Nagios Chart

This adds the nagios chart to osh-infra to provide additional monitoring functionality. It uses helper functions to consume yaml definitions for services, commands, hosts and hostgroups to generate the required configurations for those entities in nagios's configuration Change-Id: I6238bb8cb1e5c8dc48594ddea50693f3e7b0a176
2017-11-28 13:40:03 -06:00
parent 3c66523aab
commit 99befc2484
13 changed files with 740 additions and 0 deletions
--- a/nagios/templates/_helpers.tpl
+++ b/nagios/templates/_helpers.tpl
@@ -0,0 +1,41 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+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.
+*/}}
+
+# This function defines commands, hosts, hostgroups, and services for nagios by
+# consuming yaml trees to define the fields for these objects
+
+{{- define "nagios.object_definition" -}}
+{{- $type := index . 0 }}
+{{- $objects := index . 1 }}
+{{- range $object := $objects }}
+{{ range $config := $object }}
+define {{ $type }} {
+{{- range $key, $value := $config}}
+  {{ $key }} {{ $value }}
+{{- end }}
+}
+{{end -}}
+{{- end -}}
+{{- end -}}
+
+{{- define "nagios.to_nagios_conf" -}}
+{{- range $key, $value := . -}}
+{{ if eq $key "cfg_file" }}
+{{ range $file := $value -}}
+{{ $key }}={{ $file }}
+{{ end }}
+{{- else }}
+{{ $key }}={{ $value }}
+{{- end }}
+{{- end -}}
+{{- end -}}
--- a/nagios/templates/configmap-bin.yaml
+++ b/nagios/templates/configmap-bin.yaml
@@ -0,0 +1,27 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.configmap_bin }}
+{{- $envAll := . }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nagios-bin
+data:
+  image-repo-sync.sh: |+
+{{- include "helm-toolkit.scripts.image_repo_sync" . | indent 4 }}
+{{- end }}
--- a/nagios/templates/configmap-etc.yaml
+++ b/nagios/templates/configmap-etc.yaml
@@ -0,0 +1,32 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.configmap_etc }}
+{{- $envAll := . }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nagios-etc
+data:
+  nagios.cfg: |+
+{{ include "nagios.to_nagios_conf" .Values.conf.nagios.config | indent 4 }}
+  nagios_objects.cfg: |+
+{{- tuple "host" .Values.conf.nagios.hosts | include "nagios.object_definition" | indent 4 }}
+{{- tuple "hostgroup" .Values.conf.nagios.host_groups | include "nagios.object_definition" | indent 4 }}
+{{- tuple "command" .Values.conf.nagios.commands | include "nagios.object_definition" | indent 4 }}
+{{- tuple "service" .Values.conf.nagios.services | include "nagios.object_definition" | indent 4 }}
+{{- end }}
--- a/nagios/templates/deployment.yaml
+++ b/nagios/templates/deployment.yaml
@@ -0,0 +1,108 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.deployment }}
+{{- $envAll := . }}
+{{- if .Values.images.local_registry.active -}}
+{{- $_ := set .Values "pod_dependency" dict -}}
+{{- $_ := include "helm-toolkit.utils.merge" (tuple .Values.pod_dependency .Values.dependencies.static.nagios .Values.dependencies.dynamic.common.local_image_registry) -}}
+{{- else -}}
+{{- $_ := set .Values "pod_dependency" .Values.dependencies.static.nagios -}}
+{{- end -}}
+
+{{- $serviceAccountName := "nagios" }}
+{{ tuple $envAll $envAll.Values.pod_dependency $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  name: {{ $serviceAccountName }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - nodes
+      - nodes/proxy
+      - services
+      - endpoints
+      - pods
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - configmaps
+    verbs:
+      - get
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ $serviceAccountName }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ $serviceAccountName }}
+    namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: ClusterRole
+  name: {{ $serviceAccountName }}
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: nagios
+spec:
+  replicas: {{ .Values.pod.replicas.nagios }}
+{{ tuple $envAll | include "helm-toolkit.snippets.kubernetes_upgrades_deployment" | indent 2 }}
+  template:
+    metadata:
+      labels:
+{{ tuple $envAll "nagios" "monitoring" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
+    spec:
+      serviceAccountName: {{ $serviceAccountName }}
+      nodeSelector:
+        {{ .Values.labels.node_selector_key }}: {{ .Values.labels.node_selector_value }}
+      terminationGracePeriodSeconds: {{ .Values.pod.lifecycle.termination_grace_period.nagios.timeout | default "30" }}
+      initContainers:
+{{ tuple $envAll .Values.pod_dependency list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+      containers:
+        - name: nagios
+{{ tuple $envAll "nagios" | include "helm-toolkit.snippets.image" | indent 10 }}
+{{ tuple $envAll $envAll.Values.pod.resources.nagios | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
+          ports:
+            - name: metrics
+              containerPort: {{ .Values.network.nagios.port }}
+          env:
+            - name: PROMETHEUS_SERVICE
+              value: {{ tuple "monitoring" "internal" "api" . | include "helm-toolkit.endpoints.host_and_port_endpoint_uri_lookup" }}
+          volumeMounts:
+            - name: nagios-etc
+              mountPath: /opt/nagios/etc/nagios.cfg
+              subPath: nagios.cfg
+              readOnly: true
+            - name: nagios-etc
+              mountPath: /opt/nagios/etc/nagios_objects.cfg
+              subPath: nagios_objects.cfg
+              readOnly: true
+      volumes:
+        - name: nagios-etc
+          configMap:
+            name: nagios-etc
+            defaultMode: 0444
+{{- end }}
--- a/nagios/templates/etc/_nagios.cfg.tpl
