classic histogram that is also exposed as a native histogram.
	ScrapeClassicHistograms bool `yaml:"scrape_classic_histograms,omitempty"`
	// The HTTP resource path on which to fetch metrics from targets.
	MetricsPath string `yaml:"metrics_path,omitempty"`
	// The URL scheme with which to fetch metrics from targets.
	Scheme string `yaml:"scheme,omitempty"`
	// Indicator whether to request compressed response from the target.
	EnableCompression bool `yaml:"enable_compression"`
	// An uncompressed response body larger than this many bytes will cause the
	// scrape to fail. 0 means no limit.
	BodySizeLimit units.Base2Bytes `yaml:"body_size_limit,omitempty"`
	// More than this many samples post metric-relabeling will cause the scrape to
	// fail. 0 means no limit.
	SampleLimit uint `yaml:"sample_limit,omitempty"`
	// More than this many targets after the target relabeling will cause the
	// scrapes to fail. 0 means no limit.
	TargetLimit uint `yaml:"target_limit,omitempty"`
	// More than this many labels post metric-relabeling will cause the scrape to
	// fail. 0 means no limit.
	LabelLimit uint `yaml:"label_limit,omitempty"`
	// More than this label name length post metric-relabeling will cause the
	// scrape to fail. 0 means no limit.
	LabelNameLengthLimit uint `yaml:"label_name_length_limit,omitempty"`
	// More than this label value length post metric-relabeling will cause the
	// scrape to fail. 0 means no limit.
	LabelValueLengthLimit uint `yaml:"label_value_length_limit,omitempty"`
	// More than this many buckets in a native histogram will cause the scrape to
	// fail.
	NativeHistogramBucketLimit uint `yaml:"native_histogram_bucket_limit,omitempty"`
	// Keep no more than this many dropped targets per job.
	// 0 means no limit.
	KeepDroppedTargets uint `yaml:"keep_dropped_targets,omitempty"`

	ServiceDiscoveryConfigs discovery.Configs       `yaml:"-"`
	HTTPClientConfig        config.HTTPClientConfig `yaml:",inline"`

	// List of target relabel configurations.
	RelabelConfigs []*relabel.Config `yaml:"relabel_configs,omitempty"`
	// List of metric relabel configurations.
	MetricRelabelConfigs []*relabel.Config `yaml:"metric_relabel_configs,omitempty"`
}

ScrapeConfig configures a scraping unit for Prometheus.

func (*ScrapeConfig) MarshalYAML 

func (c *ScrapeConfig) MarshalYAML() (interface{}, error)

MarshalYAML implements the yaml.Marshaler interface.

func (*ScrapeConfig) SetDirectory 

func (c *ScrapeConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*ScrapeConfig) UnmarshalYAML 

func (c *ScrapeConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

func (*ScrapeConfig) Validate added in v0.43.0 

func (c *ScrapeConfig) Validate(globalConfig GlobalConfig) error

Validate validates scrape config, but also fills relevant default values from global config if needed.

type ScrapeConfigs added in v0.43.0 

type ScrapeConfigs struct {
	ScrapeConfigs []*ScrapeConfig `yaml:"scrape_configs,omitempty"`
}

type ScrapeProtocol added in v0.49.0 

type ScrapeProtocol string

ScrapeProtocol represents supported protocol for scraping metrics.

func (ScrapeProtocol) Validate added in v0.49.0 

func (s ScrapeProtocol) Validate() error

Validate returns error if given scrape protocol is not supported.

type StorageConfig 

type StorageConfig struct {
	TSDBConfig      *TSDBConfig      `yaml:"tsdb,omitempty"`
	ExemplarsConfig *ExemplarsConfig `yaml:"exemplars,omitempty"`
}

StorageConfig configures runtime reloadable configuration options.

type TSDBConfig added in v0.39.0 

type TSDBConfig struct {
	// OutOfOrderTimeWindow sets how long back in time an out-of-order sample can be inserted
	// into the TSDB. This flag is typically set while unmarshaling the configuration file and translating
	// OutOfOrderTimeWindowFlag's duration. The unit of this flag is expected to be the same as any
	// other timestamp in the TSDB.
	OutOfOrderTimeWindow int64

	// OutOfOrderTimeWindowFlag holds the parsed duration from the config file.
	// During unmarshall, this is converted into milliseconds and stored in OutOfOrderTimeWindow.
	// This should not be used directly and must be converted into OutOfOrderTimeWindow.
	OutOfOrderTimeWindowFlag model.Duration `yaml:"out_of_order_time_window,omitempty"`
}

TSDBConfig configures runtime reloadable configuration options.

func (*TSDBConfig) UnmarshalYAML added in v0.39.0 

func (t *TSDBConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type TracingClientType 

type TracingClientType string
const (
	TracingClientHTTP TracingClientType = "http"
	TracingClientGRPC TracingClientType = "grpc"

	GzipCompression = "gzip"
)

func (*TracingClientType) UnmarshalYAML 

func (t *TracingClientType) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

type TracingConfig 

type TracingConfig struct {
	ClientType       TracingClientType `yaml:"client_type,omitempty"`
	Endpoint         string            `yaml:"endpoint,omitempty"`
	SamplingFraction float64           `yaml:"sampling_fraction,omitempty"`
	Insecure         bool              `yaml:"insecure,omitempty"`
	TLSConfig        config.TLSConfig  `yaml:"tls_config,omitempty"`
	Headers          map[string]string `yaml:"headers,omitempty"`
	Compression      string            `yaml:"compression,omitempty"`
	Timeout          model.Duration    `yaml:"timeout,omitempty"`
}

TracingConfig configures the tracing options.

func (*TracingConfig) SetDirectory 

func (t *TracingConfig) SetDirectory(dir string)

SetDirectory joins any relative file paths with dir.

func (*TracingConfig) UnmarshalYAML 

func (t *TracingConfig) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

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