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config.go
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config.go
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// SPDX-License-Identifier: AGPL-3.0-only
// Provenance-includes-location: https://github.com/cortexproject/cortex/blob/master/pkg/storage/bucket/gcs/config.go
// Provenance-includes-license: Apache-2.0
// Provenance-includes-copyright: The Cortex Authors.
package gcs
import (
"flag"
"github.com/grafana/dskit/flagext"
)
// Config holds the config options for GCS backend
type Config struct {
BucketName string `yaml:"bucket_name"`
ServiceAccount flagext.Secret `yaml:"service_account" doc:"description_method=GCSServiceAccountLongDescription"`
}
// RegisterFlags registers the flags for GCS storage
func (cfg *Config) RegisterFlags(f *flag.FlagSet) {
cfg.RegisterFlagsWithPrefix("", f)
}
// RegisterFlagsWithPrefix registers the flags for GCS storage with the provided prefix
func (cfg *Config) RegisterFlagsWithPrefix(prefix string, f *flag.FlagSet) {
f.StringVar(&cfg.BucketName, prefix+"gcs.bucket-name", "", "GCS bucket name")
f.Var(&cfg.ServiceAccount, prefix+"gcs.service-account", cfg.GCSServiceAccountShortDescription())
}
func (cfg *Config) GCSServiceAccountShortDescription() string {
return "JSON either from a Google Developers Console client_credentials.json file, or a Google Developers service account key. Needs to be valid JSON, not a filesystem path."
}
func (cfg *Config) GCSServiceAccountLongDescription() string {
return cfg.GCSServiceAccountShortDescription() +
" If empty, fallback to Google default logic:" +
"\n1. A JSON file whose path is specified by the GOOGLE_APPLICATION_CREDENTIALS environment variable. For workload identity federation, refer to https://cloud.google.com/iam/docs/how-to#using-workload-identity-federation on how to generate the JSON configuration file for on-prem/non-Google cloud platforms." +
"\n2. A JSON file in a location known to the gcloud command-line tool: $HOME/.config/gcloud/application_default_credentials.json." +
"\n3. On Google Compute Engine it fetches credentials from the metadata server."
}