STOR-2126: Enable readOnlyFileSystem

[dfajmon]

Enable readOnlyFileSystem in the operator for security concerns.
Recommended for all containers running in kubernetes.

[openshift-ci-robot]

@dfajmon: This pull request references STOR-2126 which is a valid jira issue.

In response to this:

/hold

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[dfajmon]

/retest

[dfajmon]

/retest

[openshift-ci-robot]

@dfajmon: This pull request references STOR-2126 which is a valid jira issue.

In response to this:

Enable readOnlyFileSystem in the operator for security concerns.
Recommended for all containers running in kubernetes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[jsafrane]

/lgtm
/approve

[dfajmon]

/unhold

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dfajmon, jsafrane

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[openshift-ci]

New changes are detected. LGTM label has been removed.

[ropatil010]

/retest-required

[ropatil010]

Payload: 4.19.0-0.test-2025-03-25-131548-ci-ln-35vzyxt-latest
clusterbot: build 4.19,#229

// OCP-80702 [CSI-Driver-Operator] Check the deployments have parameter readOnlyRootFilesystem set to true and are up and running.
oc get deployment -n openshift-cluster-storage-operator
NAME READY UP-TO-DATE AVAILABLE AGE
cluster-storage-operator 1/1 1 1 7h6m
csi-snapshot-controller 2/2 2 2 7h3m
csi-snapshot-controller-operator 1/1 1 1 7h6m

oc get deployment/csi-snapshot-controller-operator -n openshift-cluster-storage-operator -o yaml
It has parameter readOnlyRootFilesystem: true

// OCP-80704 [CSI-Driver-Operator] Check the mount permissions should be set to "ro"
oc exec -it deployment/csi-snapshot-controller-operator -n openshift-cluster-storage-operator -- sh
sh-5.1$ mount | grep "on /" OR mount | grep "overlay"
overlay on / type overlay (ro,relatime,context="system_u:object_r:container_file_t:s0:c9,c12",lowerdir=/var/lib/containers/storage/overlay/l/QBRN47B5FD6CRJQMP2EKKY3JOQ:/var/lib/containers/storage/overlay/l/3JSVLRKVCFCN6PWMX74DDIO7YR:/var/lib/containers/storage/overlay/l/5A6CQRFXHWROGWUNA7ZGTQOSIN:/var/lib/containers/storage/overlay/l/WUPLY4XVHNYRYO2JF3ZHTRWEYW:/var/lib/containers/storage/overlay/l/CRPZJG6ADDQV7245Q3EE3RKNOK,upperdir=/var/lib/containers/storage/overlay/bd7e833ee454db5dd0bbc7c573cef5f113641c4b2832e7e33ea681b32c482837/diff,workdir=/var/lib/containers/storage/overlay/bd7e833ee454db5dd0bbc7c573cef5f113641c4b2832e7e33ea681b32c482837/work,volatile)

// OCP-80705 [CSI-Driver-Operator] Write data inside root volume should fail as Read-only file system.
sh-5.1$ touch /testfile.txt
touch: cannot touch '/testfile.txt': Read-only file system

// Regression Run
https://jenkins-csb-openshift-qe-mastern.dno.corp.redhat.com/job/ocp-common/job/ginkgo-test/290859/console
03-26 00:39:30.019 error: 1 fail, 116 pass, 169 skip (3h53m18s)
03-26 00:39:30.019 [sig-storage] STORAGE NonHyperShiftHOST-ROSA-OSD_CCS-Longduration-NonPreRelease-ARO-Author:jiasun-High-37783-[storage] Metric should report storage volume numbers per storage plugins and volume mode [Serial]
known issue: https://issues.redhat.com/browse/OCPBUGS-44815

[dfajmon]

/retest-required

[openshift-ci]

@dfajmon: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/okd-scos-e2e-aws-ovn	9055a17	link	false	/test okd-scos-e2e-aws-ovn

Full PR test history. Your PR dashboard.

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