Alerting setup

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/Chart.yaml

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+apiVersion: v2
+description: Prometheus Blackbox Exporter
+name: prometheus-blackbox-exporter
+version: 8.2.0
+appVersion: v0.24.0
+home: https://github.com/prometheus/blackbox_exporter
+sources:
+  - https://github.com/prometheus/blackbox_exporter
+  - https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus-blackbox-exporter
+keywords:
+  - prometheus
+  - blackbox
+  - monitoring
+maintainers:
+  - name: padma
+    email: [email protected]
+type: application

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/README.md

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+# Prometheus Blackbox Exporter
+
+Prometheus exporter for blackbox testing
+
+Learn more: [https://github.com/prometheus/blackbox_exporter](https://github.com/prometheus/blackbox_exporter)
+
+This chart creates a Blackbox-Exporter deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.8+ with Beta APIs enabled
+- Helm >= 3.0
+
+## Get Repository Info
+
+```console
+helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
+helm repo update
+```
+
+_See [`helm repo`](https://helm.sh/docs/helm/helm_repo/) for command documentation._
+
+## Install Chart
+
+```console
+helm install [RELEASE_NAME] prometheus-community/prometheus-blackbox-exporter
+```
+
+_See [configuration](#configuration) below._
+
+_See [helm install](https://helm.sh/docs/helm/helm_install/) for command documentation._
+
+## Uninstall Chart
+
+```console
+helm uninstall [RELEASE_NAME]
+```
+
+This removes all the Kubernetes components associated with the chart and deletes the release.
+
+_See [helm uninstall](https://helm.sh/docs/helm/helm_uninstall/) for command documentation._
+
+## Upgrading Chart
+
+```console
+helm upgrade [RELEASE_NAME] [CHART] --install
+```
+
+_See [helm upgrade](https://helm.sh/docs/helm/helm_upgrade/) for command documentation._
+
+### To 8.0.0
+
+- The default image is set to `quay.io/prometheus/blackbox-exporter` instead `prom/blackbox-exporter`
+- `image.repository` is now split into `image.registry` and `image.repository`.
+  For the old behavior, set `image.registry` to an empty string and only use `image.repository`.
+
+### To 7.0.0
+
+This version introduces the `securityContext` and `podSecurityContext` and removes `allowICMP`option.
+
+All previous values are setup as default. In case that you want to enable previous functionality for `allowICMP` you need to explicit enabled with the following configuration:
+
+```yaml
+securityContext:
+  readOnlyRootFilesystem: true
+  allowPrivilegeEscalation: false
+  capabilities:
+    add: ["NET_RAW"]
+```
+
+### To 6.0.0
+
+This version introduces the relabeling field for the ServiceMonitor.
+All values in the list `additionalRelabeling` will now appear under `relabelings` instead of `metricRelabelings`.
+
+### To 5.0.0
+
+This version removes Helm 2 support. Also the ingress config has changed, so you have to adapt to the example in the values.yaml.
+
+### To 4.0.0
+
+This version create the service account by default and introduce pod security policy, it can be enabled by setting `pspEnabled: true`.
+
+### To 2.0.0
+
+This version removes the `podDisruptionBudget.enabled` parameter and changes the default value of `podDisruptionBudget` to `{}`, in order to fix Helm 3 compatibility.
+
+In order to upgrade, please remove `podDisruptionBudget.enabled` from your custom values.yaml file and set the content of `podDisruptionBudget`, for example:
+
+```yaml
+podDisruptionBudget:
+  maxUnavailable: 0
+```
+
+### To 1.0.0
+
+This version introduce the new recommended labels.
+
+In order to upgrade, delete the Deployment before upgrading:
+
+```bash
+kubectl delete deployment [RELEASE_NAME]-prometheus-blackbox-exporter
+```
+
+Note that this will cause downtime of the blackbox.
+
+## Configuration
+
+See [Customizing the Chart Before Installing](https://helm.sh/docs/intro/using_helm/#customizing-the-chart-before-installing). To see all configurable options with detailed comments, visit the chart's [values.yaml](./values.yaml), or run these configuration commands:
+
+```console
+helm show values prometheus-community/prometheus-blackbox-exporter
+```

