Add templating of network interfaces

Closes #1

group_vars/default/pvc.yml

@@ -1,7 +1,16 @@
 ---
+# Logging
+pvc_log_to_file: True
+pvc_log_to_stdout: True
+pvc_log_keepalives: True
+pvc_log_keepalive_cluster_details: True
+pvc_log_keepalive_storage_details: True
+pvc_log_console_lines: 1000
+
 # Ceph storage
 pvc_ceph_storage_secret_uuid: ""            # Use uuidgen to generate
-# Database
+
+# Database configurations
 pvc_dns_database_name: "pvcdns"
 pvc_dns_database_user: "pvcdns"
 pvc_dns_database_password: ""               # Use pwgen to generate
@@ -9,7 +18,17 @@ pvc_replication_database_user: "replicator"
 pvc_replication_database_password: ""       # Use pwgen to generate
 pvc_superuser_database_user: "postgres"
 pvc_superuser_database_password: ""         # Use pwgen to generate
-# Coordinators
+
+# Network routing configuration
+# > The ASN should be a private ASN number.
+# > The list of routers are those which will learn routes to the PVC client networks via BGP;
+#   they should speak BGP and allow sessions from the PVC nodes.
+pvc_asn: "65500"
+pvc_routers:
+  - "192.168.100.1"
+
+# Node list
+# > Every node configured with this playbook must be specified in this list.
 pvc_nodes:
   - hostname: "pvchv1"
     is_coordinator: yes
@@ -50,30 +69,22 @@ pvc_nodes:
     ipmi_host: "pvchv3-lom.{{ local_domain }}"
     ipmi_user: "{{ username_ipmi_host }}"
     ipmi_password: "{{ passwd_ipmi_host }}"
-# Networks
-pvc_asn: "65500"
-pvc_routers:
-  - "192.168.100.1"
-pvc_upstream_device: "enp1s0f0"                 # Set to your actual NIC device (or bond, vLAN, etc.)
-pvc_upstream_mtu: "1500"
-pvc_upstream_domain: "{{ local_domain }}"
-pvc_upstream_subnet: "192.168.100.0/23"
-pvc_upstream_floatingip: "192.168.100.10/23"
-pvc_upstream_gatewayip: "192.168.100.1"
-pvc_cluster_device: "vlan1001"                  # Set to your actual NIC device (usually a vLAN)
-pvc_cluster_mtu: "1500"
-pvc_cluster_domain: "pvc.local"
-pvc_cluster_subnet: "10.0.0.0/24"
-pvc_cluster_floatingip: "10.0.0.254/24"
-pvc_storage_device: "vlan1002"                  # Set to your actual NIC device (usually a vLAN)
-pvc_storage_mtu: "1500"
-pvc_storage_domain: "pvc.storage"
-pvc_storage_subnet: "10.0.1.0/24"
-pvc_storage_floatingip: "10.0.1.254/24"
-# Logging
-pvc_log_to_file: True
-pvc_log_to_stdout: True
-pvc_log_keepalives: True
-pvc_log_keepalive_cluster_details: True
-pvc_log_keepalive_storage_details: True
-pvc_log_console_lines: 1000
+
+# Configuration file networks
+# > Taken from base.yml's configuration; do not modify this section.
+pvc_upstream_device: "{{ networks['upstream']['device'] }}"
+pvc_upstream_mtu: "{{ networks['upstream']['mtu'] }}"
+pvc_upstream_domain: "{{ networks['upstream']['domain'] }}"
+pvc_upstream_subnet: "{{ networks['upstream']['subnet'] }}"
+pvc_upstream_floatingip: "{{ networks['upstream']['floating_ip'] }}"
+pvc_upstream_gatewayip: "{{ networks['upstream']['gateway_ip'] }}"
+pvc_cluster_device: "{{ networks['cluster']['device'] }}"
+pvc_cluster_mtu: "{{ networks['cluster']['mtu'] }}"
+pvc_cluster_domain: "{{ networks['cluster']['domain'] }}"
+pvc_cluster_subnet: "{{ networks['cluster']['subnet'] }}"
+pvc_cluster_floatingip: "{{ networks['cluster']['floating_ip'] }}"
+pvc_storage_device: "{{ networks['storage']['device'] }}"
+pvc_storage_mtu: "{{ networks['storage']['mtu'] }}"
+pvc_storage_domain: "{{ networks['storage']['domain'] }}"
+pvc_storage_subnet: "{{ networks['storage']['subnet'] }}"
+pvc_storage_floatingip: "{{ networks['storage']['floating_ip'] }}"