Application Containerization

Updated 31 Jul 2026

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def
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  packaging an application's code and dependencies into a standardized, portable, self-contained unit (a container)
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characteristics
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  runs as an isolated process/sandbox — apps in separate containers can't interact with each other directly
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  a container image is lightweight, uses the host's kernel (unlike full virtualization), and provides secure separation between applications
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distinguish from
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  virtualization — running many different full operating systems on shared hardware, which adds more overhead and complexity than containerization
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related
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  Virtualization
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cards
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  Distinguish containerization from virtualization
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    Containers share the host's kernel and are lightweight; virtualization runs many full separate guest operatin systems, adding much more overhead

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