Imported from jfriisj/tools (.github/skills/docker-logs-snapshot/SKILL.md). Install upstream with npx skills add jfriisj/tools --skill docker-logs-snapshot. Copyright stays with the author.

Skill Instructions

Inputs

• SERVICE_CONTAINER (string, optional): container to snapshot (e.g. speech-recognition-service)
• COMPOSE_FILES (string, optional): compose flags (e.g. -f docker-compose.yml -f docker-compose.gpu.yml)
• LOGS_TAIL (string/int, optional): how many lines (default: 500)
• OUT_DIR (string, optional): output directory (default: agent-output/live-testing/artifacts)

Procedure

set -euo pipefail

out_dir="${OUT_DIR:-agent-output/live-testing/artifacts}"
logs_tail="${LOGS_TAIL:-500}"
mkdir -p "$out_dir"

stamp="$(date -u +%Y%m%dT%H%M%SZ)"

# 1) Basic inventory
{
  echo "timestamp_utc=$stamp"
  echo "cwd=$(pwd)"
  docker version || true
  docker compose version || true
  echo "---"
  docker ps --format 'table {{.Names}}\t{{.Image}}\t{{.Status}}\t{{.Ports}}' || true
} > "$out_dir/docker_snapshot_$stamp.txt"

# 2) Compose status (if provided)
if [ -n "${COMPOSE_FILES:-}" ]; then
  docker compose $COMPOSE_FILES ps > "$out_dir/compose_ps_$stamp.txt" || true
fi

# 3) Container-focused logs + inspect
if [ -n "${SERVICE_CONTAINER:-}" ]; then
  docker logs --tail "$logs_tail" "$SERVICE_CONTAINER" > "$out_dir/${SERVICE_CONTAINER}_logs_$stamp.txt" || true
  docker inspect "$SERVICE_CONTAINER" > "$out_dir/${SERVICE_CONTAINER}_inspect_$stamp.json" || true
fi

# 4) Optional: all compose logs (can be noisy)
if [ -n "${COMPOSE_FILES:-}" ]; then
  docker compose $COMPOSE_FILES logs --no-color --tail "$logs_tail" > "$out_dir/compose_logs_$stamp.txt" || true
fi

echo "Wrote artifacts to: $out_dir"

Acceptance Criteria

• Output directory contains at least:
  • docker_snapshot_<timestamp>.txt
  • and (if SERVICE_CONTAINER set) <service>_logs_<timestamp>.txt and <service>_inspect_<timestamp>.json

Notes

• Do not paste secrets from logs into chat; attach files or summarize.
• Prefer --tail to keep snapshots small and reproducible.