feat: expose log_level and log_format

Author: jamilbk

main.tf

@@ -79,6 +79,8 @@ resource "azurerm_orchestrated_virtual_machine_scale_set" "firezone" {
       export FIREZONE_NAME="${var.firezone_name}"
       export FIREZONE_ID="$(head -c 32 /dev/urandom | sha256sum | cut -d' ' -f1)"
       export FIREZONE_API_URL="${var.firezone_api_url}"
+      export LOG_LEVEL="${var.log_level}"
+      export LOG_FORMAT="${var.log_format}"
 
       # Download and execute the Firezone installation script
       # The extension handler will retry this automatically if it fails

variables.tf

@@ -99,3 +99,22 @@ variable "platform_fault_domain_count" {
   type        = number
   default     = 3
 }
+
+variable "log_level" {
+  description = "Sets RUST_LOG environment variable which applications should use to configure Rust Logger. Default: 'info'."
+  nullable    = false
+  type        = string
+  default     = "info"
+}
+
+variable "log_format" {
+  description = "Sets RUST_LOG_FORMAT environment variable which applications should use to configure Rust Logger format. Default: 'human'."
+  nullable    = false
+  type        = string
+  default     = "human"
+
+  validation {
+    condition     = contains(["human", "json"], var.log_format)
+    error_message = "log_format must be either 'human' or 'json'."
+  }
+}