Under the Hood
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DNSresolving host
TCPconnecting
TLShandshake
HTTPrequesting
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Sorting
Trees
Graphs
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Under the Hood
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Namespaces, cgroups, overlay layers — a container is a process the kernel has been asked to lie to
Start a container and it feels like you booted a tiny machine. You did not. Run ps on the host and the process is right there in the same list as your text editor, scheduled by the same scheduler. There is no guest kernel, no virtual hardware, and nothing being emulated.
Kernel features
Active Recall
You run an Alpine-based image on an Ubuntu host. What does `uname -r` report inside the container?