Allow to deploy terraform on ovn environment

Related-Prod: PRODX-40904
Change-Id: I948970f5dc7e82a6de537b12fa103c1e81ae125d

terraform/000-main.tf

@@ -1,3 +1,8 @@
+provider "openstack" {
+  use_octavia = "true"
+  cloud = "admin"
+}
+
 # Define OpenStack provider
 terraform {
   required_providers {

terraform/001-input.tf

@@ -71,6 +71,12 @@ variable "db_volume_size" {
   description = "Volume size of disk for database"
   default     = 1
 }
+variable "database_lb_algorithm" {
+  type        = string
+  description = "LB algorithm for database"
+  default     = "SOURCE_IP"
+}
+
 
 # Application
 variable "app_instance_names" {
@@ -110,6 +116,16 @@ variable "app_database" {
     user = "refapp"
   }
 }
+variable "app_lb_algorithm" {
+  type    = string
+  default = "ROUND_ROBIN"
+  description = "The lb algorithm for app"
+}
+variable "app_lb_protocol" {
+  type    = string
+  default = "HTTP"
+  description = "The lb protoco for app"
+}
 variable "database_docker_image" {
   type        = string
   description = "The link to docker image with Mairadb"

terraform/070-loadbalancer.tf

@@ -9,16 +9,16 @@ resource "openstack_lb_loadbalancer_v2" "app" {
 # Create listener
 resource "openstack_lb_listener_v2" "app" {
   name            = "${var.identifier}-listener-app"
-  protocol        = "HTTP"
+  protocol        = var.app_lb_protocol
   protocol_port   = var.app_port
   loadbalancer_id = openstack_lb_loadbalancer_v2.app.id
 }
 
 # Set method for load balance charge between instance
 resource "openstack_lb_pool_v2" "app" {
   name        = "${var.identifier}-pool-app"
-  protocol    = "HTTP"
-  lb_method   = "ROUND_ROBIN"
+  protocol    = var.app_lb_protocol
+  lb_method   = var.app_lb_algorithm
   listener_id = openstack_lb_listener_v2.app.id
 }
 
@@ -36,7 +36,7 @@ resource "openstack_lb_member_v2" "app" {
 resource "openstack_lb_monitor_v2" "app" {
   name        = "${var.identifier}-monitor-app"
   pool_id     = openstack_lb_pool_v2.app.id
-  type        = "HTTP"
+  type        = var.app_lb_protocol
   delay       = 5
   timeout     = 5
   max_retries = 5
@@ -70,7 +70,7 @@ resource "openstack_lb_listener_v2" "db" {
 resource "openstack_lb_pool_v2" "db" {
   name        = "${var.identifier}-pool-db"
   protocol    = "TCP"
-  lb_method   = "SOURCE_IP"
+  lb_method   = var.database_lb_algorithm
   listener_id = openstack_lb_listener_v2.db.id
 
   persistence {

terraform/tfvars/ovn.tfvars

@@ -0,0 +1,3 @@
+app_lb_algorithm = "SOURCE_IP_PORT"
+app_lb_protocol = "TCP"
+database_lb_algorithm = "SOURCE_IP_PORT"

terraform/tfvars/ovs.tfvars

@@ -0,0 +1,3 @@
+app_lb_algorithm = "ROUND_ROBIN"
+app_lb_protocol = "HTTP"
+database_lb_algorithm = "SOURCE_IP"