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package xyz.driver.core
package init
import java.nio.file.{Files, Path, Paths}
import com.google.auth.oauth2.ServiceAccountCredentials
sealed trait Platform
object Platform {
case class GoogleCloud(keyfile: Path, namespace: String) extends Platform {
def credentials: ServiceAccountCredentials = ServiceAccountCredentials.fromStream(
Files.newInputStream(keyfile)
)
def project: String = credentials.getProjectId
}
object GoogleCloud {
lazy val fromEnv: GoogleCloud = {
val credentialsFile =
sys.env.getOrElse(
"GOOGLE_APPLICATION_CREDENTIALS",
sys.error("Expected GOOGLE_APPLICATION_CREDENTIALS file to be set in gcp environment"))
val keyfile = Paths.get(credentialsFile)
require(Files.isReadable(keyfile), s"Google credentials file $credentialsFile is not readable.")
val namespace = sys.env.getOrElse("SERVICE_NAMESPACE", sys.error("Namespace not set"))
GoogleCloud(keyfile, namespace)
}
}
case class AliCloud(
project: String,
accountId: String,
accessId: String,
accessKey: String,
region: String,
namespace: String)
extends Platform
object AliCloud {
lazy val fromEnv: AliCloud = {
AliCloud(
project = sys.env("CLOUD_PROJECT"),
accountId = sys.env("ALICLOUD_ACCOUNT_ID"),
accessId = sys.env("ALICLOUD_ACCESS_ID"),
accessKey = sys.env("ALICLOUD_ACCESS_KEY"),
region = sys.env("CLOUD_REGION"),
namespace = sys.env("SERVICE_NAMESPACE")
)
}
}
case object Dev extends Platform
lazy val fromEnv: Platform = {
sys.env.get("CLOUD_PROVIDER") match {
case Some("alicloud") => AliCloud.fromEnv
case Some("gcp") => GoogleCloud.fromEnv
// For backwards compat, try instantiating GCP first, falling back to Dev
case _ => util.Try(GoogleCloud.fromEnv).getOrElse(Dev)
}
}
def current: Platform = fromEnv
}
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