526 lines
25 KiB
Bash
526 lines
25 KiB
Bash
#!/usr/bin/env bash
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#
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# sync.sh - Mirror selected packages from third-party RPM repos into ONE
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# combined local repo consumable by AlmaLinux clients (dnf /
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# PackageKit / GNOME Software / Discover) - WITHOUT pulling in or
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# exposing packages that AlmaLinux itself already ships
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# (AppStream, BaseOS, Extras, CRB/"Extras for Enterprise").
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#
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# ALL sources defined in the YAML end up in a SINGLE repo
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# (REPO_BASE_DIR/pkgs/) with a SINGLE client-facing .repo file
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# (CLIENT_REPO_DIR/mirror.repo) - clients only ever add one repo, no matter
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# how many sources you configure.
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#
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# What it does, per entry in the YAML source list:
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# 1. Registers the source repo temporarily and resolves the full
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# dependency closure of the requested packages, using the source repo
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# AND the local AlmaLinux repos (needed so resolution succeeds, e.g.
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# glibc-style deps that only exist in AlmaLinux).
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# 2. Throws away every RPM in that closure that AlmaLinux itself provides.
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# Only RPMs that genuinely only exist in the third-party repo are kept.
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# 3. Verifies each kept RPM against the source's own gpgkey (if given in
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# the YAML), then STRIPS the original signature and RE-SIGNS it with
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# the mirror's own GPG key. Clients therefore only ever need to trust
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# one key (this mirror's), never the individual upstream repos' keys.
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# 4. Moves the signed RPMs into the single shared repo directory
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# (REPO_BASE_DIR/pkgs/).
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# Once all sources have been processed, the script rebuilds repo metadata
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# for that ONE directory with createrepo_c and generates AppStream "generic
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# component" metadata for ONLY the packages explicitly listed under
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# "packages:" across all sources (never for pulled-in dependencies),
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# injecting it once into that same repo. Only those show up as installable
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# items in GNOME Software/Discover.
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#
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# Set "metadata_only: true" on a source to skip steps 2-4 entirely for that
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# source: no RPMs are downloaded/mirrored, only curated AppStream visibility
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# is contributed to the combined repo. Use this when baseurl already points
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# at a repo your clients have enabled directly (e.g. AlmaLinux's own
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# AppStream repo, which on AlmaLinux 10 ships dotnet-* itself) - you just
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# want to narrow down what shows up in Discover without duplicating RPM
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# content clients can already get natively.
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#
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# NOTE ON NAME COLLISIONS: if two different sources define an RPM with the
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# exact same NEVRA (name-version-release.arch), the later one silently wins
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# in the shared directory (harmless - it's the same package). If two
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# sources define the SAME PACKAGE NAME with genuinely different content,
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# that's not supported here - keep package names distinct across sources.
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#
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# IMPORTANT LIMITATION:
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# GNOME Software's curated "Explore" front page only lists packages that
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# ship a real desktop-application AppStream component (icon, screenshots,
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# .desktop file). A "generic" component (what this script generates for
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# CLI tools/SDKs/runtimes) makes the package installable from Discover and
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# shows up in search/details, but it will not appear on that curated front
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# page. This is GNOME Software/appstreamcli behaviour and cannot be fixed
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# by repo metadata alone.
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#
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# SECURITY NOTE ON RE-SIGNING:
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# The mirror's private signing key is generated once (unattended, without
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# a passphrase - standard practice for automated repo signing) and kept
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# under GPG_HOME. Only the exported PUBLIC key ends up in REPO_BASE_DIR
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# where clients can fetch it. GPG_HOME itself must never be exposed via
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# nginx/the webserver and should live on storage only the sync process can
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# read. Anyone who can read GPG_HOME can sign packages as your mirror -
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# treat it like any other private key material.
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#
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# A revocation certificate is generated alongside the key on first run
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# (GPG_HOME/revocation-cert.asc) - since the key never expires, this
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# certificate is the ONLY way to invalidate it later if it's ever
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# compromised. Copy it to secure, offline storage right after first
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# startup; see the log output / README for the exact command.
