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tufclient: authenticate repo requests as this machine - #82
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A server could not tell which machine was fetching a repo, so a per-machine repo was readable by anyone who knew its URL. A repo can now set an auth table of type "wimse" with an audience. Requests to its metadata host then carry this machine's workload identity token, from amutablectl's identity agent, and an RFC 9421 signature by a key quarry-client keeps in memory. Requests to other hosts stay unsigned. Repos without the setting fetch as before. Signed-off-by: Joaquim Rocha <joaquim@amutable.com>
Any failure to fetch a repo's first root.json skipped the repo. A machine that could not authenticate then updated nothing and still reported success. Now only a missing root.json, which means the repo may not exist yet, skips the repo. Any other failure is an error, so one repo that fails this way stops the whole run. Signed-off-by: Joaquim Rocha <joaquim@amutable.com>
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This PR allows quarry to fetch the repo data using WIMSE. As we need for https://linear.app/amutable/issue/ENG-233/quarry-restrict-access-to-userdata-based-on-wit-in-cdn .
See also https://github.com/amutable-systems/amutablectl/pull/193