Add container/VM autodiscovery, optional username in config, and management scripts

app/gather_info.sh

@@ -156,4 +156,115 @@ else
     echo "installed=false"
 fi
 
+# --- Container / VM autodiscovery ---
+
+# Helper: collect basic stats by execing into a container
+# Usage: gather_container_stats <exec_prefix>
+# e.g. gather_container_stats "pct exec 100 --"
+gather_container_stats() {
+    local exec_cmd="$1"
+
+    # Memory
+    local mem_total mem_avail mem_used mem_pct
+    mem_total=$($exec_cmd cat /proc/meminfo 2>/dev/null | awk '/MemTotal/{print int($2/1024)}')
+    mem_avail=$($exec_cmd cat /proc/meminfo 2>/dev/null | awk '/MemAvailable/{print int($2/1024)}')
+    if [ -n "$mem_total" ] && [ -n "$mem_avail" ] && [ "$mem_total" -gt 0 ] 2>/dev/null; then
+        mem_used=$((mem_total - mem_avail))
+        mem_pct=$((mem_used * 100 / mem_total))
+        echo "mem_total_mb=$mem_total"
+        echo "mem_used_mb=$mem_used"
+        echo "mem_percent=$mem_pct"
+    fi
+
+    # Disk (rootfs)
+    local disk_info
+    disk_info=$($exec_cmd df -B1 / 2>/dev/null | tail -1)
+    if [ -n "$disk_info" ]; then
+        echo "disk_total=$(echo "$disk_info" | awk '{print $2}')"
+        echo "disk_used=$(echo "$disk_info" | awk '{print $3}')"
+        echo "disk_percent=$(echo "$disk_info" | awk '{gsub(/%/,""); print $5}')"
+    fi
+
+    # IP
+    local ip
+    ip=$($exec_cmd hostname -I 2>/dev/null | awk '{print $1}')
+    [ -n "$ip" ] && echo "ip=$ip"
+
+    # Uptime
+    local uptime_s
+    uptime_s=$($exec_cmd cut -d' ' -f1 /proc/uptime 2>/dev/null | cut -d. -f1)
+    [ -n "$uptime_s" ] && echo "uptime_seconds=$uptime_s"
+}
+
+# Proxmox LXC (pct)
+if command -v pct &>/dev/null; then
+    pct list 2>/dev/null | tail -n +2 | while read -r vmid status _ name _; do
+        [ -z "$vmid" ] && continue
+        echo "[container:pct-${vmid}]"
+        echo "type=lxc"
+        echo "platform=proxmox"
+        echo "id=$vmid"
+        echo "name=${name:-$vmid}"
+        echo "status=$status"
+        if [ "$status" = "running" ]; then
+            gather_container_stats "pct exec $vmid --"
+        fi
+    done
+fi
+
+# Proxmox VMs (qm)
+if command -v qm &>/dev/null; then
+    qm list 2>/dev/null | tail -n +2 | while read -r vmid name status _ mem _; do
+        [ -z "$vmid" ] && continue
+        echo "[container:qm-${vmid}]"
+        echo "type=vm"
+        echo "platform=proxmox"
+        echo "id=$vmid"
+        echo "name=${name:-$vmid}"
+        echo "status=$status"
+        [ -n "$mem" ] && echo "mem_allocated_mb=$mem"
+        # VM stats require guest agent - best effort
+        if [ "$status" = "running" ]; then
+            agent_test=$(qm guest exec "$vmid" -- cat /proc/meminfo 2>/dev/null)
+            if [ -n "$agent_test" ]; then
+                gather_container_stats "qm guest exec $vmid --"
+            fi
+        fi
+    done
+fi
+
+# Plain LXC (lxc/lxd)
+if command -v lxc &>/dev/null && ! command -v pct &>/dev/null; then
+    lxc list --format csv -c nsN 2>/dev/null | while IFS=',' read -r name status network; do
+        [ -z "$name" ] && continue
+        echo "[container:lxc-${name}]"
+        echo "type=lxc"
+        echo "platform=lxd"
+        echo "name=$name"
+        echo "status=$status"
+        if [ "$status" = "RUNNING" ]; then
+            gather_container_stats "lxc exec $name --"
+            lxd_ip=$(echo "$network" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -1)
+            [ -n "$lxd_ip" ] && echo "ip=$lxd_ip"
+        fi
+    done
+fi
+
+# libvirt VMs (virsh)
+if command -v virsh &>/dev/null; then
+    virsh list --all --name 2>/dev/null | while read -r name; do
+        [ -z "$name" ] && continue
+        state=$(virsh domstate "$name" 2>/dev/null | head -1)
+        echo "[container:virsh-${name}]"
+        echo "type=vm"
+        echo "platform=libvirt"
+        echo "name=$name"
+        echo "status=$state"
+        if [ "$state" = "running" ]; then
+            virsh_ip=$(virsh domifaddr "$name" --source agent 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -1)
+            [ -n "$virsh_ip" ] && echo "ip=$virsh_ip"
+        fi
+    done
+fi
+
 echo "[end]"