Initial api response time and hypervisor metrics

2026-03-24 17:44:42 +00:00 · 2020-11-19 07:06:44 -05:00
commit b5ae6a0088
7 changed files with 445 additions and 0 deletions
--- a/.python-version
+++ b/.python-version
@@ -0,0 +1 @@
+3.8.6
--- a/11
+++ b/11
@@ -0,0 +1,11 @@
+FROM python:3.8
+RUN pip install pipenv
+RUN mkdir /python
+### CACHE PIP DEPENDENCIES
+COPY Pipfile* /tmp/
+RUN cd /tmp && pipenv lock --requirements > requirements.txt
+RUN pip install -r /tmp/requirements.txt
+###
+WORKDIR /python
+COPY . .
+CMD ["python", "/python/openstack_exporter.py"]
--- a/12
+++ b/12
@@ -0,0 +1,12 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+python-openstacksdk = "*"
+prometheus_client = "*"
+cryptography = "*"
+
+[requires]
+python_version = "3.8"
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -0,0 +1,308 @@
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+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==1.15.0"
+        },
+        "stevedore": {
+            "hashes": [
+                "sha256:5e1ab03eaae06ef6ce23859402de785f08d97780ed774948ef16c4652c41bc62",
+                "sha256:f845868b3a3a77a2489d226568abe7328b5c2d4f6a011cc759dfa99144a521f0"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==3.2.2"
+        },
+        "urllib3": {
+            "hashes": [
+                "sha256:19188f96923873c92ccb987120ec4acaa12f0461fa9ce5d3d0772bc965a39e08",
+                "sha256:d8ff90d979214d7b4f8ce956e80f4028fc6860e4431f731ea4a8c08f23f99473"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
+            "version": "==1.26.2"
+        }
+    },
+    "develop": {}
+}
--- a/README.md
+++ b/README.md
@@ -0,0 +1,16 @@
+# openstack_exporter
+This is a prometheus exporter for Openstack
+
+# Usage
+### With Docker
+This script will forward all "OS_" variables to the container and start the container on port 8000
+```
+bash run-with-docker.sh
+```
+
+### With Python
+Need Python 3.8 and pipenv
+```
+pipenv sync
+pipenv run python openstack_exporter.py
+```
--- a/openstack_exporter.py
+++ b/openstack_exporter.py
@@ -0,0 +1,91 @@
+import prometheus_client as prom
+import os
+import time
+import traceback
+import openstack
+import datetime
+
+def openstack_connection():
+    conn = openstack.connect(
+        auth_url=os.environ["OS_AUTH_URL"],
+        project_name=os.environ["OS_PROJECT_NAME"],
+        username=os.environ["OS_USERNAME"],
+        password=os.environ["OS_PASSWORD"],
+        user_domain=os.environ["OS_USER_DOMAIN_NAME"],
+        # cacert=os.environ["OS_CACERT"],
+    )
+    return conn
+
+def generate_hypervisor_metrics(connection, hypervisor_running_vms, hypervisor_used_ram_mb, hypervisor_total_ram_mb, hypervisor_free_cpus, hypervisor_total_cpus, hypervisor_enabled, hypervisor_up):
+    for hypervisor in connection.list_hypervisors():
+        print(f'Getting hypervisor {hypervisor.name} metrics.')
