trillian/cmd/internal/provider/default_systems.go at master · digicert/trillian · GitHub

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package provider

import (
	"slices"

	"github.com/google/trillian/quota"
	"github.com/google/trillian/storage"
	"github.com/google/trillian/util/election2"
)

var (
	DefaultQuotaSystem    string
	DefaultStorageSystem  string
	DefaultElectionSystem string
)

func init() {
	defaultProvider := "mysql"
	providers := storage.Providers()
	if len(providers) > 0 && !slices.Contains(providers, defaultProvider) {
		slices.Sort(providers)
		defaultProvider = providers[0]
	}
	DefaultStorageSystem = defaultProvider

	providers = quota.Providers()
	if len(providers) > 0 && !slices.Contains(providers, defaultProvider) {
		slices.Sort(providers)
		defaultProvider = providers[0]
	}
	DefaultQuotaSystem = defaultProvider

	defaultProvider = "etcd"
	providers = election2.Providers()
	if len(providers) > 0 && !slices.Contains(providers, defaultProvider) {
		slices.Sort(providers)
		defaultProvider = providers[0]
	}
	DefaultElectionSystem = defaultProvider
}