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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Matthias Johnson 2026-02-27 15:09:25 -07:00
commit 75891c3271
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56
roles/restic/templates/restic-prune.sh.j2 Normal file
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#!/usr/bin/env bash
set -euo pipefail
source /etc/restic/restic.env
# Metrics file for node_exporter
METRICS_DIR="/var/lib/node_exporter/textfile_collector"
METRICS_FILE="${METRICS_DIR}/restic_prune.prom"
mkdir -p "${METRICS_DIR}"
# Temporary file for atomic writes
TEMP_FILE=$(mktemp)
# Start prune
START_TIME=$(date +%s)
if restic forget \
--keep-daily {{ restic_retention.daily }} \
--keep-weekly {{ restic_retention.weekly }} \
--keep-monthly {{ restic_retention.monthly }} \
--prune; then
# Prune succeeded
STATUS=1
echo "# HELP restic_prune_success Whether the last prune succeeded (1=success, 0=failure)" > "${TEMP_FILE}"
echo "# TYPE restic_prune_success gauge" >> "${TEMP_FILE}"
echo "restic_prune_success ${STATUS}" >> "${TEMP_FILE}"
echo "# HELP restic_prune_timestamp_seconds Timestamp of last prune completion" >> "${TEMP_FILE}"
echo "# TYPE restic_prune_timestamp_seconds gauge" >> "${TEMP_FILE}"
echo "restic_prune_timestamp_seconds $(date +%s)" >> "${TEMP_FILE}"
echo "# HELP restic_prune_duration_seconds Duration of last prune in seconds" >> "${TEMP_FILE}"
echo "# TYPE restic_prune_duration_seconds gauge" >> "${TEMP_FILE}"
echo "restic_prune_duration_seconds $(($(date +%s) - START_TIME))" >> "${TEMP_FILE}"
# Move temp file to final location atomically
mv "${TEMP_FILE}" "${METRICS_FILE}"
exit 0
else
# Prune failed
STATUS=0
echo "# HELP restic_prune_success Whether the last prune succeeded (1=success, 0=failure)" > "${TEMP_FILE}"
echo "# TYPE restic_prune_success gauge" >> "${TEMP_FILE}"
echo "restic_prune_success ${STATUS}" >> "${TEMP_FILE}"
echo "# HELP restic_prune_timestamp_seconds Timestamp of last prune attempt" >> "${TEMP_FILE}"
echo "# TYPE restic_prune_timestamp_seconds gauge" >> "${TEMP_FILE}"
echo "restic_prune_timestamp_seconds $(date +%s)" >> "${TEMP_FILE}"
# Move temp file to final location atomically
mv "${TEMP_FILE}" "${METRICS_FILE}"
exit 1
fi