mirror of
https://github.com/ceph/ceph-csi.git
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b50d8596ea
When running the kubernetes cluster with one single privileged
PodSecurityPolicy which is allowing everything the nodeplugin
daemonset can fail to start. To be precise the problem is the
defaultAllowPrivilegeEscalation: false configuration in the PSP.
Containers of the nodeplugin daemonset won't start when they
have privileged: true but no allowPrivilegeEscalation in their
container securityContext.
Kubernetes will not schedule if this mismatch exists cannot set
allowPrivilegeEscalation to false and privileged to true:
Signed-off-by: Silvan Loser <silvan.loser@hotmail.ch>
Signed-off-by: Silvan Loser <33911078+losil@users.noreply.github.com>
(cherry picked from commit f2e0fa28fb)
192 lines
6.0 KiB
YAML
192 lines
6.0 KiB
YAML
---
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kind: DaemonSet
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apiVersion: apps/v1
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metadata:
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name: csi-cephfsplugin
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spec:
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selector:
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matchLabels:
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app: csi-cephfsplugin
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template:
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metadata:
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labels:
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app: csi-cephfsplugin
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spec:
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serviceAccountName: cephfs-csi-nodeplugin
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priorityClassName: system-node-critical
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hostNetwork: true
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hostPID: true
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# to use e.g. Rook orchestrated cluster, and mons' FQDN is
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# resolved through k8s service, set dns policy to cluster first
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dnsPolicy: ClusterFirstWithHostNet
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containers:
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- name: driver-registrar
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# This is necessary only for systems with SELinux, where
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# non-privileged sidecar containers cannot access unix domain socket
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# created by privileged CSI driver container.
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securityContext:
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privileged: true
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allowPrivilegeEscalation: true
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image: k8s.gcr.io/sig-storage/csi-node-driver-registrar:v2.4.0
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args:
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- "--v=5"
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- "--csi-address=/csi/csi.sock"
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- "--kubelet-registration-path=/var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi.sock"
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env:
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- name: KUBE_NODE_NAME
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valueFrom:
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fieldRef:
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fieldPath: spec.nodeName
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volumeMounts:
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- name: socket-dir
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mountPath: /csi
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- name: registration-dir
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mountPath: /registration
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- name: csi-cephfsplugin
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securityContext:
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privileged: true
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capabilities:
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add: ["SYS_ADMIN"]
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allowPrivilegeEscalation: true
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# for stable functionality replace canary with latest release version
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image: quay.io/cephcsi/cephcsi:v3.6-canary
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args:
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- "--nodeid=$(NODE_ID)"
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- "--type=cephfs"
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- "--nodeserver=true"
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- "--endpoint=$(CSI_ENDPOINT)"
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- "--v=5"
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- "--drivername=cephfs.csi.ceph.com"
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- "--enableprofiling=false"
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# If topology based provisioning is desired, configure required
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# node labels representing the nodes topology domain
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# and pass the label names below, for CSI to consume and advertise
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# its equivalent topology domain
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# - "--domainlabels=failure-domain/region,failure-domain/zone"
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env:
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- name: POD_IP
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valueFrom:
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fieldRef:
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fieldPath: status.podIP
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- name: NODE_ID
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valueFrom:
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fieldRef:
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fieldPath: spec.nodeName
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- name: CSI_ENDPOINT
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value: unix:///csi/csi.sock
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imagePullPolicy: "IfNotPresent"
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volumeMounts:
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- name: socket-dir
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mountPath: /csi
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- name: mountpoint-dir
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mountPath: /var/lib/kubelet/pods
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mountPropagation: Bidirectional
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- name: plugin-dir
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mountPath: /var/lib/kubelet/plugins
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mountPropagation: "Bidirectional"
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- name: host-sys
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mountPath: /sys
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- name: etc-selinux
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mountPath: /etc/selinux
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readOnly: true
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- name: lib-modules
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mountPath: /lib/modules
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readOnly: true
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- name: host-dev
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mountPath: /dev
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- name: host-mount
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mountPath: /run/mount
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- name: ceph-config
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mountPath: /etc/ceph/
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- name: ceph-csi-config
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mountPath: /etc/ceph-csi-config/
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- name: keys-tmp-dir
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mountPath: /tmp/csi/keys
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- name: ceph-csi-mountinfo
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mountPath: /csi/mountinfo
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- name: liveness-prometheus
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securityContext:
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privileged: true
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allowPrivilegeEscalation: true
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image: quay.io/cephcsi/cephcsi:v3.6-canary
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args:
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- "--type=liveness"
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- "--endpoint=$(CSI_ENDPOINT)"
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- "--metricsport=8681"
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- "--metricspath=/metrics"
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- "--polltime=60s"
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- "--timeout=3s"
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env:
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- name: CSI_ENDPOINT
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value: unix:///csi/csi.sock
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- name: POD_IP
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valueFrom:
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fieldRef:
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fieldPath: status.podIP
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volumeMounts:
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- name: socket-dir
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mountPath: /csi
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imagePullPolicy: "IfNotPresent"
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volumes:
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- name: socket-dir
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hostPath:
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path: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/
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type: DirectoryOrCreate
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- name: registration-dir
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hostPath:
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path: /var/lib/kubelet/plugins_registry/
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type: Directory
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- name: mountpoint-dir
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hostPath:
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path: /var/lib/kubelet/pods
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type: DirectoryOrCreate
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- name: plugin-dir
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hostPath:
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path: /var/lib/kubelet/plugins
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type: Directory
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- name: host-sys
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hostPath:
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path: /sys
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- name: etc-selinux
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hostPath:
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path: /etc/selinux
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- name: lib-modules
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hostPath:
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path: /lib/modules
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- name: host-dev
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hostPath:
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path: /dev
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- name: host-mount
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hostPath:
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path: /run/mount
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- name: ceph-config
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configMap:
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name: ceph-config
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- name: ceph-csi-config
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configMap:
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name: ceph-csi-config
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- name: keys-tmp-dir
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emptyDir: {
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medium: "Memory"
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}
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- name: ceph-csi-mountinfo
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hostPath:
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path: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/mountinfo
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type: DirectoryOrCreate
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---
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# This is a service to expose the liveness metrics
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apiVersion: v1
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kind: Service
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metadata:
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name: csi-metrics-cephfsplugin
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labels:
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app: csi-metrics
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spec:
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ports:
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- name: http-metrics
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port: 8080
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protocol: TCP
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targetPort: 8681
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selector:
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app: csi-cephfsplugin
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