[IVYNET-102] Add backups & HA

postgres/README.md

@@ -1,8 +1,10 @@
 # Overview
 
 This module provides a DB (Postgres) mostly for backend.
+By default it enables backup, but not HA.
 
 # Versions
+- postgres-2 - add HA and backup switch
 - postgres-1 - basic module for backend
 
 # TF Docs
@@ -36,6 +38,8 @@ No modules.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
+| <a name="input_availability"></a> [availability](#input\_availability) | Type of availability (normal=ZONAL, HA=REGIONAL) | `string` | `"ZONAL"` | no |
+| <a name="input_backup"></a> [backup](#input\_backup) | Switch to enable backups | `bool` | `true` | no |
 | <a name="input_db-size"></a> [db-size](#input\_db-size) | DB size/type | `string` | `"db-f1-micro"` | no |
 | <a name="input_db-version"></a> [db-version](#input\_db-version) | DB type and version (e.g. POSTGRES\_14) | `string` | `"POSTGRES_14"` | no |
 | <a name="input_deletion-protection"></a> [deletion-protection](#input\_deletion-protection) | Delete protection of DB | `bool` | `true` | no |

postgres/main.tf

@@ -20,6 +20,14 @@ resource "google_sql_database_instance" "this" {
         private_network = var.network-id
       }
     }
+    dynamic "backup_configuration" {
+      for_each = var.backup ? [1] : []
+      content {
+        enabled                        = true
+        point_in_time_recovery_enabled = true
+      }
+    }
+    availability_type = var.availability
   }
   depends_on = [google_service_networking_connection.this]
 }

postgres/tests/main.tftest.hcl

@@ -17,7 +17,7 @@ run "setup" {
 run "plan_not_net" {
   command = plan
   variables {
-    name            = "test"
+    name            = run.setup.name1
     network-id      = run.setup.net-id
     network-name    = run.setup.net-name
     private-network = false
@@ -27,7 +27,7 @@ run "plan_not_net" {
 run "plan_full" {
   command = plan
   variables {
-    name         = "test"
+    name         = run.setup.name2
     network-id   = run.setup.net-id
     network-name = run.setup.net-name
   }
@@ -36,7 +36,7 @@ run "plan_full" {
 run "apply_simple" {
   command = apply
   variables {
-    name                = "test"
+    name                = run.setup.name1
     deletion-protection = false
     db-size             = "db-g1-small"
     db-version          = "POSTGRES_15"
@@ -49,7 +49,7 @@ run "apply_simple" {
 run "apply_private" {
   command = apply
   variables {
-    name                = "test2"
+    name                = run.setup.name2
     deletion-protection = false
     network-id          = run.setup.net-id
     network-name        = run.setup.net-name

postgres/tests/setup/main.tf

@@ -1,11 +1,26 @@
+terraform {
+  required_providers {
+    random = {
+      source  = "hashicorp/random"
+      version = "3.5.1"
+    }
+  }
+}
+
+resource "random_pet" "name1" {
+}
+
+resource "random_pet" "name2" {
+}
+
 module "network" {
   source = "../../../network"
-  name   = "test44"
+  name   = random_pet.name1.id
 }
 
 module "vm" {
   source             = "../../../backend"
-  name               = "test44"
+  name               = random_pet.name1.id
   network-id         = module.network.network-id
   network-subnet-id  = module.network.subnet-id-backend
   network-proxy-cidr = module.network.subnet-cidr-proxy
@@ -30,3 +45,11 @@ output "net-name" {
 output "net-link" {
   value = module.network.network-link
 }
+
+output "name1" {
+  value = random_pet.name1.id
+}
+
+output "name2" {
+  value = random_pet.name2.id
+}

postgres/variables.tf

@@ -1,3 +1,19 @@
+variable "availability" {
+  default     = "ZONAL"
+  description = "Type of availability (normal=ZONAL, HA=REGIONAL)"
+  type        = string
+  validation {
+    condition     = contains(["ZONAL", "REGIONAL"], var.availability)
+    error_message = "It has to be 'ZONAL' or 'REGIONAL'"
+  }
+}
+
+variable "backup" {
+  default     = true
+  description = "Switch to enable backups"
+  type        = bool
+}
+
 variable "db-size" {
   default     = "db-f1-micro"
   description = "DB size/type"