diff --git a/templates/deployment.yaml b/templates/deployment.yaml
new file mode 100644
index 0000000..0200f92
--- /dev/null
+++ b/templates/deployment.yaml
@@ -0,0 +1,69 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "{{ .Chart.Name }}.fullname" . }}
+  labels:
+    {{- include "{{ .Chart.Name }}.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "{{ .Chart.Name }}.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "{{ .Chart.Name }}.selectorLabels" . | nindent 8 }}
+    spec:
+      containers:
+        - name: nginx
+          image: "{{ .Values.image.nginx.registry }}/{{ .Values.image.nginx.repository }}:{{ .Values.image.nginx.tag }}"
+          imagePullPolicy: {{ .Values.image.nginx.pullPolicy }}
+          ports:
+            - containerPort: 80
+          volumeMounts:
+            - name: app-storage
+              mountPath: /var/www/html
+              subPath: html
+            - name: nginx-config
+              mountPath: /etc/nginx/nginx.conf
+              subPath: nginx.conf
+        - name: app-fpm
+          image: "{{ .Values.image.php.registry }}/{{ .Values.image.php.repository }}:{{ .Values.image.php.tag }}"
+          imagePullPolicy: {{ .Values.image.php.pullPolicy }}
+          ports:
+            - name: fpm
+              containerPort: 9000  # PHP-FPMは9000ポートでリッスン
+          volumeMounts:
+            - name: app-storage
+              mountPath: /var/www/html
+              subPath: html
+          env:
+            - name: DB_HOST
+              value: {{ .Values.externalDatabase.host | quote }}
+            - name: DB_PORT
+              value: {{ .Values.externalDatabase.port | quote }}
+            - name: DB_NAME
+              value: {{ .Values.externalDatabase.database | quote }}
+            - name: DB_USER
+              value: {{ .Values.externalDatabase.username | quote }}
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "{{ .Chart.Name }}.fullname" . }}-db-secret
+                  key: {{ include "{{ .Chart.Name }}.fullname" . }}-db-key
+      dnsPolicy: ClusterFirst
+      dnsConfig:
+        options:
+        - name: ndots
+          value: "1"
+      volumes:
+        - name: app-storage
+          {{- if .Values.persistence.enabled }}
+          persistentVolumeClaim:
+            claimName: {{ include "{{ .Chart.Name }}.fullname" . }}-pvc
+          {{- else }}
+          emptyDir: {}
+          {{- end }}
+        - name: nginx-config
+          configMap:
+            name: {{ include "{{ .Chart.Name }}.fullname" . }}-nginx-config