The client scan resolved images by pulling from Docker Hub, which fails on an
offline/privacy box ("index.docker.io ... network is unreachable") — yet every
installed app's image is already present locally. Point Trivy at the docker
socket that's already bind-mounted into the container (--image-src docker, plus
DOCKER_HOST=unix:///run/user/<uid>/docker.sock for rootless, derived from the
install user — rooted's default path is found automatically). Scans local
images with zero network. Verified: aquasec/trivy:latest -> 28 CVEs.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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