+        hypervisor_running_vms.labels(hypervisor.name).set(hypervisor.running_vms)
+        hypervisor_used_ram_mb.labels(hypervisor.name).set(hypervisor.memory_used)
+        hypervisor_total_ram_mb.labels(hypervisor.name).set(hypervisor.memory_size)
+        hypervisor_free_cpus.labels(hypervisor.name).set(hypervisor.vcpus_used)
+        hypervisor_total_cpus.labels(hypervisor.name).set(hypervisor.vcpus)
+        if hypervisor.status == "enabled":
+            hypervisor_enabled.labels(hypervisor.name).set(1)
+        else:
+            hypervisor_enabled.labels(hypervisor.name).set(0)
+        if hypervisor.state == "up":
+            hypervisor_up.labels(hypervisor.name).set(1)
+        else:
+            hypervisor_up.labels(hypervisor.name).set(0)
+
+def generate_nova_metrics(connection,api_gauge):
+    start_time = datetime.datetime.now()
+    for server in connection.compute.servers():
+        name = server
+    end_time = datetime.datetime.now()
+    time_took = end_time - start_time
+    seconds_took = time_took.seconds
+    print(f'Nova took {seconds_took} seconds')
+    api_gauge.labels('nova').set(seconds_took)
+
+def generate_neutron_metrics(connection,api_gauge):
+    project = connection.current_project
+    start_time = datetime.datetime.now()
+    for network in connection.network.networks(project_id=project.id):
+        name = network
+    end_time = datetime.datetime.now()
+    time_took = end_time - start_time
+    seconds_took = time_took.seconds
+    print(f'Neutron took {seconds_took} seconds')
+    api_gauge.labels('neutron').set(seconds_took)
+
+def generate_cinder_metrics(connection,api_gauge):
+    start_time = datetime.datetime.now()
+    for volume in  connection.volume.volumes():
+        name = volume
+    end_time = datetime.datetime.now()
+    time_took = end_time - start_time
+    seconds_took = time_took.seconds
+    print(f'Cinder took {seconds_took} seconds')
+    api_gauge.labels('cinder').set(seconds_took)
+
+if __name__ == '__main__':
+    print("Starting server on port 8000")
+    api_metrics = prom.Gauge('openstack_api_response_seconds', 'Time for openstack api to execute.', ['api_name'])
+    hypervisor_running_vms = prom.Gauge('openstack_hypervisor_running_vms', 'Number of VMs running on this hypervisor.',['hypervisor_hostname'])
+    hypervisor_used_ram_mb = prom.Gauge('openstack_hypervisor_used_ram_mb', 'Total MB of used RAM on the hypervisor.',['hypervisor_hostname'])
+    hypervisor_total_ram_mb = prom.Gauge('openstack_hypervisor_total_ram_mb', 'Total MB of RAM on the hypervisor.',['hypervisor_hostname'])
+    hypervisor_used_cpus = prom.Gauge('openstack_hypervisor_used_cpus', 'Total VCPUs used on the hypervisor.',['hypervisor_hostname'])
+    hypervisor_total_cpus = prom.Gauge('openstack_hypervisor_total_cpus', 'Total VCPUs on the hypervisor.',['hypervisor_hostname'])
+    hypervisor_enabled = prom.Gauge('openstack_hypervisor_enabled', 'nova-compute service status on hypervisor. 1 is enabled 0 is disabled.',['hypervisor_hostname'])
+    hypervisor_up = prom.Gauge('openstack_hypervisor_up', 'nova-compute service state on hypervisor. 1 is up 0 is down.',['hypervisor_hostname'])
+
+    prom.start_http_server(8000)
+    while True:
+        try:
+            print("Gathering metrics...")
+            connection = openstack_connection()
+            generate_nova_metrics(connection,api_metrics)
+            generate_neutron_metrics(connection,api_metrics)
+            generate_cinder_metrics(connection,api_metrics)
+            generate_hypervisor_metrics(connection, hypervisor_running_vms, hypervisor_used_ram_mb, hypervisor_total_ram_mb, hypervisor_used_cpus, hypervisor_total_cpus, hypervisor_enabled, hypervisor_up)
+            connection.close()
+            print("Waiting 30 seconds to gather more metrics.")
+            time.sleep(30)
+        except Exception:
+            print(traceback.print_exc())
--- a/run-with-docker.sh
+++ b/run-with-docker.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+OPENSTACK_VARS=""
+for var in $(env | grep OS_); do
+  OPENSTACK_VARS+="-e $var ";
+done
+docker run -d -p 8000:8000 $OPENSTACK_VARS jcwimer/openstack_exporter