After adding the securityContext to both the controller and node, the pod was no longer able to mount or access the LUKS-encrypted volumes. This issue was traced to restrictive security settings that prevented necessary operations such as mounting, decrypting, and interacting with the LUKS-encrypted block devices.
Cause:
The restrictive security context blocked certain operations required by the CSI driver or the pod itself to manage the encrypted volumes. In particular, settings like allowPrivilegeEscalation: false and seccompProfile: RuntimeDefault were blocking essential system calls or preventing the pod from escalating privileges when needed.
Changes Made:
To resolve the issue, the following changes were applied:
Set privileged: true to allow full access to host resources for managing encrypted volumes.
Enabled allowPrivilegeEscalation: true to ensure the pod can escalate privileges when necessary.
Disabled seccomp restrictions temporarily by setting seccompProfile: Unconfined to allow system calls needed by LUKS or the CSI driver.
Set readOnlyRootFilesystem: false to allow necessary write operations.
These changes allow the pod and node to successfully mount and interact with the LUKS-encrypted volumes by ensuring that no critical operations are blocked by the security context.
Problem Summary:
After adding the
securityContextto both the controller and node, the pod was no longer able to mount or access the LUKS-encrypted volumes. This issue was traced to restrictive security settings that prevented necessary operations such as mounting, decrypting, and interacting with the LUKS-encrypted block devices.Cause:
The restrictive security context blocked certain operations required by the CSI driver or the pod itself to manage the encrypted volumes. In particular, settings like
allowPrivilegeEscalation: falseandseccompProfile: RuntimeDefaultwere blocking essential system calls or preventing the pod from escalating privileges when needed.Changes Made:
To resolve the issue, the following changes were applied:
privileged: trueto allow full access to host resources for managing encrypted volumes.allowPrivilegeEscalation: trueto ensure the pod can escalate privileges when necessary.seccompProfile: Unconfinedto allow system calls needed by LUKS or the CSI driver.readOnlyRootFilesystem: falseto allow necessary write operations.These changes allow the pod and node to successfully mount and interact with the LUKS-encrypted volumes by ensuring that no critical operations are blocked by the security context.