Add redis sentinel to gstg.

environments/gprd/main.tf

@@ -306,7 +306,7 @@ module "redis-cache" {
   project                 = "${var.project}"
   public_ports            = "${var.public_ports["redis-cache"]}"
   region                  = "${var.region}"
-  redis_chef_run_list     = "\"role[gprd-base-db-redis-server-cache]\""
+  redis_chef_run_list     = "\"role[${var.environment}-base-db-redis-server-cache]\""
   redis_count             = "${var.node_count["redis-cache"]}"
   redis_data_disk_size    = 100
   redis_data_disk_type    = "pd-ssd"
@@ -319,6 +319,7 @@ module "redis-cache" {
   source                  = "../../modules/google/generic-stor-redis"
   tier                    = "db"
   vpc                     = "${module.network.self_link}"
+  service_account_email   = "${var.service_account_email}"
 }
 
 ##################################

environments/gstg/main.tf

@@ -287,25 +287,29 @@ module "redis" {
 }
 
 module "redis-cache" {
-  allow_stopping_for_update = true
-  bootstrap_version         = 4
-  chef_run_list             = "\"role[${var.environment}-base-db-redis-server-cache]\""
-  data_disk_size            = 100
-  data_disk_type            = "pd-ssd"
-  chef_provision            = "${var.chef_provision}"
-  dns_zone_name             = "${var.dns_zone_name}"
-  environment               = "${var.environment}"
-  ip_cidr_range             = "${var.subnetworks["redis-cache"]}"
-  machine_type              = "${var.machine_types["redis-cache"]}"
-  name                      = "redis-cache"
-  node_count                = "${var.node_count["redis-cache"]}"
-  project                   = "${var.project}"
-  public_ports              = "${var.public_ports["redis-cache"]}"
-  region                    = "${var.region}"
-  service_account_email     = "${var.service_account_email}"
-  source                    = "../../modules/google/generic-stor"
-  tier                      = "db"
-  vpc                       = "${module.network.self_link}"
+  bootstrap_version       = 4
+  chef_provision          = "${var.chef_provision}"
+  dns_zone_name           = "${var.dns_zone_name}"
+  environment             = "${var.environment}"
+  ip_cidr_range           = "${var.subnetworks["redis-cache"]}"
+  name                    = "redis-cache"
+  project                 = "${var.project}"
+  public_ports            = "${var.public_ports["redis-cache"]}"
+  region                  = "${var.region}"
+  redis_chef_run_list     = "\"role[gprd-base-db-redis-server-cache]\""
+  redis_count             = "${var.node_count["redis-cache"]}"
+  redis_data_disk_size    = 100
+  redis_data_disk_type    = "pd-ssd"
+  redis_machine_type      = "${var.machine_types["redis-cache"]}"
+  sentinel_chef_run_list  = "\"role[${var.environment}-base-db-redis-sentinel-cache]\""
+  sentinel_count          = "${var.node_count["redis-cache-sentinel"]}"
+  sentinel_data_disk_size = 100
+  sentinel_data_disk_type = "pd-ssd"
+  sentinel_machine_type   = "${var.machine_types["redis-cache-sentinel"]}"
+  service_account_email   = "${var.service_account_email}"
+  source                  = "../../modules/google/generic-stor-redis"
+  tier                    = "db"
+  vpc                     = "${module.network.self_link}"
 }
 
 ##################################

environments/gstg/variables.tf

@@ -224,6 +224,7 @@ variable "machine_types" {
     "monitoring"            = "n1-standard-4"
     "redis"                 = "n1-standard-8"
     "redis-cache"           = "n1-standard-4"
+    "redis-cache-sentinel"  = "n1-standard-1"
     "registry"              = "n1-standard-2"
     "sidekiq-asap"          = "n1-standard-8"
     "sidekiq-besteffort"    = "n1-standard-8"
@@ -261,7 +262,8 @@ variable "node_count" {
     "pages"                 = 1
     "pgb"                   = 1
     "redis"                 = 1
-    "redis-cache"           = 1
+    "redis-cache"           = 3
+    "redis-cache-sentinel"  = 3
     "registry"              = 1
     "share"                 = 1
     "sidekiq-asap"          = 1

modules/google/generic-stor-redis/redis.tf

@@ -52,7 +52,7 @@ resource "google_compute_instance" "instance_with_attached_disk" {
 
   service_account {
     // this should be the instance under which the instance should be running, rather than the one creating it...
-    email = "[email protected]"
+    email = "${var.service_account_email}"
 
     // all the defaults plus cloudkms to access kms
     scopes = [

modules/google/generic-stor-redis/sentinel.tf

@@ -51,7 +51,7 @@ resource "google_compute_instance" "sentinel_instance_with_attached_disk" {
 
   service_account {
     // this should be the instance under which the instance should be running, rather than the one creating it...
-    email = "[email protected]"
+    email = "${var.service_account_email}"
 
     // all the defaults plus cloudkms to access kms
     scopes = [

modules/google/generic-stor-redis/variables.tf

@@ -163,3 +163,8 @@ variable "zone" {
   type    = "string"
   default = ""
 }
+
+variable "service_account_email" {
+  type        = "string"
+  description = "Service account emails under which the instance is running"
+}