27.15.3. デプロイメント例

CSI コンポーネントの実行先のプロジェクトと、このコンポーネントを実行するサービスアカウントを新たに作成します。明示的なノードセレクターを使用して、マスターノード上でも CSI ドライバーが設定された Daemonset を実行します。

# oc adm new-project csi --node-selector=""
Now using project "csi" on server "https://example.com:8443".

# oc create serviceaccount cinder-csi
serviceaccount "cinder-csi" created

# oc adm policy add-scc-to-user privileged system:serviceaccount:csi:cinder-csi
scc "privileged" added to: ["system:serviceaccount:csi:cinder-csi"]

この YAML ファイルを適用して、外部の CSI アタッチャーとプロビジョナーを含むデプロイメントおよび CSI ドライバーを含む DaemonSet を作成します。

# This YAML file contains all API objects that are necessary to run Cinder CSI
# driver.
#
# In production, this needs to be in separate files, e.g. service account and
# role and role binding needs to be created once.
#
# It serves as an example of how to use external attacher and external provisioner
# images that are shipped with OpenShift Container Platform with a community CSI driver.

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: cinder-csi-role
rules:
  - apiGroups: [""]
    resources: ["persistentvolumes"]
    verbs: ["create", "delete", "get", "list", "watch", "update", "patch"]
  - apiGroups: [""]
    resources: ["events"]
    verbs: ["create", "get", "list", "watch", "update", "patch"]
  - apiGroups: [""]
    resources: ["persistentvolumeclaims"]
    verbs: ["get", "list", "watch", "update", "patch"]
  - apiGroups: [""]
    resources: ["nodes"]
    verbs: ["get", "list", "watch", "update", "patch"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["storageclasses"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["volumeattachments"]
    verbs: ["get", "list", "watch", "update", "patch"]
  - apiGroups: [""]
    resources: ["configmaps"]
    verbs: ["get", "list", "watch", "create", "update", "patch"]

---

kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: cinder-csi-role
subjects:
  - kind: ServiceAccount
    name: cinder-csi
    namespace: csi
roleRef:
  kind: ClusterRole
  name: cinder-csi-role
  apiGroup: rbac.authorization.k8s.io

---
apiVersion: v1
data:
  cloud.conf: W0dsb2JhbF0KYXV0aC11cmwgPSBodHRwczovL2V4YW1wbGUuY29tOjEzMDAwL3YyLjAvCnVzZXJuYW1lID0gYWxhZGRpbgpwYXNzd29yZCA9IG9wZW5zZXNhbWUKdGVuYW50LWlkID0gZTBmYTg1YjZhMDY0NDM5NTlkMmQzYjQ5NzE3NGJlZDYKcmVnaW9uID0gcmVnaW9uT25lCg== 1
kind: Secret
metadata:
  creationTimestamp: null
  name: cloudconfig
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: cinder-csi-controller
spec:
  replicas: 2
  selector:
    matchLabels:
      app: cinder-csi-controllers
  template:
    metadata:
      labels:
        app: cinder-csi-controllers
    spec:
      serviceAccount: cinder-csi
      containers:
        - name: csi-attacher
          image: registry.redhat.io/openshift3/csi-attacher:v3.11
          args:
            - "--v=5"
            - "--csi-address=$(ADDRESS)"
            - "--leader-election"
            - "--leader-election-namespace=$(MY_NAMESPACE)"
            - "--leader-election-identity=$(MY_NAME)"
          env:
            - name: MY_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: MY_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
            - name: ADDRESS
              value: /csi/csi.sock
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
        - name: csi-provisioner
          image: registry.redhat.io/openshift3/csi-provisioner:v3.11
          args:
            - "--v=5"
            - "--provisioner=csi-cinderplugin"
            - "--csi-address=$(ADDRESS)"
          env:
            - name: ADDRESS
              value: /csi/csi.sock
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
        - name: cinder-driver
          image: quay.io/jsafrane/cinder-csi-plugin
          command: [ "/bin/cinder-csi-plugin" ]
          args:
            - "--nodeid=$(NODEID)"
            - "--endpoint=unix://$(ADDRESS)"
            - "--cloud-config=/etc/cloudconfig/cloud.conf"
          env:
            - name: NODEID
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: ADDRESS
              value: /csi/csi.sock
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
            - name: cloudconfig
              mountPath: /etc/cloudconfig
      volumes:
        - name: socket-dir
          emptyDir:
        - name: cloudconfig
          secret:
            secretName: cloudconfig

---

kind: DaemonSet
apiVersion: apps/v1
metadata:
  name: cinder-csi-ds
spec:
  selector:
    matchLabels:
      app: cinder-csi-driver
  template:
    metadata:
      labels:
        app: cinder-csi-driver
    spec:
      2
      serviceAccount: cinder-csi
      containers:
        - name: csi-driver-registrar
          image: registry.redhat.io/openshift3/csi-driver-registrar:v3.11
          securityContext:
            privileged: true
          args:
            - "--v=5"
            - "--csi-address=$(ADDRESS)"
          env:
            - name: ADDRESS
              value: /csi/csi.sock
            - name: KUBE_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
        - name: cinder-driver
          securityContext:
            privileged: true
            capabilities:
              add: ["SYS_ADMIN"]
            allowPrivilegeEscalation: true
          image: quay.io/jsafrane/cinder-csi-plugin
          command: [ "/bin/cinder-csi-plugin" ]
          args:
            - "--nodeid=$(NODEID)"
            - "--endpoint=unix://$(ADDRESS)"
            - "--cloud-config=/etc/cloudconfig/cloud.conf"
          env:
            - name: NODEID
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: ADDRESS
              value: /csi/csi.sock
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
            - name: cloudconfig
              mountPath: /etc/cloudconfig
            - name: mountpoint-dir
              mountPath: /var/lib/origin/openshift.local.volumes/pods/
              mountPropagation: "Bidirectional"
            - name: cloud-metadata
              mountPath: /var/lib/cloud/data/
            - name: dev
              mountPath: /dev
      volumes:
        - name: cloud-metadata
          hostPath:
            path: /var/lib/cloud/data/
        - name: socket-dir
          hostPath:
            path: /var/lib/kubelet/plugins/csi-cinderplugin
            type: DirectoryOrCreate
        - name: mountpoint-dir
          hostPath:
            path: /var/lib/origin/openshift.local.volumes/pods/
            type: Directory
        - name: cloudconfig
          secret:
            secretName: cloudconfig
        - name: dev
          hostPath:
            path: /dev