# ----------------------
# Exascaler CSI Driver
# ----------------------

apiVersion: storage.k8s.io/v1
kind: CSIDriver
metadata:
  name: exa.csi.ddn.com
spec:
  attachRequired: false
  podInfoOnMount: false
---

# ---------------------------------
# Exascaler CSI Controller Server
# ---------------------------------
#
# Runs single driver controller server (driver + provisioner + attacher + snapshotter) on one of the nodes
#

apiVersion: v1
kind: ServiceAccount
metadata:
  name: exascaler-csi-controller-service-account
  namespace: {{ .Release.Namespace }}
---

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: exascaler-csi-controller-cluster-role
rules:
  - apiGroups: ['']
    resources: ['secrets']
    verbs: ['get', 'list', "watch"]
  - apiGroups: ['']
    resources: ['persistentvolumes']
    verbs: ['get', 'list', 'watch', 'create', 'update', 'delete'] # "update" for attacher
  - apiGroups: ['']
    resources: ['persistentvolumeclaims']
    verbs: ['get', 'list', 'watch', 'update']
  - apiGroups: ['storage.k8s.io']
    resources: ['storageclasses']
    verbs: ['get', 'list', 'watch']
  - apiGroups: ['']
    resources: ['events']
    verbs: ['list', 'watch', 'create', 'update', 'patch']
  - apiGroups: ['snapshot.storage.k8s.io']
    resources: ['volumesnapshots']
    verbs: ['get', 'list']
  - apiGroups: ['snapshot.storage.k8s.io']
    resources: ['volumesnapshotcontents']
    verbs: ['get', 'list']
  # attacher specific
  - apiGroups: ['']
    resources: ['nodes', 'pods']
    verbs: ['get', 'list', 'watch']
  - apiGroups: ['csi.storage.k8s.io']
    resources: ['csinodeinfos']
    verbs: ['get', 'list', 'watch']
  - apiGroups: ['storage.k8s.io']
    resources: ['volumeattachments']
    verbs: ['get', 'list', 'watch', 'update']
  # snapshotter specific
  - apiGroups: ['snapshot.storage.k8s.io']
    resources: ['volumesnapshotclasses']
    verbs: ['get', 'list', 'watch']
  - apiGroups: ['snapshot.storage.k8s.io']
    resources: ['volumesnapshotcontents']
    verbs: ['create', 'get', 'list', 'watch', 'update', 'delete', 'patch']
  - apiGroups: ['snapshot.storage.k8s.io']
    resources: ['volumesnapshots']
    verbs: ['get', 'list', 'watch', 'update']
  - apiGroups: ["snapshot.storage.k8s.io"]
    resources: ["volumesnapshots/status"]
    verbs: ["update"]
  - apiGroups: ["snapshot.storage.k8s.io"]
    resources: ["volumesnapshotcontents/status"]
    verbs: ["update"]
  - apiGroups: ['apiextensions.k8s.io']
    resources: ['customresourcedefinitions']
    verbs: ['create', 'list', 'watch', 'delete']
  - apiGroups: [""]
    resources: ["persistentvolumeclaims/status"]
    verbs: ["update", "patch"]
  # CSINode specific
  - apiGroups: ["storage.k8s.io"]
    resources: ["csinodes"]
    verbs: ["watch", "list", "get"]
---

kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: exascaler-csi-controller-cluster-role-binding
subjects:
  - kind: ServiceAccount
    name: exascaler-csi-controller-service-account
    namespace: {{ .Release.Namespace }}
roleRef:
  kind: ClusterRole
  name: exascaler-csi-controller-cluster-role
  apiGroup: rbac.authorization.k8s.io
---

# External Resizer
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: csi-resizer-role
rules:
  # The following rule should be uncommented for plugins that require secrets
  # for provisioning.
  - apiGroups: [""]
    resources: ["secrets"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["persistentvolumes"]
    verbs: ["get", "list", "watch", "update", "patch"]
  - apiGroups: [""]
    resources: ["persistentvolumeclaims"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["persistentvolumeclaims/status"]
    verbs: ["update", "patch"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["storageclasses"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["events"]
    verbs: ["list", "watch", "create", "update", "patch"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: csi-resizer-binding
subjects:
  - kind: ServiceAccount
    name: exascaler-csi-controller-service-account
    namespace: {{ .Release.Namespace }}
roleRef:
  kind: ClusterRole
  name: csi-resizer-role
  apiGroup: rbac.authorization.k8s.io

---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  namespace: {{ .Release.Namespace }}
  name: external-resizer-cfg
rules:
- apiGroups: ["coordination.k8s.io"]
  resources: ["leases"]
  verbs: ["get", "watch", "list", "delete", "update", "create"]

