infra/stacks/platform/modules/monitoring/grafana.tf
Viktor Barzin 51d77369de
[ci skip] fix: add mount_options to all NFS PVs (soft,timeo=30,retrans=3)
Critical fix: StorageClass mountOptions only apply during dynamic
provisioning. Our static PVs (created by Terraform) were missing
mount_options, so all NFS mounts defaulted to hard,timeo=600 —
the exact stale mount behavior we were trying to eliminate.

Adds mount_options directly to the nfs_volume module PV spec and
to the monitoring PVs (prometheus, loki, alertmanager).

Requires re-applying all stacks to propagate to existing PVs.
2026-03-02 20:23:36 +00:00

81 lines
2 KiB
HCL

# resource "kubernetes_persistent_volume" "prometheus_grafana_pv" {
# metadata {
# name = "grafana-pv"
# }
# spec {
# capacity = {
# "storage" = "2Gi"
# }
# access_modes = ["ReadWriteOnce"]
# persistent_volume_source {
# nfs {
# path = "/mnt/main/grafana"
# server = var.nfs_server
# }
# # iscsi {
# # target_portal = "iscsi.viktorbarzin.lan:3260"
# # iqn = "iqn.2020-12.lan.viktorbarzin:storage:monitoring:grafana"
# # lun = 0
# # fs_type = "ext4"
# # }
# }
# }
# }
resource "kubernetes_persistent_volume" "alertmanager_pv" {
metadata {
name = "alertmanager-pv"
}
spec {
capacity = {
"storage" = "2Gi"
}
access_modes = ["ReadWriteOnce"]
persistent_volume_source {
csi {
driver = "nfs.csi.k8s.io"
volume_handle = "alertmanager-pv"
volume_attributes = {
server = var.nfs_server
share = "/mnt/main/alertmanager"
}
}
}
mount_options = [
"soft",
"timeo=30",
"retrans=3",
"actimeo=5",
]
storage_class_name = "nfs-truenas"
}
}
# resource "kubernetes_persistent_volume_claim" "grafana_pvc" {
# metadata {
# name = "grafana-pvc"
# namespace = kubernetes_namespace.monitoring.metadata[0].name
# }
# spec {
# access_modes = ["ReadWriteOnce"]
# resources {
# requests = {
# "storage" = "2Gi"
# }
# }
# }
# }
resource "helm_release" "grafana" {
namespace = kubernetes_namespace.monitoring.metadata[0].name
create_namespace = true
name = "grafana"
atomic = true
timeout = 600
repository = "https://grafana.github.io/helm-charts"
chart = "grafana"
values = [templatefile("${path.module}/grafana_chart_values.yaml", { db_password = var.grafana_db_password, grafana_admin_password = var.grafana_admin_password, mysql_host = var.mysql_host })]
}