From 916b0ef90e0adc55b17320446acf54be0480ea62 Mon Sep 17 00:00:00 2001
From: Hao Ke <hao.ke@auryc.com>
Date: Fri, 20 Nov 2020 12:09:48 -0500
Subject: [PATCH] provide external-metrics addon
---
README.md | 1 +
...prometheus-rules-and-grafana-dashboards.md | 1 +
example.jsonnet | 1 +
...kube-prometheus-external-metrics.libsonnet | 95 +++++++++++++++++++
4 files changed, 98 insertions(+)
create mode 100644 jsonnet/kube-prometheus/kube-prometheus-external-metrics.libsonnet
diff --git a/README.md b/README.md
index 3dab9c35..fb4fae3a 100644
--- a/README.md
+++ b/README.md
@@ -208,6 +208,7 @@ local kp =
// (import 'kube-prometheus/kube-prometheus-static-etcd.libsonnet') +
// (import 'kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet') +
// (import 'kube-prometheus/kube-prometheus-custom-metrics.libsonnet') +
+ // (import 'kube-prometheus/kube-prometheus-external-metrics.libsonnet') +
{
_config+:: {
namespace: 'monitoring',
diff --git a/docs/developing-prometheus-rules-and-grafana-dashboards.md b/docs/developing-prometheus-rules-and-grafana-dashboards.md
index a0a41c5e..ee7be4e0 100644
--- a/docs/developing-prometheus-rules-and-grafana-dashboards.md
+++ b/docs/developing-prometheus-rules-and-grafana-dashboards.md
@@ -19,6 +19,7 @@ local kp =
// (import 'kube-prometheus/kube-prometheus-static-etcd.libsonnet') +
// (import 'kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet') +
// (import 'kube-prometheus/kube-prometheus-custom-metrics.libsonnet') +
+ // (import 'kube-prometheus/kube-prometheus-external-metrics.libsonnet') +
{
_config+:: {
namespace: 'monitoring',
diff --git a/example.jsonnet b/example.jsonnet
index 54de1e35..15a801f8 100644
--- a/example.jsonnet
+++ b/example.jsonnet
@@ -7,6 +7,7 @@ local kp =
// (import 'kube-prometheus/kube-prometheus-static-etcd.libsonnet') +
// (import 'kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet') +
// (import 'kube-prometheus/kube-prometheus-custom-metrics.libsonnet') +
+ // (import 'kube-prometheus/kube-prometheus-external-metrics.libsonnet') +
{
_config+:: {
namespace: 'monitoring',
diff --git a/jsonnet/kube-prometheus/kube-prometheus-external-metrics.libsonnet b/jsonnet/kube-prometheus/kube-prometheus-external-metrics.libsonnet
new file mode 100644
index 00000000..abe35b0c
--- /dev/null
+++ b/jsonnet/kube-prometheus/kube-prometheus-external-metrics.libsonnet
@@ -0,0 +1,95 @@
+// External metrics API allows the HPA v2 to scale based on metrics coming from outside of Kubernetes cluster
+// For more details on usage visit https://github.com/DirectXMan12/k8s-prometheus-adapter#quick-links
+
+{
+ _config+:: {
+ prometheusAdapter+:: {
+ namespace: $._config.namespace,
+ // Rules for external-metrics
+ config+:: {
+ externalRules+: [
+ // {
+ // seriesQuery: '{__name__=~"^.*_queue$",namespace!=""}',
+ // seriesFilters: [],
+ // resources: {
+ // overrides: {
+ // namespace: { resource: 'namespace' }
+ // },
+ // },
+ // name: { matches: '^.*_queue$', as: '$0' },
+ // metricsQuery: 'max(<<.Series>>{<<.LabelMatchers>>})',
+ // },
+ ],
+ },
+ },
+ },
+
+ prometheusAdapter+:: {
+ externalMetricsApiService: {
+ apiVersion: 'apiregistration.k8s.io/v1',
+ kind: 'APIService',
+ metadata: {
+ name: 'v1beta1.external.metrics.k8s.io',
+ },
+ spec: {
+ service: {
+ name: $.prometheusAdapter.service.metadata.name,
+ namespace: $._config.prometheusAdapter.namespace,
+ },
+ group: 'external.metrics.k8s.io',
+ version: 'v1beta1',
+ insecureSkipTLSVerify: true,
+ groupPriorityMinimum: 100,
+ versionPriority: 100,
+ },
+ },
+ externalMetricsClusterRoleServerResources: {
+ apiVersion: 'rbac.authorization.k8s.io/v1',
+ kind: 'ClusterRole',
+ metadata: {
+ name: 'external-metrics-server-resources',
+ },
+ rules: [{
+ apiGroups: ['external.metrics.k8s.io'],
+ resources: ['*'],
+ verbs: ['*'],
+ }],
+ },
+ externalMetricsClusterRoleBindingServerResources: {
+ apiVersion: 'rbac.authorization.k8s.io/v1',
+ kind: 'ClusterRoleBinding',
+ metadata: {
+ name: 'external-metrics-server-resources',
+ },
+
+ roleRef: {
+ apiGroup: 'rbac.authorization.k8s.io',
+ kind: 'ClusterRole',
+ name: 'external-metrics-server-resources',
+ },
+ subjects: [{
+ kind: 'ServiceAccount',
+ name: $.prometheusAdapter.serviceAccount.metadata.name,
+ namespace: $._config.prometheusAdapter.namespace,
+ }],
+ },
+ externalMetricsClusterRoleBindingHPA: {
+ apiVersion: 'rbac.authorization.k8s.io/v1',
+ kind: 'ClusterRoleBinding',
+ metadata: {
+ name: 'hpa-controller-external-metrics',
+ },
+
+ roleRef: {
+ apiGroup: 'rbac.authorization.k8s.io',
+ kind: 'ClusterRole',
+ name: 'external-metrics-server-resources',
+ },
+ subjects: [{
+ kind: 'ServiceAccount',
+ name: 'horizontal-pod-autoscaler',
+ namespace: 'kube-system',
+ }],
+ },
+ },
+}
--
GitLab