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feat(cloudsql-instance): allow overriding tier per read replica #28

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Merged
Calvin-Cheng1 merged 2 commits into from
May 15, 2026
+4 −2
Merged

feat(cloudsql-instance): allow overriding tier per read replica #28

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c8e59cb
feat(cloudsql-instance): allow overriding tier per read replica
piotr-tokaj Apr 19, 2026
b23322e
Disallow null tier
piotr-tokaj May 15, 2026
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2 changes: 1 addition & 1 deletion modules/cloudsql-instance/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -215,7 +215,7 @@ resource "google_sql_database_instance" "replicas" {
master_instance_name = google_sql_database_instance.primary.name

settings {
tier = var.tier
tier = coalesce(each.value.tier, var.tier)
edition = var.edition
deletion_protection_enabled = var.gcp_deletion_protection
disk_autoresize = var.disk_size == null
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4 changes: 3 additions & 1 deletion modules/cloudsql-instance/variables.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -239,10 +239,11 @@ variable "region" {
}

variable "replicas" {
description = "Map of NAME=> {REGION, KMS_KEY} for additional read replicas. Set to null to disable replica creation."
description = "Map of NAME=> {REGION, KMS_KEY, TIER} for additional read replicas. Tier defaults to the primary instance tier when unset. Set to null to disable replica creation."
type = map(object({
region = string
encryption_key_name = optional(string)
tier = optional(string)
}))
default = {}
nullable = false
Expand Down Expand Up @@ -287,6 +288,7 @@ variable "terraform_deletion_protection" {
variable "tier" {
description = "The machine type to use for the instances."
type = string
nullable = false
}

variable "time_zone" {
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