feat: add helm charts for Kubernetes deployment

Makefile

@@ -142,7 +142,20 @@ install-docker: check-container-tool ## Install app using $(CONTAINER_TOOL)
 uninstall-docker: check-container-tool ## Uninstall app from $(CONTAINER_TOOL)
 	@echo "Stopping and removing container in $(CONTAINER_TOOL)..."
 	-$(CONTAINER_TOOL) stop $(PROJECT_NAME)-container && $(CONTAINER_TOOL) rm $(PROJECT_NAME)-container
-@echo "$(CONTAINER_TOOL) uninstallation complete. Remove alias if set: unalias $(PROJECT_NAME)"
+	@echo "$(CONTAINER_TOOL) uninstallation complete. Remove alias if set: unalias $(PROJECT_NAME)"
+
+### Helm Targets
+.PHONY: install-helm
+install-helm: check-helm ## Install app using Helm
+	@echo "Installing chart with Helm..."
+	helm upgrade --install $(PROJECT_NAME) helm/$(PROJECT_NAME) --namespace default
+	@echo "Helm installation complete."
+
+.PHONY: uninstall-helm
+uninstall-helm: check-helm ## Uninstall app using Helm
+	@echo "Uninstalling chart with Helm..."
+	helm uninstall $(PROJECT_NAME) --namespace default
+	@echo "Helm uninstallation complete."
 
 .PHONY: env
 env: ## Print environment variables
@@ -152,13 +165,13 @@ env: ## Print environment variables
 
 
 ##@ Tools
-
 .PHONY: check-tools
-check-tools: \
-  check-go \
-  check-ginkgo \
-  check-golangci-lint \
-  check-container-tool 
+check-tools:
+	check-go \
+	check-ginkgo \
+	check-golangci-lint \
+	check-container-tool \
+	check-helm
 	@echo "✅ All required tools are installed."
 
 .PHONY: check-go
@@ -182,6 +195,12 @@ check-container-tool:
 	  echo "❌ $(CONTAINER_TOOL) is not installed."; \
 	  echo "🔧 Try: sudo apt install $(CONTAINER_TOOL) OR brew install $(CONTAINER_TOOL)"; exit 1; }
 
+.PHONY: check-helm
+check-helm:
+	@command -v helm >/dev/null 2>&1 || { \
+	  echo "❌ helm is not installed. Install it from https://helm.sh/docs/intro/install/"; exit 1; }
+
+
 .PHONY: check-builder
 check-builder:
 	@if [ -z "$(BUILDER)" ]; then \

helm/llm-d-inference-sim/.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/

helm/llm-d-inference-sim/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: llm-d-inference-sim
+description: A Helm chart for the vLLM Simulator
+
+# 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
+
+# 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: "v0.4.0"

helm/llm-d-inference-sim/templates/NOTES.txt

@@ -0,0 +1,42 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "llm-d-inference-sim.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch its status by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "llm-d-inference-sim.fullname" . }}"'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "llm-d-inference-sim.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0)}}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "llm-d-inference-sim.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  export LOCAL_PORT=8001
+  export HOST_NAME=localhost
+
+  echo "Run 'kubectl port-forward --namespace {{ .Release.Namespace }} $POD_NAME $LOCAL_PORT:$CONTAINER_PORT &' to forward the port."
+  echo "Then, you can test the service with:"
+
+curl --request POST \
+  --url http://$HOST_NAME:$LOCAL_PORT/v1/chat/completions \
+  --header 'content-type: application/json' \
+  --data '{ 
+  "model": "model1", 
+  "messages": [ 
+    { 
+      "role": "system", 
+      "content": "You are a helpful assistant." 
+    }, 
+    { 
+      "role": "user", 
+      "content": "Hello!" 
+    } 
+  ] 
+}'
+{{- end }}

helm/llm-d-inference-sim/templates/_helpers.tpl

@@ -0,0 +1,53 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "llm-d-inference-sim.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 "llm-d-inference-sim.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 "llm-d-inference-sim.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "llm-d-inference-sim.labels" -}}
+helm.sh/chart: {{ include "llm-d-inference-sim.chart" . }}
+{{ include "llm-d-inference-sim.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "llm-d-inference-sim.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "llm-d-inference-sim.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+

helm/llm-d-inference-sim/templates/configmap.yaml

@@ -0,0 +1,23 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "llm-d-inference-sim.fullname" . }}-config
+  labels:
+    {{- include "llm-d-inference-sim.labels" . | nindent 4 }}
+data:
+  config.yaml: |
+    port: {{ .Values.config.port }}
+    model: "{{ .Values.config.model }}"
+    served-model-name:
+    {{- toYaml .Values.config.servedModelName | nindent 4 }}
+    max-loras: {{ .Values.config.maxLoras }}
+    max-cpu-loras: {{ .Values.config.maxCpuLoras }}
+    max-num-seqs: {{ .Values.config.maxNumSeqs }}
+    max-model-len: {{ .Values.config.maxModelLen }}
+    lora-modules:
+    {{- toYaml .Values.config.loraModules | nindent 4 }}
+    mode: "{{ .Values.config.mode }}"
+    time-to-first-token: {{ .Values.config.timeToFirstToken }}
+    inter-token-latency: {{ .Values.config.interTokenLatency }}
+    kv-cache-transfer-latency: {{ .Values.config.kvCacheTransferLatency }}
+    seed: {{ .Values.config.seed }}

helm/llm-d-inference-sim/templates/deployment.yaml

@@ -0,0 +1,89 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "llm-d-inference-sim.fullname" . }}
+  labels:
+    {{- include "llm-d-inference-sim.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "llm-d-inference-sim.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        checksum/config: {{ include (print .Template.BasePath "/configmap.yaml") . | sha256sum }}
+      {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "llm-d-inference-sim.labels" . | nindent 8 }}
+        {{- with .Values.podLabels }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.podSecurityContext }}
+      securityContext:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          {{- with .Values.securityContext }}
+          securityContext:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            - --config
+            - /config/config.yaml
+          env:
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  apiVersion: v1
+                  fieldPath: metadata.name
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  apiVersion: v1
+                  fieldPath: metadata.namespace
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.port }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /ready
+              port: http
+          {{- with .Values.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          volumeMounts:
+            - name: config
+              mountPath: /config
+      volumes:
+        - name: config
+          configMap:
+            name: {{ include "llm-d-inference-sim.fullname" . }}-config
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

helm/llm-d-inference-sim/templates/ingress.yaml

@@ -0,0 +1,43 @@
+{{- if .Values.ingress.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "llm-d-inference-sim.fullname" . }}
+  labels:
+    {{- include "llm-d-inference-sim.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- with .Values.ingress.className }}
+  ingressClassName: {{ . }}
+  {{- end }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- with .pathType }}
+            pathType: {{ . }}
+            {{- end }}
+            backend:
+              service:
+                name: {{ include "llm-d-inference-sim.fullname" $ }}
+                port:
+                  number: {{ $.Values.service.port }}
+          {{- end }}
+    {{- end }}
+{{- end }}

helm/llm-d-inference-sim/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "llm-d-inference-sim.fullname" . }}
+  labels:
+    {{- include "llm-d-inference-sim.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "llm-d-inference-sim.selectorLabels" . | nindent 4 }}