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package xyz.driver.core
import java.nio.file.{Files, Path, Paths}
import com.google.auth.oauth2.ServiceAccountCredentials
sealed trait Platform {
def isKubernetes: Boolean
}
object Platform {
case class GoogleCloud(keyfile: Path, namespace: String) extends Platform {
def credentials: ServiceAccountCredentials = ServiceAccountCredentials.fromStream(
Files.newInputStream(keyfile)
)
def project: String = credentials.getProjectId
override def isKubernetes = true
}
// case object AliCloud extends Platform
case object Dev extends Platform {
override def isKubernetes: Boolean = false
}
lazy val fromEnv: Platform = {
def isGoogle = sys.env.get("GOOGLE_APPLICATION_CREDENTIALS").map { value =>
val keyfile = Paths.get(value)
require(Files.isReadable(keyfile), s"Google credentials file $value is not readable.")
val namespace = sys.env.getOrElse("SERVICE_NAMESPACE", sys.error("Namespace not set"))
GoogleCloud(keyfile, namespace)
}
isGoogle.getOrElse(Dev)
}
def current: Platform = fromEnv
}
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