################################################################################
#   Copyright (c) 2019 AT&T Intellectual Property.                             #
#                                                                              #
#   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: Deployment
metadata:
  name: {{ template "fullname" . }}
  labels:
    app: {{ .Chart.Name }}
    release: {{ .Release.Name | quote }}
    {{- range $key, $value := .Values.labels }}
    {{ $key }}: {{ $value | quote }}
    {{- end }}
spec:
  replicas: {{ .Values.replicas }}
  strategy:
{{ toYaml .Values.updateStrategy | indent 4 }}
  selector:
    matchLabels:
      app: kibana
      release: {{ .Release.Name | quote }}
  template:
    metadata:
      labels:
        app: kibana
        release: {{ .Release.Name | quote }}
      annotations:
        {{- range $key, $value := .Values.podAnnotations }}
        {{ $key }}: {{ $value | quote }}
        {{- end }}
        {{/* This forces a restart if the configmap has changed */}}
        {{- if .Values.kibanaConfig }}
        configchecksum: {{ include (print .Template.BasePath "/configmap.yaml") . | sha256sum | trunc 63 }}
        {{- end }}
    spec:
{{- if .Values.priorityClassName }}
      priorityClassName: {{ .Values.priorityClassName }}
{{- end }}
      securityContext:
{{ toYaml .Values.podSecurityContext | indent 8 }}
      {{- if .Values.serviceAccount }}
      serviceAccount: {{ .Values.serviceAccount }}
      {{- end }}
      volumes:
        {{- range .Values.secretMounts }}
        - name: {{ .name }}
          secret:
            secretName: {{ .secretName }}
        {{- end }}
        {{- if .Values.kibanaConfig }}
        - name: kibanaconfig
          configMap:
            name: {{ template "fullname" . }}-config
        {{- end }}
    {{- with .Values.nodeSelector }}
      nodeSelector:
{{ toYaml . | indent 8 }}
    {{- end }}
    {{- with .Values.affinity }}
      affinity:
{{ toYaml . | indent 8 }}
    {{- end }}
    {{- with .Values.tolerations }}
      tolerations:
{{ toYaml . | indent 8 }}
    {{- end }}
    {{- if .Values.imagePullSecrets }}
      imagePullSecrets:
{{ toYaml .Values.imagePullSecrets | indent 8 }}
    {{- end }}
      containers:
      - name: kibana
        securityContext:
{{ toYaml .Values.securityContext | indent 10 }}
        image: "{{ .Values.image }}:{{ .Values.imageTag }}"
        imagePullPolicy: "{{ .Values.imagePullPolicy }}"
        env:
          {{- if .Values.elasticsearchURL }}
          - name: ELASTICSEARCH_URL
            value: "{{ .Values.elasticsearchURL }}"
          {{- else if .Values.elasticsearchHosts }}
          - name: ELASTICSEARCH_HOSTS
            value: "{{ .Values.elasticsearchHosts }}"
          {{- end }}
          - name: SERVER_HOST
            value: "{{ .Values.serverHost }}"
{{- if .Values.extraEnvs }}
{{ toYaml .Values.extraEnvs | indent 10 }}
{{- end }}
        readinessProbe:
{{ toYaml .Values.readinessProbe | indent 10 }}
          exec:
            command:
              - sh
              - -c
              - |
                #!/usr/bin/env bash -e
                http () {
                    local path="${1}"
                    set -- -XGET -s --fail

                    if [ -n "${ELASTIC_USERNAME}" ] && [ -n "${ELASTIC_PASSWORD}" ]; then
                      set -- "$@" -u "${ELASTIC_USERNAME}:${ELASTIC_PASSWORD}"
                    fi

                    curl -k "$@" "{{ .Values.protocol }}://localhost:{{ .Values.httpPort }}${path}"
                }

                http "{{ .Values.healthCheckPath }}"
        ports:
        - containerPort: {{ .Values.httpPort }}
        resources:
{{ toYaml .Values.resources | indent 10 }}
        volumeMounts:
          {{- range .Values.secretMounts }}
          - name: {{ .name }}
            mountPath: {{ .path }}
            {{- if .subPath }}
            subPath: {{ .subPath }}
            {{- end }}
          {{- end }}
          {{- range $path, $config := .Values.kibanaConfig }}
          - name: kibanaconfig
            mountPath: /usr/share/kibana/config/{{ $path }}
            subPath: {{ $path }}
          {{- end -}}