From 3ef57636584190d89d4e1ef6ce437e119ff903c6 Mon Sep 17 00:00:00 2001
From: kireque <5346530+kireque@users.noreply.github.com>
Date: Mon, 26 Aug 2024 23:24:11 +0200
Subject: [PATCH] feat(blackbox-exporter): Deploy :rocket:

---
 .../blackbox-exporter/app/helmrelease.yaml    | 121 ++++++++++++++++++
 .../blackbox-exporter/app/kustomization.yaml  |   6 +
 .../apps/monitoring/blackbox-exporter/ks.yaml |  19 +++
 .../main/apps/monitoring/kustomization.yaml   |   1 +
 4 files changed, 147 insertions(+)
 create mode 100644 kubernetes/main/apps/monitoring/blackbox-exporter/app/helmrelease.yaml
 create mode 100644 kubernetes/main/apps/monitoring/blackbox-exporter/app/kustomization.yaml
 create mode 100644 kubernetes/main/apps/monitoring/blackbox-exporter/ks.yaml

diff --git a/kubernetes/main/apps/monitoring/blackbox-exporter/app/helmrelease.yaml b/kubernetes/main/apps/monitoring/blackbox-exporter/app/helmrelease.yaml
new file mode 100644
index 000000000..d81769489
--- /dev/null
+++ b/kubernetes/main/apps/monitoring/blackbox-exporter/app/helmrelease.yaml
@@ -0,0 +1,121 @@
+---
+# yaml-language-server: $schema=https://kubernetes-schemas.pages.dev/helm.toolkit.fluxcd.io/helmrelease_v2.json
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: blackbox-exporter
+spec:
+  interval: 30m
+  chart:
+    spec:
+      chart: prometheus-blackbox-exporter
+      version: 9.0.0
+      sourceRef:
+        kind: HelmRepository
+        name: prometheus-community
+        namespace: flux-system
+      interval: 30m
+  values:
+    fullnameOverride: blackbox-exporter
+
+    image:
+      registry: quay.io
+
+    podSecurityContext:
+      sysctls:
+        - name: net.ipv4.ping_group_range
+          value: "0 2147483647"
+
+    config:
+      modules:
+        http_2xx:
+          prober: http
+          timeout: 5s
+          http:
+            valid_http_versions: ["HTTP/1.1", "HTTP/2.0"]
+            follow_redirects: true
+            preferred_ip_protocol: "ip4"
+        icmp:
+          prober: icmp
+          timeout: 30s
+          icmp:
+            preferred_ip_protocol: "ip4"
+
+    ingress:
+      enabled: true
+      className: internal-nginx
+      annotations:
+        external-dns.alpha.kubernetes.io/target: ingress-int.econline.nl
+      hosts:
+        - host: &host "blackbox-exporter.econline.nl"
+          paths:
+            - path: /
+              pathType: Prefix
+      tls:
+        - hosts:
+            - *host
+
+    prometheusRule:
+      enabled: true
+      additionalLabels:
+        app: prometheus-operator
+        release: prometheus
+      rules:
+        - alert: BlackboxSslCertificateWillExpireSoon
+          expr: probe_ssl_earliest_cert_expiry - time() < 86400 * 3
+          for: 15m
+          labels:
+            severity: critical
+          annotations:
+            summary: |-
+              The SSL certificate for {{ $labels.target }} will expire in less than 3 days
+        - alert: BlackboxSslCertificateExpired
+          expr: probe_ssl_earliest_cert_expiry - time() <= 0
+          for: 15m
+          labels:
+            severity: critical
+          annotations:
+            summary: |-
+              The SSL certificate for {{ $labels.target }} has expired
+        - alert: BlackboxProbeFailed
+          expr: probe_success == 0
+          for: 15m
+          labels:
+            severity: critical
+          annotations:
+            summary: |-
+              The host {{ $labels.instance }} is currently unreachable
+
+    pspEnabled: false
+
+    securityContext:
+      readOnlyRootFilesystem: true
+      allowPrivilegeEscalation: false
+      capabilities:
+        add: ["NET_RAW"]
+
+    serviceMonitor:
+      enabled: true
+      defaults:
+        labels:
+          release: prometheus
+        interval: 1m
+        scrapeTimeout: 30s
+      targets:
+        # Robot vacuums
+        # - module: icmp
+        #   name: valetudo-living-room-icmp
+        #   url: livingroom-vacuum.home.econline.nl
+        # - module: http_2xx
+        #   name: valetudo-living-room-http
+        #   url: "http://livingroom-vacuum.home.econline.nl"
+
+        # Other devices
+        - module: icmp
+          name: zigbee-controller-icmp
+          url: office-zigbee-adapter.home.econline.nl
+
+        - module: icmp
+          name: ping-cloudflare
+          url: 1.1.1.1
+          scrape_interval: 30s
\ No newline at end of file
diff --git a/kubernetes/main/apps/monitoring/blackbox-exporter/app/kustomization.yaml b/kubernetes/main/apps/monitoring/blackbox-exporter/app/kustomization.yaml
new file mode 100644
index 000000000..17cbc72b2
--- /dev/null
+++ b/kubernetes/main/apps/monitoring/blackbox-exporter/app/kustomization.yaml
@@ -0,0 +1,6 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/kustomization
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ./helmrelease.yaml
diff --git a/kubernetes/main/apps/monitoring/blackbox-exporter/ks.yaml b/kubernetes/main/apps/monitoring/blackbox-exporter/ks.yaml
new file mode 100644
index 000000000..bc31b3250
--- /dev/null
+++ b/kubernetes/main/apps/monitoring/blackbox-exporter/ks.yaml
@@ -0,0 +1,19 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fluxcd-community/flux2-schemas/main/kustomization-kustomize-v1.json
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: &appname blackbox-exporter
+  namespace: flux-system
+spec:
+  targetNamespace: monitoring
+  commonMetadata:
+    labels:
+      app.kubernetes.io/name: *appname
+  interval: 10m
+  path: "./kubernetes/main/apps/monitoring/blackbox-exporter/app"
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: home-ops-kubernetes
+  wait: false
diff --git a/kubernetes/main/apps/monitoring/kustomization.yaml b/kubernetes/main/apps/monitoring/kustomization.yaml
index 31bde4103..fdee66813 100644
--- a/kubernetes/main/apps/monitoring/kustomization.yaml
+++ b/kubernetes/main/apps/monitoring/kustomization.yaml
@@ -6,6 +6,7 @@ resources:
   - ./namespace.yaml
   # Flux-Kustomizations
   - ./alertmanager/ks.yaml
+  - ./blackbox-exporter/ks.yaml
   - ./fluent-bit/ks.yaml
   - ./grafana/ks.yaml
   - ./kromgo/ks.yaml