Initial commit: k3s deployment configurations

k3s/my-blog/01-mysql.yaml

@@ -0,0 +1,72 @@
+# 01-mysql.yaml (新版)
+
+# --- 第一部分：申请一张硬盘券 (PVC) ---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mysql-pvc           # 记住这个券的名字
+  namespace: demo-space
+spec:
+  accessModes:
+    - ReadWriteOnce         # 只能被一个节点读写
+  storageClassName: longhorn # K3s 默认的存储驱动，利用 VPS 本地硬盘
+  resources:
+    requests:
+      storage: 2Gi          # 申请 2GB 大小
+
+---
+
+# --- 第二部分：数据库服务 (不变) ---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mysql-service
+  namespace: demo-space
+spec:
+  ports:
+  - port: 3306
+  selector:
+    app: wordpress-mysql
+
+---
+
+# --- 第三部分：部署数据库 (挂载硬盘) ---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: wordpress-mysql
+  namespace: demo-space
+spec:
+  selector:
+    matchLabels:
+      app: wordpress-mysql
+  strategy:
+    type: Recreate # 有状态应用建议用 Recreate (先关旧的再开新的)
+  template:
+    metadata:
+      labels:
+        app: wordpress-mysql
+    spec:
+      containers:
+      - image: mariadb:10.6.4-focal
+        name: mysql
+        env:
+        - name: MYSQL_ROOT_PASSWORD
+          value: "password123"
+        - name: MYSQL_DATABASE
+          value: "wordpress"
+        - name: MYSQL_USER
+          value: "wordpress"
+        - name: MYSQL_PASSWORD
+          value: "wordpress"
+        ports:
+        - containerPort: 3306
+          name: mysql
+        # ▼▼▼ 重点变化在这里 ▼▼▼
+        volumeMounts:
+        - name: mysql-store
+          mountPath: /var/lib/mysql # 容器里数据库存文件的位置
+      volumes:
+      - name: mysql-store
+        persistentVolumeClaim:
+          claimName: mysql-pvc      # 使用上面定义的那张券