ekklesiaandClaude Opus 5
886f8a70d2
https://updates.riverofglorymn.org/stable/latest.deb https://updates.riverofglorymn.org/canary/latest.deb A symlink beside each channel's manifest, pointing at the versioned package the manifest names. Deliberately not a second record of which version is current — the manifest stays the only answer to that, and the publish scripts derive the pointer from it rather than from anything they know themselves. The versioned files are never rewritten. A release uploads its package, then the manifest, then swaps the pointer by rename. Atomic, so nothing downloads a half-written pointer; and last, so the pointer can lag the manifest by a moment and can never lead it. A pointer that led the manifest would offer a package the channel had not published. Both latest.deb and manifest.json are served no-store on the update server. Cloudflare sits in front of it and caches .deb by extension, so without that header a room could be handed the previous release from an edge for hours. The versioned packages keep no such header because they are immutable and worth caching. The server change is one matcher in the Caddyfile's updates block, and it took three attempts to land for a reason worth recording: the Caddyfile is a FILE bind mount, so `mv` over it replaces the inode and the container goes on serving the old one. Two apparently successful reloads changed nothing. It is written through the mount now, and the host copy is identical so the next container restart is a no-op. Caddy was reloaded, never restarted; the church's other sites were not interrupted. Installing from a channel URL still does not move a machine onto that channel. CHANNEL in device.conf decides which manifest the updater follows, and the postinst only appends settings that are missing, so fetching the canary package by hand to repair a machine leaves it on stable. Verified end to end against the live server: both URLs deliver bytes whose sha256 matches their channel's manifest, both carry the no-store header, and the versioned package does not. Co-Authored-By: Claude Opus 5 <[email protected]>
80 lines
2.3 KiB
Bash
Executable File
80 lines
2.3 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$ROOT"
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if [[ $# -eq 1 ]]; then
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version="$1"
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package_name="ekklesia-classroom_${version}_amd64.deb"
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package_path="$ROOT/repo/packages/$package_name"
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if [[ ! -f "$package_path" ]]; then
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echo "Package does not exist locally:"
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echo "$package_path"
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exit 1
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fi
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hash="$(sha256sum "$package_path" | awk '{print $1}')"
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mkdir -p "$ROOT/repo/stable"
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cat > "$ROOT/repo/stable/manifest.json" <<EOF
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{
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"version": "$version",
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"package": "/packages/$package_name",
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"sha256": "$hash",
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"requires_reboot": true
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}
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EOF
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else
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if [[ ! -f "$ROOT/repo/canary/manifest.json" ]]; then
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echo "No local canary manifest exists."
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exit 1
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fi
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mkdir -p "$ROOT/repo/stable"
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cp "$ROOT/repo/canary/manifest.json" "$ROOT/repo/stable/manifest.json"
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version="$(python3 -c \
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'import json; print(json.load(open("repo/stable/manifest.json"))["version"])')"
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fi
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echo "Promoting $version to STABLE"
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rsync -av \
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-e ssh \
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"$ROOT/repo/stable/manifest.json" \
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classroom-control:/srv/ekklesia/classroom-updates/stable/manifest.json
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package_name="ekklesia-classroom_${version}_amd64.deb"
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# THE PERMANENT URL.
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#
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# .../stable/latest.deb is a symlink beside the manifest pointing at the
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# versioned package the manifest names, so there is one download address
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# that never changes and still no second place recording which version is
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# current. The manifest remains the only answer to that question.
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#
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# It is swapped AFTER the manifest, and by rename, for two reasons. A
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# rename is atomic, so nothing ever downloads a half-written pointer; and
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# going last means latest.deb can only ever lag the manifest by a moment,
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# never lead it — it can never offer a package the channel has not
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# published. The versioned file itself is never touched again once
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# uploaded.
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ssh classroom-control "
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set -e
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cd /srv/ekklesia/classroom-updates/stable
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test -f ../packages/$package_name
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ln -sfn ../packages/$package_name latest.deb.new
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mv -Tf latest.deb.new latest.deb
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"
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echo "https://updates.riverofglorymn.org/stable/latest.deb -> $package_name"
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echo
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echo "Ekklesia Classroom $version is now STABLE"
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echo "https://updates.riverofglorymn.org/stable/manifest.json"
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