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fix(builder): set ssl-cert-file in nix-builder-box nix.conf (cache substitution) #944

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fix(builder): set ssl-cert-file in nix-builder-box nix.conf (cache substitution) #944

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2fbaeb5
ci(notify-front-desk): grant id-token: write to restore brokered cros…
bdelanghe Jun 29, 2026
cdbe59b
fix(builder): set ssl-cert-file in nix-builder-box nix.conf (cache su…
bdelanghe Jun 29, 2026
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8 changes: 7 additions & 1 deletion .github/workflows/notify-front-desk.yml
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Original file line number Diff line number Diff line change
@@ -1,10 +1,16 @@
name: notify-front-desk
# Per-repo trigger: on issue/PR events, kick the central Front Desk sweep.
# Grants id-token: write so the OIDC → cf-token-broker mint propagates through
# the reusable chain (trigger-sync → front-desk-sync) — no secrets (prx-26bq).
# Without it the sweep fails open; the daily schedule + the brokered
# front-desk-add (instant per-repo add) remain the backstop.
on:
issues:
types: [opened, closed, reopened, labeled, unlabeled]
pull_request:
types: [opened, closed, reopened, labeled, unlabeled]
jobs:
sync:
permissions:
id-token: write # propagate OIDC to front-desk-sync's broker mint
uses: bounded-systems/gh-project-room/.github/workflows/trigger-sync.yml@main
secrets: inherit
7 changes: 6 additions & 1 deletion nix/oci/nix-builder-box.nix
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Expand Up @@ -41,7 +41,12 @@ let
cp /run/builder/authorized_keys /root/.ssh/authorized_keys
chmod 600 /root/.ssh/authorized_keys
fi
printf 'experimental-features = nix-command flakes\ntrusted-users = root\nbuild-users-group =\nsandbox = false\n' > /etc/nix/nix.conf
# ssl-cert-file in nix.conf (NOT just env): the remote-build `nix-store
# --serve` runs in an ssh session that does NOT inherit the image's
# SSL_CERT_FILE, so without this nix can't verify TLS to cache.nixos.org and
# falls back to building every dep from source (slow / OOMs). nix.conf is read
# regardless of env, fixing substitution for the builder protocol.
printf 'experimental-features = nix-command flakes\ntrusted-users = root\nbuild-users-group =\nsandbox = false\nssl-cert-file = ${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt\n' > /etc/nix/nix.conf
exec ${pkgs.openssh}/bin/sshd -D -e -f ${sshdConfig}
'';
in
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