make scala deploy config respect environment variables

hail-is · Jul 31, 2023 · 604974e · 604974e
1 parent 04a7fcb
commit 604974e
Showing 1 changed file with 13 additions and 5 deletions.
diff --git a/hail/src/main/scala/is/hail/services/DeployConfig.scala b/hail/src/main/scala/is/hail/services/DeployConfig.scala
@@ -52,19 +52,27 @@ object DeployConfig {
         fromConfig(JsonMethods.parse(in))
       }
     } else
-      new DeployConfig(
-        "external",
-        "default",
-        "hail.is")
+      fromConfig("external", "default", "hail.is")
   }
 
   def fromConfig(config: JValue): DeployConfig = {
     implicit val formats: Formats = DefaultFormats
-    new DeployConfig(
+    fromConfig(
       (config \ "location").extract[String],
       (config \ "default_namespace").extract[String],
       (config \ "domain").extract[Option[String]].getOrElse("hail.is"))
   }
+
+  def fromConfig(location: String, defaultNamespace: String, domain: String): DeployConfig = {
+    new DeployConfig(
+      sys.env.getOrElse(toEnvVarName("location"), location),
+      sys.env.getOrElse(toEnvVarName("default_namespace"), location),
+      sys.env.getOrElse(toEnvVarName("domain"), location))
+  }
+
+  private[this] def toEnvVarName(s: String): String = {
+    "HAIL_" + s.toUpperCase
+  }
 }
 
 class DeployConfig(