apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: {{ include "prometheus-node-exporter.fullname" . }}
  namespace: {{ include "prometheus-node-exporter.namespace" . }}
  labels:
    {{- include "prometheus-node-exporter.labels" . | nindent 4 }}
  {{- with .Values.daemonsetAnnotations }}
  annotations:
    {{- toYaml . | nindent 4 }}
  {{- end }}
spec:
  selector:
    matchLabels:
      {{- include "prometheus-node-exporter.selectorLabels" . | nindent 6 }}
  {{- with .Values.updateStrategy }}
  updateStrategy:
    {{- toYaml . | nindent 4 }}
  {{- end }}
  template:
    metadata:
      {{- with .Values.podAnnotations }}
      annotations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      labels:
        {{- include "prometheus-node-exporter.labels" . | nindent 8 }}
    spec:
      automountServiceAccountToken: {{ ternary true false (or .Values.serviceAccount.automountServiceAccountToken .Values.kubeRBACProxy.enabled) }}
      {{- with .Values.securityContext }}
      securityContext:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.priorityClassName }}
      priorityClassName: {{ . }}
      {{- end }}
      {{- with .Values.extraInitContainers }}
      initContainers:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      serviceAccountName: {{ include "prometheus-node-exporter.serviceAccountName" . }}
      containers:
        {{- $servicePort := ternary 8100 .Values.service.port .Values.kubeRBACProxy.enabled }}
        - name: node-exporter
          image: {{ include "prometheus-node-exporter.image" . }}
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          args:
            - --path.procfs=/host/proc
            - --path.sysfs=/host/sys
            {{- if .Values.hostRootFsMount.enabled }}
            - --path.rootfs=/host/root
            {{- if semverCompare ">=1.4.0" (default .Chart.AppVersion .Values.image.tag) }}
            - --path.udev.data=/host/root/run/udev/data
            {{- end }}
            {{- end }}
            - --web.listen-address=[$(HOST_IP)]:{{ $servicePort }}
            {{- with .Values.extraArgs }}
            {{- toYaml . | nindent 12 }}
            {{- end }}
          {{- with .Values.containerSecurityContext }}
          securityContext:
            {{- toYaml . | nindent 12 }}
          {{- end }}
          env:
            - name: HOST_IP
              {{- if .Values.service.listenOnAllInterfaces }}
              value: 0.0.0.0
              {{- else }}
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: status.hostIP
              {{- end }}
            {{- range $key, $value := .Values.env }}
            - name: {{ $key }}
              value: {{ $value | quote }}
            {{- end }}
          {{- if eq .Values.kubeRBACProxy.enabled false }}
          ports:
            - name: {{ .Values.service.portName }}
              containerPort: {{ .Values.service.port }}
              protocol: TCP
          {{- end }}
          livenessProbe:
            failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
            httpGet:
              httpHeaders:
              {{- range $_, $header := .Values.livenessProbe.httpGet.httpHeaders }}
              - name: {{ $header.name }}
                value: {{ $header.value }}
              {{- end }}
              path: /
              port: {{ $servicePort }}
              scheme: {{ upper .Values.livenessProbe.httpGet.scheme }}
            initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
            periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
            successThreshold: {{ .Values.livenessProbe.successThreshold }}
            timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
          readinessProbe:
            failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
            httpGet:
              httpHeaders:
              {{- range $_, $header := .Values.readinessProbe.httpGet.httpHeaders }}
              - name: {{ $header.name }}
                value: {{ $header.value }}
              {{- end }}
              path: /
              port: {{ $servicePort }}
              scheme: {{ upper .Values.readinessProbe.httpGet.scheme }}
            initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds }}
            periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
            successThreshold: {{ .Values.readinessProbe.successThreshold }}
            timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
          {{- with .Values.resources }}
          resources:
            {{- toYaml . | nindent 12 }}
          {{- end }}
          volumeMounts:
            - name: proc
              mountPath: /host/proc
              readOnly:  true
            - name: sys
              mountPath: /host/sys
              readOnly: true
            {{- if .Values.hostRootFsMount.enabled }}
            - name: root
              mountPath: /host/root
              {{- with .Values.hostRootFsMount.mountPropagation }}
              mountPropagation: {{ . }}
              {{- end }}
              readOnly: true
            {{- end }}
            {{- range $_, $mount := .Values.extraHostVolumeMounts }}
            - name: {{ $mount.name }}
              mountPath: {{ $mount.mountPath }}
