Refactoring + final touches

ansible/inventories/_template/group_vars/all.yml

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+---
+# ============================================================
+# Proxmox Post-Install - Group Variables Template
+# Copy this to your inventory folder as group_vars/all.yml
+# ============================================================
+
+# --- Deployment Toggles ---
+# standalone_mode: Set to true to skip ALL cluster and Linstor tasks,
+#   even when the inventory contains multiple nodes (useful for independent nodes per customer).
+standalone_mode: false
+
+# deploy_linstor: Set to true to install and configure Linstor + DRBD storage.
+#   Requires at least 3 nodes and standalone_mode: false.
+deploy_linstor: false
+
+# disable_ipv6: Set to true to disable IPv6 system-wide via sysctl.
+#   Useful when IPv6 is unrouted and causes connection timeouts (e.g. apt, curl).
+disable_ipv6: false
+
+# wipe_linstor_disks: Set to true to wipe partition tables and signatures from raw block devices
+#   before creating LVM VGs. Only affects targets defined as /dev/... paths.
+#   WARNING: destructive — only set on first deployment, never on a running cluster.
+wipe_linstor_disks: false
+
+# --- Proxmox Cluster ---
+pve_cluster_name: "example-cluster"
+# pve_enterprise_key: ""  # Optional: global key (prefer per-host key in hosts.ini)
+
+# --- Linstor / LINBIT Repository ---
+# Auto-calculated as: Debian major version - 4 (e.g. Debian 13 = proxmox-9).
+# Override manually if LINBIT publishes a differently-named repo for new Proxmox versions.
+# linbit_proxmox_version: 9
+
+# --- Linstor HA Controller ---
+# ha_pool: Name of the Linstor storage pool to use for the controller HA volume.
+ha_pool: "fast_pool_1"
+# ha_vip: Virtual IP that follows the active Linstor controller across nodes.
+ha_vip: "192.168.2.4"
+# ha_vip_cidr: Prefix length for the VIP address (e.g. 24 for /24).
+ha_vip_cidr: "24"
+
+# --- Linstor Storage Pools ---
+# Each entry defines one Resource Group, composed of one storage pool per node.
+# All pools in the same entry share the same pool_name across nodes.
+#
+# TARGET RULES:
+#   - Use a raw block device path (/dev/sdb) to auto-create VG + LVM Thin Pool.
+#   - Use an existing thin-pool path (vg_name/thin_name, e.g. "pve/data") to register
+#     an already-existing LVM thin pool WITHOUT touching existing data.
+#
+# Keys under "targets" must match the Ansible inventory_hostname of each node
+# (i.e. the left-hand label in hosts.ini, e.g. "pve-node-01").
+linstor_storage_pools:
+  - pool_name: "fast_pool_1"
+    rg_name: "fast_pool_1"
+    vg_name: "pve"
+    thin_name: "data"
+    targets:
+      pve-node-01: "pve/data"   # Register existing pve/data thin pool
+      pve-node-02: "pve/data"
+      pve-node-03: "pve/data"
+
+  - pool_name: "slow_pool_1"
+    rg_name: "slow_pool_1"
+    vg_name: "sp1"
+    thin_name: "data"
+    targets:
+      pve-node-01: "/dev/sdb"   # Format /dev/sdb as VG sp1 + thin pool data
+      pve-node-02: "/dev/sdb"
+      pve-node-03: "/dev/sdb"

ansible/inventories/_template/group_vars/all.yml.example

@@ -1,37 +0,0 @@
----
-# Deployment Toggles
-standalone_mode: true # Set to true to bypass all Corosync/Linstor tasks for independent nodes
-deploy_linstor: false # Set to true to install and configure Linstor/DRBD
-
-# Proxmox Cluster Configuration
-pve_cluster_name: "example-cluster"
-
-# High Availability Controller Configuration
-ha_pool: "fast_pool_1"
-ha_vip: "192.168.2.4"
-ha_vip_cidr: "29"
-
-# Linstor Storage Pools Configuration
-# You can add or remove pools as needed
-
-# TARGET RULES: 
-# Use raw disk (/dev/sdb) to wipe/create LVM
-# Use existing thin-pool path (pve/data) to register safely (data won't be deleted)
-linstor_storage_pools:
-  - pool_name: "fast_pool_1"
-    rg_name: "fast_pool_1"
-    vg_name: "pve"
-    thin_name: "data"
-    targets:
-      pve-node-01: "pve/data" 
-      pve-node-02: "pve/data"
-      pve-node-03: "pve/data"
-
-  - pool_name: "slow_pool_1"
-    rg_name: "slow_pool_1"
-    vg_name: "sp1"
-    thin_name: "data"
-    targets:
-      pve-node-01: "/dev/sda" 
-      pve-node-02: "/dev/sda"
-      pve-node-03: "/dev/sda"