Add running the tool manually

Author: JohnGarbutt

README.rst

@@ -1,7 +1,7 @@
 os-capacity
 ===========
 
-This is a prototype tool to extract prototype information.
+This is a prototype tool to extract capacity information.
 
 .. note::
 
@@ -25,6 +25,17 @@ Now lets get that installed inside a virtual environment:
     source .venv-test/bin/activate
     pip install -U .
 
+Prometheus Exporter
+-------------------
+
+Assuming you have clouds.yaml in the right place and OS_CLOUD set:
+
+.. code::
+
+   ./os_capacity/prometheus.py
+   openstack_total_capacity_per_flavor{flavor="small"} 1
+   openstack_capacity_by_hostname{hypervisor="aio",flavor="small"} 1
+
 Configuration
 -------------
 

os_capacity/commands/commands.py

@@ -18,14 +18,15 @@
 from cliff.lister import Lister
 
 from os_capacity.data import metrics
+from os_capacity import prometheus
 from os_capacity import utils
-from os_capacity.data import candidates
+
 
 
 class PrometheusAll(Lister):
     """To be run as node exporter textfile collector."""
     def take_action(self, parsed_args):
-        candidates.print_exporter_data(self.app)
+        prometheus.print_exporter_data(self.app)
         # TODO(johngarbutt) a total hack!
         return (('fake'), [])