Merge "Add libvirtd_exporter"

chart/test-values.yaml

@@ -15,4 +15,4 @@ configMap:
     configDir: /etc/heat
   magnum:
     configDir: /etc/magnum
-  chronyd: {}
+  chronyd: {}

config/samples/operator-config.yaml

@@ -19,4 +19,4 @@ data:
           api-cfn: "h-api-cfn.vexxhost.com"
     magnum:
       configDir: /etc/magnum
-    chronyd: {}
+    chronyd: {}

openstack_operator/libvirtd_exporter.py

@@ -0,0 +1,34 @@
+# Copyright 2020 VEXXHOST, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""libvirtd-exporter Operator
+
+This module maintains the operator for libvirtd-exporter,
+it takes care of creating the appropriate daemonset
+"""
+
+
+from openstack_operator import utils
+
+
+def create_or_resume(spec, **_):
+    """Create and re-sync a libvirtd-exporter instance
+
+    This function is called when a new resource is created but also when we
+    start the service up for the first time.
+    """
+
+    utils.create_or_update('libvirtd_exporter/daemonset.yml.j2',
+                           spec=spec)
+    utils.create_or_update('libvirtd_exporter/podmonitor.yml.j2')

openstack_operator/operator.py

@@ -28,6 +28,7 @@ from openstack_operator import glance
 from openstack_operator import heat
 from openstack_operator import horizon
 from openstack_operator import keystone
+from openstack_operator import libvirtd_exporter
 from openstack_operator import magnum
 from openstack_operator import utils
 
@@ -67,7 +68,17 @@ def deploy(name, namespace, new, **_):
         glance.create_or_resume("glance", config["glance"])
     if "magnum" in config:
         magnum.create_or_resume("magnum", config["magnum"])
-    if "chronyd" in config:
-        chronyd.create_or_resume(config["chronyd"])
     if "ceilometer" in config:
         ceilometer.create_or_resume(config["ceilometer"])
+
+    if "chronyd" in config:
+        spec = config["chronyd"]
+    else:
+        spec = {}
+    chronyd.create_or_resume(spec)
+
+    if "libvirtd-exporter" in config:
+        spec = config["libvirtd-exporter"]
+    else:
+        spec = {}
+    libvirtd_exporter.create_or_resume(spec)

openstack_operator/templates/libvirtd_exporter/daemonset.yml.j2

@@ -0,0 +1,65 @@
+---
+# Copyright 2020 VEXXHOST, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: libvirtd-exporter
+  namespace: openstack
+  labels:
+    {{ labels("libvirtd-exporter", "libvirtd-exporter") | indent(4) }}
+spec:
+  selector:
+    matchLabels:
+      {{ labels("libvirtd-exporter", "libvirtd-exporter") | indent(6) }}
+  template:
+    metadata:
+      labels:
+        {{ labels("libvirtd-exporter", "libvirtd-exporter") | indent(8) }}
+    spec:
+      containers:
+      - name: main
+        image: vexxhost/libvirtd-exporter:latest
+        imagePullPolicy: Always
+        ports:
+        - name: metrics
+          protocol: TCP
+          containerPort: 9474
+        livenessProbe:
+          httpGet:
+            path: /
+            port: metrics
+        readinessProbe:
+          httpGet:
+            path: /
+            port: metrics
+        resources:
+          limits:
+            cpu: 500m
+            ephemeral-storage: 100M
+            memory: 256M
+          requests:
+            cpu: 250m
+            ephemeral-storage: 100M
+            memory: 128M
+        volumeMounts:
+        - mountPath: /var/run/libvirt
+          name: sock
+      volumes:
+      - name: sock
+        hostPath:
+          path: /var/run/libvirt
+      nodeSelector:
+        node-role.openstack.org: "compute"

openstack_operator/templates/libvirtd_exporter/podmonitor.yml.j2

@@ -0,0 +1,29 @@
+---
+# Copyright 2020 VEXXHOST, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: libvirtd-exporter
+  namespace: openstack
+  labels:
+    {{ labels("libvirtd-exporter", "libvirtd-exporter") | indent(4) }}
+spec:
+  podMetricsEndpoints:
+  - path: /metrics
+    port: metrics
+  selector:
+    matchLabels:
+      {{ labels("libvirtd-exporter", "libvirtd-exporter") | indent(6) }}

openstack_operator/tests/unit/base.py

@@ -47,8 +47,11 @@ class KubernetesObjectTestCase(testtools.TestCase):
             with open(config_path) as config_fd:
                 sample = yaml.load(config_fd, Loader=yaml.FullLoader)
             name = sample['metadata']['name']
-            spec = utils.to_dict(
-                sample['data']['operator-config.yaml'])[cls.RELEASE_TYPE]
+            config = utils.to_dict(sample['data']['operator-config.yaml'])
+            if cls.RELEASE_TYPE in config:
+                spec = config[cls.RELEASE_TYPE]
+            else:
+                spec = {}
             cls.object = utils.render_template(cls.TEMPLATE_FILE,
                                                name=cls.RELEASE_TYPE,
                                                spec=spec,