Add K8s deployment files, restructure to backend/frontend

k8s/backend/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: todo-backend
+  labels:
+    app: todo-backend
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: todo-backend
+  template:
+    metadata:
+      labels:
+        app: todo-backend
+    spec:
+      containers:
+      - name: todo-backend
+        image: todo-backend:latest
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 8080
+        env:
+        - name: SPRING_DATASOURCE_URL
+          valueFrom:
+            configMapKeyRef:
+              name: todo-config
+              key: DATABASE_URL
+        - name: SPRING_DATASOURCE_USERNAME
+          valueFrom:
+            configMapKeyRef:
+              name: todo-config
+              key: DATABASE_USERNAME
+        - name: SPRING_DATASOURCE_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: todo-secret
+              key: DATABASE_PASSWORD
+        - name: SPRING_REDIS_HOST
+          valueFrom:
+            configMapKeyRef:
+              name: todo-config
+              key: REDIS_HOST
+        - name: SPRING_REDIS_PORT
+          valueFrom:
+            configMapKeyRef:
+              name: todo-config
+              key: REDIS_PORT
+        resources:
+          requests:
+            memory: "512Mi"
+            cpu: "250m"
+          limits:
+            memory: "1Gi"
+            cpu: "500m"
+        livenessProbe:
+          httpGet:
+            path: /actuator/health
+            port: 8080
+          initialDelaySeconds: 60
+          periodSeconds: 10
+        readinessProbe:
+          httpGet:
+            path: /actuator/health
+            port: 8080
+          initialDelaySeconds: 30
+          periodSeconds: 5
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: todo-postgres
+  labels:
+    app: todo-postgres
+spec:
+  serviceName: todo-postgres
+  replicas: 1
+  selector:
+    matchLabels:
+      app: todo-postgres
+  template:
+    metadata:
+      labels:
+        app: todo-postgres
+    spec:
+      containers:
+      - name: postgres
+        image: postgres:15-alpine
+        ports:
+        - containerPort: 5432
+        env:
+        - name: POSTGRES_DB
+          value: building_materials
+        - name: POSTGRES_USER
+          valueFrom:
+            configMapKeyRef:
+              name: todo-config
+              key: DATABASE_USERNAME
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: todo-secret
+              key: DATABASE_PASSWORD
+        volumeMounts:
+        - name: postgres-data
+          mountPath: /var/lib/postgresql/data
+        - name: init-sql
+          mountPath: /docker-entrypoint-initdb.d
+        resources:
+          requests:
+            memory: "256Mi"
+            cpu: "100m"
+          limits:
+            memory: "512Mi"
+            cpu: "500m"
+      volumes:
+      - name: postgres-data
+        emptyDir: {}
+      - name: init-sql
+        configMap:
+          name: todo-init-sql
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: todo-redis
+  labels:
+    app: todo-redis
+spec:
+  serviceName: todo-redis
+  replicas: 1
+  selector:
+    matchLabels:
+      app: todo-redis
+  template:
+    metadata:
+      labels:
+        app: todo-redis
+    spec:
+      containers:
+      - name: redis
+        image: redis:7-alpine
+        ports:
+        - containerPort: 6379
+        command: ["redis-server", "--requirepass", ""]
+        resources:
+          requests:
+            memory: "128Mi"
+            cpu: "50m"
+          limits:
+            memory: "256Mi"
+            cpu: "200m"
+        volumeMounts:
+        - name: redis-data
+          mountPath: /data
+      volumes:
+      - name: redis-data
+        emptyDir: {}