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/ci/daemonset-values.yml

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+kind: DaemonSet

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/ci/extraenv-values.yaml

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+extraEnv:
+  HTTP_PROXY: "http://superproxy.com:3128"
+  NO_PROXY: "localhost,127.0.0.1"

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/ci/hostAliases.yml

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+hostAliases:
+  - ip: 192.168.1.1
+    hostNames:
+      - test.example.com
+      - another.example.net
+  - ip: 192.168.1.2
+    hostNames:
+      - test2.example.com
+      - another2.example.net

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/ci/ingress-values.yml

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+ingress:
+  enabled: true

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/ci/networkpolicy-values.yaml

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+networkPolicy:
+  enabled: true

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/ci/secret-values.yaml

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+secretConfig: true

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/templates/NOTES.txt

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+See https://github.com/prometheus/blackbox_exporter/ for how to configure Prometheus and the Blackbox Exporter.
+
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+
+{{- $kubeVersion := include "prometheus-blackbox-exporter.kubeVersion" . -}}
+{{ if and .Values.ingress.className (semverCompare "<=1.18-0" $kubeVersion) }}
+You've set ".Values.ingressClassName" but it's not supported by your Kubernetes version!
+Therefore the option was not added and the old ingress annotation was set.
+{{ end }}
+
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "prometheus-blackbox-exporter.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} svc -w {{ include "prometheus-blackbox-exporter.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} {{ include "prometheus-blackbox-exporter.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} -l "app.kubernetes.io/name={{ include "prometheus-blackbox-exporter.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ template "prometheus-blackbox-exporter.namespace" . }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "prometheus-blackbox-exporter.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "prometheus-blackbox-exporter.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "prometheus-blackbox-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "prometheus-blackbox-exporter.labels" -}}
+helm.sh/chart: {{ include "prometheus-blackbox-exporter.chart" . }}
+{{ include "prometheus-blackbox-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- if .Values.releaseLabel }}
+release: {{ .Release.Name }}
+{{- end }}
+{{- if .Values.commonLabels }}
+{{ toYaml .Values.commonLabels }}
+{{- end }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "prometheus-blackbox-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "prometheus-blackbox-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "prometheus-blackbox-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "prometheus-blackbox-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Return the appropriate apiVersion for rbac.
+*/}}
+{{- define "rbac.apiVersion" -}}
+{{- if .Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1" }}
+{{- print "rbac.authorization.k8s.io/v1" -}}
+{{- else -}}
+{{- print "rbac.authorization.k8s.io/v1beta1" -}}
+{{- end -}}
+{{- end -}}
+
+
+{{- define "prometheus-blackbox-exporter.namespace" -}}
+  {{- if .Values.namespaceOverride -}}
+    {{- .Values.namespaceOverride -}}
+  {{- else -}}
+    {{- .Release.Namespace -}}
+  {{- end -}}
+{{- end -}}
+
+{{/* Enable overriding Kubernetes version for some use cases */}}
+{{- define "prometheus-blackbox-exporter.kubeVersion" -}}
+  {{- default .Capabilities.KubeVersion.Version .Values.kubeVersionOverride -}}
+{{- end -}}
+
+
+{{/*
+The image to use
+*/}}
+{{- define "prometheus-blackbox-exporter.image" -}}
+{{- with (.Values.global.imageRegistry | default .Values.image.registry) -}}{{ . }}/{{- end }}
+{{- .Values.image.repository -}}:{{- .Values.image.tag | default .Chart.AppVersion -}}
+{{- with .Values.image.digest -}}@{{ .}}{{- end -}}
+{{- end -}}

deploy-as-code/helm/charts/backbone-services/prometheus-blackbox-exporter/templates/configmap.yaml

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+{{- if and .Values.config (eq .Values.configExistingSecretName "") }}
+apiVersion: v1
+kind: {{ if .Values.secretConfig -}} Secret {{- else -}} ConfigMap {{- end }}
+metadata:
+  name: {{ template "prometheus-blackbox-exporter.fullname" . }}
+
+  labels:
+    {{- include "prometheus-blackbox-exporter.labels" . | nindent 4 }}
+{{ if .Values.secretConfig -}} stringData: {{- else -}} data: {{- end }}
+  blackbox.yaml: |
+{{ toYaml .Values.config | indent 4 }}
+{{- end }}