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fix(trivy): scan in client mode against the running server

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Standalone `docker exec trivy-service trivy image ...` opens the vuln-DB cache
the long-lived server already holds, failing with "cache may be in use by
another process: timeout" — so every scan silently returned [] (apps: 0 even on
vulnerable images). Point the exec'd client at the server (--server
http://localhost:4954, the container's fixed --listen port); the server owns the
DB, the client just submits the image. Verified against alpine:3.10.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
librelad 2026-07-16 16:51:49 +01:00
parent da049ca03e
commit 8aa4c175ae
1 changed files with 6 additions and 3 deletions
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9
containers/trivy/scripts/trivy_scan.sh
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@ -54,10 +54,13 @@ trivyScanImageCves() {
[ -n "$image" ] || { echo '[]'; return; }
command -v jq >/dev/null 2>&1 || { echo '[]'; return; }
# Scan runs inside the server container, reusing its cached DB. --quiet keeps
# the progress spinner out of stdout; we only want CRITICAL..LOW findings.
# Scan in CLIENT mode against the running server (--server localhost:4954,
# the container's fixed --listen port). Standalone `trivy image` would try to
# open the vuln-DB cache the server already holds and fail with a cache-lock
# timeout; client mode leaves the DB to the server. --quiet keeps the
# progress spinner out of stdout; we only want CRITICAL..LOW findings.
local raw
raw="$(dockerCommandRun "docker exec trivy-service trivy image --quiet --scanners vuln --format json --severity CRITICAL,HIGH,MEDIUM,LOW '$image'" 2>/dev/null)"
raw="$(dockerCommandRun "docker exec trivy-service trivy image --server http://localhost:4954 --quiet --scanners vuln --format json --severity CRITICAL,HIGH,MEDIUM,LOW '$image'" 2>/dev/null)"
[ -n "$raw" ] || { echo '[]'; return; }
printf '%s' "$raw" | jq -c '