WIP cephfs CSI plugin

deploy/cephfs/docker/Dockerfile

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+FROM ubuntu:16.04
+LABEL maintainers="Kubernetes Authors"
+LABEL description="CephFS CSI Plugin"
+
+ENV CEPH_VERSION "luminous"
+
+RUN apt-get update && \
+    apt-get install -y ceph-fuse attr && \
+     apt-get autoremove
+
+COPY cephfsplugin /cephfsplugin
+RUN chmod +x /cephfsplugin
+ENTRYPOINT ["/cephfsplugin"]

deploy/cephfs/kubernetes/cephfs-storage-class.yaml

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+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: cephfs
+provisioner: cephfsplugin
+parameters:
+  provisionRoot: /cephfs
+reclaimPolicy: Delete 

deploy/cephfs/kubernetes/cephfsplugin.yaml

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+# This YAML defines all API objects to create RBAC roles for csi node plugin.
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: csi-nodeplugin
+
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: csi-nodeplugin
+rules:
+  - apiGroups: [""]
+    resources: ["nodes"]
+    verbs: ["get", "list", "update"]
+  - apiGroups: [""]
+    resources: ["secrets"]
+    verbs: ["get", "list"]
+  - apiGroups: [""]
+    resources: ["namespaces"]
+    verbs: ["get", "list"]
+  - apiGroups: [""]
+    resources: ["persistentvolumes"]
+    verbs: ["get", "list", "watch", "update"]
+  - apiGroups: ["storage.k8s.io"]
+    resources: ["volumeattachments"]
+    verbs: ["get", "list", "watch", "update"]
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: csi-nodeplugin
+subjects:
+  - kind: ServiceAccount
+    name: csi-nodeplugin
+    namespace: default
+roleRef:
+  kind: ClusterRole
+  name: csi-nodeplugin
+  apiGroup: rbac.authorization.k8s.io          
+
+---
+# This YAML file contains driver-registrar & csi driver nodeplugin API objects,
+# which are necessary to run csi nodeplugin for cephfs.
+
+kind: DaemonSet
+apiVersion: apps/v1beta2
+metadata:
+  name: csi-nodeplugin-cephfsplugin
+spec:
+  selector:
+    matchLabels:
+      app: csi-nodeplugin-cephfsplugin
+  template:
+    metadata:
+      labels:
+        app: csi-nodeplugin-cephfsplugin
+    spec:
+      serviceAccount: csi-nodeplugin
+      hostNetwork: true
+      containers:
+        - name: driver-registrar
+          image: quay.io/k8scsi/driver-registrar:latest
+          args:
+            - "--v=5"
+            - "--csi-address=$(ADDRESS)"
+          env:
+            - name: ADDRESS
+              value: /var/lib/kubelet/plugins/cephfsplugin/csi.sock
+            - name: KUBE_NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+          volumeMounts:
+            - name: socket-dir
+              mountPath: /var/lib/kubelet/plugins/cephfsplugin
+        - name: cephfsplugin 
+          securityContext:
+            privileged: true
+            capabilities:
+              add: ["SYS_ADMIN"]
+            allowPrivilegeEscalation: true
+          image: csi_images/cephfsplugin:latest
+          args :
+            - "--nodeid=$(NODE_ID)"
+            - "--endpoint=$(CSI_ENDPOINT)"
+            - "--v=5"
+            - "--drivername=cephfsplugin"
+          env:
+            - name: NODE_ID
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+            - name: CSI_ENDPOINT
+              value: unix://var/lib/kubelet/plugins/cephfsplugin/csi.sock
+          imagePullPolicy: "IfNotPresent"
+          volumeMounts:
+            - name: plugin-dir
+              mountPath: /var/lib/kubelet/plugins/cephfsplugin
+            - name: pods-mount-dir
+              mountPath: /var/lib/kubelet/pods
+              mountPropagation: "Bidirectional"
+            - mountPath: /dev
+              name: host-dev
+            - mountPath: /sys
+              name: host-sys
+            - mountPath: /lib/modules
+              name: lib-modules
+              readOnly: true
+            - name: cephfs-config
+              mountPath: /etc/ceph
+      volumes:
+        - name: plugin-dir
+          hostPath:
+            path: /var/lib/kubelet/plugins/cephfsplugin
+            type: DirectoryOrCreate
+        - name: pods-mount-dir
+          hostPath:
+            path: /var/lib/kubelet/pods
+            type: Directory
+        - name: socket-dir
+          hostPath:
+            path: /var/lib/kubelet/plugins/cephfsplugin
+            type: DirectoryOrCreate
+        - name: host-dev
+          hostPath:
+            path: /dev
+        - name: host-sys
+          hostPath:
+            path: /sys
+        - name: lib-modules
+          hostPath:
+            path: /lib/modules
+        - name: cephfs-config
+          hostPath:
+            path: /etc/ceph

