将 Azure Database for MySQL 实例连接到 Azure Spring Apps 中的应用程序

1. 在项目的 pom.xml 文件中，添加以下依赖项：

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-data-jpa</artifactId>
   </dependency>
   <dependency>
       <groupId>com.azure.spring</groupId>
       <artifactId>spring-cloud-azure-starter-jdbc-mysql</artifactId>
   </dependency>
   

2. 在 application.properties 文件中，删除所有 spring.datasource.* 属性。

3. 通过运行 az spring app deploy 更新当前应用，或者通过运行 az spring app deployment create 针对此更改创建新的部署。

将应用连接到 Azure Database for MySQL 实例

以下 Terraform 脚本演示如何使用 Azure Database for MySQL 设置 Azure Spring Apps 应用。

provider "azurerm" {
  features {}
}

variable "application_name" {
  type        = string
  description = "The name of your application"
  default     = "demo-abc"
}

variable "administrator_login" {
  type        = string
  description = "The MySQL administrator login"
  default     = "myadmin"
}

resource "azurerm_resource_group" "example" {
  name     = "example-resources"
  location = "China North 2"
}

resource "random_password" "password" {
  length           = 32
  special          = true
  override_special = "_%@"
}

resource "azurerm_mysql_server" "database" {
  name                = "mysql-${var.application_name}-001"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location

  administrator_login          = var.administrator_login
  administrator_login_password = random_password.password.result

  sku_name                          = "B_Gen5_1"
  storage_mb                        = 5120
  version                           = "5.7"
  auto_grow_enabled                 = true
  backup_retention_days             = 7
  geo_redundant_backup_enabled      = false
  infrastructure_encryption_enabled = false
  public_network_access_enabled     = true
  ssl_enforcement_enabled           = true
  ssl_minimal_tls_version_enforced  = "TLS1_2"
}

resource "azurerm_mysql_database" "database" {
  name                = "mysqldb-${var.application_name}-001"
  resource_group_name = azurerm_resource_group.example.name
  server_name         = azurerm_mysql_server.database.name
  charset             = "utf8"
  collation           = "utf8_unicode_ci"
}

# This rule is to enable the 'Allow access to Azure services' checkbox
resource "azurerm_mysql_firewall_rule" "database" {
  name                = "mysqlfw-${var.application_name}-001"
  resource_group_name = azurerm_resource_group.example.name
  server_name         = azurerm_mysql_server.database.name
  start_ip_address    = "0.0.0.0"
  end_ip_address      = "0.0.0.0"
}

resource "azurerm_spring_cloud_service" "example" {
  name                = "example-springcloud"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
}

resource "azurerm_spring_cloud_app" "example" {
  name                = "example-springcloudapp"
  resource_group_name = azurerm_resource_group.example.name
  service_name        = azurerm_spring_cloud_service.example.name
  is_public           = true
  https_only          = true
}

resource "azurerm_spring_cloud_java_deployment" "example" {
  name                = "default"
  spring_cloud_app_id = azurerm_spring_cloud_app.example.id
  quota {
    cpu    = "2"
    memory = "4Gi"
  }
  instance_count      = 2
  jvm_options         = "-XX:+PrintGC"
  runtime_version     = "Java_11"

  environment_variables = {
    "spring.datasource.url" : "jdbc:mysql://${azurerm_mysql_server.database.fqdn}:3306/${azurerm_mysql_database.database.name}?useSSL=true&requireSSL=false&useLegacyDatetimeCode=false&serverTimezone=UTC"
    "spring.datasource.username" : "${var.administrator_login}@${azurerm_mysql_server.database.name}"
    "spring.datasource.password" : random_password.password.result
    "spring.jpa.properties.hibernate.dialect" : "org.hibernate.dialect.MySQL5InnoDBDialect"
  }
}

resource "azurerm_spring_cloud_active_deployment" "example" {
  spring_cloud_app_id = azurerm_spring_cloud_app.example.id
  deployment_name     = azurerm_spring_cloud_java_deployment.example.name
}