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.github.ci: treat cache.lassul.us as upstream cache in hestia
With the lazy /nix/store in the machine jobs, hestia's drain read every
cache.lassul.us-only input path to mirror it into the GitHub Actions
cache, downloading 375-760 MiB per job through the lazy store and
spending 1-4.5 min uploading to the Actions cache at 2-11 MiB/s (PR 65
run). Those paths are already in cache.lassul.us; niks3 uploads
everything newly built.
upstream-cache-key-names replaces hestia's default list, so it repeats
cache.nixos.org-1 next to cache.lassul.us-1. In the eval job,
filter-drv-closures applies the same keys to the drv closures; members
signed by cache.lassul.us are substituted from there by the later jobs.
author
Hermes
committer
lassulus
date
(Oct 17, 2026, 1:33 AM CEST)
commit
33dbe688
33dbe68879cca61a45c55c4b3bbbef5508de8e20
parent
02965f48
02965f489aea0742d049c65ba09c25db33bdc180
+3
+3
.github/workflows/ci.yml
+3
.github/workflows/ci.yml
···
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- uses: Mic92/hestia@v3
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with:
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upstream-cache-filter: true
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+
upstream-cache-key-names: cache.nixos.org-1 cache.lassul.us-1
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filter-drv-closures: true
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# the niks3 client of all jobs and the lazy store of the machine jobs,
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# the others substitute them
···
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- uses: Mic92/hestia@v3
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with:
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upstream-cache-filter: true
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upstream-cache-key-names: cache.nixos.org-1 cache.lassul.us-1
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wait-manifest-version: ${{ needs.eval.outputs.manifest-version }}
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- env:
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NIKS3: ${{ needs.eval.outputs.niks3 }}
···
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- uses: Mic92/hestia@v3
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with:
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upstream-cache-filter: true
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upstream-cache-key-names: cache.nixos.org-1 cache.lassul.us-1
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wait-manifest-version: ${{ needs.shared.outputs.manifest-version }}
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- env:
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NIKS3: ${{ needs.eval.outputs.niks3 }}