From b1cba050642d1bdc39128635dd78d2f4e92cdeb6 Mon Sep 17 00:00:00 2001
From: Mac Browning <mac@vantage.sh>
Date: Mon, 16 Oct 2023 19:20:03 -0700
Subject: [PATCH] Initial commit.

---
 .helmignore                                   | 23 ++++++
 LICENSE                                       | 21 +++++
 README.md                                     | 20 +++++
 charts/vantage-kubernetes-agent/Chart.yaml    |  7 ++
 .../templates/_helpers.tpl                    | 58 +++++++++++++
 .../templates/clusterrole.yaml                | 17 ++++
 .../templates/clusterrolebinding.yaml         | 18 ++++
 .../templates/secret.yaml                     | 10 +++
 .../templates/service.yaml                    | 15 ++++
 .../templates/serviceaccount.yaml             | 10 +++
 .../templates/statefulset.yaml                | 82 +++++++++++++++++++
 .../templates/tests/test-connection.yaml      | 15 ++++
 charts/vantage-kubernetes-agent/values.yaml   | 62 ++++++++++++++
 13 files changed, 358 insertions(+)
 create mode 100644 .helmignore
 create mode 100644 LICENSE
 create mode 100644 README.md
 create mode 100644 charts/vantage-kubernetes-agent/Chart.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/_helpers.tpl
 create mode 100644 charts/vantage-kubernetes-agent/templates/clusterrole.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/clusterrolebinding.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/secret.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/service.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/serviceaccount.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/statefulset.yaml
 create mode 100644 charts/vantage-kubernetes-agent/templates/tests/test-connection.yaml
 create mode 100644 charts/vantage-kubernetes-agent/values.yaml

diff --git a/.helmignore b/.helmignore
new file mode 100644
index 0000000..0e8a0eb
--- /dev/null
+++ b/.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/
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8aa2645
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) [year] [fullname]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f07ad90
--- /dev/null
+++ b/README.md
@@ -0,0 +1,20 @@
+## Usage
+
+[Helm](https://helm.sh) must be installed to use the charts.  Please refer to
+Helm's [documentation](https://helm.sh/docs) to get started.
+
+Once Helm has been set up correctly, add the repo as follows:
+
+  helm repo add vantage https://vantage-sh.github.io/helm-charts
+
+If you had already added this repo earlier, run `helm repo update` to retrieve
+the latest versions of the packages.  You can then run `helm search repo
+vantage` to see the charts.
+
+To install the `vantage-kubernetes-agent` chart:
+
+    helm install -n vantage vantage-kubernetes-agent vantage/vantage-kubernetes-agent --set agent.token=$VANTAGE_API_TOKEN,agent.clusterID=$CLUSTER_ID
+
+To uninstall the chart:
+
+    helm delete vantage-kubernetes-agent
diff --git a/charts/vantage-kubernetes-agent/Chart.yaml b/charts/vantage-kubernetes-agent/Chart.yaml
new file mode 100644
index 0000000..9c0b29a
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/Chart.yaml
@@ -0,0 +1,7 @@
+apiVersion: v2
+name: vantage-kubernetes-agent
+description: A Helm chart for provisioning the Vantage Kubernetes agent.
+type: application
+version: 1.0.0
+appVersion: "1.0.0"
+icon: "https://www.vantage.sh/nav-logo.svg"
diff --git a/charts/vantage-kubernetes-agent/templates/_helpers.tpl b/charts/vantage-kubernetes-agent/templates/_helpers.tpl
new file mode 100644
index 0000000..81dac25
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/_helpers.tpl
@@ -0,0 +1,58 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "vantage-kubernetes-agent.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 "vantage-kubernetes-agent.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 "vantage-kubernetes-agent.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "vantage-kubernetes-agent.labels" -}}
+helm.sh/chart: {{ include "vantage-kubernetes-agent.chart" . }}
+{{ include "vantage-kubernetes-agent.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "vantage-kubernetes-agent.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "vantage-kubernetes-agent.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "vantage-kubernetes-agent.serviceAccountName" -}}
+{{- default (include "vantage-kubernetes-agent.fullname" .) .Values.serviceAccount.name }}
+{{- end }}
diff --git a/charts/vantage-kubernetes-agent/templates/clusterrole.yaml b/charts/vantage-kubernetes-agent/templates/clusterrole.yaml
new file mode 100644
index 0000000..01267f3
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/clusterrole.yaml
@@ -0,0 +1,17 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+  {{- with .Values.clusterRole.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+rules:
+- apiGroups: [""]
+  resources: ["nodes/metrics"]
+  verbs: ["get"]
+- apiGroups: [""]
+  resources: ["nodes", "pods"]
+  verbs: ["get", "watch", "list"]
diff --git a/charts/vantage-kubernetes-agent/templates/clusterrolebinding.yaml b/charts/vantage-kubernetes-agent/templates/clusterrolebinding.yaml
new file mode 100644
index 0000000..d165d8c
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/clusterrolebinding.yaml
@@ -0,0 +1,18 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+  {{- with .Values.clusterRoleBinding.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+subjects:
+- kind: ServiceAccount
+  name: {{ include "vantage-kubernetes-agent.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: ClusterRole
