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loki-stack.tf
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locals {
loki-stack = merge(
local.helm_defaults,
{
name = "loki-stack"
namespace = "monitoring"
chart = "loki-stack"
repository = "https://grafana.github.io/helm-charts"
create_ns = false
enabled = false
chart_version = "2.3.1"
default_network_policy = true
},
var.loki-stack
)
values_loki-stack = <<VALUES
loki:
priorityClassName: ${local.priority-class["create"] ? kubernetes_priority_class.kubernetes_addons[0].metadata[0].name : ""}
promtail:
priorityClassName: ${local.priority-class-ds["create"] ? kubernetes_priority_class.kubernetes_addons_ds[0].metadata[0].name : ""}
VALUES
}
resource "kubernetes_namespace" "loki-stack" {
count = local.loki-stack["enabled"] && local.loki-stack["create_ns"] ? 1 : 0
metadata {
labels = {
name = local.loki-stack["namespace"]
"${local.labels_prefix}/component" = "monitoring"
}
name = local.loki-stack["namespace"]
}
}
resource "helm_release" "loki-stack" {
count = local.loki-stack["enabled"] ? 1 : 0
repository = local.loki-stack["repository"]
name = local.loki-stack["name"]
chart = local.loki-stack["chart"]
version = local.loki-stack["chart_version"]
timeout = local.loki-stack["timeout"]
force_update = local.loki-stack["force_update"]
recreate_pods = local.loki-stack["recreate_pods"]
wait = local.loki-stack["wait"]
atomic = local.loki-stack["atomic"]
cleanup_on_fail = local.loki-stack["cleanup_on_fail"]
dependency_update = local.loki-stack["dependency_update"]
disable_crd_hooks = local.loki-stack["disable_crd_hooks"]
disable_webhooks = local.loki-stack["disable_webhooks"]
render_subchart_notes = local.loki-stack["render_subchart_notes"]
replace = local.loki-stack["replace"]
reset_values = local.loki-stack["reset_values"]
reuse_values = local.loki-stack["reuse_values"]
skip_crds = local.loki-stack["skip_crds"]
verify = local.loki-stack["verify"]
values = [
local.values_loki-stack,
local.loki-stack["extra_values"]
]
namespace = local.loki-stack["create_ns"] ? kubernetes_namespace.loki-stack.*.metadata.0.name[count.index] : local.loki-stack["namespace"]
depends_on = [
helm_release.kube-prometheus-stack
]
}
resource "kubernetes_network_policy" "loki-stack_default_deny" {
count = local.loki-stack["create_ns"] && local.loki-stack["enabled"] && local.loki-stack["default_network_policy"] ? 1 : 0
metadata {
name = "${kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]}-default-deny"
namespace = kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]
}
spec {
pod_selector {
}
policy_types = ["Ingress"]
}
}
resource "kubernetes_network_policy" "loki-stack_allow_namespace" {
count = local.loki-stack["create_ns"] && local.loki-stack["enabled"] && local.loki-stack["default_network_policy"] ? 1 : 0
metadata {
name = "${kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]}-allow-namespace"
namespace = kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]
}
spec {
pod_selector {
}
ingress {
from {
namespace_selector {
match_labels = {
name = kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]
}
}
}
}
policy_types = ["Ingress"]
}
}
resource "kubernetes_network_policy" "loki-stack_allow_ingress" {
count = local.loki-stack["create_ns"] && local.loki-stack["enabled"] && local.loki-stack["default_network_policy"] ? 1 : 0
metadata {
name = "${kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]}-allow-ingress"
namespace = kubernetes_namespace.loki-stack.*.metadata.0.name[count.index]
}
spec {
pod_selector {
}
ingress {
from {
namespace_selector {
match_labels = {
"${local.labels_prefix}/component" = "ingress"
}
}
}
}
policy_types = ["Ingress"]
}
}