143 lines
5.3 KiB
Bash
Executable File
143 lines
5.3 KiB
Bash
Executable File
#!/bin/bash
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# ==============================================================================================
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# ============================= Remote Arr Cache Writer ========================================
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# ==============================================================================================
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#
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# PURPOSE
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# ─────────────────────────────────────────────────────────────────────────────
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# SSHes to each remote partner host, calls vv_arrs_local_node() on their PHP
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# stack, and caches the result locally in /tmp/vv_cache/arrs_remote_hostN.json.
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#
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# The arrs page reads these files for instant initial load without hitting the
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# remote arr APIs on every page view. This script runs every 2 hours so remote
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# library counts stay reasonably current without hammering the network.
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#
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# Accepts --host=HOST2 to refresh a single host (used by the UI refresh button).
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#
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# ==============================================================================================
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# USAGE
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# ==============================================================================================
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#
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# remote_arr_cache_writer.sh — refresh all remote hosts
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# remote_arr_cache_writer.sh --host=HOST2 — refresh one host only
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# remote_arr_cache_writer.sh --dry-run — show what would happen
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# remote_arr_cache_writer.sh --log — verbose output
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#
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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 "$@"
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acquire_lock
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detect_hosts
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# Parse --host= from raw args
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TARGET_HOST=""
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for arg in "$@"; do
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case "$arg" in --host=*) TARGET_HOST="${arg#--host=}" ;; esac
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done
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mkdir -p /tmp/vv_cache
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log "$ICON_GEAR Config: target=${TARGET_HOST:-all hosts} ssh-key=${SSH_KEY}"
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FETCH_OK=0
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FETCH_FAIL=0
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FETCH_SKIP=0
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echo ""
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echo "━━━ $ICON_SYNC Remote Arr Cache Writer ━━━"
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[[ "$DRY_RUN" == true ]] && warn "DRY RUN — no changes will be made"
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[[ -n "$TARGET_HOST" ]] && echo " Target: $TARGET_HOST"
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echo ""
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for host_var in HOST1 HOST2 HOST3 HOST4 HOST5 HOST6 HOST7 HOST8; do
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[[ "$host_var" == "$MY_ID" ]] && continue
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hostname="${!host_var:-}"
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[[ -z "$hostname" ]] && continue
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# If targeting a specific host, skip others
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if [[ -n "$TARGET_HOST" ]]; then
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[[ "${host_var,,}" != "${TARGET_HOST,,}" && "$host_var" != "$TARGET_HOST" ]] && continue
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fi
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host_id="${host_var,,}" # host1, host2, …
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cache_file="/tmp/vv_cache/arrs_remote_${host_id}.json"
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echo " $host_var ($hostname)…"
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if [[ "$DRY_RUN" == true ]]; then
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warn " DRY RUN — would SSH to $hostname and cache arr data"
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(( FETCH_SKIP++ ))
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continue
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fi
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# Resolve Tailscale IP
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REMOTE_IP=$(resolve_tailscale_ip "$hostname")
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if [[ -z "$REMOTE_IP" ]]; then
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warn " $host_var: cannot resolve Tailscale IP for $hostname — skipping"
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(( FETCH_FAIL++ ))
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continue
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fi
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log " $host_var: resolved $hostname → $REMOTE_IP"
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# Single SSH connection — fetch arrs + monitor stats together
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RESULT=$(ssh -i "$SSH_KEY" \
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-o ConnectTimeout=10 \
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-o StrictHostKeyChecking=no \
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-o BatchMode=yes \
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"root@${REMOTE_IP}" \
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"php -r \"
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require_once '/usr/local/emhttp/plugins/varaverk/include/arrs.php';
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require_once '/usr/local/emhttp/plugins/varaverk/include/unraid_api.php';
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echo json_encode([
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'arrs' => vv_arrs_local_node(),
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'monitor' => vv_local_host_stats(),
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]);
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\"" 2>/dev/null)
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if [[ -z "$RESULT" ]]; then
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warn " $host_var: empty SSH response — skipping"
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(( FETCH_FAIL++ ))
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continue
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fi
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# Validate combined JSON
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if ! echo "$RESULT" | php -r "
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\$d = json_decode(file_get_contents('php://stdin'), true);
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exit(!is_array(\$d) || !isset(\$d['arrs'], \$d['monitor']) ? 1 : 0);
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" 2>/dev/null; then
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warn " $host_var: invalid JSON — skipping"
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log " Response: ${RESULT:0:200}"
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(( FETCH_FAIL++ ))
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continue
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fi
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# Save arr cache
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echo "$RESULT" | php -r "
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\$d = json_decode(file_get_contents('php://stdin'), true);
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file_put_contents('$cache_file', json_encode(\$d['arrs']));
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" 2>/dev/null
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# Save monitor cache
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MONITOR_CACHE="/tmp/vv_cache/monitor_remote_${host_id}.json"
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echo "$RESULT" | php -r "
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\$d = json_decode(file_get_contents('php://stdin'), true);
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file_put_contents('$MONITOR_CACHE', json_encode(\$d['monitor']));
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" 2>/dev/null
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CACHED_TYPES=$(echo "$RESULT" | php -r "
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\$d = json_decode(file_get_contents('php://stdin'), true);
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echo implode(', ', array_column(\$d['arrs']['arrs'] ?? [], 'type'));
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" 2>/dev/null)
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echo " $host_var: arrs [${CACHED_TYPES:-none}] + monitor stats cached ✅"
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(( FETCH_OK++ ))
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done
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echo ""
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echo "━━━━━ $ICON_SUMMARY Cache Writer Summary ━━━━━"
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echo " $FETCH_OK updated · $FETCH_FAIL failed · $FETCH_SKIP skipped"
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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