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https://github.com/debarshiray/toolbox/ was planning to vendor libpod which I disagreed with. Let's document the advantages/disadvantages as they exist today. Signed-off-by: Colin Walters <walters@verbum.org>
44 lines
1.3 KiB
Markdown
44 lines
1.3 KiB
Markdown
# How to use libpod for custom/derivative projects
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libpod today is a Golang library and a CLI. The choice of interface you make has advantages and disadvantages.
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Running as a subprocess
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---
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Advantages:
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- Many commands output JSON
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- Works with languages other than Golang
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- Easy to get started
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Disadvantages:
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- Error handling is harder
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- May be slower
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- Can't hook into or control low-level things like how images are pulled
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Vendoring into a Go project
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---
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Advantages:
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- Significant power and control
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Disadvantages:
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- You are now on the hook for container runtime security updates (partially, `runc`/`crun` are separate)
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- Binary size
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- Potential skew between multiple libpod versions operating on the same storage can cause problems
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Varlink
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---
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Some code exists for this; splits the difference. Future uncertain.
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Making the choice
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A good question to ask first is: Do you want users to be able to use `podman` to manipulate the containers created by your project?
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If so, that makes it more likely that you want to run `podman` as a subprocess. If you want a separate image store and a fundamentally
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different experience; if what you're doing with containers is quite different from those created by the `podman` CLI,
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that may drive you towards vendoring. |