{{/*
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 and .Values.manifests.monitoring.prometheus.deployment .Values.monitoring.prometheus.enabled }}
{{- $envAll := . }}

{{- $kafkaExporterUserSecret := .Values.secrets.kafka_exporter.user }}

{{- $serviceAccountName := "prometheus-kafka-exporter" }}
{{ tuple $envAll "kafka_exporter" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: prometheus-kafka-exporter
  labels:
{{ tuple $envAll "kafka-exporter" "exporter" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
  replicas: {{ .Values.pod.replicas.kafka_exporter }}
  selector:
    matchLabels:
{{ tuple $envAll "kafka-exporter" "exporter" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
{{ tuple $envAll | include "helm-toolkit.snippets.kubernetes_upgrades_deployment" | indent 2 }}
  template:
    metadata:
      labels:
{{ tuple $envAll "kafka-exporter" "exporter" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
      annotations:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
    spec:
{{ dict "envAll" $envAll "application" "kafka_exporter" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
      serviceAccountName: {{ $serviceAccountName }}
      nodeSelector:
        {{ .Values.labels.kafka.node_selector_key }}: {{ .Values.labels.kafka.node_selector_value | quote }}
      terminationGracePeriodSeconds: {{ .Values.pod.lifecycle.termination_grace_period.kafka_exporter.timeout | default "30" }}
      initContainers:
{{ tuple $envAll "kafka_exporter" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container"  | indent 8 }}
      containers:
        - name: kafka-exporter
{{ tuple $envAll "kafka_exporter" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.kafka_exporter | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
{{ dict "envAll" $envAll "application" "kafka_exporter" "container" "kafka_exporter" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
          command:
            - /tmp/kafka-exporter.sh
            - start
          lifecycle:
            preStop:
              exec:
                command:
                  - /tmp/kafka-exporter.sh
                  - stop
          env:
            - name: KAFKA_BROKERS
              value: {{ tuple "kafka" "internal" "broker" . | include "helm-toolkit.endpoints.host_and_port_endpoint_uri_lookup" | quote }}
            - name: KAFKA_EXPORTER_USERNAME
              valueFrom:
                secretKeyRef:
                  name: {{ $kafkaExporterUserSecret }}
                  key: KAFKA_EXPORTER_USERNAME
            - name: KAFKA_EXPORTER_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: {{ $kafkaExporterUserSecret }}
                  key: KAFKA_EXPORTER_PASSWORD
          ports:
            - name: exporter
              containerPort: {{ tuple "kafka_exporter" "internal" "exporter" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
          readinessProbe:
            tcpSocket:
              port: {{ tuple "kafka_exporter" "internal" "exporter" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            initialDelaySeconds: 20
            periodSeconds: 10
          volumeMounts:
            - name: pod-tmp
              mountPath: /tmp
            - name: kafka-exporter-bin
              mountPath: /tmp/kafka-exporter.sh
              subPath: kafka-exporter.sh
              readOnly: true
      volumes:
        - name: pod-tmp
          emptyDir: {}
        - name: kafka-exporter-bin
          configMap:
            name: kafka-exporter-bin
            defaultMode: 0555
{{- end }}