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geointel/scripts/scan_container_image.sh
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Jens ce87d33802
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ci: make Trivy scan nested-runner safe
2026-08-26 23:53:40 +02:00

76 lines
2.4 KiB
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#!/usr/bin/env bash
set -euo pipefail
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
TARGET_IMAGE="${1:-geointel-ci:local}"
OUTPUT="${2:-artifacts/geointel-container-vulnerabilities.json}"
TRIVY_IMAGE="aquasec/trivy:0.70.0@sha256:be1190afcb28352bfddc4ddeb71470835d16462af68d310f9f4bca710961a41e"
CACHE_VOLUME="${GEOINTEL_TRIVY_CACHE_VOLUME:-geointel-trivy-cache}"
PYTHON_CMD="${PYTHON_BIN:-python3}"
IGNORE_FILE="$(mktemp)"
CONTAINER_IGNORE_FILE="/tmp/geointel-trivy-ignore.txt"
POLICY_CONTAINER=""
cleanup() {
rm -f "$IGNORE_FILE"
if [ -n "$POLICY_CONTAINER" ]; then
docker rm -f "$POLICY_CONTAINER" >/dev/null 2>&1 || true
fi
}
trap cleanup EXIT
case "$OUTPUT" in
/*|*..*)
echo "Scan output must be a repository-relative path without '..'." >&2
exit 1
;;
esac
docker image inspect "$TARGET_IMAGE" >/dev/null
mkdir -p "$ROOT/$(dirname "$OUTPUT")"
"$PYTHON_CMD" "$ROOT/scripts/verify_security_exceptions.py"
"$PYTHON_CMD" "$ROOT/scripts/verify_security_exceptions.py" \
--print-container-ids > "$IGNORE_FILE"
docker volume create "$CACHE_VOLUME" >/dev/null
# Keep the complete report, including vulnerabilities without an available fix.
# Stream JSON over stdout so no checkout path has to be mounted through the
# nested Gitea/act container boundary.
docker run --rm \
-v /var/run/docker.sock:/var/run/docker.sock \
-v "$CACHE_VOLUME:/root/.cache/trivy" \
"$TRIVY_IMAGE" \
image \
--scanners vuln \
--timeout 20m \
--skip-version-check \
--format json \
"$TARGET_IMAGE" > "$ROOT/$OUTPUT"
# Release policy: fixed HIGH/CRITICAL findings block the build. Unfixed findings
# remain visible in the full report and must be reviewed before release. Copy
# the verified exception IDs into a stopped scanner container before starting
# it; `docker cp` works when the job checkout itself lives in another container.
POLICY_CONTAINER="$(docker create \
-v /var/run/docker.sock:/var/run/docker.sock \
-v "$CACHE_VOLUME:/root/.cache/trivy" \
"$TRIVY_IMAGE" \
image \
--scanners vuln \
--timeout 20m \
--skip-version-check \
--ignore-unfixed \
--ignorefile "$CONTAINER_IGNORE_FILE" \
--skip-files /usr/local/bin/gosu \
--severity HIGH,CRITICAL \
--exit-code 1 \
"$TARGET_IMAGE")"
docker cp "$IGNORE_FILE" "$POLICY_CONTAINER:$CONTAINER_IGNORE_FILE"
docker start -a "$POLICY_CONTAINER"
docker rm "$POLICY_CONTAINER" >/dev/null
POLICY_CONTAINER=""
test -s "$ROOT/$OUTPUT"
echo "Container vulnerability report written to $OUTPUT"