Add setup scripts for a Graphite server.

compute_engine_scripts/monitoring/vm_create_instance.sh

Index: compute_engine_scripts/monitoring/vm_create_instance.sh
diff --git a/compute_engine_scripts/monitoring/vm_create_instance.sh b/compute_engine_scripts/monitoring/vm_create_instance.sh
new file mode 100755
index 0000000000000000000000000000000000000000..efc4fa33fe14b6881b16e7cd8519b4330800d8df
--- /dev/null
+++ b/compute_engine_scripts/monitoring/vm_create_instance.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# Create the compute instance for skiamonitor.com.
+#
+
+source ../buildbots/vm_config.sh
+
+gcutil --project=$PROJECT_ID addinstance skia-monitoring-$ZONE_TAG \
+                 --zone=$ZONE
+                 --external_ip_address=$MONITORING_IP_ADDRESS \
+                 --service_account=$PROJECT_USER \
+                 --service_account_scopes=$SCOPES \
+                 --network=default \
+                 --machine_type=$MONITORING_MACHINE_TYPE \
+                 --image=$MONITORING_IMAGE \
+                 --persistent_boot_disk