Added MetalLB ServiceMonitor

metallb.jsonnet

@@ -0,0 +1,58 @@
+local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
+
+local kp = (import 'kube-prometheus/kube-prometheus.libsonnet') +
+           (import 'image_sources_versions.jsonnet') +
+  {
+  _config+:: {
+    namespace: 'monitoring',
+  },
+
+  metallb+:: {
+    serviceMonitor:
+      {
+        apiVersion: 'monitoring.coreos.com/v1',
+        kind: 'ServiceMonitor',
+        metadata: {
+          name: 'metallb',
+          namespace: $._config.namespace,
+          labels: {
+            'k8s-app': 'metallb-controller',
+          },
+        },
+        spec: {
+          jobLabel: 'k8s-app',
+          selector: {
+            matchLabels: {
+              'k8s-app': 'metallb-controller',
+            },
+          },
+          endpoints: [
+            {
+              port: 'http',
+              scheme: 'http',
+              interval: '30s',
+            },
+          ],
+          namespaceSelector: {
+              matchNames: [
+                'metallb-system',
+              ]
+            },
+
+        },
+      },
+
+    service:
+      local service = k.core.v1.service;
+      local servicePort = k.core.v1.service.mixin.spec.portsType;
+
+      local metallbPort = servicePort.newNamed('http', 7472, 7472);
+
+      service.new('metallb-controller', {"app": "metallb", "component": "controller"}, metallbPort) +
+      service.mixin.metadata.withNamespace('metallb-system') +
+      service.mixin.metadata.withLabels({ 'k8s-app': 'metallb-controller' }) +
+      service.mixin.spec.withClusterIp('None'),
+  },
+};
+
+{ ['metallb-' + name]: kp.metallb[name] for name in std.objectFields(kp.metallb) }