              readOnly: {{ $mount.readOnly }}
              {{- with $mount.mountPropagation }}
              mountPropagation: {{ . }}
              {{- end }}
            {{- end }}
            {{- range $_, $mount := .Values.sidecarVolumeMount }}
            - name: {{ $mount.name }}
              mountPath: {{ $mount.mountPath }}
              readOnly: true
            {{- end }}
            {{- range $_, $mount := .Values.configmaps }}
            - name: {{ $mount.name }}
              mountPath: {{ $mount.mountPath }}
            {{- end }}
            {{- range $_, $mount := .Values.secrets }}
            - name: {{ .name }}
              mountPath: {{ .mountPath }}
            {{- end }}
        {{- with .Values.sidecars }}
        {{- toYaml . | nindent 8 }}
          {{- if or $.Values.sidecarVolumeMount $.Values.sidecarHostVolumeMounts }}
          volumeMounts:
            {{- range $_, $mount := $.Values.sidecarVolumeMount }}
            - name: {{ $mount.name }}
              mountPath: {{ $mount.mountPath }}
              readOnly: {{ $mount.readOnly }}
            {{- end }}
            {{- range $_, $mount := $.Values.sidecarHostVolumeMounts }}
            - name: {{ $mount.name }}
              mountPath: {{ $mount.mountPath }}
              readOnly: {{ $mount.readOnly }}
            {{- if $mount.mountPropagation }}
              mountPropagation: {{ $mount.mountPropagation }}
            {{- end }}
            {{- end }}
          {{- end }}
        {{- end }}
        {{-  if .Values.kubeRBACProxy.enabled  }}
        - name: kube-rbac-proxy
          args:
            {{-  if .Values.kubeRBACProxy.extraArgs  }}
            {{- .Values.kubeRBACProxy.extraArgs | toYaml | nindent 12 }}
            {{-  end  }}
            - --secure-listen-address=:{{ .Values.service.port}}
            - --upstream=http://127.0.0.1:{{ $servicePort }}/
            - --proxy-endpoints-port=8888
            - --config-file=/etc/kube-rbac-proxy-config/config-file.yaml
          volumeMounts:
            - name: kube-rbac-proxy-config
              mountPath: /etc/kube-rbac-proxy-config
          imagePullPolicy: {{ .Values.kubeRBACProxy.image.pullPolicy }}
          {{- if .Values.kubeRBACProxy.image.sha }}
          image: "{{ .Values.global.imageRegistry | default .Values.kubeRBACProxy.image.registry}}/{{ .Values.kubeRBACProxy.image.repository }}:{{ .Values.kubeRBACProxy.image.tag }}@sha256:{{ .Values.kubeRBACProxy.image.sha }}"
          {{- else }}
          image: "{{ .Values.global.imageRegistry | default .Values.kubeRBACProxy.image.registry}}/{{ .Values.kubeRBACProxy.image.repository }}:{{ .Values.kubeRBACProxy.image.tag }}"
          {{- end }}
          ports:
            - containerPort: {{ .Values.service.port}}
              name: "http"
            - containerPort: 8888
              name: "http-healthz"
          readinessProbe:
            httpGet:
              scheme: HTTPS
              port: 8888
              path: healthz
            initialDelaySeconds: 5
            timeoutSeconds: 5
          {{- if .Values.kubeRBACProxy.resources }}
          resources:
          {{ toYaml .Values.kubeRBACProxy.resources | nindent 12 }}
          {{- end }}
          {{- if .Values.kubeRBACProxy.containerSecurityContext }}
          securityContext:
          {{ toYaml .Values.kubeRBACProxy.containerSecurityContext | nindent 12 }}
        {{- end }}
        {{- end }}
      {{- if or .Values.imagePullSecrets .Values.global.imagePullSecrets }}
      imagePullSecrets:
        {{- include "prometheus-node-exporter.imagePullSecrets" (dict "Values" .Values "imagePullSecrets" .Values.imagePullSecrets) | indent 8 }}
      {{- end }}
      hostNetwork: {{ .Values.hostNetwork }}
      hostPID: {{ .Values.hostPID }}
      {{- with .Values.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.dnsConfig }}
      dnsConfig:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      volumes:
        - name: proc
          hostPath:
            path: /proc
        - name: sys
          hostPath:
            path: /sys
        {{- if .Values.hostRootFsMount.enabled }}
        - name: root
          hostPath:
            path: /
        {{- end }}
        {{- range $_, $mount := .Values.extraHostVolumeMounts }}
        - name: {{ $mount.name }}
          hostPath:
            path: {{ $mount.hostPath }}
        {{- end }}
        {{- range $_, $mount := .Values.sidecarVolumeMount }}
        - name: {{ $mount.name }}
          emptyDir:
            medium: Memory
        {{- end }}
        {{- range $_, $mount := .Values.sidecarHostVolumeMounts }}
        - name: {{ $mount.name }}
          hostPath:
            path: {{ $mount.hostPath }}
        {{- end }}
        {{- range $_, $mount := .Values.configmaps }}
        - name: {{ $mount.name }}
          configMap:
            name: {{ $mount.name }}
        {{- end }}
        {{- range $_, $mount := .Values.secrets }}
        - name: {{ $mount.name }}
          secret:
            secretName: {{ $mount.name }}
        {{- end }}
        {{- if .Values.kubeRBACProxy.enabled }}
        - name: kube-rbac-proxy-config
          configMap:
            name: {{ template "prometheus-node-exporter.fullname" . }}-rbac-config
        {{- end }}