Updates for Prometheus Exporter

- Split requirements in test-requirements and requirements
- Update .gitignore
- Initial Parser for IPMI metrics that was collected and tests
(This will be added in another PR: Cable, Drive, Processor, Battery,
 Module, Entity, Add-in, Critical, Voltage, OS, Event, Physical)
- Update Prometheus Driver to generate files with the metrics in
prometheus format
- Create simple driver to be used when we want to collect sample of
data

.gitignore

@@ -126,3 +126,5 @@ dmypy.json
 # End of https://www.gitignore.io/api/python
 
 .stestr/
+AUTHORS
+ChangeLog

ironic_prometheus_exporter/messaging.py

@@ -1,12 +1,13 @@
 import os
-import json
 
+from ironic_prometheus_exporter.parsers import manager
 from oslo_config import cfg
 from oslo_messaging.notify import notifier
 
+
 prometheus_opts = [
-    cfg.StrOpt('file_path', required=True,
-               help='Path for the json file where the metrics will be stored.')
+    cfg.StrOpt('files_dir', required=True,
+               help='Directory where the files will be written.')
 ]
 
 
@@ -18,13 +19,32 @@ class PrometheusFileDriver(notifier.Driver):
     """Publish notifications into a File to be used by Prometheus"""
 
     def __init__(self, conf, topics, transport):
-        self.file_path = conf.oslo_messaging_notifications.file_path
-        if not self.file_path.endswith('.json'):
-            raise Exception('The file should end with .json')
-        if not os.path.exists(os.path.dirname(self.file_path)):
-            os.makedirs(os.path.dirname(self.file_path))
+        self.files_dir = conf.oslo_messaging_notifications.files_dir
+        if not os.path.exists(self.files_dir):
+            os.makedirs(os.path.dirname(self.files_dir))
         super(PrometheusFileDriver, self).__init__(conf, topics, transport)
 
     def notify(self, ctxt, message, priority, retry):
-        with open(self.file_path, 'w') as prometheus_file:
-            json.dump(message, prometheus_file)
+        try:
+            node_parser_manager = manager.ParserManager(message)
+            node_metrics = node_parser_manager.merge_information()
+            node_name = message['payload']['node_name']
+            node_file = open(os.path.join(self.files_dir, node_name), 'w')
+            node_file.write(node_metrics)
+            node_file.close()
+        except Exception as e:
+            print(e)
+
+
+class SimpleFileDriver(notifier.Driver):
+
+    def __init__(self, conf, topics, transport):
+        self.files_dir = conf.oslo_messaging_notifications.files_dir
+        if not os.path.exists(self.files_dir):
+            os.makedirs(os.path.dirname(self.files_dir))
+        super(SimpleFileDriver, self).__init__(conf, topics, transport)
+
+    def notify(self, ctx, message, priority, retry):
+        file = open(os.path.join(self.files_dir, 'simplefile'), 'w')
+        file.write(message)
+        file.close()

