feat: added network template and vars file

builds/linux/ubuntu/20-04-lts/data/network.pkrtpl.hcl

@@ -0,0 +1,19 @@
+  network:
+    network:
+      version: 2
+      ethernets:
+%{ if ip != null ~}
+        ${device}:
+          dhcp4: false
+          addresses:
+            - ${ip}/${netmask}
+          gateway4: ${gateway}
+          nameservers:
+            addresses:
+%{ for item in dns ~}
+              - ${item}
+%{ endfor ~}
+%{ else ~}
+        ${device}:
+          dhcp4: true
+%{ endif ~}

builds/linux/ubuntu/20-04-lts/variables-network.pkr.hcl

@@ -0,0 +1,36 @@
+/*
+    DESCRIPTION:
+    Debian Linux 11 network variables used by the Packer Plugin for VMware vSphere (vsphere-iso).
+*/
+
+// VM Network Settings
+
+variable "vm_network_device" {
+  type        = string
+  description = "The network device of the VM."
+  default     = "ens18"
+}
+
+variable "vm_ip_address" {
+  type        = string
+  description = "The IP address of the VM (e.g. 172.16.100.192)."
+  default     = null
+}
+
+variable "vm_ip_netmask" {
+  type        = number
+  description = "The netmask of the VM (e.g. 24)."
+  default     = null
+}
+
+variable "vm_ip_gateway" {
+  type        = string
+  description = "The gateway of the VM (e.g. 172.16.100.1)."
+  default     = null
+}
+
+variable "vm_dns_list" {
+  type        = list(string)
+  description = "The nameservers of the VM."
+  default     = []
+}