add helm chart

charts/easee-exporter/.helmignore

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+# 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/easee-exporter/Chart.yaml

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+apiVersion: v2
+name: easee-exporter
+version: 0.1.0
+description: Easee prometheus exporter
+type: application
+keywords:
+  - easee
+  - prometheus
+  - grafana
+  - monitoring
+home: https://github.com/terjesannum/easee-exporter
+maintainers:
+  - name: Terje Sannum
+    email: terje@offpiste.org
+    url: https://github.com/terjesannum
+annotations:
+  artifacthub.io/images: |
+    - name: easee-exporter
+      image: ghcr.io/terjesannum/easee-exporter:latest
+      platforms:
+        - linux/amd64
+        - linux/arm64
+        - linux/arm/v7
+  artifacthub.io/screenshots: |
+    - title: Grafana dashboard
+      url: https://raw.githubusercontent.com/terjesannum/easee-exporter/master/grafana/dashboard.png

charts/easee-exporter/LICENSE

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+MIT License
+
+Copyright (c) 2022 Terje Sannum
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

charts/easee-exporter/README.md

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+# Easee prometheus exporter
+
+Monitor your Easee EV charger with Prometheus and Grafana.
+
+![Grafana dashboard](https://raw.githubusercontent.com/terjesannum/easee-exporter/master/grafana/dashboard.png)
+
+See [https://github.com/terjesannum/easee-exporter](https://github.com/terjesannum/easee-exporter) for more information.

charts/easee-exporter/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "easee-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 "easee-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 "easee-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "easee-exporter.labels" -}}
+helm.sh/chart: {{ include "easee-exporter.chart" . }}
+{{ include "easee-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "easee-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "easee-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

charts/easee-exporter/templates/secret.yaml

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+apiVersion: v1
+kind: Secret
+type: kubernetes.io/Opaque
+metadata:
+  name: {{ include "easee-exporter.fullname" . }}
+  labels:
+    {{- include "easee-exporter.labels" . | nindent 4 }}
+stringData:
+  username: '{{ required "Easee username is required" .Values.username }}'
+  password: '{{ required "Easee password is required" .Values.password }}'

charts/easee-exporter/templates/service.yaml

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+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "easee-exporter.fullname" . }}
+  labels:
+    {{- include "easee-exporter.labels" . | nindent 4 }}
+spec:
+  type: ClusterIP
+  clusterIP: None
+  selector:
+    {{- include "easee-exporter.selectorLabels" . | nindent 4 }}
+  ports:
+  - name: http
+    protocol: TCP
+    port: 80
+    targetPort: http

charts/easee-exporter/templates/servicemonitor.yaml

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+{{- if .Values.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "easee-exporter.fullname" . }}
+  labels:
+    {{- include "easee-exporter.labels" . | nindent 4 }}
+    {{- if .Values.serviceMonitor.labels }}
+    {{- toYaml .Values.serviceMonitor.labels | nindent 4 }}
+    {{- end }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "easee-exporter.selectorLabels" . | nindent 6 }}
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+  endpoints:
+    - path: /metrics
+      port: http
+      {{- if .Values.serviceMonitor.interval }}
+      interval: {{ .Values.serviceMonitor.interval }}
+      {{- end }}
+      {{- if .Values.serviceMonitor.scrapeTimeout }}
+      scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
+      {{- end }}
+{{- end }}

charts/easee-exporter/templates/statefulset.yaml

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+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "easee-exporter.fullname" . }}
+  labels:
+    {{- include "easee-exporter.labels" . | nindent 4 }}
+spec:
+  serviceName: {{ include "easee-exporter.fullname" . }}
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "easee-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        {{- if not .Values.serviceMonitor.enabled }}
+        prometheus.io/scrape: 'true'
+        {{- end }}
+        {{- if .Values.podAnnotations }}
+        {{- toYaml .Values.podAnnotations | nindent 8 }}
+        {{- end }}
+      labels:
+        {{- include "easee-exporter.selectorLabels" . | nindent 8 }}
+    spec:
+      restartPolicy: Always
+      containers:
+        - name: easee-exporter
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.Version }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          env:
+            - name: EASEE_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: "{{ include "easee-exporter.fullname" . }}"
+                  key: username
+            - name: EASEE_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: "{{ include "easee-exporter.fullname" . }}"
+                  key: password
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}

charts/easee-exporter/values.yaml

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+username: ""
+password: ""
+
+serviceMonitor:
+  enabled: false
+  labels: {}
+  interval: 1m
+  scrapeTimeout: 10s
+
+image:
+  repository: ghcr.io/terjesannum/easee-exporter
+  # Override image tag (default is chart version)
+  tag: ""
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""
+
+podAnnotations: {}
+
+securityContext:
+  capabilities:
+    drop:
+      - ALL
+  readOnlyRootFilesystem: true
+  runAsNonRoot: true
+  runAsUser: 65532
+  allowPrivilegeEscalation: false
+
+resources: {}
+  # limits:
+  #   cpu: 20m
+  #   memory: 32Mi
+  # requests:
+  #   cpu: 10m
+  #   memory: 32Mi