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lago-project / lago

Ad-hoc virtual testing environment framework
http://lago.readthedocs.org
GNU General Public License v2.0
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Use NFS-over-vsock to expose yum-repos for faster deployments #674

Open rgolangh opened 6 years ago

rgolangh commented 6 years ago

To make the deployment faster and more performent we can share the lago host rpm-directory with the guest, by passing the network usage needed to perform installations.

This proposal may have 2 steps: 1) replace the internal http server for rpms with something more performant till NFS-over-vsock is ready and then 2) drop the http service, share the host rpm dir with all the guests, and mount it on the guests, tweak their local repository to point to the local filesystem.

NFS-over-vsock https://vmsplice.net/~stefan/stefanha-connectathon-2016.pdf

ifireball commented 6 years ago

The yum repo functionality is not built into Lago core, it is part of lago-ost-plugin.

We could add generic NFS-over-sock to Lago, and that can be useful for various things, but we need to ensure it is available on all platforms that Lago targets (AFAIK EL7 and FC24-27 ATM)

Having said that, I don't think the bottleneck is in the repo->VM transfer of packages. If anywhere, its probably in the repo construction process. I'd actually prefer if the internal repo remains an HTTP server because that provides better emulation for how end users consume packages.

ifireball commented 6 years ago

This is possibly a duplicate of #92