{{- include "dynatrace-operator.platformRequired" . }}
{{ if eq (include "dynatrace-operator.needCSI" .) "true" }}
# Copyright 2021 Dynatrace LLC

# 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: DaemonSet
metadata:
  labels:
      {{- include "dynatrace-operator.csiLabels" . | nindent 4 }}
  {{- if .Values.csidriver.labels }}
      {{- toYaml .Values.csidriver.labels | nindent 4 }}
  {{- end}}
  name: dynatrace-oneagent-csi-driver
  namespace: {{ .Release.Namespace }}
spec:
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      {{- include "dynatrace-operator.csiSelectorLabels" . | nindent 6 }}
  template:
    metadata:
      annotations:
        dynatrace.com/inject: "false"
        kubectl.kubernetes.io/default-container: provisioner
        cluster-autoscaler.kubernetes.io/enable-ds-eviction: "false"
        {{- if and (eq (default false .Values.apparmor) true) (ne (include "dynatrace-operator.platform" .) "openshift") }}
        container.apparmor.security.beta.kubernetes.io/driver: runtime/default
        container.apparmor.security.beta.kubernetes.io/registrar: runtime/default
        container.apparmor.security.beta.kubernetes.io/liveness-probe: runtime/default
        {{- end}}
        {{- if .Values.csidriver.annotations }}
        {{- toYaml .Values.csidriver.annotations | nindent 8 }}
        {{- end }}
      labels:
        {{- include "dynatrace-operator.csiLabels" . | nindent 8 }}
        {{- include "dynatrace-operator.csiSelectorLabels" . | nindent 8 }}
        {{- if .Values.csidriver.labels }}
        {{- toYaml .Values.csidriver.labels | nindent 8 }}
        {{- end }}
    spec:
      containers:
        # Used to receive/execute gRPC requests (NodePublishVolume/NodeUnpublishVolume) from kubelet to mount/unmount volumes for a pod
        # - Needs access to the csi socket, needs to read/write to it, needs root permissions to do so.
        # - Needs access to the filesystem of pods on the node, and mount stuff to it,needs to read/write to it, needs root permissions to do so
        # - Needs access to a dedicated folder on the node to persist data, needs to read/write to it.
      - name: server
        image: {{ include "dynatrace-operator.image" . }}
        imagePullPolicy: Always
        args:
        - csi-server
        - --endpoint=unix://csi/csi.sock
        - --node-id=$(KUBE_NODE_NAME)
        - --health-probe-bind-address=:10080
        env:
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace
        - name: KUBE_NODE_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: spec.nodeName
        livenessProbe:
          failureThreshold: 3
          httpGet:
            path: /livez
            port: livez
            scheme: HTTP
          initialDelaySeconds: 5
          periodSeconds: 5
          successThreshold: 1
          timeoutSeconds: 1
        ports:
        - containerPort: 10080
          name: livez
          protocol: TCP
        resources:
          {{- if .Values.csidriver.server.resources }}
          {{- toYaml .Values.csidriver.server.resources | nindent 10 }}
          {{- end }}
        securityContext:
          runAsUser: 0
          privileged: true # Needed for mountPropagation
          allowPrivilegeEscalation: true # Needed for privileged
          readOnlyRootFilesystem: true
          runAsNonRoot: false
          seccompProfile:
            type: RuntimeDefault
          seLinuxOptions:
            level: s0
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /csi
          name: plugin-dir
        - mountPath: {{ include "dynatrace-operator.CSIMountPointDir" . }}
          mountPropagation: Bidirectional
          name: mountpoint-dir
        - mountPath: /data
          name: data-dir
          mountPropagation: Bidirectional
        - name: tmp-dir
          mountPath: /tmp
      - name: provisioner
        image: {{ include "dynatrace-operator.image" . }}
        imagePullPolicy: Always
        args:
          - csi-provisioner
          - --health-probe-bind-address=:10090
        env:
          - name: POD_NAMESPACE
            valueFrom:
              fieldRef:
                apiVersion: v1
                fieldPath: metadata.namespace
          {{- if .Values.csidriver.maxUnmountedVolumeAge }}
          - name: MAX_UNMOUNTED_VOLUME_AGE
            value: "{{ .Values.csidriver.maxUnmountedVolumeAge}}"
          {{- end }}
        livenessProbe:
          failureThreshold: 3
          httpGet:
            path: /livez
            port: livez
            scheme: HTTP
          initialDelaySeconds: 5
          periodSeconds: 5
          successThreshold: 1
          timeoutSeconds: 1
        ports:
          - containerPort: 10090
            name: livez
            protocol: TCP
        resources:
          {{- if .Values.csidriver.provisioner.resources }}
          {{- toYaml .Values.csidriver.provisioner.resources | nindent 10 }}
          {{- end }}
        securityContext:
          runAsUser: 0
          privileged: true # Needed for mountPropagation
          allowPrivilegeEscalation: true # Needed for privileged
          readOnlyRootFilesystem: true
          runAsNonRoot: false
          seccompProfile:
            type: RuntimeDefault
          seLinuxOptions:
            level: s0
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
          - mountPath: /data
            name: data-dir
            mountPropagation: Bidirectional
          - mountPath: /tmp
            name: tmp-dir

