From 3b06277ff73a4130cb3a725eab94b292a4f9fca9 Mon Sep 17 00:00:00 2001
From: Patrick Spek <p.spek@tyil.nl>
Date: Wed, 2 Aug 2023 15:44:16 +0200
Subject: Add Prometheus

---
 .../prometheus-exporter-postgresql/helm-chart.yaml | 16 +++++++++
 .../oolah/monitoring/prometheus/helm-chart.yaml    | 40 ++++++++++++++++++++++
 .../prometheus/persistent-volume-claim.yaml        | 14 ++++++++
 .../monitoring/prometheus/persistent-volume.yaml   | 21 ++++++++++++
 4 files changed, 91 insertions(+)
 create mode 100644 data.d/k3s-master/manifests.d/oolah/monitoring/prometheus-exporter-postgresql/helm-chart.yaml
 create mode 100644 data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/helm-chart.yaml
 create mode 100644 data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume-claim.yaml
 create mode 100644 data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume.yaml

diff --git a/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus-exporter-postgresql/helm-chart.yaml b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus-exporter-postgresql/helm-chart.yaml
new file mode 100644
index 0000000..3222a7e
--- /dev/null
+++ b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus-exporter-postgresql/helm-chart.yaml
@@ -0,0 +1,16 @@
+---
+apiVersion: helm.cattle.io/v1
+kind: HelmChart
+metadata:
+  name: prometheus-exporter-postgresql
+  namespace: kube-system
+spec:
+  repo: https://prometheus-community.github.io/helm-charts
+  chart: prometheus-postgres-exporter
+  targetNamespace: monitoring
+  valuesContent: |-
+    config:
+      datasourceSecret:
+        name: prometheus-exporter-postgresql
+        key: connection-string
+...
diff --git a/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/helm-chart.yaml b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/helm-chart.yaml
new file mode 100644
index 0000000..f32479b
--- /dev/null
+++ b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/helm-chart.yaml
@@ -0,0 +1,40 @@
+---
+apiVersion: helm.cattle.io/v1
+kind: HelmChart
+metadata:
+  name: prometheus
+  namespace: kube-system
+spec:
+  repo: "https://prometheus-community.github.io/helm-charts"
+  chart: "prometheus"
+  targetNamespace: "monitoring"
+  valuesContent: |-
+    server:
+      baseURL: "https://prometheus.tyil.nl"
+      global:
+        scrape_interval: "1m"
+        scrape_timeout: "10s"
+        evaluation_interval: "1m"
+      ingress:
+        enabled: true
+        ingressClassName: "traefik"
+        annotations:
+          cert-manager.io/cluster-issuer: "letsencrypt-production"
+        tls:
+        - hosts:
+          - "prometheus.tyil.nl"
+          secretName: "tls-nl.tyil.prometheus"
+        hosts:
+        - "prometheus.tyil.nl"
+      persistentVolume:
+        enabled: true
+        existingClaim: "prometheus"
+      prometheus.yml:
+        scrape_configs:
+        - job_name: exporter-postgresql
+          static_configs:
+          - targets:
+            - "prometheus-exporter-postgresql-prometheus-postgres-exporter:80"
+    alertmanager:
+      enabled: false
+...
diff --git a/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume-claim.yaml b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume-claim.yaml
new file mode 100644
index 0000000..9ecd180
--- /dev/null
+++ b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume-claim.yaml
@@ -0,0 +1,14 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: prometheus
+  namespace: monitoring
+spec:
+  storageClassName: nfs
+  accessModes:
+  - ReadWriteMany
+  resources:
+    requests:
+      storage: 10Gi
+...
diff --git a/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume.yaml b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume.yaml
new file mode 100644
index 0000000..fb53928
--- /dev/null
+++ b/data.d/k3s-master/manifests.d/oolah/monitoring/prometheus/persistent-volume.yaml
@@ -0,0 +1,21 @@
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: prometheus
+  namespace: monitoring
+spec:
+  capacity:
+    storage: 10Gi
+  volumeMode: Filesystem
+  accessModes:
+  - ReadWriteMany
+  persistentVolumeReclaimPolicy: Recycle
+  storageClassName: nfs
+  mountOptions:
+  - hard
+  - nfsvers=4.1
+  nfs:
+    path: /var/lib/prometheus
+    server: 10.57.101.20
+...
-- 
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