Kryštof Pešek
206 lines
7.0 KiB
Bash
Executable File
206 lines
7.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# =============================================================================
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# fleet-beacon.sh — Multi-node Realtime Telemetry Beacon (Pure Bash Fallback)
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# Observatoř Telemetry Platform // Fleet Operations
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#
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# Broadcasts lightweight UDP telemetry packets (port 9850) every 1.5s.
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# Zero external dependencies, pure coreutils + bash.
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# =============================================================================
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set -e
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PORT=9850
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INTERVAL=1.5
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TARGETS=(
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"255.255.255.255"
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"192.168.1.255"
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"192.168.1.100"
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"192.168.1.102"
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"192.168.1.104"
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"192.168.1.101"
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"192.168.1.105"
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"192.168.1.103"
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"10.39.9.255"
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"10.39.9.1"
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"10.0.0.255"
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"10.0.0.18"
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"10.0.0.14"
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"91.139.118.43"
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"192.168.43.255"
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"192.168.43.1"
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"127.0.0.1"
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)
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# Identity resolution
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if [ -z "$FLEET_NODE" ] || [ -z "$FLEET_ARCH" ]; then
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[ -f "/etc/fleet_id" ] && source "/etc/fleet_id" 2>/dev/null || true
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[ -f "$HOME/.fleet_id" ] && source "$HOME/.fleet_id" 2>/dev/null || true
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fi
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RAW_HOST="$(hostname -s 2>/dev/null || uname -n)"
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if [ -z "$FLEET_NODE" ]; then
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if [ -d "/data/data/com.termux" ] || [ -n "$TERMUX_VERSION" ] || [ "$RAW_HOST" = "localhost" ] || [ "$RAW_HOST" = "android" ]; then
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FLEET_NODE="android"
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elif [ "$RAW_HOST" = "penguin" ]; then
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FLEET_NODE="crostini"
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else
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FLEET_NODE="$RAW_HOST"
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fi
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fi
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FLEET_ARCH="${FLEET_ARCH:-$(uname -m)}"
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FLEET_SIGN="${FLEET_SIGN:-[${FLEET_NODE}:${FLEET_ARCH}]}"
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RUN_ONCE=0
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PRINT_JSON=0
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for arg in "$@"; do
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case "$arg" in
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--once|-1) RUN_ONCE=1 ;;
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--json|-j) RUN_ONCE=1; PRINT_JSON=1 ;;
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esac
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done
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if [ "$PRINT_JSON" -eq 0 ]; then
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echo "[fleet-beacon-sh] Starting Bash telemetry beacon on $FLEET_NODE $FLEET_SIGN (port $PORT)..."
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fi
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prev_work=0
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prev_total=0
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while true; do
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# 1. CPU
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cpu_pct=0.0
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if [ -r /proc/stat ]; then
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read -r _ u n s i io irq sirq stl _ < /proc/stat 2>/dev/null || true
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work=$(( u + n + s + irq + sirq + stl ))
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total=$(( work + i + io ))
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if [ "$prev_total" -gt 0 ] && [ "$total" -gt "$prev_total" ]; then
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d_work=$(( work - prev_work ))
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d_total=$(( total - prev_total ))
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if [ "$d_total" -gt 0 ]; then
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cpu_pct=$(awk -v w="$d_work" -v t="$d_total" 'BEGIN { printf "%.1f", (w/t)*100 }')
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fi
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fi
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prev_work=$work
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prev_total=$total
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fi
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# 2. RAM
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mem_used=0.0
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mem_total=0.0
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if [ -r /proc/meminfo ]; then
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tot_kb=$(awk '/^MemTotal:/ {print $2}' /proc/meminfo)
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avail_kb=$(awk '/^MemAvailable:/ {print $2}' /proc/meminfo)
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if [ -z "$avail_kb" ]; then
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free_kb=$(awk '/^MemFree:/ {print $2}' /proc/meminfo)
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buf_kb=$(awk '/^Buffers:/ {print $2}' /proc/meminfo)
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cache_kb=$(awk '/^Cached:/ {print $2}' /proc/meminfo)
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avail_kb=$(( free_kb + buf_kb + cache_kb ))
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fi
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if [ -n "$tot_kb" ] && [ "$tot_kb" -gt 0 ]; then
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mem_total=$(awk -v t="$tot_kb" 'BEGIN { printf "%.1f", t/1048576 }')
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used_kb=$(( tot_kb - avail_kb ))
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mem_used=$(awk -v u="$used_kb" 'BEGIN { printf "%.1f", u/1048576 }')
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fi
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fi
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# 3. Disk
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disk_mount="/"
