feat: enforce live supply chain provenance gates

2026-07-10 16:47:45 +09:00
parent aa284e9bd4
commit 040af64191
8 changed files with 351 additions and 0 deletions
@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Live CI supply-chain gate. Unlike the deterministic local denylist gate, this
+# obtains current advisory data and scans the built images. Missing scanners are
+# an error in strict CI; no "scanner unavailable => green" path exists.
+#
+# Usage: live-supply-chain-scan.sh <report-dir> [image-ref ...]
+# Required tools: npm, osv-scanner, trivy (when CASAN_REQUIRE_LIVE_SCANNERS=1)
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "$SCRIPT_DIR/casan-paths.sh"
+ROOT="$CASAN_APP_ROOT"
+OUT="${1:-}"; shift || true
+[[ -n "$OUT" ]] || { echo "LIVE_SCAN_USAGE report-dir [image-ref ...]" >&2; exit 64; }
+mkdir -p "$OUT"
+
+fail() { echo "LIVE_SUPPLY_CHAIN_FAIL $*" >&2; exit 1; }
+require() { command -v "$1" >/dev/null 2>&1 || fail "tool_missing name=$1"; }
+require npm
+if [[ "${CASAN_REQUIRE_LIVE_SCANNERS:-1}" == "1" ]]; then
+  require osv-scanner
+  require trivy
+fi
+
+[[ -f "$ROOT/package-lock.json" ]] || fail "package_lock_missing"
+cd "$ROOT"
+
+# npm audit exits non-zero for findings at/above the requested level. Preserve
+# JSON evidence even on failure without converting a failed scan into success.
+set +e
+npm audit --omit=dev --audit-level=high --json > "$OUT/npm-audit.json" 2> "$OUT/npm-audit.stderr"
+audit_rc=$?
+set -e
+[[ "$audit_rc" -eq 0 ]] || fail "npm_audit_high_or_critical rc=$audit_rc report=$OUT/npm-audit.json"
+
+npm sbom --sbom-format cyclonedx --package-lock-only --omit=dev > "$OUT/npm.cyclonedx.json" \
+  || fail "npm_sbom_failed"
+python3 - "$OUT/npm.cyclonedx.json" <<'PY' || exit 1
+import json, sys
+d = json.load(open(sys.argv[1]))
+assert d.get("bomFormat") == "CycloneDX", d
+PY
+
+if command -v osv-scanner >/dev/null 2>&1; then
+  osv-scanner scan source --recursive --format json --output-file "$OUT/osv-source.json" "$ROOT" \
+    || fail "osv_source_findings_or_scan_error report=$OUT/osv-source.json"
+fi
+if command -v trivy >/dev/null 2>&1; then
+  trivy fs --scanners vuln,secret,misconfig --severity HIGH,CRITICAL --exit-code 1 --format json --output "$OUT/trivy-source.json" "$ROOT" \
+    || fail "trivy_source_findings_or_scan_error report=$OUT/trivy-source.json"
+fi
+
+for image in "$@"; do
+  safe="$(printf '%s' "$image" | tr '/:@' '___')"
+  if command -v osv-scanner >/dev/null 2>&1; then
+    osv-scanner scan image --format json --output-file "$OUT/osv-image-${safe}.json" "$image" \
+      || fail "osv_image_findings_or_scan_error image=$image"
+  fi
+  if command -v trivy >/dev/null 2>&1; then
+    trivy image --severity HIGH,CRITICAL --exit-code 1 --format json --output "$OUT/trivy-image-${safe}.json" "$image" \
+      || fail "trivy_image_findings_or_scan_error image=$image"
+  fi
+done
+
+echo "LIVE_SUPPLY_CHAIN_PASS sbom=$OUT/npm.cyclonedx.json images=$#"