k8s/backend/init-sql-configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: todo-init-sql
+data:
+  init.sql: |
+    -- 初始化数据库脚本
+    -- 此文件会在 PostgreSQL 首次启动时自动执行
+    CREATE TABLE IF NOT EXISTS "user" (
+        id VARCHAR(36) PRIMARY KEY,
+        username VARCHAR(50) NOT NULL UNIQUE,
+        password VARCHAR(255) NOT NULL,
+        real_name VARCHAR(100),
+        phone VARCHAR(20),
+        role VARCHAR(20) DEFAULT 'sales',
+        status INTEGER DEFAULT 1,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS category (
+        id VARCHAR(36) PRIMARY KEY,
+        name VARCHAR(100) NOT NULL,
+        parent_id VARCHAR(36),
+        sort_order INTEGER DEFAULT 0,
+        status INTEGER DEFAULT 1,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS product (
+        id VARCHAR(36) PRIMARY KEY,
+        name VARCHAR(200) NOT NULL,
+        category_id VARCHAR(36),
+        unit VARCHAR(20),
+        price DECIMAL(10,2),
+        stock_quantity INTEGER DEFAULT 0,
+        status INTEGER DEFAULT 1,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS customer (
+        id VARCHAR(36) PRIMARY KEY,
+        name VARCHAR(200) NOT NULL,
+        phone VARCHAR(20),
+        address VARCHAR(500),
+        contact_person VARCHAR(100),
+        remark TEXT,
+        status INTEGER DEFAULT 1,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS "order" (
+        id VARCHAR(36) PRIMARY KEY,
+        order_no VARCHAR(50) NOT NULL UNIQUE,
+        customer_id VARCHAR(36),
+        sales_user_id VARCHAR(36),
+        total_amount DECIMAL(10,2) DEFAULT 0,
+        status VARCHAR(20) DEFAULT 'pending',
+        remark TEXT,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS order_item (
+        id VARCHAR(36) PRIMARY KEY,
+        order_id VARCHAR(36) NOT NULL,
+        product_id VARCHAR(36) NOT NULL,
+        quantity INTEGER NOT NULL,
+        unit_price DECIMAL(10,2) NOT NULL,
+        subtotal DECIMAL(10,2) NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS stock (
+        id VARCHAR(36) PRIMARY KEY,
+        product_id VARCHAR(36) NOT NULL,
+        warehouse VARCHAR(100),
+        quantity INTEGER DEFAULT 0,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS stock_flow (
+        id VARCHAR(36) PRIMARY KEY,
+        product_id VARCHAR(36) NOT NULL,
+        type VARCHAR(20) NOT NULL,
+        quantity INTEGER NOT NULL,
+        remark VARCHAR(500),
+        operator_id VARCHAR(36),
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    -- 插入默认管理员
+    INSERT INTO "user" (id, username, password, real_name, role)
+    VALUES ('admin', 'admin', '$2a$10$N.zmdr9k7uOCQb376NoUnuTJ8iAt6Z5EHsM8lE9lBOsl7iAt6Z5EH', '管理员', 'admin')
+    ON CONFLICT (username) DO NOTHING;

k8s/backend/service.yaml

@@ -0,0 +1,38 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: todo-backend
+spec:
+  type: ClusterIP
+  selector:
+    app: todo-backend
+  ports:
+  - port: 8080
+    targetPort: 8080
+    protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: todo-postgres
+spec:
+  type: ClusterIP
+  selector:
+    app: todo-postgres
+  ports:
+  - port: 5432
+    targetPort: 5432
+    protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: todo-redis
+spec:
+  type: ClusterIP
+  selector:
+    app: todo-redis
+  ports:
+  - port: 6379
+    targetPort: 6379
+    protocol: TCP

k8s/configmap.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: todo-config
+data:
+  DATABASE_URL: "jdbc:postgresql://todo-postgres:5432/building_materials"
+  DATABASE_USERNAME: "postgres"
+  REDIS_HOST: "todo-redis"
+  REDIS_PORT: "6379"
+  API_BASE_URL: "http://todo-backend:8080"

k8s/frontend/deployment.yaml

@@ -0,0 +1,47 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: todo-frontend
+  labels:
+    app: todo-frontend
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: todo-frontend
+  template:
+    metadata:
+      labels:
+        app: todo-frontend
+    spec:
+      containers:
+      - name: todo-frontend
+        image: todo-frontend:latest
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 80
+        env:
+        - name: API_BASE_URL
+          valueFrom:
+            configMapKeyRef:
+              name: todo-config
+              key: API_BASE_URL
+        resources:
+          requests:
+            memory: "64Mi"
+            cpu: "50m"
+          limits:
+            memory: "128Mi"
+            cpu: "200m"
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 80
+          initialDelaySeconds: 10
+          periodSeconds: 10
+        readinessProbe:
+          httpGet:
+            path: /
+            port: 80
+          initialDelaySeconds: 5
+          periodSeconds: 5

k8s/frontend/service.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: todo-frontend
+spec:
+  type: NodePort
+  selector:
+    app: todo-frontend
+  ports:
+  - port: 80
+    targetPort: 80
+    protocol: TCP
+    nodePort: 30080

k8s/secret.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: todo-secret
+type: Opaque
+stringData:
+  DATABASE_PASSWORD: "postgres"