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#
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# Requires: dnf, dnf-plugins-core (for "dnf download"), createrepo_c,
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# modifyrepo_c, rpm-sign (rpmsign/rpmkeys), gnupg2, python3,
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# python3-pyyaml, git (if fetching the source list from git), curl.
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#
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# Run as root (needs to write a temporary .repo file to /etc/yum.repos.d).
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set -euo pipefail
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# ---------------------------------------------------------------------------
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# Configuration (override via environment, e.g. in the systemd unit/cron job)
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# ---------------------------------------------------------------------------
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# Where the YAML source list lives. Either point SOURCES_GIT_REPO at a git
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# repo (SOURCES_YAML_FILE is the path *inside* that repo), or leave
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# SOURCES_GIT_REPO empty and point SOURCES_YAML_FILE at a local file.
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SOURCES_GIT_REPO="${SOURCES_GIT_REPO:-}"
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SOURCES_GIT_BRANCH="${SOURCES_GIT_BRANCH:-main}"
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SOURCES_YAML_FILE="${SOURCES_YAML_FILE:-sources.yaml}"
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# Local working/output paths.
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WORK_DIR="${WORK_DIR:-/var/cache/rpm-mirror-sync}"
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REPO_BASE_DIR="${REPO_BASE_DIR:-/srv/repo}"
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CLIENT_REPO_DIR="${CLIENT_REPO_DIR:-${REPO_BASE_DIR}/client-repos}"
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# The ONE combined repo directory all sources' packages end up in.
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PKG_DIR="${REPO_BASE_DIR}/pkgs"
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# Base URL under which REPO_BASE_DIR is actually served to clients (web
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# server / reverse proxy in front of REPO_BASE_DIR). Used only to generate
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# ready-to-use .repo files for clients.
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CLIENT_BASE_URL="${CLIENT_BASE_URL:-http://mirror.example.local/repo}"
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# repoids of AlmaLinux's own repos on THIS machine, as shown by
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# `dnf repolist`. Adjust to match your system if they differ.
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# ("Extras for Enterprise" is the "extras" repo in AlmaLinux 10 naming; crb
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# is CodeReady Builder / "extras-common" on some setups - check your
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# `dnf repolist` output and adjust below.)
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ALMA_REPO_IDS="${ALMA_REPO_IDS:-baseos appstream extras crb}"
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# The mirror's own signing identity. A key is generated once (on first run)
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# under GPG_HOME and reused on every subsequent run - make sure GPG_HOME
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# points at persistent storage (a volume), or you'll get a new key (and
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# therefore a trust-breaking change for clients) on every restart.
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GPG_HOME="${GPG_HOME:-${WORK_DIR}/gnupg}"
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GPG_KEY_NAME="${GPG_KEY_NAME:-RPM Mirror}"
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GPG_KEY_EMAIL="${GPG_KEY_EMAIL:-rpm-mirror@example.local}"
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MIRROR_GPG_KEY_FILE="${REPO_BASE_DIR}/RPM-GPG-KEY-mirror"
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LOG_TAG="rpm-mirror-sync"
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# ---------------------------------------------------------------------------
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# Helpers
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# ---------------------------------------------------------------------------
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log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "${WORK_DIR}/sync.log" >&2; }
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die() { log "ERROR: $*"; exit 1; }
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require_cmd() {
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command -v "$1" >/dev/null 2>&1 || die "required command '$1' not found (install it first)"
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}
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cleanup() {
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# Remove any temp source .repo files we created, even on failure.
