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klausmeyerklausmeyer
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initial version of rails-application chart
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lines changed

‎charts/rails-application/.helmignore

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

‎charts/rails-application/Chart.yaml

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apiVersion: v2
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name: rails-application
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description: Base chart for my rails applications
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type: application
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version: "0.1.0-alpha1"

‎charts/rails-application/templates/_helpers.tpl

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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "rails-application.name" -}}
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{{- default .Values.name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "rails-application.fullname" -}}
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{{- if .Values.fullnameOverride }}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- $name := default .Values.name .Values.nameOverride }}
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{{- if contains $name .Release.Name }}
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{{- .Release.Name | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "rails-application.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Common labels
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*/}}
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{{- define "rails-application.labels" -}}
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helm.sh/chart: {{ include "rails-application.chart" . }}
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{{ include "rails-application.selectorLabels" . }}
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{{- if .Values.version }}
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app.kubernetes.io/version: {{ .Values.version | quote }}
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{{- end }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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{{- end }}
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{{/*
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Selector labels
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*/}}
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{{- define "rails-application.selectorLabels" -}}
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app.kubernetes.io/name: {{ include "rails-application.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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{{- end }}
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{{/*
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Create the name of the service account to use
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*/}}
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{{- define "rails-application.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create }}
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{{- default (include "rails-application.fullname" .) .Values.serviceAccount.name }}
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{{- else }}
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{{- default "default" .Values.serviceAccount.name }}
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{{- end }}
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{{- end }}

‎charts/rails-application/templates/configmap.yaml

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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: {{ include "rails-application.fullname" . }}
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namespace: {{ .Release.Namespace }}
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labels:
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{{- include "rails-application.labels" . | nindent 4 }}
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data:
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{{- range $key, $value := .Values.environment.plain }}
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{{ $key }}: {{ $value | quote }}
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{{- end -}}

‎charts/rails-application/templates/deployment.yaml

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{{- range $deploymentName, $deploymentValues := .Values.deployments }}
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ printf "%s-%s" (include "rails-application.fullname" $) $deploymentName }}
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labels:
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{{- include "rails-application.labels" $ | nindent 4 }}
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spec:
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{{- if not $.Values.autoscaling.enabled }}
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replicas: {{ $deploymentValues.replicaCount }}
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{{- end }}
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selector:
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matchLabels:
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{{- include "rails-application.selectorLabels" $ | nindent 6 }}
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template:
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metadata:
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{{- with $.Values.podAnnotations }}
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annotations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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labels:
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"k8s.klaus-meyer.net/deployment-type": {{ $deploymentName }}
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{{- include "rails-application.labels" $ | nindent 8 }}
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{{- with $.Values.podLabels }}
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{{- toYaml . | nindent 8 }}
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{{- end }}
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spec:
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{{- with $.Values.imagePullSecrets }}
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imagePullSecrets:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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serviceAccountName: {{ include "rails-application.serviceAccountName" $ }}
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securityContext:
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{{- toYaml $.Values.podSecurityContext | nindent 8 }}
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containers:
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- name: {{ printf "%s-%s" (include "rails-application.fullname" $) $deploymentName }}
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securityContext:
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{{- toYaml $.Values.securityContext | nindent 12 }}
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image: "{{ $.Values.image.repository }}:{{ $.Values.image.tag | default $.Values.version }}"
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imagePullPolicy: {{ $.Values.image.pullPolicy }}
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args: ["{{ $deploymentName }}"]
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envFrom:
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- configMapRef:
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name: {{ include "rails-application.fullname" $ }}
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- secretRef:
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name: {{ include "rails-application.fullname" $ }}
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{{- if $deploymentValues.ports }}
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{{- with $deploymentValues.ports }}
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ports:
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{{- toYaml . | nindent 12 }}
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{{- end }}
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{{- end }}
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{{- if $deploymentValues.livenessProbe }}
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livenessProbe:
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{{- toYaml $deploymentValues.livenessProbe | nindent 12 }}
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{{- end -}}
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{{- if $deploymentValues.readinessProbe }}
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readinessProbe:
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{{- toYaml $deploymentValues.readinessProbe | nindent 12 }}
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{{ end }}
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resources:
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{{- toYaml $.Values.resources | nindent 12 }}
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{{- with $.Values.volumeMounts }}
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volumeMounts:
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{{- toYaml . | nindent 12 }}
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{{- end }}
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{{- with $.Values.volumes }}
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volumes:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with $.Values.nodeSelector }}
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nodeSelector:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with $.Values.affinity }}
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affinity:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with $.Values.tolerations }}
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tolerations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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---
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{{- end }}