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if [ "$FLEET_NODE" = "boxC" ] && [ -d "/mnt/kof17" ]; then
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disk_mount="/mnt/kof17"
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elif [ "$FLEET_NODE" = "bazina" ] && [ -d "/mnt/ssd" ]; then
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disk_mount="/mnt/ssd"
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fi
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df_out=$(df -B1G "$disk_mount" 2>/dev/null | tail -n 1) || df_out=""
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disk_total=$(echo "$df_out" | awk '{print $2}')
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disk_free=$(echo "$df_out" | awk '{print $4}')
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disk_total="${disk_total:-0.0}"
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disk_free="${disk_free:-0.0}"
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# 4. GPU (sysfs)
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gpu_str=""
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for gpath in /sys/class/drm/card*/device/gpu_busy_percent; do
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if [ -r "$gpath" ]; then
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gpu_val=$(cat "$gpath" 2>/dev/null || echo "")
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[ -n "$gpu_val" ] && gpu_str="Navi10 ${gpu_val}%" && break
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fi
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done
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# 5. Temp
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temp_c=0
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for tpath in /sys/class/thermal/thermal_zone0/temp /sys/class/hwmon/hwmon0/temp1_input; do
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if [ -r "$tpath" ]; then
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traw=$(cat "$tpath" 2>/dev/null || echo 0)
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[ "$traw" -gt 0 ] && temp_c=$(( traw / 1000 )) && break
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fi
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done
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# 6. Battery
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bat_pct=-1
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for bpath in /sys/class/power_supply/BAT*/capacity /sys/class/power_supply/*battery*/capacity; do
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if [ -r "$bpath" ]; then
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bval=$(cat "$bpath" 2>/dev/null || echo -1)
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[ "$bval" -ge 0 ] && bat_pct=$bval && break
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fi
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done
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# 7. Alert
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alert=""
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if [ "$FLEET_NODE" = "boxC" ] && [ "$disk_mount" = "/mnt/kof17" ]; then
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awk_crit=$(awk -v df="$disk_free" 'BEGIN { print (df < 3.0) ? 1 : 0 }')
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[ "$awk_crit" -eq 1 ] && alert="kof17 CRITICAL: ${disk_free}G free"
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elif [ "$FLEET_NODE" = "crostini" ]; then
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awk_crit=$(awk -v df="$disk_free" 'BEGIN { print (df < 1.0) ? 1 : 0 }')
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[ "$awk_crit" -eq 1 ] && alert="crostini LOW DISK: ${disk_free}G free"
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fi
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if [ "$bat_pct" -ge 0 ] && [ "$bat_pct" -le 15 ]; then
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alert="$FLEET_NODE BATTERY CRITICAL: ${bat_pct}%"
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fi
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ts=$(date +%s)
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payload=$(printf '{"name":"%s","hostname":"%s","node":"%s","arch":"%s","sign":"%s","timestamp":%s,"cpu_percent":%s,"mem_used_gb":%s,"mem_total_gb":%s,"disk_mount":"%s","disk_free_gb":%s,"disk_total_gb":%s,"gpu_str":"%s","temp_c":%d,"battery_percent":%d,"alert":"%s"}' \
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"$FLEET_NODE" "$RAW_HOST" "$FLEET_NODE" "$FLEET_ARCH" "$FLEET_SIGN" \
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"$ts" "$cpu_pct" "$mem_used" "$mem_total" \
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"$disk_mount" "$disk_free" "$disk_total" \
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"$gpu_str" "$temp_c" "$bat_pct" "$alert")
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# Broadcast UDP
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for target in "${TARGETS[@]}"; do
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if [ -w /dev/udp ]; then
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echo -n "$payload" > "/dev/udp/$target/$PORT" 2>/dev/null || true
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elif command -v socat >/dev/null 2>&1; then
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echo -n "$payload" | socat - "UDP-DATAGRAM:$target:$PORT,broadcast" 2>/dev/null || true
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elif command -v nc >/dev/null 2>&1; then
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echo -n "$payload" | nc -u -w1 "$target" "$PORT" 2>/dev/null || true
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fi
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done
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# Update SHM cache
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shm_fleet="/dev/shm/fleet_telemetry.json"
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tmp_path="${shm_fleet}.tmp.$$"
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if [ -f "$shm_fleet" ]; then
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# Merge using awk/sed
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grep -v "\"${FLEET_NODE}\":" "$shm_fleet" 2>/dev/null | sed -e 's/^}$//' > "$tmp_path" || true
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echo " ,\"${FLEET_NODE}\": $payload" >> "$tmp_path"
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echo "}" >> "$tmp_path"
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else
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printf '{\n "%s": %s\n}\n' "$FLEET_NODE" "$payload" > "$tmp_path"
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fi
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chmod 666 "$tmp_path" 2>/dev/null || true
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mv -f "$tmp_path" "$shm_fleet" 2>/dev/null || true
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# WAN HTTP fallback
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if [ "$FLEET_NODE" != "boxC" ]; then
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if command -v curl >/dev/null 2>&1; then
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curl -s -m 1.5 -X POST "http://91.139.118.43/telemetry.php" \
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-H "Content-Type: application/json" -d "$payload" >/dev/null 2>&1 || true
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fi
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fi
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if [ "$PRINT_JSON" -eq 1 ]; then
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echo "$payload"
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fi
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[ "$RUN_ONCE" -eq 1 ] && break
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sleep "$INTERVAL"
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done
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