78 lines
2.7 KiB
Bash
Executable File
78 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# ==============================================================================================
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# ============================= Conf Cache Restore =============================================
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# ==============================================================================================
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#
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# PURPOSE
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# ─────────────────────────────────────────────────────────────────────────────
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# Runs at array start after conf_sync.sh. Checks whether partner confs made it
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# into the RAM cache. If any are missing (partner was unreachable at boot) and
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# a persistent backup exists from the previous shutdown, loads the missing confs
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# from backup into the RAM cache so scripts like fallback.sh have partner vars.
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#
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# Always removes the persistent backup when done — used or not.
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#
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# Normal reboot (partner up):
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# conf_sync.sh pulls fresh → RAM cache complete → backup not needed → removed
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#
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# Edge case (partner down at boot):
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# conf_sync.sh fails to pull → RAM cache missing partner → backup loaded into
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# RAM → backup removed → fallback.sh runs with last-known-good partner vars
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#
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# Own conf is never in the backup — it's always on disk.
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# ==============================================================================================
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$SCRIPT_DIR/../load_config.sh"
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parse_args "$@"
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detect_hosts
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RAM_CACHE="/tmp/.cache/vv/d"
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SAVE_DIR="/boot/config/.cache/vv/d"
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[[ "$DRY_RUN" == true ]] && warn "DRY RUN — no changes will be made"
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if [[ ! -d "$SAVE_DIR" ]]; then
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log "No persistent conf backup found — nothing to restore"
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exit 0
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fi
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restored=0
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for conf in "$SAVE_DIR"/host*.conf; do
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[[ -f "$conf" ]] || continue
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base="$(basename "$conf")"
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[[ "${base,,}" == "${MY_ID,,}.conf" ]] && continue
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if [[ -f "$RAM_CACHE/$base" ]]; then
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log "$base already in RAM cache (conf_sync succeeded) — skipping"
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continue
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fi
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if [[ "$DRY_RUN" == true ]]; then
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warn "DRY RUN — would restore $base → RAM cache"
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(( restored++ ))
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continue
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fi
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mkdir -p "$RAM_CACHE"
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if cp "$conf" "$RAM_CACHE/$base"; then
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echo "Restored $base from persistent backup → RAM cache ✅"
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(( restored++ ))
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else
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warn "Failed to restore $base"
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fi
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done
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[[ "$restored" -gt 0 ]] && \
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warn "Loaded $restored partner conf(s) from persistent backup — partner was unreachable at array start"
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if [[ "$DRY_RUN" == false ]]; then
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rm -rf "$SAVE_DIR"
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log "Persistent conf backup cleared"
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else
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warn "DRY RUN — would remove $SAVE_DIR"
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fi
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exit 0
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