[autoscaler] Add a 'request_cores' function for manual autoscaling (#4754)

python/ray/autoscaler/aws/node_provider.py

@@ -173,6 +173,13 @@ class AWSNodeProvider(NodeProvider):
     def create_node(self, node_config, tags, count):
         tags = to_aws_format(tags)
         conf = node_config.copy()
+
+        # Delete unsupported keys from the node config
+        try:
+            del conf["Resources"]
+        except KeyError:
+            pass
+
         tag_pairs = [{
             "Key": TAG_RAY_CLUSTER_NAME,
             "Value": self.cluster_name,