feat: Add initial scaffolding for helm chart source

- Operator Helm chart source code with reside in this project.
  This PR adds some initial Helm chart configuration to deploy the certified operator.

config/helmchart/.helmignore

@@ -0,0 +1,23 @@
+# 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/

config/helmchart/Chart.yaml

@@ -0,0 +1,47 @@
+apiVersion: v2
+name: falcon-platform
+description: A Helm chart to deploy CrowdStrike Falcon sensors into Kubernetes clusters using the CrowdStrike Falcon Operator.
+
+# 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: $VERSION
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "$VERSION"
+
+keywords:
+  - CrowdStrike
+  - Falcon
+  - EDR
+  - kubernetes
+  - security
+  - monitoring
+  - alerting
+  - operator
+
+home: https://crowdstrike.com
+
+sources:
+  - https://github.com/CrowdStrike/falcon-helm
+  - https://github.com/CrowdStrike/falcon-operator
+
+maintainers:
+  - name: CrowdStrike Solutions Architecture
+    email: [email protected]
+
+icon: https://raw.githubusercontent.com/CrowdStrike/falcon-helm/main/images/crowdstrike-logo.svg
+kubeVersion: ">1.24.0-0"

config/helmchart/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "falcon-platform.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 "falcon-platform.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 "falcon-platform.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "falcon-platform.labels" -}}
+helm.sh/chart: {{ include "falcon-platform.chart" . }}
+{{ include "falcon-platform.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "falcon-platform.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "falcon-platform.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "falcon-platform.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "falcon-platform.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

config/helmchart/templates/operatorgroup.yaml

@@ -0,0 +1,7 @@
+{{- if .Values.certified.enabled }}
+apiVersion: operators.coreos.com/v1
+kind: OperatorGroup
+metadata:
+  name: falcon-operator
+  namespace: {{ .Release.Namespace }}
+{{- end }}

config/helmchart/templates/subscription.yaml

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+{{- if .Values.certified.enabled }}
+---
+apiVersion: operators.coreos.com/v1alpha1
+kind: Subscription
+metadata:
+  name: falcon-operator
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "falcon-platform.labels" . | nindent 4 }}
+spec:
+  channel: {{ .Values.certified.channel }}
+  installPlanApproval: {{ .Values.certified.installPlanApproval }}
+  name: falcon-operator-rhmp
+  source: redhat-marketplace
+  sourceNamespace: openshift-marketplace
+  startingCSV: falcon-operator.v{{ .Chart.AppVersion }}
+{{- end }}

config/helmchart/values.yaml

@@ -0,0 +1,4 @@
+certified:
+  enabled: false
+  channel: stable
+  installPlanApproval: Automatic