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if [[ -n "${TEMP_REPO_FILES:-}" ]]; then
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for f in "${TEMP_REPO_FILES[@]}"; do
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rm -f "$f"
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done
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fi
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}
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trap cleanup EXIT
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SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
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HELPER="${SCRIPT_DIR}/sync_helpers.py"
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# ---------------------------------------------------------------------------
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# Preconditions
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# ---------------------------------------------------------------------------
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[[ $EUID -eq 0 ]] || die "must run as root (writes to /etc/yum.repos.d and ${REPO_BASE_DIR})"
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for c in dnf createrepo_c modifyrepo_c rpm rpmsign rpmkeys gpg python3 curl gzip; do
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require_cmd "$c"
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done
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[[ -f "$HELPER" ]] || die "sync_helpers.py not found next to sync.sh (expected: $HELPER)"
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python3 -c "import yaml" 2>/dev/null || die "python3-pyyaml not installed (dnf install -y python3-pyyaml)"
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mkdir -p "$WORK_DIR" "$REPO_BASE_DIR" "$CLIENT_REPO_DIR" "$PKG_DIR"
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# ---------------------------------------------------------------------------
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# Mirror signing key: generate once, reuse forever, export the public part
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# ---------------------------------------------------------------------------
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MIRROR_GPG_KEY_ID=""
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REVOCATION_CERT_FILE="${GPG_HOME}/revocation-cert.asc"
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init_mirror_gpg_key() {
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mkdir -p "$GPG_HOME"
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chmod 700 "$GPG_HOME"
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if [[ -z "$(gpg --homedir "$GPG_HOME" --list-secret-keys --with-colons 2>/dev/null)" ]]; then
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log "No mirror signing key found under ${GPG_HOME} - generating one (one-time)..."
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gpg --homedir "$GPG_HOME" --batch --pinentry-mode loopback --passphrase '' \
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--quick-generate-key "${GPG_KEY_NAME} <${GPG_KEY_EMAIL}>" rsa4096 sign never \
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|| die "failed to generate mirror GPG signing key"
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# GnuPG >= 2.1 automatically writes a revocation certificate under
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# openpgp-revocs.d/<fingerprint>.rev as part of key generation itself
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# (visible in the gpg output above: "revocation certificate stored
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# as ..."). We just need to copy it to a known, stable path - no
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# need to (fragile-ly) drive gpg's interactive --gen-revoke menu
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# ourselves, which behaves differently across gpg versions.
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local auto_revoc
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auto_revoc="$(find "${GPG_HOME}/openpgp-revocs.d" -maxdepth 1 -name '*.rev' 2>/dev/null | head -n1)"
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[[ -n "$auto_revoc" && -s "$auto_revoc" ]] \
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|| die "expected GnuPG to auto-generate a revocation certificate under ${GPG_HOME}/openpgp-revocs.d/ but none was found"
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cp "$auto_revoc" "$REVOCATION_CERT_FILE"
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chmod 600 "$REVOCATION_CERT_FILE"
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log "!!! Revocation certificate written to: ${REVOCATION_CERT_FILE}"
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log "!!! Copy it to secure, OFFLINE storage now, e.g.:"
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log "!!! docker compose cp syncer:${REVOCATION_CERT_FILE} ./mirror-key-revocation-cert.asc"
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log "!!! It is the only way to invalidate this key if it is ever compromised -"
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log "!!! it never expires, so it needs the same protection as the private key."
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fi
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MIRROR_GPG_KEY_ID="$(gpg --homedir "$GPG_HOME" --list-secret-keys --with-colons \
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| awk -F: '/^sec:/ {print $5; exit}')"
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[[ -n "$MIRROR_GPG_KEY_ID" ]] || die "could not determine mirror GPG key id"
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# rpmsign/rpm --addsign etc. read the signing identity from macros.
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cat > "${HOME:-/root}/.rpmmacros" <<EOF
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%_gpg_name ${MIRROR_GPG_KEY_ID}
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%_gpg_path ${GPG_HOME}
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%_signature gpg
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EOF
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# Publish the PUBLIC key once at the repo root. This is the only key
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# clients will ever need, no matter how many upstream sources exist.
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gpg --homedir "$GPG_HOME" --armor --export "$MIRROR_GPG_KEY_ID" > "$MIRROR_GPG_KEY_FILE"
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log "Mirror signing key ready: ${MIRROR_GPG_KEY_ID} (public key: ${MIRROR_GPG_KEY_FILE})"
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}
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init_mirror_gpg_key
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# ---------------------------------------------------------------------------
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# Fetch the YAML source list
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# ---------------------------------------------------------------------------
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resolve_yaml_path() {
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if [[ -n "$SOURCES_GIT_REPO" ]]; then
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if [[ "$SOURCES_YAML_FILE" == /* ]]; then
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die "SOURCES_GIT_REPO is set, but SOURCES_YAML_FILE ('${SOURCES_YAML_FILE}') looks like an absolute path. When pulling the source list from git, SOURCES_YAML_FILE must be a path RELATIVE to that repo's root (e.g. 'sources.yaml' or 'config/sources.yaml') - not the '/config/...' path used for the local bind-mount option. Fix SOURCES_YAML_FILE in .env."