‎charts/rails-application/templates/hpa.yaml

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{{- if .Values.autoscaling.enabled }}
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apiVersion: autoscaling/v2
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kind: HorizontalPodAutoscaler
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metadata:
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name: {{ include "rails-application.fullname" . }}
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labels:
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{{- include "rails-application.labels" . | nindent 4 }}
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spec:
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scaleTargetRef:
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apiVersion: apps/v1
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kind: Deployment
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name: {{ include "rails-application.fullname" . }}
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minReplicas: {{ .Values.autoscaling.minReplicas }}
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maxReplicas: {{ .Values.autoscaling.maxReplicas }}
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metrics:
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{{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
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- type: Resource
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resource:
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name: cpu
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target:
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type: Utilization
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averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
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{{- end }}
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{{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
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- type: Resource
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resource:
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name: memory
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target:
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type: Utilization
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averageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
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{{- end }}
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{{- end }}

‎charts/rails-application/templates/ingress.yaml

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{{- if .Values.ingress.enabled -}}
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{{- $fullName := include "rails-application.fullname" . -}}
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{{- $svcName := printf "%s-%s" $fullName "web" -}}
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{{- $svcPort := .Values.service.port -}}
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{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
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{{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
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{{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
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{{- end }}
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{{- end }}
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{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
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apiVersion: networking.k8s.io/v1
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{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
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apiVersion: networking.k8s.io/v1beta1
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{{- else -}}
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apiVersion: extensions/v1beta1
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{{- end }}
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kind: Ingress
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metadata:
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name: {{ $fullName }}
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labels:
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{{- include "rails-application.labels" . | nindent 4 }}
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{{- with .Values.ingress.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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spec:
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{{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
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ingressClassName: {{ .Values.ingress.className }}
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{{- end }}
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{{- if .Values.ingress.tls }}
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tls:
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{{- range .Values.ingress.tls }}
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- hosts:
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{{- range .hosts }}
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- {{ . | quote }}
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{{- end }}
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secretName: {{ .secretName }}
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{{- end }}
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{{- end }}
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rules:
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{{- range .Values.ingress.hosts }}
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- host: {{ .host | quote }}
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http:
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paths:
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{{- range .paths }}
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- path: {{ .path }}
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{{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
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pathType: {{ .pathType }}
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{{- end }}
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backend:
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{{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
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service:
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name: {{ $svcName }}
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port:
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number: {{ $svcPort }}
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{{- else }}
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serviceName: {{ $svcName }}
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servicePort: {{ $svcPort }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{- end }}

‎charts/rails-application/templates/secret.yaml

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{{ if .Values.environment.sealedSecrets }}
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apiVersion: bitnami.com/v1alpha1
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kind: SealedSecret
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metadata:
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name: {{ include "rails-application.fullname" . }}
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namespace: {{ .Release.Namespace }}
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annotations:
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sealedsecrets.bitnami.com/namespace-wide: "true"
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labels:
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{{- include "rails-application.labels" . | nindent 4 }}
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spec:
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encryptedData:
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{{- range $key, $value := .Values.environment.secret }}
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{{ $key }}: {{ $value | quote }}
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{{- end -}}
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{{ else }}
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apiVersion: v1
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kind: Secret
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metadata:
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name: {{ include "rails-application.fullname" . }}
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namespace: {{ .Release.Namespace }}
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labels:
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{{- include "rails-application.labels" . | nindent 4 }}
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type: Opaque
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data:
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{{- range $key, $value := .Values.environment.secret }}
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{{ $key }}: {{ $value | b64enc | quote }}
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{{- end -}}
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{{ end }}

‎charts/rails-application/templates/service.yaml

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apiVersion: v1
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kind: Service
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metadata:
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name: {{ include "rails-application.fullname" . }}-web
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labels:
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{{- include "rails-application.labels" . | nindent 4 }}
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spec:
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type: {{ .Values.service.type }}
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ports:
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- port: {{ .Values.service.port }}
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targetPort: http
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protocol: TCP
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name: http
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selector:
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k8s.klaus-meyer.net/deployment-type: web
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{{- include "rails-application.selectorLabels" . | nindent 4 }}

‎charts/rails-application/templates/serviceaccount.yaml

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

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