Merge pull request #13 from devopshobbies/refactor/chart

refactor: refactored everything in this chart

Chart.yaml

@@ -1,24 +1,24 @@
 apiVersion: v2
-name: helm-template
-description: A Helm chart for Kubernetes
+name: helm-generic
+description: Generic helm chart for all kind of applications
 
-# A chart can be either an 'application' or a 'library' chart.
-#
-# Application charts are a collection of templates that can be packaged into versioned archives
-# to be deployed.
-#
-# Library charts provide useful utilities or functions for the chart developer. They're included as
-# a dependency of application charts to inject those utilities and functions into the rendering
-# pipeline. Library charts do not define any templates and therefore cannot be deployed.
 type: application
+version: 0.1.1
 
-# This is the chart version. This version number should be incremented each time you make changes
-# to the chart and its templates, including the app version.
-# Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: "0.1.0"
+keywords:
+  - java
+  - node
+  - dotnet
+  - kubernetes
+  - stakater
+  - application
 
-# This is the version number of the application being deployed. This version number should be
-# incremented each time you make changes to the application. Versions are not expected to
-# follow Semantic Versioning. They should reflect the version the application is using.
-# It is recommended to use it with quotes.
-appVersion: "1.16.0"
+home: https://github.com/stakater/application
+maintainers:
+  - name: Ahmad Ali Bagheri
+    email: [email protected]
+
+  - name: Mehdi Rahimi
+    email: [email protected]
+
+icon: https://github.com/stakater/ForecastleIcons/blob/master/stakater.png

README.md

@@ -5,7 +5,7 @@ This chart is created to be used inside devopshobbies & kaiser-io devops operati
 
 ## How it works:
 
-The use-case is pretty simple and you can start using this by fetching the chart. Also, there is one `values`.example.yaml` defined for you which you can check and have a look at to find out how to set the variables.
+The use-case is pretty simple and you can start using this by fetching the chart. Also, there is one `values.example.yaml` defined for you which you can check and have a look at to find out how to set the variables.
 
 ## How release and versioning work:
 

templates/_helpers.tpl

@@ -1,188 +1,62 @@
-{{/*
-Expand the name of the chart.
-*/}}
-{{- define "helm-template.name" -}}
-{{- default .Chart.Name .Values.name | 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 "helm-template.fullname" -}}
-{{- if .Values.fullnameOverride }}
-{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
-{{- else }}
-{{- $name := default .Chart.Name .Values.name }}
-{{- if contains $name .Release.Name }}
-{{- .Release.Name | trunc 63 | trimSuffix "-" }}
-{{- else }}
-{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
-{{- end }}
-{{- end }}
-{{- end }}
-
-
-{{- define "helm-template.namespace" -}}
-{{- default  .Values.namespace | trunc 63 | trimSuffix "-" }}
-{{- end }}
-
-{{/* 
-Create chart name and version as used by the chart label.
-*/}}
-{{- define "helm-template.chart" -}}
-{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
-{{- end }}
+{{/* vim: set filetype=mustache: */}}
 
 {{/*
-Common labels
+Define the name of the chart/application.
 */}}
-{{- define "helm-template.labels" -}}
-helm.sh/chart: {{ include "helm-template.chart" . }}
-{{ include "helm-template.selectorLabels" . }}
-{{- $labellist := list  -}}
-{{- range $key  :=  .Values.Affinity }}
-{{- range $value  :=  $key.values }}
-{{- $label := cat  $key.key ":" $value  -}}
-{{- if not (has $label  $labellist) }}
-{{ $key.key }}: {{ $value }}
-{{- end }}
-{{- $labellist = append $labellist $label  -}}
-{{- end }}
-{{- end }}
-
-app.kubernetes.io/managed-by: {{ .Release.Service }}
-{{- end }}
+{{- define "application.name" -}}
+{{- default .Chart.Name .Values.applicationName | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
 
 {{/*
-Selector labels
+Define the name of the chart/application.
 */}}
-
-{{- define "helm-template.selectorLabels" -}}
-app: {{ include "helm-template.name" . }}
-{{- end }}
+{{- define "application.version" -}}
+  {{- $version := default "" .Values.deployment.image.tag -}}
+  {{- regexReplaceAll "[^a-zA-Z0-9_\\.\\-]" $version "-" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
 