+++ b/nagios/templates/etc/_nagios.cfg.tpl
@@ -0,0 +1,3 @@
+# Nagios Configuration File
+
+{{ .Values.conf.nagios.cfg }}
--- a/nagios/templates/ingress-nagios.yaml
+++ b/nagios/templates/ingress-nagios.yaml
@@ -0,0 +1,60 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.ingress }}
+{{- $envAll := . }}
+{{- if .Values.network.nagios.ingress.public }}
+{{- $backendServiceType := "nagios" }}
+{{- $backendPort := "n-metrics" }}
+{{- $ingressName := tuple $backendServiceType "public" $envAll | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
+{{- $backendName := tuple $backendServiceType "internal" $envAll | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
+{{- $hostName := tuple $backendServiceType "public" $envAll | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
+{{- $hostNameNamespaced := tuple $backendServiceType "public" $envAll | include "helm-toolkit.endpoints.hostname_namespaced_endpoint_lookup" }}
+{{- $hostNameFull := tuple $backendServiceType "public" $envAll | include "helm-toolkit.endpoints.hostname_fqdn_endpoint_lookup" }}
+---
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ $ingressName }}
+  annotations:
+    kubernetes.io/ingress.class: "nginx"
+    ingress.kubernetes.io/rewrite-target: /
+    ingress.kubernetes.io/proxy-body-size: {{ .Values.network.prometheus.ingress.proxy_body_size }}
+spec:
+  rules:
+{{ if ne $hostNameNamespaced $hostNameFull }}
+{{- range $key1, $vHost := tuple $hostName $hostNameNamespaced $hostNameFull }}
+  - host: {{ $vHost }}
+    http:
+      paths:
+      - path: /
+        backend:
+          serviceName: {{ $backendName }}
+          servicePort: {{ $backendPort }}
+{{- end }}
+{{- else }}
+{{- range $key1, $vHost := tuple $hostName $hostNameNamespaced }}
+  - host: {{ $vHost }}
+    http:
+      paths:
+      - path: /
+        backend:
+          serviceName: {{ $backendName }}
+          servicePort: {{ $backendPort }}
+{{- end }}
+{{- end }}
+{{- end }}
+{{- end }}
--- a/nagios/templates/job-image-repo-sync.yaml
+++ b/nagios/templates/job-image-repo-sync.yaml
@@ -0,0 +1,68 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.job_image_repo_sync }}
+{{- $envAll := . }}
+{{- if .Values.images.local_registry.active -}}
+{{- $_ := set .Values "pod_dependency" .Values.dependencies.static.image_repo_sync -}}
+
+{{- $serviceAccountName := "nagios-image-repo-sync" }}
+{{ tuple $envAll $envAll.Values.pod_dependency $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: nagios-image-repo-sync
+spec:
+  template:
+    metadata:
+      labels:
+{{ tuple $envAll "nagios" "image-repo-sync" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
+    spec:
+      serviceAccountName: {{ $serviceAccountName }}
+      restartPolicy: OnFailure
+      nodeSelector:
+        {{ .Values.labels.node_selector_key }}: {{ .Values.labels.node_selector_value }}
+      initContainers:
+{{ tuple $envAll .Values.pod_dependency list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container"  | indent 8 }}
+      containers:
+        - name: image-repo-sync
+{{ tuple $envAll "image_repo_sync" | include "helm-toolkit.snippets.image" | indent 10 }}
+{{ tuple $envAll $envAll.Values.pod.resources.jobs.image_repo_sync | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
+          env:
+            - name: LOCAL_REPO
+              value: "{{ tuple "local_image_registry" "node" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}:{{ tuple "local_image_registry" "node" "registry" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}"
+            - name: IMAGE_SYNC_LIST
+              value: "{{ include "helm-toolkit.utils.image_sync_list" . }}"
+          command:
+            - /tmp/image-repo-sync.sh
+          volumeMounts:
+            - name: nagios-bin
+              mountPath: /tmp/image-repo-sync.sh
+              subPath: image-repo-sync.sh
+              readOnly: true
+            - name: docker-socket
+              mountPath: /var/run/docker.sock
+      volumes:
+        - name: nagios-bin
+          configMap:
+            name: nagios-bin
+            defaultMode: 0555
+        - name: docker-socket
+          hostPath:
+            path: /var/run/docker.sock
+{{- end }}
+{{- end }}
--- a/nagios/templates/service-ingress-nagios.yaml
+++ b/nagios/templates/service-ingress-nagios.yaml
@@ -0,0 +1,32 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.service_ingress }}
+{{- if .Values.network.nagios.ingress.public }}
+{{- $envAll := . }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ tuple "nagios" "public" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
+spec:
+  ports:
+  - name: http
+    port: 80
+  selector:
+    app: ingress-api
+{{- end }}
+{{- end }}
--- a/nagios/templates/service.yaml
+++ b/nagios/templates/service.yaml
@@ -0,0 +1,36 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+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.
+*/}}
+
+{{- if .Values.manifests.service }}
+{{- $envAll := . }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ tuple "nagios" "internal" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
+spec:
+  ports:
+  - name: nagios-metrics
+    port: {{ .Values.network.nagios.port }}
+    {{ if .Values.network.nagios.node_port.enabled }}
+    nodePort: {{ .Values.network.nagios.node_port.port }}
+    {{ end }}
+  selector:
+{{ tuple $envAll "nagios" "monitoring" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
+  {{ if .Values.network.nagios.node_port.enabled }}
+  type: NodePort
+  {{ end }}
+{{- end }}