#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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 or .Values.metrics.prometheusEnabled .Values.metrics.userMetricsEnabled }}
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Release.Name }}-grafana
  labels:
    name: {{ .Release.Name }}-grafana
{{ include "openwhisk.label_boilerplate" . | indent 4 }}
spec:
  replicas: {{ .Values.grafana.replicaCount }}
  selector:
    matchLabels:
      name: {{ .Release.Name }}-grafana
  template:
    metadata:
      labels:
        name: {{ .Release.Name }}-grafana
{{ include "openwhisk.label_boilerplate" . | indent 8 }}
    spec:
      restartPolicy: {{ .Values.user_events.restartPolicy }}
      {{- if .Values.affinity.enabled }}
      affinity:
{{ include "openwhisk.affinity.core" . | indent 8 }}
{{ include "openwhisk.affinity.selfAntiAffinity" ( printf "%s-grafana" .Release.Name ) | indent 8 }}
      {{- end }}

      {{- if .Values.toleration.enabled }}
      tolerations:
{{ include "openwhisk.toleration.core" . | indent 8 }}
      {{- end }}

      initContainers:
      - name: download-dashboards
        image: "appropriate/curl:latest"
        imagePullPolicy: Always
        command: ["sh", "/etc/grafana/download_dashboards.sh"]
        resources:
          limits:
            cpu: 100m
            memory: 128Mi
        volumeMounts:
        - name: grafana-dashboard-volume
          mountPath: /var/lib/grafana/dashboards
        - name: grafana-download-volume
          mountPath: "/etc/grafana"
      containers:
        - name: grafana
          image: "{{- .Values.docker.registry.name -}}{{- .Values.grafana.imageName -}}:{{- .Values.grafana.imageTag -}}"
          env:
          - name: "GF_AUTH_ANONYMOUS_ENABLED"
            value: "true"
          - name: "GF_SECURITY_ADMIN_PASSWORD"
            value: {{ .Values.grafana.adminPassword }}
          - name: "GF_PATHS_PROVISIONING"
            value: "/var/lib/grafana/config"
          - name: "GF_USERS_ALLOW_SIGN_UP"
            value: "false"
          - name: "GF_SERVER_ROOT_URL"
            value: "%(protocol)s://%(domain)s/monitoring"
          - name: "GF_SERVER_SERVE_FROM_SUB_PATH"
            value: "true"

          ports:
            - containerPort: {{ .Values.grafana.port }}
          livenessProbe:
            httpGet:
              path: /api/health
              port: {{ .Values.grafana.port }}
            initialDelaySeconds: 30
            timeoutSeconds: 5
          readinessProbe:
            httpGet:
              path: /api/health
              port: {{ .Values.grafana.port }}
          volumeMounts:
          - name: grafana-datasource-config-volume
            mountPath: /var/lib/grafana/config/datasources
          - name: grafana-dashboard-config-volume
            mountPath: /var/lib/grafana/config/dashboards
          - name: grafana-dashboard-volume
            mountPath: /var/lib/grafana/dashboards
      volumes:
      - name: grafana-datasource-config-volume
        configMap:
          name: "{{ .Release.Name }}-grafana-ds-cfg"
      - name: grafana-dashboard-config-volume
        configMap:
          name: "{{ .Release.Name }}-grafana-dsb-cfg"
      - name: grafana-download-volume
        configMap:
          name: "{{ .Release.Name }}-grafana-download"
      - name: grafana-dashboard-volume
        emptyDir: {}
{{- end }}