[prometheus-sql-exporter] Initial release (#4525)

* [prometheus-sql-exporter] Initial release

Signed-off-by: Wilfried Roset <[email protected]>

* [prometheus-sql-exporter] Followup nits after review

Signed-off-by: Wilfried Roset <[email protected]>

* [prometheus-sql-exporter] Update CODEOWNERS

Signed-off-by: Wilfried Roset <[email protected]>

---------

Signed-off-by: Wilfried Roset <[email protected]>

.github/CODEOWNERS

@@ -47,6 +47,7 @@
 /charts/prometheus-redis-exporter/ @acondrat @zanhsieh
 /charts/prometheus-smartctl-exporter/ @kfox1111 @zeritti
 /charts/prometheus-snmp-exporter/ @miouge1 @walker-tom @xiu
+/charts/prometheus-sql-exporter/ @wilfriedroset
 /charts/prometheus-stackdriver-exporter/ @apenney @rpahli
 /charts/prometheus-statsd-exporter/ @scDisorder
 /charts/prometheus-systemd-exporter/ @capuche2412 @maxime1907

charts/prometheus-sql-exporter/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/prometheus-sql-exporter/Chart.yaml

@@ -0,0 +1,16 @@
+apiVersion: v2
+description: Prometheus SQL Exporter
+name: prometheus-sql-exporter
+version: 0.1.0
+appVersion: v0.5.4
+home: https://github.com/justwatchcom/sql_exporter
+sources:
+  - https://github.com/justwatchcom/sql_exporter
+  - https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus-sql-exporter
+keywords:
+  - prometheus
+  - sql
+  - monitoring
+maintainers:
+  - name: wilfriedroset
+type: application

charts/prometheus-sql-exporter/README.md

@@ -0,0 +1,57 @@
+# Prometheus SQL Exporter
+
+Prometheus exporter for SQL testing
+
+Learn more: [https://github.com/justwatchcom/sql_exporter](https://github.com/justwatchcom/sql_exporter)
+
+This chart creates a SQL-Exporter deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.27+
+- 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-sql-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._
+
+## 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-sql-exporter
+```

charts/prometheus-sql-exporter/templates/NOTES.txt

@@ -0,0 +1,15 @@
+1. Get the application URL by running these commands:
+{{- if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "prometheus-sql-exporter.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.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 svc -w {{ template "prometheus-sql-exporter.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "prometheus-sql-exporter.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "prometheus-sql-exporter.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:9187
+{{- end }}