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--- proxmox:ct_op_basis_van_csv [2025/11/23 15:58] – [context] admin
+++ proxmox:ct_op_basis_van_csv [2025/11/23 16:05] (current) – admin
@@ Line 18: / Line 18: @@
 CSV_FILE="vlans.csv"
-# Prefix to add to VLAN IDs below 100
+# Prefix for VLAN IDs <100
 VMID_PREFIX=1
+# Minimum free space warning threshold for thin pool (in %)
+THIN_POOL_WARNING=90
+THIN_POOL="pve/data"
+# Function to find next available VMID
+get_next_vmid() {
+    local start=$1
+    while pct status "$start" &>/dev/null; do
+        start=$((start + 1))
+    done
+    echo "$start"
+}
+# Function to check thin pool usage
+check_thin_pool() {
+    local usage
+    usage=$(lvs --noheadings -o data_percent "$THIN_POOL" | tr -d ' %')
+    if [ "$usage" -ge "$THIN_POOL_WARNING" ]; then
+        echo "ERROR: Thin pool $THIN_POOL is ${usage}% full. Aborting to prevent overcommit."
+        exit 1
+    fi
+}
 # Loop through CSV, skip header
 tail -n +2 "$CSV_FILE" | while IFS=',' read -r vlanID vlanname; do
-    # Ensure VMID is >= 100
+    # Check thin pool usage before each clone
+    check_thin_pool
+    # Ensure VMID is ≥100
     if [ "$vlanID" -lt 100 ]; then
-        VMID="${VMID_PREFIX}${vlanID}"
+        tentative_vmid="${VMID_PREFIX}${vlanID}"
     else
-        VMID="$vlanID"
+        tentative_vmid="$vlanID"
     fi
-    echo "Cloning container from template $TEMPLATE_ID with new VMID $VMID and hostname $vlanname"
+    # Get the next available VMID if tentative_vmid is taken
+    VMID=$(get_next_vmid "$tentative_vmid")
+    # Sanitize hostname: replace underscores with hyphens
+    SAFE_HOSTNAME=$(echo "$vlanname" | tr '_' '-')
+    echo "Cloning template $TEMPLATE_ID to VMID $VMID with hostname $SAFE_HOSTNAME (original VLAN name: $vlanname)"
     # Clone the container
-    pct clone "$TEMPLATE_ID" "$VMID" --hostname "$vlanname" --full 1
+    pct clone "$TEMPLATE_ID" "$VMID" --hostname "$SAFE_HOSTNAME" --full 1
     # Configure network after cloning
@@ Line 41: / Line 73: @@
     pct start "$VMID"
-    echo "Container $VMID ($vlanname) cloned and started successfully."
+    echo "Container $VMID ($SAFE_HOSTNAME) cloned and started successfully."
 done
 </code>
 ===== meer info =====