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[ci skip] dbaas: add custom resource quota (12Gi req mem) to support 3-node MySQL cluster

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This commit is contained in:
Viktor Barzin 2026-03-01 15:47:11 +00:00
parent 5676ee746e
commit da943c71ac
1 changed files with 58 additions and 5 deletions
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63
stacks/platform/modules/dbaas/main.tf
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@ -18,7 +18,24 @@ resource "kubernetes_namespace" "dbaas" {
metadata {
name = "dbaas"
labels = {
tier = var.tier
tier = var.tier
"resource-governance/custom-quota" = "true"
}
}
}
resource "kubernetes_resource_quota" "dbaas" {
metadata {
name = "dbaas-quota"
namespace = kubernetes_namespace.dbaas.metadata[0].name
}
spec {
hard = {
"requests.cpu" = "8"
"requests.memory" = "12Gi"
"limits.cpu" = "32"
"limits.memory" = "64Gi"
pods = "30"
}
}
}
@ -60,7 +77,7 @@ resource "helm_release" "mysql_cluster" {
values = [yamlencode({
serverInstances = 3
routerInstances = 1
serverVersion = "9.2.0"
serverVersion = "8.4.4"
credentials = {
root = {
@ -102,6 +119,19 @@ resource "helm_release" "mysql_cluster" {
}
podSpec = {
affinity = {
nodeAffinity = {
requiredDuringSchedulingIgnoredDuringExecution = {
nodeSelectorTerms = [{
matchExpressions = [{
key = "kubernetes.io/hostname"
operator = "NotIn"
values = ["k8s-node2"]
}]
}]
}
}
}
containers = [{
name = "mysql"
resources = {
@ -115,6 +145,29 @@ resource "helm_release" "mysql_cluster" {
}
}
}]
initContainers = [
{
name = "fixdatadir"
resources = {
requests = { memory = "64Mi", cpu = "25m" }
limits = { memory = "256Mi", cpu = "500m" }
}
},
{
name = "initconf"
resources = {
requests = { memory = "256Mi", cpu = "50m" }
limits = { memory = "1Gi", cpu = "1" }
}
},
{
name = "initmysql"
resources = {
requests = { memory = "512Mi", cpu = "250m" }
limits = { memory = "2Gi", cpu = "2" }
}
}
]
}
})]
@ -132,9 +185,9 @@ resource "kubernetes_service" "mysql" {
spec {
publish_not_ready_addresses = true # bypass InnoDB Cluster readiness gate during partial failures
selector = {
"component" = "mysqld"
"mysql.oracle.com/cluster" = "mysql-cluster"
"statefulset.kubernetes.io/pod-name" = "mysql-cluster-1" # pin to healthy primary until cluster recovers
"component" = "mysqld"
"mysql.oracle.com/cluster" = "mysql-cluster"
"mysql.oracle.com/cluster-role" = "PRIMARY"
}
port {
port = 3306