23019da8e5
After node2 OOM incident, right-size memory across the cluster by setting requests=limits based on max_over_time(container_memory_working_set_bytes[7d]) with 1.3x headroom. Eliminates ~37Gi overcommit gap. Categories: - Safe equalization (50 containers): set req=lim where max7d well within target - Limit increases (8 containers): raise limits for services spiking above current - No Prometheus data (12 containers): conservatively set lim=req - Exception: nextcloud keeps req=256Mi/lim=8Gi due to Apache memory spikes Also increased dbaas namespace quota from 12Gi to 16Gi to accommodate mysql 4Gi limits across 3 replicas.
103 lines
2.5 KiB
HCL
103 lines
2.5 KiB
HCL
resource "kubernetes_namespace" "iscsi_csi" {
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metadata {
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name = "iscsi-csi"
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labels = {
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tier = var.tier
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}
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}
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}
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resource "helm_release" "democratic_csi" {
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namespace = kubernetes_namespace.iscsi_csi.metadata[0].name
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create_namespace = false
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name = "democratic-csi-iscsi"
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atomic = true
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timeout = 300
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repository = "https://democratic-csi.github.io/charts/"
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chart = "democratic-csi"
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values = [yamlencode({
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csiDriver = {
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name = "org.democratic-csi.iscsi"
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}
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storageClasses = [{
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name = "iscsi-truenas"
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defaultClass = false
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reclaimPolicy = "Retain"
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volumeBindingMode = "Immediate"
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allowVolumeExpansion = true
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parameters = {
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fsType = "ext4"
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}
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mountOptions = []
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}]
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controller = {
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replicas = 2
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driver = {
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resources = {
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requests = { cpu = "25m", memory = "192Mi" }
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limits = { memory = "192Mi" }
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}
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}
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}
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node = {
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driver = {
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resources = {
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requests = { cpu = "25m", memory = "192Mi" }
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limits = { memory = "192Mi" }
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}
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}
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hostPID = true
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hostPath = "/lib/modules"
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}
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driver = {
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config = {
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driver = "freenas-iscsi"
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instance_id = "truenas-iscsi"
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httpConnection = {
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protocol = "http"
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host = var.truenas_host
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port = 80
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apiKey = var.truenas_api_key
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}
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sshConnection = {
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host = var.truenas_host
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port = 22
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username = "root"
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privateKey = var.truenas_ssh_private_key
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}
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zfs = {
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datasetParentName = "main/iscsi"
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detachedSnapshotsDatasetParentName = "main/iscsi-snaps"
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}
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iscsi = {
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targetPortal = "${var.truenas_host}:3260"
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namePrefix = "csi-"
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nameSuffix = ""
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targetGroups = [{
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targetGroupPortalGroup = 1
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targetGroupInitiatorGroup = 1
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targetGroupAuthType = "None"
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}]
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extentInsecureTpc = true
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extentXenCompat = false
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extentDisablePhysicalBlocksize = true
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extentBlocksize = 512
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extentRpm = "SSD"
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extentAvailThreshold = 0
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}
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}
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}
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})]
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}
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