Use numeric uid:gid in Dockerfile to support Tanzu's PSP #720
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- Fixes issue "Error: container has runAsNonRoot and image has non-numeric user (nonroot), cannot verify user is non-root"
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Please review and merge @freeznet @jiangpengcheng @nlu90 . Thanks! |
freeznet
approved these changes
Feb 21, 2024
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Motivation
Tanzu Kubernetes Grid 1.22.9 requires that docker images have numeric userids. Running an distroless nonroot image with "USER nonroot:nonroot" will fail to start with this error when default pod security policy is enabled:
"Error: container has runAsNonRoot and image has non-numeric user (nonroot), cannot verify user is non-root"
Modifications
Replace
USER nonroot:nonrootwithUSER 65532:65532.Similar solution is commonly used for images using distroless nonroot base image.
For example, https://github.com/grafana/loki/blob/main/operator/Dockerfile#L26
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