ironic_prometheus_exporter/parsers/ipmi.py

@@ -0,0 +1,616 @@
+import re
+
+# NOTE (iurygregory): most of the sensor readings come in the ipmi format
+# each type of sensor consider a different range of values that aren't integers
+# (eg: 0h, 2eh), 0h will be published as 0 and the other values as 1, this way
+# we will be able to create prometheus alerts.
+# Documentation: https://www.intel.com/content/www/us/en/servers/ipmi/
+# ipmi-second-gen-interface-spec-v2-rev1-1.html
+
+
+def add_prometheus_type(name, metric_type):
+    return '# TYPE %s %s' % (name, metric_type)
+
+
+class Management(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.lower().split()
+            label = '_'.join(e[:-1])
+            metric_name = prefix + label
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                if self.payload[entry]['Sensor Reading'] == "0h":
+                    entries_values[entry] = 0
+                else:
+                    entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Temperature(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        sufix = 'temp_celcius'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.split()[0]
+            label = e.lower()
+            metric_name = prefix + sufix
+            if label not in sufix:
+                metric_name = prefix + label + "_" + sufix
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                value = self.payload[entry]['Sensor Reading'].split()
+                if not re.search(r'(\d+(\.\d*)?|\.\d+)', value[0]):
+                    raise Exception("No valid value in Sensor Reading")
+                entries_values[entry] = value[0]
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class System(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_system_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.lower().split()
+            label = '_'.join(e[:-1])
+            metric_name = prefix + label
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                if self.payload[entry]['Sensor Reading'] == 'No Reading':
+                    entries_values[entry] = None
+                else:
+                    if self.payload[entry]['Sensor Reading'] == "0h":
+                        entries_values[entry] = 0
+                    else:
+                        entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                if values[e] is None:
+                    continue
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Current(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = re.sub(r'[\d]', '', entry.lower()).split()
+            label = '_'.join(e[:-1])
+            sufix = '_' + self.payload[entry]['Sensor Reading'].split()[-1]
+            metric_name = prefix + label + sufix.lower()
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                value = self.payload[entry]['Sensor Reading'].split()
+                if not re.search(r'(\d+(\.\d*)?|\.\d+)', value[0]):
+                    raise Exception("No valid value in Sensor Reading")
+                entries_values[entry] = value[0]
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Version(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.lower().split()
+            label = '_'.join(e[:-1])
+            metric_name = prefix + label
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                if self.payload[entry]['Sensor Reading'] == 'No Reading':
+                    entries_values[entry] = None
+                else:
+                    if self.payload[entry]['Sensor Reading'] == "0h":
+                        entries_values[entry] = 0
+                    else:
+                        entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                if values[e] is None:
+                    continue
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Memory(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.lower().split()
+            label = '_'.join(e[:-1])
+            if 'memory' not in label:
+                label = 'memory_' + label
+            metric_name = prefix + label.replace('-', '_')
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                if self.payload[entry]['Sensor Reading'] == 'No Reading':
+                    entries_values[entry] = None
+                else:
+                    if self.payload[entry]['Sensor Reading'] == "0h":
+                        entries_values[entry] = 0
+                    else:
+                        entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                if values[e] is None:
+                    continue
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Power(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_power_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.lower().split()
+            label = '_'.join(e[:-1])
+            metric_name = prefix + label.replace('-', '_')
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                no_values = ['No Reading', 'Disabled']
+                if self.payload[entry]['Sensor Reading'] in no_values:
+                    entries_values[entry] = None
+                else:
+                    if self.payload[entry]['Sensor Reading'] == "0h":
+                        entries_values[entry] = 0
+                    else:
+                        entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                if values[e] is None:
+                    continue
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Watchdog2(object):
+
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        metric_dic = {}
+        for entry in self.payload:
+            e = entry.lower().split()
+            label = '_'.join(e[:-1])
+            metric_name = prefix + label.replace('-', '_')
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                no_values = ['No Reading', 'Disabled']
+                if self.payload[entry]['Sensor Reading'] in no_values:
+                    entries_values[entry] = None
+                else:
+                    if self.payload[entry]['Sensor Reading'] == "0h":
+                        entries_values[entry] = 0
+                    else:
+                        entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                if values[e] is None:
+                    continue
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)
+
+
+class Fan(object):
+    def __init__(self, payload, node_name):
+        self.payload = payload
+        self.node_name = node_name
+
+    def _metric_names(self):
+        prefix = 'baremetal_'
+        metric_dic = {}
+        for entry in self.payload:
+            sufix = ''
+            e = re.sub(r'[\d].*$', '', entry.lower())
+            e = re.sub(r'[\(\)]', '', e).split()
+            label = '_'.join(e)
+            label_unit = self.payload[entry]['Sensor Reading'].split()
+            if len(label_unit) > 1:
+                sufix = '_' + label_unit[-1].lower()
+            metric_name = prefix + label.replace('-', '_') + sufix
+            if metric_name in metric_dic:
+                metric_dic[metric_name].append(entry)
+            else:
+                metric_dic[metric_name] = [entry]
+        return metric_dic
+
+    def _extract_labels(self, entries):
+        deafult_label = 'node_name="%s"' % self.node_name
+        if len(entries) == 1:
+            return {entries[0]: '{%s}' % deafult_label}
+        entries_labels = {}
+        for entry in entries:
+            try:
+                sensor = self.payload[entry]['Sensor ID'].split()
+                sensor_id = str(int(re.sub(r'[\(\)]', '', sensor[-1]), 0))
+                metric_label = [deafult_label,
+                                'sensor="%s"' % (sensor[0] + sensor_id)]
+                entries_labels[entry] = '{%s}' % ','.join(metric_label)
+            except Exception as e:
+                print(e)
+        return entries_labels
+
+    def _extract_values(self, entries):
+        entries_values = {}
+        for entry in entries:
+            try:
+                no_values = ['No Reading', 'Disabled']
+                if self.payload[entry]['Sensor Reading'] in no_values:
+                    entries_values[entry] = None
+                else:
+                    values = self.payload[entry]['Sensor Reading'].split()
+                    if len(values) > 1:
+                        entries_values[entry] = values[0]
+                    elif values[0] == "0h":
+                        entries_values[entry] = 0
+                    else:
+                        entries_values[entry] = 1
+            except Exception as e:
+                print(e)
+        return entries_values
+
+    def prometheus_format(self):
+        prometheus_info = []
+        available_metrics = self._metric_names()
+
+        for metric in available_metrics:
+            prometheus_info.append(add_prometheus_type(metric, 'gauge'))
+            entries = available_metrics[metric]
+            labels = self._extract_labels(entries)
+            values = self._extract_values(entries)
+            for e in entries:
+                if values[e] is None:
+                    continue
+                prometheus_info.append("%s%s %s" % (metric, labels[e],
+                                                    values[e]))
+        return '\n'.join(prometheus_info)

