Kubernetes
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Why this exists A "distroless" or otherwise minimal production image — deliberately built with no shell, no package manager, nothing beyond the one binary it runs — is smaller and has a much smaller attack surface. It…
Debugging a Container With No Shell: Ephemeral Debug Containers
A real wrapper around kubectl debug's ephemeral containers, proven against a genuinely shell-less Pod — a plain kubectl exec fails with "executable file not found in $PATH", then a real busybox ephemeral container attached to it sees the target's process (PID 1) through a shared process namespace, while still having its own separate filesystem.
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