feat(generic-app): add generic-app chart (#114)

charts/generic-app/.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/generic-app/Chart.yaml

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+apiVersion: v2
+name: generic-app
+description: A generic app chart
+
+# 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.
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application.
+appVersion: 'n/a'

charts/generic-app/README.md

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+# Generic-App Helm Chart
+
+A generic app chart
+
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) ![Version: 0.1.0](https://img.shields.io/badge/Version-0.1.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: n/a](https://img.shields.io/badge/AppVersion-n/a-informational?style=flat-square)
+
+## Introduction
+
+This is generic chart for deploying applications using `Deployment`s or `StatefulSet`s, alongside `Service`s, `ConfigMap`s and `Secret`s.
+
+## Chart Features
+
+- Actively maintained by [GraphOps](https://graphops.xyz) [and contributors](https://github.com/graphops/launchpad-charts/graphs/contributors)
+
+## Quickstart
+
+To install the chart with the release name `my-release`:
+
+```console
+$ helm repo add graphops http://graphops.github.io/launchpad-charts
+$ helm install my-release graphops/generic-app
+```
+
+## Configuring generic-app
+
+...
+
+## Upgrading
+
+We recommend that you pin the version of the Chart that you deploy. You can use the `--version` flag with `helm install` and `helm upgrade` to specify a chart version constraint.
+
+This project uses [Semantic Versioning](https://semver.org/). Changes to the version of the application (the `appVersion`) that the Chart deploys will generally result in a patch version bump for the Chart. Breaking changes to the Chart or its `values.yaml` interface will be reflected with a major version bump.
+
+We do not recommend that you upgrade the application by overriding `image.tag`. Instead, use the version of the Chart that is built for your desired `appVersion`.
+
+## Values
+
+| Key | Description | Type | Default |
+|-----|-------------|------|---------|
+ | apps | Applications to deploy | object | `{}` |
+ | configMaps | ConfigMaps to create | object | `{}` |
+ | fullnameOverride |  | string | `""` |
+ | ingress | Ingress | object | `{"annotations":{},"enabled":false,"hosts":[{"host":"chart-example.local","paths":[]}],"tls":[]}` |
+ | nameOverride |  | string | `""` |
+ | secrets | Secrets to create | object | `{}` |
+
+## Contributing
+
+We welcome and appreciate your contributions! Please see the [Contributor Guide](/CONTRIBUTING.md), [Code Of Conduct](/CODE_OF_CONDUCT.md) and [Security Notes](/SECURITY.md) for this repository.

charts/generic-app/README.md.gotmpl

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+{{ template "graphops.title" . }}
+
+{{ template "chart.description" . }}
+
+{{ template "graphops.badges" . }}
+
+## Introduction
+
+This is generic chart for deploying applications using `Deployment`s or `StatefulSet`s, alongside `Service`s, `ConfigMap`s and `Secret`s.
+
+## Chart Features
+
+- Actively maintained by [GraphOps](https://graphops.xyz) [and contributors](https://github.com/graphops/launchpad-charts/graphs/contributors)
+
+## Quickstart
+
+To install the chart with the release name `my-release`:
+
+```console
+$ helm repo add graphops http://graphops.github.io/launchpad-charts
+$ helm install my-release graphops/{{ template "chart.name" . }}
+```
+
+## Configuring {{ template "chart.name" . }}
+
+...
+
+{{ template "graphops.upgradingSection" . }}
+
+{{ template "chart.requirementsSection" . }}
+
+{{ template "chart.valuesSection" . }}
+
+{{ template "graphops.contributingSection" . }}

charts/generic-app/templates/_helpers.tpl

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