+  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+  apiGroup: rbac.authorization.k8s.io
diff --git a/charts/vantage-kubernetes-agent/templates/secret.yaml b/charts/vantage-kubernetes-agent/templates/secret.yaml
new file mode 100644
index 0000000..e82c82a
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/secret.yaml
@@ -0,0 +1,10 @@
+{{- $token := .Values.agent.token | required ".Values.agent.token is required."}}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+type: Opaque
+data:
+  token: {{ $token | b64enc | quote }}
diff --git a/charts/vantage-kubernetes-agent/templates/service.yaml b/charts/vantage-kubernetes-agent/templates/service.yaml
new file mode 100644
index 0000000..a9a7e85
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/service.yaml
@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: {{ .Values.service.name }}
+      protocol: TCP
+      name: {{ .Values.service.name }}
+  selector:
+    {{- include "vantage-kubernetes-agent.selectorLabels" . | nindent 4 }}
diff --git a/charts/vantage-kubernetes-agent/templates/serviceaccount.yaml b/charts/vantage-kubernetes-agent/templates/serviceaccount.yaml
new file mode 100644
index 0000000..99e4091
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/serviceaccount.yaml
@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "vantage-kubernetes-agent.serviceAccountName" . }}
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}q
diff --git a/charts/vantage-kubernetes-agent/templates/statefulset.yaml b/charts/vantage-kubernetes-agent/templates/statefulset.yaml
new file mode 100644
index 0000000..dc2346f
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/statefulset.yaml
@@ -0,0 +1,82 @@
+{{- $clusterID := .Values.agent.clusterID | required ".Values.clusterID.token is required."}}
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+spec:
+  replicas: 1
+  serviceName: vantage-agent
+  selector:
+    matchLabels:
+      {{- include "vantage-kubernetes-agent.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "vantage-kubernetes-agent.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "vantage-kubernetes-agent.serviceAccountName" . }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+            - name: VANTAGE_DEBUG
+              value: "{{ .Values.agent.debug }}"
+            - name: VANTAGE_LOG_LEVEL
+              value: "{{ .Values.agent.logLevel }}"
+            - name: VANTAGE_CLUSTER_ID
+              value: "{{ $clusterID }}"
+            - name: VANTAGE_API_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "vantage-kubernetes-agent.fullname" . }}
+                  key: token
+            {{- with .Values.agent.apiHost }}
+            - name: VANTAGE_API_HOST
+              value: "{{ . }}"
+            {{ end }}
+            {{- with .Values.persist }}
+            - name: VANTAGE_PERSIST_DIR
+              value: "{{ .mountPath }}"
+            {{ end }}
+          ports:
+            - name: {{ .Values.service.name }}
+              containerPort: {{ .Values.service.port }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: {{ .Values.service.name }}
+          readinessProbe:
+            httpGet:
+              path: /healthz
+              port: {{ .Values.service.name }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          {{- with .Values.persist }}
+          volumeMounts:
+            - name: {{ .name }}
+              mountPath: {{ .mountPath }}
+          {{ end }}
+  {{- with .Values.persist }}
+  volumeClaimTemplates:
+  - metadata:
+      name: {{ .name }}
+    spec:
+      accessModes: [ "ReadWriteOnce" ]
+      resources:
+        requests:
+          storage: {{ .size }}
+  {{ end }}
diff --git a/charts/vantage-kubernetes-agent/templates/tests/test-connection.yaml b/charts/vantage-kubernetes-agent/templates/tests/test-connection.yaml
new file mode 100644
index 0000000..871038a
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/templates/tests/test-connection.yaml
@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "vantage-kubernetes-agent.fullname" . }}-test-connection"
+  labels:
+    {{- include "vantage-kubernetes-agent.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "vantage-kubernetes-agent.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never
diff --git a/charts/vantage-kubernetes-agent/values.yaml b/charts/vantage-kubernetes-agent/values.yaml
new file mode 100644
index 0000000..c9df2b9
--- /dev/null
+++ b/charts/vantage-kubernetes-agent/values.yaml
@@ -0,0 +1,62 @@
+# Default values for vantage-kubernetes-agent.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+image:
+  repository: "quay.io/vantage-sh/kubernetes-agent"
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+
+agent:
+  debug: false
+  # logLevel corresponds to https://pkg.go.dev/log/slog#Level
+  # Info: 0
+  # Debug: -4
+  logLevel: "0"
+  # Unique identifier for your cluster.
+  clusterID: ""
+  # Vantage API Token
+  token: ""
+
+persist:
+  mountPath: "/var/lib/vantage-agent"
+  name: "data"
+  size: "10Gi"
+
+service:
+  name: report
+  type: ClusterIP
+  port: 9010
+
+resources:
+  limits:
+    cpu: 10m
+    memory: 50Mi
+  requests:
+    cpu: 10m
+    memory: 50Mi
+
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+
+serviceAccount:
+  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: ""
+
+clusterRole:
+  annotations: {}
+clusterRoleBinding:
+  annotations: {}
+
+podAnnotations: {}
+podSecurityContext: {}
+securityContext: {}
+nodeSelector: {}
+tolerations: []
+affinity: {}