free · patrickdomnick · Aug 4, 2020
diff --git a/helm/.helmignore b/helm/.helmignore
@@ -0,0 +1,26 @@
+# 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/
+# Gitlab CI
+.gitlab-ci.yml
+examples/
diff --git a/helm/Chart.yaml b/helm/Chart.yaml
@@ -0,0 +1,17 @@
+apiVersion: v2
+name: sql-exporter
+description: A Helm chart for SQL Metrics
+type: application
+version: 1.0.0
+appVersion: 1.0.0
+keywords:
+  - exporter
+  - servicemonitor
+  - sql
+  - metrics
+home: https://github.com/free/sql_exporter
+sources:
+  - https://github.com/free/sql_exporter
+maintainers:
+- name: Patrick Domnick
+  email: patrickfdomnick@gmail.com
diff --git a/helm/README.md b/helm/README.md
@@ -0,0 +1,59 @@
+# sql-exporter
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.0.0](https://img.shields.io/badge/AppVersion-1.0.0-informational?style=flat-square)
+
+A Helm chart for SQL Metrics
+
+**Homepage:** <https://github.com/free/sql_exporter>
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| Patrick Domnick | patrickfdomnick@gmail.com |  |
+
+## Source Code
+
+* <https://github.com/free/sql_exporter>
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| affinity | object | `{}` |  |
+| database.database | string | `""` |  |
+| database.host | string | `""` |  |
+| database.metrics | list | `[]` |  |
+| database.password | string | `""` |  |
+| database.port | string | `""` |  |
+| database.protocol | string | `"mysql"` |  |
+| database.user | string | `""` |  |
+| deployment.port | int | `9399` |  |
+| fullnameOverride | string | `""` |  |
+| image.pullPolicy | string | `"IfNotPresent"` |  |
+| image.repository | string | `"githubfree/sql_exporter"` |  |
+| image.tag | float | `0.5` |  |
+| imagePullSecrets | object | `{}` |  |
+| livenessProbe.failureThreshold | int | `6` |  |
+| livenessProbe.initialDelaySeconds | int | `30` |  |
+| livenessProbe.tcpSocket.port | string | `"http"` |  |
+| livenessProbe.timeoutSeconds | int | `5` |  |
+| nameOverride | string | `""` |  |
+| nodeSelector | object | `{}` |  |
+| podSecurityContext | object | `{}` |  |
+| readinessProbe.initialDelaySeconds | int | `5` |  |
+| readinessProbe.periodSeconds | int | `5` |  |
+| readinessProbe.tcpSocket.port | string | `"http"` |  |
+| readinessProbe.timeoutSeconds | int | `3` |  |
+| replicaCount | int | `1` |  |
+| resources.limits | object | `{}` |  |
+| securityContext | object | `{}` |  |
+| service.port | int | `9399` |  |
+| service.type | string | `"ClusterIP"` |  |
+| serviceMonitor.alerts.enabled | bool | `false` |  |
+| serviceMonitor.alerts.rules | list | `[]` |  |
+| serviceMonitor.enabled | bool | `false` |  |
+| serviceMonitor.namespace | string | `"monitoring"` |  |
+| serviceMonitor.path | string | `"/metrics"` |  |
+| serviceMonitor.selector | object | `{}` |  |
+| tolerations | list | `[]` |  |
diff --git a/helm/templates/_helpers.tpl b/helm/templates/_helpers.tpl
@@ -0,0 +1,98 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "sql-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 "sql-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 "sql-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "sql-exporter.labels" -}}
+helm.sh/chart: {{ include "sql-exporter.chart" . }}
+{{ include "sql-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "sql-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "sql-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the sql_export.yml file
+*/}}
+{{- define "sql-exporter.expoter" -}}
+{{- print "" -}}
+{{- print "global:" | nindent 4 -}}
+{{- print "scrape_timeout_offset: 500ms" | nindent 6 -}}
+{{- print "min_interval: 0s" | nindent 6 -}}
+{{- print "max_connections: 3" | nindent 6 -}}
+{{- print "max_idle_connections: 3" | nindent 6 -}}
+{{- print "target:" | nindent 4 -}}
+{{- if eq .Values.database.protocol "mysql" -}}
+{{- printf "data_source_name: %s://%s:%s@(%s:%s)/%s" .Values.database.protocol .Values.database.user .Values.database.password .Values.database.host .Values.database.port .Values.database.database | nindent 6 -}}
+{{- end -}}
+{{- if or (eq .Values.database.protocol "postgres") (eq .Values.database.protocol "sqlserver") -}}
+{{- printf "data_source_name: %s://%s:%s@%s:%s/%s" .Values.database.protocol .Values.database.user .Values.database.password .Values.database.host .Values.database.port .Values.database.database | nindent 6 -}}
+{{- end -}}
+{{- if eq .Values.database.protocol "clickhouse" -}}
+{{- printf "data_source_name: %s://%s:%s?username=%s&password=%s&dbname=%s" .Values.database.protocol .Values.database.host .Values.database.port .Values.database.user .Values.database.password  .Values.database.database | nindent 6 -}}
+{{- end -}}
+{{- print "collectors: [sql_standard]" | nindent 6 -}}
+{{- print "collector_files:" | nindent 4 -}}
+{{- print "- /bin/config/standard.collector.yml" | nindent 6 -}}
+{{- end -}}
+
+{{/*
+Create the standard.collector.yml file
+*/}}
+{{- define "sql-exporter.collector" -}}
+{{- print "" -}}
+{{- print "collector_name: sql_standard" | nindent 4 -}}
+{{- print "metrics: " | nindent 4 -}}
+{{ .Values.database.metrics | toYaml | nindent 6}}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "sql-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "sql-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