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fi
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local clone_dir="${WORK_DIR}/sources-repo"
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if [[ -d "${clone_dir}/.git" ]]; then
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log "Updating source list git repo..."
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# >&2 is critical here: resolve_yaml_path's stdout is captured
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# by the caller via $(...) to get the final path. "git reset
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# --hard" prints "HEAD is now at <hash> <message>" to STDOUT by
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# default - without this redirect that text gets appended to
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# YAML_PATH, producing a garbage multi-line "path" that then
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# fails the next -f check with a confusing error.
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git -C "$clone_dir" fetch --depth 1 origin "$SOURCES_GIT_BRANCH" >&2
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git -C "$clone_dir" reset --hard "origin/${SOURCES_GIT_BRANCH}" >&2
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else
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log "Cloning source list git repo..."
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rm -rf "$clone_dir"
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git clone --depth 1 --branch "$SOURCES_GIT_BRANCH" "$SOURCES_GIT_REPO" "$clone_dir" >&2
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fi
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echo "${clone_dir}/${SOURCES_YAML_FILE}"
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else
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echo "$SOURCES_YAML_FILE"
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fi
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}
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YAML_PATH="$(resolve_yaml_path)"
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[[ -f "$YAML_PATH" ]] || die "source YAML not found: $YAML_PATH"
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SOURCES_JSON="$(python3 "$HELPER" parse-yaml "$YAML_PATH")" || die "failed to parse $YAML_PATH"
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SOURCE_COUNT="$(python3 -c 'import json,sys; print(len(json.load(sys.stdin)))' <<<"$SOURCES_JSON")"
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log "Loaded $SOURCE_COUNT source(s) from $YAML_PATH"
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# ---------------------------------------------------------------------------
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# Per-source sync
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# ---------------------------------------------------------------------------
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declare -a TEMP_REPO_FILES=()
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# Build --enablerepo flags for the AlmaLinux repos as a bash array once.
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declare -a ALMA_ENABLE_FLAGS=()
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for r in $ALMA_REPO_IDS; do
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ALMA_ENABLE_FLAGS+=( "--enablerepo=${r}" )
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done
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sync_one_source() {
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local name="$1" baseurl="$2" gpgkey="$3" packages_json="$4" metadata_only="${5:-false}"
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local repoid="mirror-src-${name}"
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local repo_file="/etc/yum.repos.d/${repoid}.repo"
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local tmp_dir="${WORK_DIR}/${name}/download"
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local list_dir="${WORK_DIR}/${name}"
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# This source's contribution to the combined AppStream metadata: one
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# "name<TAB>summary" line per explicitly requested package. Collected
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# here, merged across all sources, and turned into ONE appstream.xml
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# after the whole source loop finishes.
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local entries_tsv="${list_dir}/appstream-entries.tsv"
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log "=== Syncing source '${name}' (metadata_only=${metadata_only}) ==="
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mkdir -p "$tmp_dir" "$list_dir"
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: > "$entries_tsv"
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# readarray of requested top-level package names for this source.