ironic_prometheus_exporter/parsers/manager.py

@@ -0,0 +1,26 @@
+from ironic_prometheus_exporter.parsers import ipmi
+
+
+class ParserManager(object):
+
+    def __init__(self, data):
+
+        node_name = data['payload']['node_name']
+        payload = data['payload']['payload']
+        self.ipmi_objects = [
+            ipmi.Management(payload['Management'], node_name),
+            ipmi.Temperature(payload['Temperature'], node_name),
+            ipmi.System(payload['System'], node_name),
+            ipmi.Current(payload['Current'], node_name),
+            ipmi.Version(payload['Version'], node_name),
+            ipmi.Memory(payload['Memory'], node_name),
+            ipmi.Power(payload['Power'], node_name),
+            ipmi.Watchdog2(payload['Watchdog2'], node_name),
+            ipmi.Fan(payload['Fan'], node_name)
+        ]
+
+    def merge_information(self):
+        info = ''
+        for obj in self.ipmi_objects:
+            info += obj.prometheus_format() + '\n'
+        return info.rstrip('\n')

ironic_prometheus_exporter/tests/test_driver.py

@@ -1,5 +1,8 @@
+import json
+import os
 import oslo_messaging
 
+from ironic_prometheus_exporter.messaging import PrometheusFileDriver
 from oslo_messaging.tests import utils as test_utils
 
 
@@ -8,12 +11,65 @@ class TestPrometheusFileNotifier(test_utils.BaseTestCase):
     def setUp(self):
         super(TestPrometheusFileNotifier, self).setUp()
 
-    def test_notifier(self):
-        self.config(file_path='/tmp/ironic_prometheus_exporter/test.json',
+    def test_instanciate(self):
+        self.config(files_dir='/tmp/ironic_prometheus_exporter',
                     group='oslo_messaging_notifications')
         transport = oslo_messaging.get_notification_transport(self.conf)
         oslo_messaging.Notifier(transport, driver='prometheus_exporter',
                                 topics=['my_topics'])
 
-        self.assertEqual(self.conf.oslo_messaging_notifications.file_path,
-                         "/tmp/ironic_prometheus_exporter/test.json")
+        self.assertEqual(self.conf.oslo_messaging_notifications.files_dir,
+                         "/tmp/ironic_prometheus_exporter")
+        self.assertTrue(os.path.isdir(
+            self.conf.oslo_messaging_notifications.files_dir))
+
+    def test_messages_from_same_node(self):
+        self.config(files_dir='/tmp/ironic_prometheus_exporter',
+                    group='oslo_messaging_notifications')
+        transport = oslo_messaging.get_notification_transport(self.conf)
+        driver = PrometheusFileDriver(self.conf, None, transport)
+
+        msg1 = json.load(open('./ironic_prometheus_exporter/tests/data.json'))
+        node1 = msg1['payload']['node_name']
+        msg2 = json.load(open('./ironic_prometheus_exporter/tests/data2.json'))
+        # Override data2 node_name
+        msg2['payload']['node_name'] = node1
+        node2 = msg2['payload']['node_name']
+        self.assertNotEqual(msg1['payload']['timestamp'],
+                            msg2['payload']['timestamp'])
+
+        driver.notify(None, msg1, 'info', 0)
+        driver.notify(None, msg2, 'info', 0)
+
+        DIR = self.conf.oslo_messaging_notifications.files_dir
+        all_files = [name for name in os.listdir(DIR)
+                     if os.path.isfile(os.path.join(DIR, name))]
+        self.assertEqual(node1, node2)
+        self.assertEqual(len(all_files), 1)
+        self.assertTrue(node1 and node2 in all_files)
+        for f in all_files:
+            os.remove(os.path.join(DIR, f))
+
+    def test_messages_from_different_nodes(self):
+        self.config(files_dir='/tmp/ironic_prometheus_exporter',
+                    group='oslo_messaging_notifications')
+        transport = oslo_messaging.get_notification_transport(self.conf)
+        driver = PrometheusFileDriver(self.conf, None, transport)
+
+        msg1 = json.load(open('./ironic_prometheus_exporter/tests/data.json'))
+        node1 = msg1['payload']['node_name']
+        msg2 = json.load(open('./ironic_prometheus_exporter/tests/data2.json'))
+        node2 = msg2['payload']['node_name']
+        self.assertNotEqual(msg1['payload']['timestamp'],
+                            msg2['payload']['timestamp'])
+
+        driver.notify(None, msg1, 'info', 0)
+        driver.notify(None, msg2, 'info', 0)
+
+        DIR = self.conf.oslo_messaging_notifications.files_dir
+        all_files = [name for name in os.listdir(DIR)
+                     if os.path.isfile(os.path.join(DIR, name))]
+        self.assertEqual(len(all_files), 2)
+        self.assertTrue(node1 and node2 in all_files)
+        for f in all_files:
+            os.remove(os.path.join(DIR, f))

