chetanmeh commented on a change in pull request #3722: Scala based admin tooling
URL: 
https://github.com/apache/incubator-openwhisk/pull/3722#discussion_r193959878
 
 

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 File path: core/admin/src/main/scala/whisk/core/cli/Main.scala
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 @@ -0,0 +1,161 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package whisk.core.cli
+
+import java.io.File
+
+import akka.actor.ActorSystem
+import akka.stream.ActorMaterializer
+import ch.qos.logback.classic.{Level, LoggerContext}
+import org.rogach.scallop._
+import org.slf4j.LoggerFactory
+import pureconfig.error.ConfigReaderException
+import whisk.common.{AkkaLogging, Logging, TransactionId}
+import whisk.core.database.UserCommand
+
+import scala.concurrent.duration.DurationInt
+import scala.concurrent.{Await, Future}
+import scala.util.{Failure, Success, Try}
+
+class Conf(arguments: Seq[String]) extends ScallopConf(arguments) {
+  banner("OpenWhisk admin command line tool")
+
+  val verbose = tally()
+  val configFile = opt[File](descr = "application.conf path")
 
 Review comment:
   No specific reason. So. far I was thinking that we "publish" the tool jar to 
maven/github release and then admins can just download the jar and need not 
checkout whole of openwhisk repo to run the admin commands. In such a case they 
would need to provide a custom conf
   
   Thinking about it it now it would be fine to support that. This may require 
following changes
   
   1. Capture `ArtifactStore` settings as part of group vars
   2. Have a `application.conf.j2` with some templating logic to render 
different config based on store type
   3. Have it copied to std place say `${OPENWHISK_HOME}/whisk-cli.conf` or put 
it under `${OPENWHISK_HOME}/bin/whisk-cli.conf`
   4. Have the tooling look there by default

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