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a/ Always use fully qualified image name
Not noticed if you're using Docker (or Docker Desktop), but the short container images are problematic for other containerization systems (most commonly will be seen by folks using podman / podman desktop).
b/ Update container to run as non-root.
Always best practice. Giving a numeric "USER" helps in container orchestration systems to permit "runAsNonRoot".
c/ Protect container contents when running.
By limiting to only one subdirectory to chown as the non root user, we protect the container from being modified after starting, e.g. this would prevent a flaw in the code from permitting an attacker to modify the web content to their own end.