func credentialsFileFromEnv() string {
	return os.Getenv("AZURE_CREDENTIALS_FILE")
}
credentialsFileFromEnv retrieves the Azure credentials file from the environment.
package main
import (
	"os"
	"strings"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/joho/godotenv"
	"github.com/pkg/errors"
)
const (
	subscriptionIDEnvVar = "AZURE_SUBSCRIPTION_ID"
	cloudNameEnvVar      = "AZURE_CLOUD_NAME"
	resourceGroupConfigKey   = "resourceGroup"
	credentialsFileConfigKey = "credentialsFile"
)