        # Used to make a gRPC request (GetPluginInfo()) to the driver to get driver name and driver contain
        # - Needs access to the csi socket, needs to read/write to it, needs root permissions to do so.
        # Used for registering the driver with kubelet
        # - Needs access to the registration socket, needs to read/write to it, needs root permissions to do so.
      - name: registrar
        image: {{ include "dynatrace-operator.image" . }}
        imagePullPolicy: Always
        env:
        - name: DRIVER_REG_SOCK_PATH
          value: {{ include "dynatrace-operator.CSISocketPath" . }}
        args:
        - --csi-address=/csi/csi.sock
        - --kubelet-registration-path=$(DRIVER_REG_SOCK_PATH)
        command:
        - csi-node-driver-registrar
        resources:
          {{- if .Values.csidriver.registrar.resources }}
          {{- toYaml .Values.csidriver.registrar.resources | nindent 10 }}
          {{- end }}
        securityContext:
          runAsUser: 0
          privileged: false
          readOnlyRootFilesystem: true
          runAsNonRoot: false
          seccompProfile:
            type: RuntimeDefault
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /csi
          name: plugin-dir
        - mountPath: /registration
          name: registration-dir
        - mountPath: {{ include "dynatrace-operator.CSIPluginDir" . }}
          name: lockfile-dir
        # Used to make a gRPC request (Probe()) to the driver to check if its running
        # - Needs access to the csi socket, needs to read/write to it, needs root permissions to do so.
      - name: liveness-probe
        image: {{ include "dynatrace-operator.image" . }}
        imagePullPolicy: Always
        args:
        - --csi-address=/csi/csi.sock
        - --health-port=9898
        command:
        - livenessprobe
        resources:
          {{- if .Values.csidriver.livenessprobe.resources }}
          {{- toYaml .Values.csidriver.livenessprobe.resources | nindent 10 }}
          {{- end }}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        securityContext:
          runAsUser: 0
          privileged: false
          allowPrivilegeEscalation: false
          readOnlyRootFilesystem: true
          runAsNonRoot: false
          seccompProfile:
            type: RuntimeDefault
        volumeMounts:
        - mountPath: /csi
          name: plugin-dir
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      serviceAccountName: dynatrace-oneagent-csi-driver
      terminationGracePeriodSeconds: 30
      priorityClassName: {{ include "dynatrace-operator.CSIPriorityClassName" . }}
      volumes:
      # This volume is where the registrar registers the plugin with kubelet
      - name: registration-dir
        hostPath:
          path: {{ include "dynatrace-operator.CSIRegistrationDir" . }}
          type: Directory
        # This volume is where the socket for kubelet->driver communication is done
      - name: plugin-dir
        hostPath:
          path: {{ include "dynatrace-operator.CSIPluginDir" . }}
          type: DirectoryOrCreate
      - name: data-dir
        hostPath:
          path: {{ include "dynatrace-operator.CSIDataDir" . }}
          type: DirectoryOrCreate
        # This volume is where the driver mounts volumes
      - name: mountpoint-dir
        hostPath:
          path: {{ include "dynatrace-operator.CSIMountPointDir" . }}
          type: DirectoryOrCreate
        # Used by the registrar to create its lockfile
      - name: lockfile-dir
        emptyDir: {}
        # A volume for the driver to write temporary files to
      - name: tmp-dir
        emptyDir: {}
      {{- if .Values.customPullSecret }}
      imagePullSecrets:
        - name: {{ .Values.customPullSecret }}
      {{- end }}
      {{- if .Values.csidriver.nodeSelector }}
      nodeSelector: {{- toYaml .Values.csidriver.nodeSelector | nindent 8 }}
      {{- end }}
      tolerations:
        {{- if .Values.csidriver.tolerations }}
        {{- toYaml .Values.csidriver.tolerations | nindent 8 }}
        {{- end }}
        - key: kubernetes.io/arch
          value: arm64
          effect: NoSchedule
        - key: kubernetes.io/arch
          value: amd64
          effect: NoSchedule
        - key: ToBeDeletedByClusterAutoscaler
          operator: Exists
          effect: NoSchedule
  updateStrategy:
    rollingUpdate:
      maxUnavailable: 1
    type: RollingUpdate
{{- end -}}