101 lines
2.5 KiB
Go
101 lines
2.5 KiB
Go
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package monitoring
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import (
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"encoding/json"
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"time"
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"danicos.dev/daniel/go-kube/pkg/kube"
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"danicos.dev/daniel/go-kube/pkg/stack"
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"danicos.dev/daniel/homelab/pkg/root"
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helm "github.com/fluxcd/helm-controller/api/v2"
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"github.com/fluxcd/pkg/apis/kustomize"
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source "github.com/fluxcd/source-controller/api/v1"
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apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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var meta kube.Metadata
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var Namespace = kube.Namespace(root.Monitoring)
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func init() {
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meta = kube.NewMetadata(root.Monitoring, Namespace)
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}
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func Controllers() stack.Stack {
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s := stack.NewStack("controllers", map[string]any{
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"namespace": Namespace,
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"kube-prometheus-stack": PrometheusHelmSource(),
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"release": PrometheusRelease(),
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})
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return s
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}
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func PrometheusHelmSource() source.HelmRepository {
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spec := source.HelmRepositorySpec{
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Interval: durHour(root.FLUX_HELM_MONITORING_INTERVAL),
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URL: root.HELM_PROMETHEUS_URL,
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}
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return kube.NewFluxHelmRepositorySource(meta, spec)
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}
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func PrometheusRelease() helm.HelmRelease {
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type Grafana struct {
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AdminPassword string `json:"adminPassword"`
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}
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type Values struct {
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Grafana Grafana `json:"grafana"`
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}
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values := Values{
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Grafana: Grafana{
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// Note this password is safe because Grafana is only exposed via VPN
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AdminPassword: "grafana-admin",
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},
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}
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raw, err := json.Marshal(values)
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if err != nil {
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panic(err)
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}
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interval := durHour(12)
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spec := helm.HelmReleaseSpec{
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Interval: durMin(30),
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Chart: &helm.HelmChartTemplate{
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Spec: helm.HelmChartTemplateSpec{
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Chart: root.HELM_PROMETHEUS_CHART,
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Version: root.HELM_PROMETHEUS_CHART_VERSION,
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Interval: &interval,
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SourceRef: helm.CrossNamespaceObjectReference{
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Kind: kube.FluxHelmReleaseMeta.Kind,
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Name: meta.Meta().Name,
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Namespace: Namespace.Name,
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},
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},
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},
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Install: &helm.Install{
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CRDs: helm.Create,
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},
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Upgrade: &helm.Upgrade{
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CRDs: helm.CreateReplace,
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},
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DriftDetection: &helm.DriftDetection{
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Mode: helm.DriftDetectionEnabled,
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Ignore: []helm.IgnoreRule{{
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Paths: []string{"/metadata/annotations/prometheus-operator-validated"},
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Target: &kustomize.Selector{
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Kind: "PrometheusRule",
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},
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}},
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},
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Values: &apiextensionsv1.JSON{Raw: raw},
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}
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return kube.NewFluxHelmRelease(meta, spec)
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}
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func durHour(d int64) metav1.Duration {
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return metav1.Duration{Duration: (time.Duration(d) * time.Hour)}
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}
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func durMin(d int64) metav1.Duration {
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return metav1.Duration{Duration: (time.Duration(d) * time.Minute)}
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}
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