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mapfile -t packages < <(python3 -c '
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import json,sys
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for p in json.load(sys.stdin):
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print(p)
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' <<<"$packages_json")
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[[ ${#packages[@]} -gt 0 ]] || die "source '${name}' has no packages"
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# --- 1. Register the source repo temporarily -------------------------
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{
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echo "[${repoid}]"
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echo "name=Mirror source: ${name}"
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echo "baseurl=${baseurl}"
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echo "enabled=1"
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if [[ -n "$gpgkey" ]]; then
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echo "gpgcheck=1"
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echo "gpgkey=${gpgkey}"
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else
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echo "gpgcheck=0"
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fi
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} > "$repo_file"
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TEMP_REPO_FILES+=( "$repo_file" )
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dnf clean expire-cache --disablerepo='*' --enablerepo="$repoid" >/dev/null 2>&1 || true
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# --- metadata_only sources: curate Discover/GNOME Software visibility
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# WITHOUT mirroring any RPM content. Use this when baseurl already
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# points at a repo your clients have enabled directly (e.g. AlmaLinux's
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# own AppStream repo, which ships dotnet-* itself on AlmaLinux 10) - the
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# actual package install is then resolved by dnf from that repo as
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# normal; this source only contributes AppStream "generic component"
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# data for the packages listed to the combined repo built after the
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# source loop, so ONLY those show up as installable in Discover instead
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# of AlmaLinux's entire (huge) AppStream catalog.
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# PRECONDITION: clients must have the repo(s) that actually provide
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# these packages enabled already (true for any stock AlmaLinux install -
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# baseos/appstream/extras/crb are on by default).
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if [[ "$metadata_only" == "true" ]]; then
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for pkg in "${packages[@]}"; do
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local summary
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summary="$(dnf repoquery -y --disablerepo='*' --enablerepo="$repoid" \
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--qf '%{summary}' "$pkg" 2>/dev/null | head -n1)"
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printf '%s\t%s\n' "$pkg" "$summary" >> "$entries_tsv"
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done
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log "Source '${name}': metadata_only - queued AppStream visibility for ${#packages[@]} package(s), no RPMs mirrored"
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rm -f "$repo_file"
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TEMP_REPO_FILES=( "${TEMP_REPO_FILES[@]/$repo_file}" )
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return
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fi
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# --- 2. List everything the source repo itself provides --------------
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# (used later to decide "does this RPM genuinely come from the source,
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# or did AlmaLinux already have it".)
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local source_nevra_list="${list_dir}/source-nevra.txt"
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dnf repoquery -y --disablerepo='*' --enablerepo="$repoid" \
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--qf '%{name}-%{version}-%{release}.%{arch}' -a \
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> "$source_nevra_list" \
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|| die "failed to query source repo '${name}' (check baseurl/gpgkey)"
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[[ -s "$source_nevra_list" ]] || die "source repo '${name}' returned no packages - check baseurl"
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# --- 3. Resolve full dependency closure for the requested packages ---
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# Enable the source repo AND the local AlmaLinux repos so dependency
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# resolution succeeds even for deps AlmaLinux normally provides -
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# we filter those back out in step 4.
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rm -rf "$tmp_dir"; mkdir -p "$tmp_dir"
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log "Resolving + downloading dependency closure for: ${packages[*]}"
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dnf download -y --resolve --alldeps \
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--destdir="$tmp_dir" \
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--disablerepo='*' \
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--enablerepo="$repoid" \
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"${ALMA_ENABLE_FLAGS[@]}" \
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"${packages[@]}" \
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|| die "dnf download failed for source '${name}'"
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# --- 4. Drop everything AlmaLinux already provides, verify + re-sign --
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# the rest with the mirror's own key -----------------------------------
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local verify_dbpath="${list_dir}/verify-rpmdb"
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if [[ -n "$gpgkey" ]]; then
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local source_gpgkey_file="${list_dir}/source-gpgkey.asc"
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curl -fsSL "$gpgkey" -o "$source_gpgkey_file" \
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|| die "could not fetch gpgkey for source '${name}' from ${gpgkey}"
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rm -rf "$verify_dbpath"; mkdir -p "$verify_dbpath"
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rpm --dbpath "$verify_dbpath" --initdb
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rpm --dbpath "$verify_dbpath" --import "$source_gpgkey_file" \
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|| die "could not import gpgkey for source '${name}'"
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else
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log " WARNING: source '${name}' has no gpgkey configured - skipping upstream signature verification"
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fi
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local kept=0 dropped=0 kept_requested=0 kept_dependency=0
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for f in "$tmp_dir"/*.rpm; do
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[[ -e "$f" ]] || continue
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local base; base="$(basename "$f" .rpm)"
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if ! grep -qxF "$base" "$source_nevra_list"; then
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log " dropping (provided by AlmaLinux): $base"
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rm -f "$f"
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dropped=$((dropped + 1))
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continue
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fi
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if [[ -n "$gpgkey" ]]; then
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rpmkeys --dbpath "$verify_dbpath" --checksig "$f" >/dev/null 2>&1 \
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|| die "signature verification FAILED for '${base}' from source '${name}' - refusing to mirror it (tampered download or wrong gpgkey configured)"
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fi
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# Strip the upstream signature and sign with the mirror's own key,
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# so clients only ever need to trust MIRROR_GPG_KEY_FILE.
