Create helm chart

templates/NOTES.txt

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+Your Duino-Coin miner DaemonSet has been successfully deployed!
+
+Since the miner does not expose any HTTP service, there is no application URL.
+
+To check that it is running on all nodes, use:
+
+  kubectl get daemonset -n {{ .Release.Namespace }} {{ include "duino-miner.fullname" . }}
+
+To view logs from one of the miner pods:
+
+  kubectl logs -n {{ .Release.Namespace }} -l app.kubernetes.io/name={{ include "duino-miner.name" . }} --tail=50 -f
+
+To see which nodes are running the miner:
+
+  kubectl get pods -n {{ .Release.Namespace }} -o wide -l app.kubernetes.io/name={{ include "duino-miner.name" . }}
+
+Happy mining!

templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "duino-miner.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 "duino-miner.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 "duino-miner.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "duino-miner.labels" -}}
+helm.sh/chart: {{ include "duino-miner.chart" . }}
+{{ include "duino-miner.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "duino-miner.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "duino-miner.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "duino-miner.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "duino-miner.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

templates/daemonset.yaml

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+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: {{ include "duino-miner.fullname" . }}
+  labels:
+    {{- include "duino-miner.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "duino-miner.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "duino-miner.labels" . | nindent 8 }}
+        {{- with .Values.podLabels }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      priorityClassName: {{ .Values.priorityClassName | quote }}
+      serviceAccountName: {{ include "duino-miner.serviceAccountName" . }}
+      {{- with .Values.podSecurityContext }}
+      securityContext:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          {{- with .Values.securityContext }}
+          securityContext:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+            {{- range $key, $value := .Values.env }}
+            - name: {{ $key }}
+              value: {{ $value | quote }}
+            {{- end }}
+          {{- with .Values.livenessProbe }}
+          livenessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.readinessProbe }}
+          readinessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.volumeMounts }}
+          volumeMounts:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+      {{- with .Values.volumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

templates/priorityclass.yaml

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+apiVersion: scheduling.k8s.io/v1
+kind: PriorityClass
+metadata:
+  name: {{ .Values.priorityClassName | quote }}
+value: 1
+globalDefault: false
+description: "Absolute lowest priority for duino-miner pods"

templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "duino-miner.serviceAccountName" . }}
+  labels:
+    {{- include "duino-miner.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}