diff --git a/helm/templates/alert.yaml b/helm/templates/alert.yaml
@@ -0,0 +1,25 @@
+{{- if .Values.serviceMonitor.enabled }}
+{{- if .Values.serviceMonitor.alerts.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  name: {{ template "sql-exporter.fullname" . }}
+  {{- if .Values.serviceMonitor.namespace }}
+  namespace: {{ .Values.serviceMonitor.namespace }}
+  {{- else }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+  labels:
+    app: {{ include "sql-exporter.fullname" . }}
+    chart: {{ template "sql-exporter.chart" . }}
+    release: {{ .Release.Name | quote }}
+    heritage: {{ .Release.Service | quote }}  
+    {{- range $key, $value := .Values.serviceMonitor.selector }}
+    {{ $key }}: {{ $value | quote }}
+    {{- end }}
+spec:
+  groups:
+  - name: {{ include "sql-exporter.fullname" . }}
+    rules: {{- toYaml .Values.serviceMonitor.alerts.rules | nindent 6 }}
+{{- end }}
+{{- end }}
diff --git a/helm/templates/configmap.yaml b/helm/templates/configmap.yaml
@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "sql-exporter.fullname" . }}
+  labels:
+    app: {{ include "sql-exporter.fullname" . }}
+    chart: {{ template "sql-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+    {{- include "sql-exporter.labels" . | nindent 4 }}
+data:
+  standard.collector.yml: |-
+    {{- include "sql-exporter.collector" . }} 
diff --git a/helm/templates/deployment.yaml b/helm/templates/deployment.yaml
@@ -0,0 +1,76 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "sql-exporter.fullname" . }}
+  labels:
+    app: {{ include "sql-exporter.fullname" . }}
+    chart: {{ template "sql-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+    {{- include "sql-exporter.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "sql-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        rollme: {{ randAlphaNum 5 | quote }}
+      labels:
+        app: {{ include "sql-exporter.fullname" . }}
+        chart: {{ template "sql-exporter.chart" . }}
+        release: {{ .Release.Name }}
+        {{- include "sql-exporter.selectorLabels" . | nindent 8 }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      volumes:
+        - name: sql-exporter
+          secret:
+            secretName: {{ include "sql-exporter.fullname" . }}
+        - name: sql-collector
+          configMap:
+            name: {{ include "sql-exporter.fullname" . }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args: ["-config.file=/bin/target/sql_exporter.yml"]
+          volumeMounts:
+          - name: sql-exporter
+            readOnly: true
+            mountPath: "/bin/target"
+          - name: sql-collector
+            readOnly: true
+            mountPath: "/bin/config"
+          {{- if .Values.livenessProbe }}
+          livenessProbe: {{- toYaml .Values.livenessProbe | nindent 12 }}
+          {{- end }}
+          {{- if .Values.readinessProbe }}
+          readinessProbe: {{- toYaml .Values.readinessProbe | nindent 12 }}
+          {{- end }}
+          ports:
+            - name: http
+              containerPort: {{ .Values.deployment.port }}
+              protocol: TCP
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
diff --git a/helm/templates/secrets.yaml b/helm/templates/secrets.yaml
@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "sql-exporter.fullname" . }}
+  labels:
+    app: {{ include "sql-exporter.fullname" . }}
+    chart: {{ template "sql-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+    {{- include "sql-exporter.labels" . | nindent 4 }}
+type: Opaque
+stringData:
+  sql_exporter.yml: |-
+    {{- include "sql-exporter.expoter" . }} 
diff --git a/helm/templates/service.yaml b/helm/templates/service.yaml
@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "sql-exporter.fullname" . }}
+  labels:
+    {{- include "sql-exporter.labels" . | nindent 4 }}
+    app: {{ include "sql-exporter.fullname" . }}
+    chart: {{ template "sql-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "sql-exporter.selectorLabels" . | nindent 4 }}
+    app: {{ include "sql-exporter.fullname" . }}
diff --git a/helm/templates/servicemonitor.yaml b/helm/templates/servicemonitor.yaml
@@ -0,0 +1,38 @@
+{{- if .Values.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "sql-exporter.fullname" . }}
+  {{- if .Values.serviceMonitor.namespace }}
+  namespace: {{ .Values.serviceMonitor.namespace }}
+  {{- else }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+  labels:
+    app: {{ include "sql-exporter.fullname" . }}
+    chart: {{ template "sql-exporter.chart" . }}
+    release: {{ .Release.Name | quote }}
+    heritage: {{ .Release.Service | quote }}  
+    {{- range $key, $value := .Values.serviceMonitor.selector }}
+    {{ $key }}: {{ $value | quote }}
+    {{- end }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ include "sql-exporter.fullname" . }}
+      release: {{ .Release.Name | quote }}
+  endpoints:
+  - port: http
+    {{- if .Values.serviceMonitor.path }}
+    path: {{ .Values.serviceMonitor.path }}
+    {{- end }}
+    {{- if .Values.serviceMonitor.interval }}
+    interval: {{ .Values.serviceMonitor.interval }}
+    {{- end }}
+    {{- if .Values.serviceMonitor.scrapeTimeout }}
+    scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
+    {{- end }}
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+{{- end }}