Initial commit: moon-household-budget

backup/Dockerfile

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+# Tiny rclone + sqlite sidecar that backs up /data to Backblaze B2 on a loop.
+FROM alpine:3.20
+
+RUN apk add --no-cache rclone sqlite tzdata
+
+COPY backup.sh /backup.sh
+RUN chmod +x /backup.sh
+
+ENV BACKUP_INTERVAL=86400
+
+# Run once on boot, then every BACKUP_INTERVAL seconds. A failed run is logged
+# but does not kill the loop.
+CMD ["sh", "-c", "while true; do /backup.sh || echo '[backup] FAILED'; sleep \"${BACKUP_INTERVAL}\"; done"]

backup/backup.sh

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+#!/bin/sh
+# Back up the app's data under /data (the budget JSON files, imported PDFs/CSVs,
+# and uploaded images). This app stores everything as plain JSON files — there
+# is no SQLite database.
+#
+# Always writes a timestamped tar.gz to the local NAS path (/backups, mounted
+# from the host). ALSO pushes to Backblaze B2 — but only when a real bucket and
+# credentials are configured, so it's harmless before B2 is set up.
+#
+# rclone's B2 remote ("b2:") is configured from the RCLONE_CONFIG_B2_* env vars.
+# Runs once; the container loops it on BACKUP_INTERVAL.
+set -eu
+
+STAMP=$(date +%Y%m%d-%H%M%S)
+KEEP_DAYS="${BACKUP_KEEP_DAYS:-30}"
+LOCAL_DIR="/backups"
+
+echo "[backup ${STAMP}] starting"
+
+# 1. Local timestamped snapshot of everything under /data ---------------------
+mkdir -p "${LOCAL_DIR}"
+ARCHIVE="${LOCAL_DIR}/moon-data-${STAMP}.tar.gz"
+tar -czf "${ARCHIVE}" -C /data .
+echo "[backup ${STAMP}] local snapshot: ${ARCHIVE} ($(du -h "${ARCHIVE}" | cut -f1))"
+
+# prune old local snapshots
+find "${LOCAL_DIR}" -name 'moon-data-*.tar.gz' -type f -mtime +"${KEEP_DAYS}" -delete 2>/dev/null || true
+
+# 2. Optional Backblaze B2 push (only when a real bucket + key are set) --------
+if [ -n "${B2_BUCKET:-}" ] && [ "${B2_BUCKET#__}" = "${B2_BUCKET}" ] \
+   && [ -n "${RCLONE_CONFIG_B2_ACCOUNT:-}" ] && [ "${RCLONE_CONFIG_B2_ACCOUNT#__}" = "${RCLONE_CONFIG_B2_ACCOUNT}" ]; then
+  DEST="b2:${B2_BUCKET}/moon-household-budget"
+  if rclone copyto "${ARCHIVE}" "${DEST}/snapshots/moon-data-${STAMP}.tar.gz" 2>/tmp/rclone.err; then
+    rclone sync /data "${DEST}/current" 2>>/tmp/rclone.err || true
+    rclone delete --min-age "${KEEP_DAYS}d" "${DEST}/snapshots" 2>/dev/null || true
+    echo "[backup ${STAMP}] pushed to B2 (${B2_BUCKET})"
+  else
+    echo "[backup ${STAMP}] B2 push FAILED: $(head -1 /tmp/rclone.err 2>/dev/null)"
+  fi
+else
+  echo "[backup ${STAMP}] B2 not configured — local snapshot only"
+fi
+
+echo "[backup ${STAMP}] done"