Grafana: Provision to add customized HomePage

This code will help to add any customized dashboard as a Home Page for
Grafana. The add_home_dashboard script will be executed after the
Grafana is deployed which sets a new Dashboard(OSH Home) as a landing
Page for a specific Organization.

Change-Id: I32b6b9cad4eaefe7d153cae797d3b3143be5c49b

grafana/templates/bin/_add-home-dashboard.sh.tpl

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# Copyright 2020 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.
+
+set -xe
+
+home_dashboard_id=$(curl -K- <<< "--user ${GF_SECURITY_ADMIN_USER}:${GF_SECURITY_ADMIN_PASSWORD}" -XGET "${GRAFANA_URI}api/search?query=OSH%20Home" | sed 's/\[{.id":"*\([0-9a-zA-Z]*\)*,*.*}[]]/\1/')
+
+echo $home_dashboard_id
+
+if [ $home_dashboard_id == "[]" ]
+then
+    echo "Failed. Verify Home Dashboard is present in Grafana"
+else
+#Set Customized Home Dashboard id as Org preference
+  curl -K- <<< "--user ${GF_SECURITY_ADMIN_USER}:${GF_SECURITY_ADMIN_PASSWORD}" \
+   -XPUT "${GRAFANA_URI}api/org/preferences"  -H "Content-Type: application/json" \
+   -d "{\"homeDashboardId\": $home_dashboard_id}"
+  echo "Successful"
+fi

grafana/templates/configmap-bin.yaml

@@ -32,6 +32,8 @@ data:
 {{ tuple "bin/_grafana.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
   selenium-tests.py: |
 {{ tuple "bin/_selenium-tests.py.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
+  add-home-dashboard.sh: |
+{{ tuple "bin/_add-home-dashboard.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
   set-admin-password.sh: |
 {{ tuple "bin/_set-admin-password.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
 {{- end }}

grafana/templates/job-add-home-dashboard.yaml

@@ -0,0 +1,74 @@
+{{/*
+Copyright 2020 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_add_home_dashboard }}
+{{- $envAll := . }}
+
+{{- $serviceAccountName := "add-home-dashboard" }}
+{{ tuple $envAll "add_home_dashboard" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: grafana-add-home-dashboard
+  annotations:
+    {{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
+spec:
+  template:
+    metadata:
+      labels:
+{{ tuple $envAll "grafana" "add_home_dashboard" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
+    spec:
+      serviceAccountName: {{ $serviceAccountName }}
+      restartPolicy: OnFailure
+      nodeSelector:
+        {{ .Values.labels.job.node_selector_key }}: {{ .Values.labels.job.node_selector_value | quote }}
+      initContainers:
+{{ tuple $envAll "add_home_dashboard" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
+      containers:
+        - name: add-home-dashboard
+{{ tuple $envAll "add_home_dashboard" | include "helm-toolkit.snippets.image" | indent 10 }}
+{{ tuple $envAll $envAll.Values.pod.resources.jobs.add_home_dashboard | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
+          env:
+            - name: GF_SECURITY_ADMIN_USER
+              valueFrom:
+                secretKeyRef:
+                  name: grafana-admin-creds
+                  key: GRAFANA_ADMIN_USERNAME
+            - name: GF_SECURITY_ADMIN_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: grafana-admin-creds
+                  key: GRAFANA_ADMIN_PASSWORD
+            - name: GRAFANA_URI
+              value: {{ tuple "grafana" "internal" "grafana" . | include "helm-toolkit.endpoints.keystone_endpoint_uri_lookup" }}
+          command:
+            - /tmp/add-home-dashboard.sh
+          volumeMounts:
+            - name: pod-tmp
+              mountPath: /tmp
+            - name: grafana-bin
+              mountPath: /tmp/add-home-dashboard.sh
+              subPath: add-home-dashboard.sh
+              readOnly: true
+      volumes:
+        - name: pod-tmp
+          emptyDir: {}
+        - name: grafana-bin
+          configMap:
+            name: grafana-bin
+            defaultMode: 0555
+{{- end }}