---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: csi-resizer-role-cfg
  namespace: {{ .Release.Namespace }}
subjects:
  - kind: ServiceAccount
    name: exascaler-csi-controller-service-account
    namespace: {{ .Release.Namespace }}
roleRef:
  kind: Role
  name: external-resizer-cfg
  apiGroup: rbac.authorization.k8s.io
---

kind: Service
apiVersion: v1
metadata:
  name: exascaler-csi-controller-service
  labels:
    app: exascaler-csi-controller
spec:
  selector:
    app: exascaler-csi-controller
  ports:
    - name: dummy
      port: 12345
---

kind: Deployment
apiVersion: apps/v1
metadata:
  name: exascaler-csi-controller
  namespace: {{ .Release.Namespace }}
spec:
  # serviceName: exascaler-csi-controller-service
  selector:
    matchLabels:
      app: exascaler-csi-controller # has to match .spec.template.metadata.labels
  template:
    metadata:
      labels:
        app: exascaler-csi-controller
    spec:
      serviceAccount: exascaler-csi-controller-service-account
      priorityClassName: {{ .Values.priorityClassName }}
      containers:
        # csi-provisioner: sidecar container that watches Kubernetes PersistentVolumeClaim objects
        # and triggers CreateVolume/DeleteVolume against a CSI endpoint
        - name: csi-provisioner
          resources: {{ .Values.resources | default .Values.provisioner.resources | toYaml | nindent 12 }}
          image: {{ .Values.provisioner.repository }}:{{ .Values.provisioner.tag }}
          imagePullPolicy: {{ .Values.provisioner.pullPolicy }}
          args:
            - --csi-address=/var/lib/csi/sockets/pluginproxy/csi.sock
            - --volume-name-prefix={{ .Values.volumeNamePrefix }}
            - --strict-topology
            - --immediate-topology=false
            - --feature-gates=Topology=true
          env:
            - name: GOMEMLIMIT
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.memory
            - name: GOMAXPROCS
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.cpu
          volumeMounts:
            - name: socket-dir
              mountPath: /var/lib/csi/sockets/pluginproxy
        - name: csi-attacher
          resources: {{ .Values.resources | default .Values.attacher.resources | toYaml | nindent 12 }}
          image: {{ .Values.attacher.repository }}:{{ .Values.attacher.tag }}
          imagePullPolicy: {{ .Values.attacher.pullPolicy }}
          args:
            - --csi-address=$(ADDRESS)
            - --v=2
            - --leader-election=true
          env:
            - name: ADDRESS
              value: /var/lib/csi/sockets/pluginproxy/csi.sock
            - name: GOMEMLIMIT
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.memory
            - name: GOMAXPROCS
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.cpu
          volumeMounts:
            - name: socket-dir
              mountPath: /var/lib/csi/sockets/pluginproxy/
        - name: csi-snapshotter
          resources: {{ .Values.resources | default .Values.csi_snapshotter.resources | toYaml | nindent 12 }}
          image: {{ .Values.csi_snapshotter.repository }}:{{ .Values.csi_snapshotter.tag }}
          imagePullPolicy: {{ .Values.csi_snapshotter.pullPolicy }}
          args:
            - -v=3
            - --csi-address=/var/lib/csi/sockets/pluginproxy/csi.sock
            - --timeout={{ .Values.csi_snapshotter.timeout }}
          volumeMounts:
            - name: socket-dir
              mountPath: /var/lib/csi/sockets/pluginproxy
          env:
            - name: GOMEMLIMIT
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.memory
            - name: GOMAXPROCS
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.cpu
        - name: csi-resizer
          resources: {{ .Values.resources | default .Values.resizer.resources | toYaml | nindent 12 }}
          image: {{ .Values.resizer.repository }}:{{ .Values.resizer.tag }}
          imagePullPolicy: {{ .Values.resizer.pullPolicy }}
          args:
            - "--csi-address=$(ADDRESS)"
          env:
            - name: ADDRESS
              value: /var/lib/csi/sockets/pluginproxy/csi.sock
            - name: GOMEMLIMIT
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.memory
            - name: GOMAXPROCS
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.cpu
          volumeMounts:
            - name: socket-dir
              mountPath: /var/lib/csi/sockets/pluginproxy/
        - name: driver
          resources: {{ .Values.resources | default .Values.image.resources | toYaml | nindent 12 }}
          securityContext:
            privileged: true
            capabilities:
              add: ['SYS_ADMIN']
            allowPrivilegeEscalation: true
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          imagePullPolicy: "{{ .Values.image.pullPolicy }}"
          args:
            - --nodeid=$(KUBE_NODE_NAME)
            - --endpoint=unix://csi/csi.sock
            - --role=controller
          env:
            - name: KUBE_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: GOMEMLIMIT
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.memory
            - name: GOMAXPROCS
              valueFrom:
                resourceFieldRef:
                  divisor: "0"
                  resource: limits.cpu
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
            - name: secret
              mountPath: /config
              readOnly: true
            - name: host
              mountPath: /host
              mountPropagation: Bidirectional
      volumes:
        - name: socket-dir
          emptyDir:
        - name: secret
          secret:
            secretName: {{ .Values.secretName }}
        - name: host
          hostPath:
            path: /
            type: Directory
---