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Allow passthrough of securityContext.readOnlyRootFilesystem in Helm chart#43332

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tnichols89 wants to merge 2 commits intofleetdm:mainfrom
tnichols89:helm-chart-ro-fs
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Allow passthrough of securityContext.readOnlyRootFilesystem in Helm chart#43332
tnichols89 wants to merge 2 commits intofleetdm:mainfrom
tnichols89:helm-chart-ro-fs

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@tnichols89 tnichols89 commented Apr 9, 2026

Issue

Closes #43330

Description

This PR allows self-hosted, Kubernetes-based Fleet users to configure securityContext.readOnlyRootFilesystem in values.yaml, which is then propagated down to the deployment.yaml template.

This change provides a convenient mechanism for users to fix a known issue while preserving the current default behavior.

Testing

The underlying deployment.yaml change has been tested in a standard Google Kubernetes Engine cluster, and is confirmed to fix the linked issue when using either Ubuntu-based or Container-Optimized OS (COS)-based containerd container runtimes in GKE.

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Read-only file system error on software installation in web UI due to Helm chart deployment.yaml template

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