60 lines
2 KiB
Text
60 lines
2 KiB
Text
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#!/usr/bin/env bash
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set -euo pipefail
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source /etc/restic/restic.env
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# Metrics file for node_exporter
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METRICS_DIR="/var/lib/node_exporter/textfile_collector"
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METRICS_FILE="${METRICS_DIR}/restic_backup.prom"
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mkdir -p "${METRICS_DIR}"
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# Temporary file for atomic writes
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TEMP_FILE=$(mktemp)
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# Start backup
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START_TIME=$(date +%s)
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if restic backup \
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{% for path in restic_backup_paths %}
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{{ path }} \
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{% endfor %}
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{% for pattern in restic_exclude_patterns %}
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--exclude '{{ pattern }}' \
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{% endfor %}
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--host {{ ansible_facts["hostname"] }}; then
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# Backup succeeded
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STATUS=1
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echo "# HELP restic_backup_success Whether the last backup succeeded (1=success, 0=failure)" > "${TEMP_FILE}"
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echo "# TYPE restic_backup_success gauge" >> "${TEMP_FILE}"
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echo "restic_backup_success ${STATUS}" >> "${TEMP_FILE}"
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echo "# HELP restic_backup_timestamp_seconds Timestamp of last backup completion" >> "${TEMP_FILE}"
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echo "# TYPE restic_backup_timestamp_seconds gauge" >> "${TEMP_FILE}"
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echo "restic_backup_timestamp_seconds $(date +%s)" >> "${TEMP_FILE}"
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echo "# HELP restic_backup_duration_seconds Duration of last backup in seconds" >> "${TEMP_FILE}"
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echo "# TYPE restic_backup_duration_seconds gauge" >> "${TEMP_FILE}"
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echo "restic_backup_duration_seconds $(($(date +%s) - START_TIME))" >> "${TEMP_FILE}"
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# Move temp file to final location atomically
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mv "${TEMP_FILE}" "${METRICS_FILE}"
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exit 0
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else
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# Backup failed
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STATUS=0
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echo "# HELP restic_backup_success Whether the last backup succeeded (1=success, 0=failure)" > "${TEMP_FILE}"
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echo "# TYPE restic_backup_success gauge" >> "${TEMP_FILE}"
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echo "restic_backup_success ${STATUS}" >> "${TEMP_FILE}"
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echo "# HELP restic_backup_timestamp_seconds Timestamp of last backup attempt" >> "${TEMP_FILE}"
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echo "# TYPE restic_backup_timestamp_seconds gauge" >> "${TEMP_FILE}"
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echo "restic_backup_timestamp_seconds $(date +%s)" >> "${TEMP_FILE}"
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# Move temp file to final location atomically
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mv "${TEMP_FILE}" "${METRICS_FILE}"
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exit 1
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fi
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