Added base helm chart for k8s

Signed-off-by: Abhishek Dubey <[email protected]>

charts/base/Chart.yaml

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+---
+apiVersion: v1
+description: A base helm chart which will be used by different helm charts
+engine: gotpl
+maintainers:
+  - name: iamabhishek-dubey
+    email: "[email protected]"
+    url: https://github.com/iamabhishek-dubey
+name: base
+sources:
+  - https://github.com/ot-container-kit/helm-charts
+version: 0.1.0
+appVersion: "0.1.0"
+home: https://github.com/ot-container-kit/helm-charts
+keywords:
+  - deployment
+  - base
+  - opstree
+  - kubernetes
+  - openshift
+icon: https://raw.githubusercontent.com/OT-CONTAINER-KIT/helm-charts/main/static/helm-chart-logo.svg

charts/base/README.md

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+# base
+
+![Version: 0.1.0](https://img.shields.io/badge/Version-0.1.0-informational?style=flat-square) ![AppVersion: 0.1.0](https://img.shields.io/badge/AppVersion-0.1.0-informational?style=flat-square)
+
+A base helm chart which will be used by different helm charts.
+
+**Homepage:** <https://github.com/ot-container-kit/helm-charts>
+
+## Maintainers
+
+| Name              | Email                      | Url                                    |
+|-------------------|----------------------------|----------------------------------------|
+| iamabhishek-dubey | [email protected] | <https://github.com/iamabhishek-dubey> |
+
+## Source Code
+
+* <https://github.com/ot-container-kit/helm-charts>
+
+## Values
+
+| Key                        | Type   | Default | Description                                                                    |
+|----------------------------|--------|---------|--------------------------------------------------------------------------------|
+| config                     | object | `{}`    | ConfigMap key value pair to create configs                                     |
+| serviceAccount.annotations | object | `{}`    | Annotations to add to the service account                                      |
+| serviceAccount.name        | string | `""`    | If not set and create is true, a name is generated using the fullname template |
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v1.14.2](https://github.com/norwoodj/helm-docs/releases/v1.14.2)

charts/base/templates/_configmap.tpl

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+{{- define "configmap" -}}
+{{- if .Values.base.config -}}
+{{- $top := . -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "base.fullname" . }}
+  labels:
+    {{- include "base.labels" . | nindent 4 }}
+data:
+  {{- toYaml .Values.base.config | nindent 2 -}}
+{{- end -}}
+{{- end -}}

charts/base/templates/_helpers.tpl

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+{{/*
+Create a default fully qualified app name.
+We truncate service name aka .Release.Name at 59 chars because some Kubernetes name fields are limited to 63 (by the DNS naming spec).
+We append 4 characters for chart type at the end which is -web or -crn or -wrk or -job or -sts.
+*/}}
+{{- define "base.fullname" -}}
+{{- $name := .Release.Name | trunc 59 | trimSuffix "-" }}
+{{- printf "%s-%s" $name .Chart.Name }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "base.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "base.labels" -}}
+helm.sh/chart: {{ include "base.chart" . }}
+{{ include "base.selectorLabels" . }}
+{{- if .Release.Revision }}
+app.kubernetes.io/version: {{ .Release.Revision | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "base.selectorLabels" -}}
+app.kubernetes.io/name: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "base.serviceAccountName" -}}
+{{- default (include "base.fullname" .) .Values.base.serviceAccount.name }}
+{{- end }}

charts/base/templates/_serviceaccount.tpl

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+{{- define "serviceAccount" -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "base.serviceAccountName" . }}
+  labels:
+    {{- include "base.labels" . | nindent 4 }}
+  {{- with .Values.base.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

charts/base/values.yaml

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+# Default values for base template.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+serviceAccount:
+  # -- Annotations to add to the service account
+  annotations: {}
+  # -- The name of the service account to use.
+  # -- If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+# -- ConfigMap key value pair to create configs
+config: {}