infra/stacks/platform/modules/monitoring/caretta.tf
Viktor Barzin 15b0b26a05 equalize memory req=lim across 70+ containers using Prometheus 7d max data
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.
2026-03-18 08:04:00 +00:00

62 lines
1.3 KiB
HCL

resource "helm_release" "caretta" {
namespace = kubernetes_namespace.monitoring.metadata[0].name
create_namespace = true
name = "caretta"
repository = "https://helm.groundcover.com/"
chart = "caretta"
version = "0.0.16"
values = [yamlencode({
grafana = {
enabled = false
}
victoria-metrics-single = {
enabled = false
}
tolerations = [
{
key = "node-role.kubernetes.io/control-plane"
operator = "Exists"
effect = "NoSchedule"
},
{
key = "nvidia.com/gpu"
operator = "Exists"
effect = "NoSchedule"
}
]
resources = {
requests = {
cpu = "10m"
memory = "768Mi"
}
limits = {
memory = "768Mi"
}
}
})]
}
resource "kubernetes_service" "caretta_metrics" {
metadata {
name = "caretta-metrics"
namespace = kubernetes_namespace.monitoring.metadata[0].name
labels = {
app = "caretta"
}
}
spec {
selector = {
app = "caretta"
}
port {
name = "metrics"
port = 7117
target_port = 7117
protocol = "TCP"
}
}
}
# Caretta dashboard is now loaded via the grafana_dashboards for_each in grafana.tf