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rpmsign --resign "$f" >/dev/null \
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|| die "failed to re-sign '${base}' with the mirror key"
|
|
|
|
# Label each kept package as explicitly "requested" (listed under
|
|
# packages: in the YAML) or a pulled-in "dependency" - packages the
|
|
# requested ones need but AlmaLinux doesn't provide, so they have to
|
|
# be mirrored too or `dnf install <requested>` breaks on clients.
|
|
# This is purely informational (log output); both kinds are kept.
|
|
local pkg_name tag
|
|
pkg_name="$(rpm -qp --qf '%{NAME}' "$f" 2>/dev/null)"
|
|
tag="dependency"
|
|
for req in "${packages[@]}"; do
|
|
if [[ "$pkg_name" == "$req" ]]; then
|
|
tag="requested"
|
|
break
|
|
fi
|
|
done
|
|
if [[ "$tag" == "requested" ]]; then
|
|
kept_requested=$((kept_requested + 1))
|
|
local summary
|
|
summary="$(rpm -qp --qf '%{SUMMARY}' "$f" 2>/dev/null)"
|
|
printf '%s\t%s\n' "$pkg_name" "$summary" >> "$entries_tsv"
|
|
else
|
|
kept_dependency=$((kept_dependency + 1))
|
|
fi
|
|
log " keeping (${tag}): $base"
|
|
|
|
mv "$f" "${PKG_DIR}/"
|
|
kept=$((kept + 1))
|
|
done
|
|
log "Source '${name}': kept ${kept} package(s) - ${kept_requested} explicitly requested + ${kept_dependency} pulled-in third-party dependencies (re-signed with mirror key), dropped ${dropped} AlmaLinux-provided package(s)"
|
|
[[ $kept -gt 0 ]] || die "nothing kept for source '${name}' - check baseurl/package names"
|
|
|
|
# --- cleanup temp repo file for this source ---------------------------
|
|
rm -f "$repo_file"
|
|
TEMP_REPO_FILES=( "${TEMP_REPO_FILES[@]/$repo_file}" )
|
|
}
|
|
|
|
# Iterate over sources (JSON array -> one JSON object per line via jq-less python)
|
|
while IFS= read -r src_json; do
|
|
name="$(python3 -c 'import json,sys;print(json.loads(sys.argv[1])["name"])' "$src_json")"
|
|
baseurl="$(python3 -c 'import json,sys;print(json.loads(sys.argv[1])["baseurl"])' "$src_json")"
|
|
gpgkey="$(python3 -c 'import json,sys;print(json.loads(sys.argv[1]).get("gpgkey",""))' "$src_json")"
|
|
pkgs_json="$(python3 -c 'import json,sys;print(json.dumps(json.loads(sys.argv[1])["packages"]))' "$src_json")"
|
|
metadata_only="$(python3 -c 'import json,sys;print(str(bool(json.loads(sys.argv[1]).get("metadata_only", False))).lower())' "$src_json")"
|
|
sync_one_source "$name" "$baseurl" "$gpgkey" "$pkgs_json" "$metadata_only"
|
|
done < <(python3 -c '
|
|
import json,sys
|
|
for s in json.load(sys.stdin):
|
|
print(json.dumps(s))
|
|
' <<<"$SOURCES_JSON")
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Build the ONE combined repo from everything all sources contributed