grafana/values.yaml

@@ -23,6 +23,7 @@ images:
     db_init: docker.io/openstackhelm/heat:newton-ubuntu_xenial
     grafana_db_session_sync: docker.io/openstackhelm/heat:newton-ubuntu_xenial
     selenium_tests: docker.io/openstackhelm/osh-selenium:ubuntu_bionic-20191017
+    add_home_dashboard: docker.io/openstackhelm/heat:stein-ubuntu_bionic
     image_repo_sync: docker.io/docker:17.07.0
   pull_policy: IfNotPresent
   local_registry:
@@ -77,6 +78,13 @@ pod:
         grafana_set_admin_password:
           allowPrivilegeEscalation: false
           readOnlyRootFilesystem: true
+    add_home_dashboard:
+      pod:
+        runAsUser: 104
+      container:
+        grafana_set_admin_password:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
     test:
       pod:
         runAsUser: 104
@@ -154,6 +162,13 @@ pod:
         limits:
           memory: "1024Mi"
           cpu: "2000m"
+      add_home_dashboard:
+        requests:
+          memory: "128Mi"
+          cpu: "100m"
+        limits:
+          memory: "1024Mi"
+          cpu: "2000m"
       tests:
         requests:
           memory: "128Mi"
@@ -329,6 +344,10 @@ dependencies:
       services:
         - endpoint: internal
           service: grafana
+    add_home_dashboard:
+      services:
+        - endpoint: internal
+          service: grafana
 
 network:
   grafana:
@@ -375,6 +394,7 @@ manifests:
   job_db_session_sync: true
   job_image_repo_sync: true
   job_set_admin_user: true
+  job_add_home_dashboard: false
   network_policy: false
   secret_db: true
   secret_db_session: true

grafana/values_overrides/home_dashboard.yaml

@@ -0,0 +1,94 @@
+# This overrides file provides a reference for dashboards for
+# customized OSH Welcome Page
+conf:
+  dashboards:
+    home_dashboard:
+      annotations:
+        list:
+        - builtIn: 1
+          datasource: "-- Grafana --"
+          enable: true
+          hide: true
+          iconColor: rgba(0, 211, 255, 1)
+          name: Annotations & Alerts
+          type: dashboard
+      editable: false
+      gnetId:
+      graphTooltip: 0
+      id: 51
+      links: []
+      panels:
+      - content: |-
+          <div class="text-center dashboard-header">
+            <span>OSH Home Dashboard</span>
+          </div>
+        editable: true
+        gridPos:
+          h: 3
+          w: 24
+          x: 0
+          'y': 0
+        id: 1
+        links: []
+        mode: html
+        options: {}
+        style: {}
+        title: ''
+        transparent: true
+        type: text
+      - folderId: 0
+        gridPos:
+          h: 10
+          w: 13
+          x: 6
+          'y': 3
+        headings: true
+        id: 3
+        limit: 30
+        links: []
+        options: {}
+        query: ''
+        recent: true
+        search: false
+        starred: true
+        tags: []
+        title: ''
+        type: dashlist
+      schemaVersion: 18
+      style: dark
+      tags: []
+      templating:
+        list: []
+      time:
+        from: now-1h
+        to: now
+      timepicker:
+        hidden: true
+        refresh_intervals:
+        - 5s
+        - 10s
+        - 30s
+        - 1m
+        - 5m
+        - 15m
+        - 30m
+        - 1h
+        - 2h
+        - 1d
+        time_options:
+        - 5m
+        - 15m
+        - 1h
+        - 6h
+        - 12h
+        - 24h
+        - 2d
+        - 7d
+        - 30d
+        type: timepicker
+      timezone: browser
+      title: OSH Home
+      version: 3
+
+manifests:
+  job_add_home_dashboard: true

tools/deployment/osh-infra-monitoring/110-grafana.sh

@@ -19,7 +19,7 @@ set -xe
 #NOTE: Lint and package chart
 make grafana
 
-FEATURE_GATES="calico,ceph,containers,coredns,elasticsearch,kubernetes,nginx,nodes,openstack,prometheus,apparmor"
+FEATURE_GATES="calico,ceph,containers,coredns,elasticsearch,kubernetes,nginx,nodes,openstack,prometheus,home_dashboard,apparmor"
 : ${OSH_INFRA_EXTRA_HELM_ARGS_GRAFANA:="$({ ./tools/deployment/common/get-values-overrides.sh grafana;} 2> /dev/null)"}
 
 #NOTE: Deploy command