deploy/cephfs/kubernetes/csi-attacher.yaml

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+# This YAML file contains RBAC API objects,
+# which are necessary to run external csi attacher for cinder.
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: csi-attacher
+
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: external-attacher-runner
+rules:
+  - apiGroups: [""]
+    resources: ["persistentvolumes"]
+    verbs: ["get", "list", "watch", "update"]
+  - apiGroups: [""]
+    resources: ["nodes"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["storage.k8s.io"]
+    resources: ["volumeattachments"]
+    verbs: ["get", "list", "watch", "update"]
+
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: csi-attacher-role
+subjects:
+  - kind: ServiceAccount
+    name: csi-attacher
+    namespace: default
+roleRef:
+  kind: ClusterRole
+  name: external-attacher-runner
+  apiGroup: rbac.authorization.k8s.io
+---
+
+kind: Service
+apiVersion: v1
+metadata:
+  name: csi-attacher
+  labels:
+    app: csi-attacher
+spec:
+  selector:
+    app: csi-attacher
+  ports:
+    - name: dummy
+      port: 12345
+
+---
+kind: StatefulSet
+apiVersion: apps/v1beta1
+metadata:
+  name: csi-attacher
+spec:
+  serviceName: "csi-attacher"
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: csi-attacher
+    spec:
+      serviceAccount: csi-attacher
+      containers:
+        - name: csi-attacher
+          image: quay.io/k8scsi/csi-attacher:latest
+          args:
+            - "--v=5"
+            - "--csi-address=$(ADDRESS)"
+          env:
+            - name: ADDRESS
+              value: /var/lib/kubelet/plugins/cephfsplugin/csi.sock
+          imagePullPolicy: "IfNotPresent"
+          volumeMounts:
+            - name: socket-dir
+              mountPath: /var/lib/kubelet/plugins/cephfsplugin
+      volumes:
+        - name: socket-dir
+          hostPath:
+            path: /var/lib/kubelet/plugins/cephfsplugin
+            type: DirectoryOrCreate

deploy/cephfs/kubernetes/csi-provisioner.yaml

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+# This YAML file contains all API objects that are necessary to run external
+# CSI provisioner.
+#
+# In production, this needs to be in separate files, e.g. service account and
+# role and role binding needs to be created once, while stateful set may
+# require some tuning.
+#
+# In addition, mock CSI driver is hardcoded as the CSI driver.
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: csi-provisioner
+
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: external-provisioner-runner
+rules:
+  - apiGroups: [""]
+    resources: ["persistentvolumes"]
+    verbs: ["get", "list", "watch", "create", "delete"]
+  - 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"]
+    
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: csi-provisioner-role
+subjects:
+  - kind: ServiceAccount
+    name: csi-provisioner
+    namespace: default
+roleRef:
+  kind: ClusterRole
+  name: external-provisioner-runner
+  apiGroup: rbac.authorization.k8s.io
+
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: csi-provisioner
+  labels:
+    app: csi-provisioner
+spec:
+  selector:
+    app: csi-provisioner
+  ports:
+    - name: dummy
+      port: 12345
+
+---
+kind: StatefulSet
+apiVersion: apps/v1beta1
+metadata:
+  name: csi-provisioner
+spec:
+  serviceName: "csi-provisioner"
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: csi-provisioner
+    spec:
+      serviceAccount: csi-provisioner
+      containers:
+        - name: csi-provisioner
+          image: quay.io/k8scsi/csi-provisioner:latest
+          # image: quay.io/k8scsi/csi-provisioner:latest
+          args:
+            - "--provisioner=cephfsplugin"
+            - "--csi-address=$(ADDRESS)"
+            - "--v=5"
+          env:
+            - name: ADDRESS
+              value: /var/lib/kubelet/plugins/cephfsplugin/csi.sock
+          imagePullPolicy: "IfNotPresent"
+          volumeMounts:
+            - name: socket-dir
+              mountPath: /var/lib/kubelet/plugins/cephfsplugin
+      volumes:
+        - name: socket-dir
+          hostPath:
+            path: /var/lib/kubelet/plugins/cephfsplugin
+            type: DirectoryOrCreate

deploy/cephfs/kubernetes/deploy-csi.sh

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+#!/bin/bash
+
+objects=(cephfs-storage-class cephfsplugin csi-attacher csi-provisioner)
+
+for obj in ${objects[@]}; do
+	kubectl create -f "./$obj.yaml"
+done

deploy/cephfs/kubernetes/deploy-pod.sh

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+#!/bin/sh
+
+kubectl create -f ./pvc.yaml
+kubectl create -f ./pod.yaml

deploy/cephfs/kubernetes/pod.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: web-server
+spec:
+  containers:
+   - name: web-server
+     image: nginx
+     volumeMounts:
+       - mountPath: /var/lib/www/html
+         name: mypvc
+  volumes:
+   - name: mypvc
+     persistentVolumeClaim:
+       claimName: cephfs-pvc
+       readOnly: false
+

deploy/cephfs/kubernetes/pvc.yaml

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+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: cephfs-pvc
+spec:
+  accessModes:
+  - ReadWriteOnce
+  resources:
+    requests:
+      storage: 5Gi
+  storageClassName: cephfs

deploy/cephfs/kubernetes/teardown-csi.sh

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+#!/bin/bash
+
+objects=(cephfsplugin csi-provisioner csi-attacher cephfs-storage-class)
+
+for obj in ${objects[@]}; do
+	kubectl delete -f "./$obj.yaml"
+done

deploy/cephfs/kubernetes/teardown-pod.sh

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+#!/bin/sh
+
+kubectl delete -f ./pod.yaml
+kubectl delete -f ./pvc.yaml