|
|
# ---------------------------------------------------------------------------
|
|
|
|
createrepo_c --update "$PKG_DIR" >/dev/null
|
|
|
|
# Merge every source's appstream-entries.tsv (written during its own
|
|
# processing above) into one de-duplicated list, then build ONE AppStream
|
|
# metadata blob for the single shared repo. Positional arg (not stdin) for
|
|
# the same reason noted elsewhere in this script: "python3 -" already
|
|
# consumes stdin to read the script itself.
|
|
COMBINED_ENTRIES_JSON="$(python3 - "$WORK_DIR" <<'PYEOF'
|
|
import glob, json, os, sys
|
|
|
|
work_dir = sys.argv[1]
|
|
seen = {}
|
|
for f in sorted(glob.glob(os.path.join(work_dir, "*", "appstream-entries.tsv"))):
|
|
try:
|
|
with open(f, encoding="utf-8") as fh:
|
|
for line in fh:
|
|
line = line.rstrip("\n")
|
|
if not line:
|
|
continue
|
|
parts = line.split("\t", 1)
|
|
name = parts[0]
|
|
summary = parts[1] if len(parts) > 1 else ""
|
|
if not name:
|
|
continue
|
|
entry = {"name": name, "summary": summary}
|
|
if name not in seen:
|
|
seen[name] = entry
|
|
elif seen[name] != entry:
|
|
print(
|
|
f"WARNING: package '{name}' listed by multiple sources "
|
|
"with differing AppStream data - keeping the first one seen",
|
|
file=sys.stderr,
|
|
)
|
|
except OSError:
|
|
continue
|
|
print(json.dumps(list(seen.values())))
|
|
PYEOF
|
|
)"
|
|
[[ -n "$COMBINED_ENTRIES_JSON" ]] || die "failed to compute combined AppStream entries"
|
|
|
|
APPSTREAM_XML="${WORK_DIR}/appstream.xml"
|
|
python3 "$HELPER" gen-appstream "rpm-mirror" "$COMBINED_ENTRIES_JSON" > "$APPSTREAM_XML"
|
|
gzip -fk "$APPSTREAM_XML"
|
|
modifyrepo_c --mdtype=appstream "${APPSTREAM_XML}.gz" "${PKG_DIR}/repodata" >/dev/null
|
|
|
|
# Detached-sign repomd.xml itself with the mirror key, so clients can verify
|
|
# the METADATA (which packages/versions exist, their checksums) hasn't been
|
|
# tampered with - not just each individual RPM. Must happen last, after
|
|
# createrepo_c/modifyrepo_c are done touching repomd.xml (they update its
|
|
# checksums), otherwise the signature would be over stale content.
|
|
gpg --homedir "$GPG_HOME" --batch --pinentry-mode loopback --passphrase '' \
|
|
--detach-sign --armor \
|
|
--output "${PKG_DIR}/repodata/repomd.xml.asc" \
|
|
"${PKG_DIR}/repodata/repomd.xml" \
|
|
|| die "failed to sign repomd.xml with the mirror key"
|
|
|
|
# --- The ONE client-facing .repo file - this is all clients ever need -----
|
|
cat > "${CLIENT_REPO_DIR}/mirror.repo" <<EOF
|
|
[rpm-mirror]
|
|
name=RPM mirror
|
|
baseurl=${CLIENT_BASE_URL}/pkgs/
|
|
enabled=1
|
|
gpgcheck=1
|
|
gpgkey=${CLIENT_BASE_URL}/RPM-GPG-KEY-mirror
|
|
# gpgcheck=1 verifies each RPM's own signature (re-signed with the mirror
|
|
# key). repo_gpgcheck=1 additionally verifies repomd.xml itself against
|
|
# repomd.xml.asc (generated above) - together these confirm both the
|
|
# package contents AND the package listing/checksums came from this
|
|
# mirror, unmodified.
|
|
repo_gpgcheck=1
|
|
EOF
|
|
|
|
log "All sources synced into a single repo at ${PKG_DIR}/"
|
|
log "All mirrored packages are signed with mirror key ${MIRROR_GPG_KEY_ID} - clients only need ${MIRROR_GPG_KEY_FILE}."
|
|
log "Client setup (one command, one repo, done):"
|
|
log " curl -fsSL ${CLIENT_BASE_URL}/client-repos/mirror.repo -o /etc/yum.repos.d/rpm-mirror.repo && dnf makecache" |