Document review matrix and drift checks
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#!/usr/bin/env bash
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# Vergleicht die Traefik dynamic File-Provider-Dateien aus dem Repo-Spiegel
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# gegen die produktive Host-Dateiablage. Der Check ist read-only:
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# rsync laeuft mit --dry-run und schreibt nichts.
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#
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# Aufruf-Defaults siehe Variablen unten. Aufruf typischerweise:
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# bash services/traefik-dynamic-diff.sh
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#
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# Exit-Codes:
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# 0 Repo und Host sind identisch
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# 1 Drift festgestellt (rsync itemized output auf stdout)
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# 2 Repo- oder Host-Verzeichnis fehlt
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# 4 internes Werkzeug fehlt (rsync)
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set -uo pipefail
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TRAEFIK_DYNAMIC_REPO_DIR="${TRAEFIK_DYNAMIC_REPO_DIR:-/mnt/user/services/homelab-infra/traefik/dynamic}"
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TRAEFIK_DYNAMIC_HOST_DIR="${TRAEFIK_DYNAMIC_HOST_DIR:-/mnt/user/appdata/traefik/dynamic}"
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if ! command -v rsync >/dev/null 2>&1; then
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echo "traefik-dynamic-diff: missing required command 'rsync'" >&2
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exit 4
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fi
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if [ ! -d "$TRAEFIK_DYNAMIC_REPO_DIR" ]; then
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echo "traefik-dynamic-diff: repo directory not found: $TRAEFIK_DYNAMIC_REPO_DIR" >&2
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exit 2
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fi
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if [ ! -d "$TRAEFIK_DYNAMIC_HOST_DIR" ]; then
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echo "traefik-dynamic-diff: host directory not found: $TRAEFIK_DYNAMIC_HOST_DIR" >&2
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exit 2
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fi
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diff_output="$(rsync -rni --checksum --delete \
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"$TRAEFIK_DYNAMIC_REPO_DIR"/ \
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"$TRAEFIK_DYNAMIC_HOST_DIR"/)"
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if [ -n "$diff_output" ]; then
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printf '%s\n' "$diff_output"
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exit 1
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fi
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exit 0
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