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legacyconfig.go
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legacyconfig.go
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// Copyright 2019, OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http:https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package googlecloudexporter // import "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/googlecloudexporter"
import (
"github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/collector"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/exporter/exporterhelper"
"google.golang.org/api/option"
)
// LegacyConfig defines configuration for Google Cloud exporter.
type LegacyConfig struct {
config.ExporterSettings `mapstructure:",squash"`
ProjectID string `mapstructure:"project"`
UserAgent string `mapstructure:"user_agent"`
Endpoint string `mapstructure:"endpoint"`
// Only has effect if Endpoint is not ""
UseInsecure bool `mapstructure:"use_insecure"`
// Timeout for all API calls. If not set, defaults to 12 seconds.
exporterhelper.TimeoutSettings `mapstructure:",squash"` // squash ensures fields are correctly decoded in embedded struct.
exporterhelper.QueueSettings `mapstructure:"sending_queue"`
exporterhelper.RetrySettings `mapstructure:"retry_on_failure"`
ResourceMappings []ResourceMapping `mapstructure:"resource_mappings"`
// GetClientOptions returns additional options to be passed
// to the underlying Google Cloud API client.
// Must be set programmatically (no support via declarative config).
// Optional.
GetClientOptions func() []option.ClientOption
MetricConfig MetricConfig `mapstructure:"metric"`
}
func (cfg *LegacyConfig) Validate() error {
return nil
}
type MetricConfig struct {
Prefix string `mapstructure:"prefix"`
SkipCreateMetricDescriptor bool `mapstructure:"skip_create_descriptor"`
}
// ResourceMapping defines mapping of resources from source (OpenCensus) to target (Google Cloud).
type ResourceMapping struct {
SourceType string `mapstructure:"source_type"`
TargetType string `mapstructure:"target_type"`
LabelMappings []LabelMapping `mapstructure:"label_mappings"`
}
type LabelMapping struct {
SourceKey string `mapstructure:"source_key"`
TargetKey string `mapstructure:"target_key"`
// Optional flag signals whether we can proceed with transformation if a label is missing in the resource.
// When required label is missing, we fallback to default resource mapping.
Optional bool `mapstructure:"optional"`
}
func toNewConfig(cfg *LegacyConfig) *Config {
newCfg := &Config{
ExporterSettings: cfg.ExporterSettings,
TimeoutSettings: cfg.TimeoutSettings,
QueueSettings: cfg.QueueSettings,
RetrySettings: cfg.RetrySettings,
Config: collector.DefaultConfig(),
}
newCfg.Config.ProjectID = cfg.ProjectID
newCfg.Config.UserAgent = cfg.UserAgent
newCfg.Config.MetricConfig.ClientConfig.Endpoint = cfg.Endpoint
newCfg.Config.TraceConfig.ClientConfig.Endpoint = cfg.Endpoint
newCfg.Config.MetricConfig.ClientConfig.UseInsecure = cfg.UseInsecure
newCfg.Config.TraceConfig.ClientConfig.UseInsecure = cfg.UseInsecure
newCfg.Config.MetricConfig.ClientConfig.GetClientOptions = cfg.GetClientOptions
newCfg.Config.TraceConfig.ClientConfig.GetClientOptions = cfg.GetClientOptions
if cfg.MetricConfig.Prefix != "" {
newCfg.Config.MetricConfig.Prefix = cfg.MetricConfig.Prefix
}
newCfg.Config.MetricConfig.SkipCreateMetricDescriptor = cfg.MetricConfig.SkipCreateMetricDescriptor
return newCfg
}