114 lines
4.2 KiB
Bash
Executable File
114 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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set -uo pipefail
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# hostinfo.sh - Gather hardware/system info from a remote host
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#
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# Output: JSON object with system information
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# -- Helper to escape JSON strings --
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json_escape() {
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local str="$1"
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str="${str//\\/\\\\}"
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str="${str//\"/\\\"}"
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str="${str//$'\n'/\\n}"
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str="${str//$'\r'/\\r}"
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str="${str//$'\t'/\\t}"
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echo -n "$str"
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}
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# -- Gather system info --
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HOSTNAME=$(hostname 2>/dev/null || echo "Unknown")
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CPU=$(grep -m1 'model name' /proc/cpuinfo 2>/dev/null | cut -d: -f2 | xargs || echo "Unknown")
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CPU_CORES=$(nproc 2>/dev/null || grep -c '^processor' /proc/cpuinfo 2>/dev/null || echo "0")
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MOTHERBOARD=$(cat /sys/devices/virtual/dmi/id/board_name 2>/dev/null || echo "Unknown")
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# RAM from free -m (used = total - available)
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RAM_TOTAL_MB=$(free -m 2>/dev/null | awk 'NR==2{print $2}' || echo "0")
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RAM_AVAIL_MB=$(free -m 2>/dev/null | awk 'NR==2{print $7}' || echo "0")
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RAM_USED_MB=$(( RAM_TOTAL_MB - RAM_AVAIL_MB ))
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# Disk root (strip trailing G from df -BG output)
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DISK_ROOT_USED_GB=$(df -BG / 2>/dev/null | awk 'NR==2{gsub(/G/,"",$3); print $3}' || echo "0")
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DISK_ROOT_TOTAL_GB=$(df -BG / 2>/dev/null | awk 'NR==2{gsub(/G/,"",$2); print $2}' || echo "0")
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# Disk /tank (only if mounted)
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DISK_TANK_USED_GB=""
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DISK_TANK_TOTAL_GB=""
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if [ -d /tank ] && mountpoint -q /tank 2>/dev/null; then
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DISK_TANK_USED_GB=$(df -BG /tank 2>/dev/null | awk 'NR==2{gsub(/G/,"",$3); print $3}' || echo "")
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DISK_TANK_TOTAL_GB=$(df -BG /tank 2>/dev/null | awk 'NR==2{gsub(/G/,"",$2); print $2}' || echo "")
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fi
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# IP addresses
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IP_LOCAL=$(hostname -I 2>/dev/null | awk '{print $1}' || echo "Unknown")
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IP_TAILSCALE=""
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if command -v tailscale &>/dev/null; then
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IP_TAILSCALE=$(tailscale ip -4 2>/dev/null || echo "")
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fi
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IP_PUBLIC=""
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if command -v curl &>/dev/null; then
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IP_PUBLIC=$(curl -s --max-time 3 ifconfig.me 2>/dev/null || echo "")
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elif command -v wget &>/dev/null; then
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IP_PUBLIC=$(wget -qO- --timeout=3 ifconfig.me 2>/dev/null || echo "")
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fi
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# OS info
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OS=$(grep PRETTY_NAME /etc/os-release 2>/dev/null | cut -d= -f2 | tr -d '"' || uname -o 2>/dev/null || echo "Unknown")
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KERNEL=$(uname -r 2>/dev/null || echo "Unknown")
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UPTIME=$(uptime -p 2>/dev/null || uptime 2>/dev/null || echo "Unknown")
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# Docker
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DOCKER_VERSION=""
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if command -v docker &>/dev/null; then
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DOCKER_VERSION=$(docker --version 2>/dev/null | awk '{print $3}' | tr -d ',' || echo "")
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fi
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# GPU list (may have 0, 1, or multiple)
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GPU_JSON="[]"
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if command -v lspci &>/dev/null; then
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GPU_LINES=$(lspci 2>/dev/null | grep -i 'vga\|3d\|display' | sed 's/^[^ ]* //; s/VGA compatible controller: //; s/3D controller: //; s/Display controller: //' || true)
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if [ -n "$GPU_LINES" ]; then
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GPU_JSON="["
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first=true
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while IFS= read -r line; do
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[ -z "$line" ] && continue
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if [ "$first" = "true" ]; then
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first=false
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else
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GPU_JSON+=","
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fi
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GPU_JSON+="\""
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GPU_JSON+=$(json_escape "$line")
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GPU_JSON+="\""
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done <<< "$GPU_LINES"
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GPU_JSON+="]"
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fi
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fi
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# -- Output JSON --
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echo -n '{'
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echo -n '"hostname":"'; json_escape "$HOSTNAME"; echo -n '"'
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echo -n ',"cpu":"'; json_escape "$CPU"; echo -n '"'
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echo -n ',"cpu_cores":"'; json_escape "$CPU_CORES"; echo -n '"'
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echo -n ',"motherboard":"'; json_escape "$MOTHERBOARD"; echo -n '"'
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echo -n ',"gpu":'"$GPU_JSON"
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echo -n ',"ram_used_mb":"'; json_escape "$RAM_USED_MB"; echo -n '"'
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echo -n ',"ram_total_mb":"'; json_escape "$RAM_TOTAL_MB"; echo -n '"'
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echo -n ',"disk_root_used_gb":"'; json_escape "$DISK_ROOT_USED_GB"; echo -n '"'
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echo -n ',"disk_root_total_gb":"'; json_escape "$DISK_ROOT_TOTAL_GB"; echo -n '"'
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echo -n ',"disk_tank_used_gb":"'; json_escape "$DISK_TANK_USED_GB"; echo -n '"'
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echo -n ',"disk_tank_total_gb":"'; json_escape "$DISK_TANK_TOTAL_GB"; echo -n '"'
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echo -n ',"ip_local":"'; json_escape "$IP_LOCAL"; echo -n '"'
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echo -n ',"ip_tailscale":"'; json_escape "$IP_TAILSCALE"; echo -n '"'
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echo -n ',"ip_public":"'; json_escape "$IP_PUBLIC"; echo -n '"'
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echo -n ',"os":"'; json_escape "$OS"; echo -n '"'
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echo -n ',"kernel":"'; json_escape "$KERNEL"; echo -n '"'
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echo -n ',"uptime":"'; json_escape "$UPTIME"; echo -n '"'
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echo -n ',"docker_version":"'; json_escape "$DOCKER_VERSION"; echo -n '"'
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echo '}'
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