ironic_prometheus_exporter/tests/test_ipmi_parser.py

@@ -0,0 +1,124 @@
+import json
+import unittest
+
+from ironic_prometheus_exporter.parsers import ipmi, manager
+
+
+DATA = json.load(open('./ironic_prometheus_exporter/tests/data.json'))
+
+
+class TestPayloadManagementParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Management']
+
+    def test_parser(self):
+        management_parser = ipmi.Management(self.payload, self.node_name)
+        metrics = management_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 2)
+
+
+class TestPayloadTemperatureParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Temperature']
+
+    def test_parser(self):
+        temperature_parser = ipmi.Temperature(self.payload, self.node_name)
+        metrics = temperature_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 7)
+
+
+class TestPayloadSystemParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['System']
+
+    def test_parser(self):
+        system_parser = ipmi.System(self.payload, self.node_name)
+        metrics = system_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 3)
+
+
+class TestPayloadCurrentParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Current']
+
+    def test_parser(self):
+        current_parser = ipmi.Current(self.payload, self.node_name)
+        metrics = current_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 5)
+
+
+class TestPayloadVersionParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Version']
+
+    def test_parser(self):
+        version_parser = ipmi.Version(self.payload, self.node_name)
+        metrics = version_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 5)
+
+
+class TestPayloadMemoryParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Memory']
+
+    def test_parser(self):
+        memory_parser = ipmi.Memory(self.payload, self.node_name)
+        metrics = memory_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 18)
+
+
+class TestPayloadPowerParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Power']
+
+    def test_parser(self):
+        power_parser = ipmi.Power(self.payload, self.node_name)
+        metrics = power_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 4)
+
+
+class TestPayloadWatchdog2Parser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Watchdog2']
+
+    def test_parser(self):
+        watchdog_parser = ipmi.Watchdog2(self.payload, self.node_name)
+        metrics = watchdog_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 4)
+
+
+class TestPayloadFanParser(unittest.TestCase):
+
+    def setUp(self):
+        self.node_name = DATA['payload']['node_name']
+        self.payload = DATA['payload']['payload']['Fan']
+
+    def test_parser(self):
+        fan_parser = ipmi.Fan(self.payload, self.node_name)
+        metrics = fan_parser.prometheus_format()
+        self.assertEqual(len(metrics.split('\n')), 19)
+
+
+class TestIpmiManager(unittest.TestCase):
+
+    def test_manager(self):
+        node_manager = manager.ParserManager(DATA)
+        node_metrics = node_manager.merge_information()
+        print(node_metrics.split('\n'))
+        self.assertEqual(len(node_metrics.split('\n')), 67)

requirements.txt

@@ -1,5 +1,3 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-flake8
 stevedore>=1.20.0 # Apache-2.0
-oslo.messaging!=9.0.0 # Apache-2.0
-stestr>=2.0.0 # Apache-2.0
+oslo.messaging==9.4.0 # Apache-2.0

setup.cfg

@@ -24,3 +24,4 @@ packages =
 [entry_points]
 oslo.messaging.notify.drivers =
     prometheus_exporter = ironic_prometheus_exporter.messaging:PrometheusFileDriver
+    file_exporter = ironic_prometheus_exporter.messaging:SimpleFileDriver

test-requirements.txt

@@ -0,0 +1,3 @@
+flake8
+stestr>=2.0.0 # Apache-2.0
+oslotest>=3.2.0 # Apache-2.0

tox.ini

@@ -9,7 +9,9 @@ install_command = pip install {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
    PYTHONWARNINGS=default::DeprecationWarning
-deps  = -r{toxinidir}/requirements.txt
+deps  =
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt
 commands = stestr run {posargs}
 
 [testenv:pep8]