Namespaces chart for namespace creation and defaults

charts/namespaces/.helmignore

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+tests

charts/namespaces/Chart.yaml

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+apiVersion: v2
+name: namespaces
+description: Chart to create namespaces and their defaults
+
+# 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
+
+# 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

charts/namespaces/templates/NOTES.txt

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+TODO intro text

charts/namespaces/templates/_helpers.tpl

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

charts/namespaces/templates/namespace.yaml

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+{{- range .Values.namespaces }}
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: {{ .name }}
+{{- end }}

charts/namespaces/tests/pvc_test.yaml

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+suite: test deployment
+templates:
+  - namespace.yaml
+tests:
+  - it: Should create namespace
+    set:
+      namespaces:
+        - name: staging
+    asserts:
+      - equal:
+          path: metadata.name
+          value: staging

charts/namespaces/values.yaml

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+namespaces:
+  - name: staging