 {{/*
-Pars Affinity
+Renders a value that contains template.
+Usage:
+{{ include "application.tplvalues.render" ( dict "value" .Values.path.to.the.Value "context" $) }}
 */}}
-{{- define "helm-template.affinity" -}}
-{{- range $typelist := (list "nodeAffinity" "nodeAntiAffinity" "podAntiAffinity" "podAffinity") -}}
-{{- $afflag := list 1 -}}
-{{- range $rulelist := (list "required" "preferred") -}}
-{{- range $Affinities := $.Values.Affinity -}}
-{{- if  eq $typelist $Affinities.type -}}
-{{- if not (has $typelist $afflag ) -}}
-{{- $typelist | nindent 0 -}}:
-{{- $afflag = append $afflag $Affinities.type  -}}
-{{- end -}}
-{{- if eq $rulelist $Affinities.rule -}}
-{{- if and (not (has $Affinities.rule  $afflag)) (eq $Affinities.rule "required")   }}
-  requiredDuringSchedulingIgnoredDuringExecution:
-  {{- if contains "node" $Affinities.type }}
-    nodeSelectorTerms:
-      - matchExpressions: 
-  {{- else if contains "pod" $Affinities.type }}
-    - labelSelector:
-        matchExpressions:
- {{- end }}
- {{- $afflag = append $afflag  $Affinities.rule  -}}
- {{- end }}
- {{- if eq $Affinities.rule "required" }}
-        - key: {{ $Affinities.key }}
-          operator: {{ $Affinities.operator }}
-          values:
-          {{- toYaml $Affinities.values | nindent 10 }}
-{{- end }}
-{{- if and (not (has $Affinities.rule  $afflag)) (eq $Affinities.rule "preferred")   }}
-  preferredDuringSchedulingIgnoredDuringExecution:
-{{- $afflag = append $afflag  $Affinities.rule  -}}
-{{- end }}
-{{- if eq $Affinities.rule "preferred" }}
-{{- if contains "node" $Affinities.type }}
-  - weight: {{ $Affinities.weight | default "100"  }}
-    preference:
-      matchExpressions:
-      - key: {{ $Affinities.key }}
-        operator: {{ $Affinities.operator }}
-        values:
-        {{- toYaml $Affinities.values | nindent 8 }} 
-{{- else if contains "pod" $Affinities.type }}
-  - weight: {{ $Affinities.weight | default "100"  }}
-    podAffinityTerm:
-      labelSelector:
-        matchExpressions:
-        - key: {{ $Affinities.key }}
-          operator: {{ $Affinities.operator }}
-          values:
-          {{- toYaml $Affinities.values | nindent 12 }}
-{{- end }}
-{{- end }}
-    {{- if and  (contains "pod" $Affinities.type) (eq $Affinities.rule "preferred") }}
-      topologyKey: "kubernetes.io/hostname"
-    {{- $afflag = append $afflag  "topology"  -}}
+{{- define "application.tplvalues.render" -}}
+    {{- if typeIs "string" .value }}
+        {{- tpl .value .context }}
+    {{- else }}
+        {{- tpl (.value | toYaml) .context }}
     {{- end }}
 {{- end -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
-
 
 {{/*
-ENV Secret
+Create chart name and version as used by the chart label.
 */}}
-
-{{- define "helm-template.envsecrets" -}}
-{{- range $key, $val := .Values.secretdata }}
-- name: {{  $key | replace "." "_" | upper }}
-  valueFrom:
-    configMapKeyRef:
-      key: {{ $key }}
-      name: {{ include "helm-template.name" $ }}-secrets
-{{- end }}
+{{- define "application.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
 {{- end }}
 
 {{/*
-Secret Data
+Common labels
 */}}
-{{- define "helm-template.secretdata" -}}
-{{- range $key, $val := .Values.secretdata }}
-{{ $key | indent 2}}: {{ $val | quote }}
+{{- define "application.labels" -}}
+helm.sh/chart: {{ include "application.chart" . }}
+{{- with include "application.version" . }}
+app.kubernetes.io/version: {{ quote . }}
 {{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+app.kubernetes.io/part-of: {{ include "application.name" . }}
 {{- end }}
 
 {{/*
-Volume Mounts
+Selector labels
 */}}
-
-{{- define "helm-template.volumemount" -}}
-{{- if .Values.volumes }}
-volumeMounts:
-{{- end }}
-{{- range $vol := .Values.volumes }}
-- mountPath: /opt/{{ $vol.name }}
-  name: {{ $vol.name }}
-{{- end }}
+{{- define "application.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "application.name" . }}
 {{- end }}
 
 {{/*
-Create the name of the service account to use
+Allow the release namespace to be overridden
 */}}
-{{- define "helm-template.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
-{{- default (include "helm-template.name" .) .Values.serviceAccount.name }}
-{{- else }}
-{{- default "default" .Values.serviceAccount.name }}
-{{- end }}
-{{- end }}
-
-
-{{ define "render-value" }}
-  {{- if kindIs "string" .value }}
-    {{- tpl .value .context }}
-  {{- else }}
-    {{- tpl (.value | toYaml) .context }}     
-  {{- end }}
-{{- end }}
+{{- define "application.namespace" -}}
+{{- default .Release.Namespace .Values.namespaceOverride -}}
+{{- end -}}

templates/alertmanagerconfig.yaml

@@ -0,0 +1,22 @@
+{{- if and (.Values.alertmanagerConfig).enabled (.Capabilities.APIVersions.Has "monitoring.coreos.com/v1alpha1") -}}
+apiVersion: monitoring.coreos.com/v1alpha1
+kind: AlertmanagerConfig
+metadata:
+  name: {{ template "application.name" . }}
+  namespace: {{ include "application.namespace" . }}
+  labels:
+  {{- include "application.labels" . | nindent 4 }}
+{{ toYaml .Values.alertmanagerConfig.selectionLabels | indent 4 }}
+spec:
+{{- if .Values.alertmanagerConfig.spec.route }}
+    route:
+{{ toYaml .Values.alertmanagerConfig.spec.route | indent 6 }}
+{{- end -}}
+{{- if .Values.alertmanagerConfig.spec.receivers }}
+    receivers: 
+{{ toYaml .Values.alertmanagerConfig.spec.receivers | indent 6 }}
+{{- end -}}
+{{- if .Values.alertmanagerConfig.spec.inhibitRules }}
+    inhibitRules: {{ toYaml .Values.alertmanagerConfig.spec.inhibitRules | nindent 6 }}
+{{- end -}}
+{{- end -}}