feature: shared session for multi apollo portal (#3786)

* add spring session support

* fix spring session support unit test

* move default store-type to application.yml

* add doc

* add CHANGES

* update doc

CHANGES.md

@@ -48,6 +48,7 @@ Apollo 1.9.0
 * [update OIDC documentation](https://github.com/ctripcorp/apollo/pull/3766)
 * [feature: add Spring Boot 2.4 config data loader support](https://github.com/ctripcorp/apollo/pull/3754)
 * [feat(open-api): get authorized apps](https://github.com/ctripcorp/apollo/pull/3647)
+* [feature: shared session for multi apollo portal](https://github.com/ctripcorp/apollo/pull/3786)
 ------------------
 All issues and pull requests are [here](https://github.com/ctripcorp/apollo/milestone/6?closed=1)
 

apollo-portal/pom.xml

@@ -51,6 +51,20 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.session</groupId>
+			<artifactId>spring-session-core</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.session</groupId>
+			<artifactId>spring-session-data-redis</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.session</groupId>
+			<artifactId>spring-session-jdbc</artifactId>
+			<scope>runtime</scope>
+		</dependency>
 		<!-- yml processing -->
 		<dependency>
 			<groupId>org.yaml</groupId>

apollo-portal/src/main/resources/application.yml

@@ -23,7 +23,8 @@ spring:
       hibernate:
         query:
           plan_cache_max_size: 192 # limit query plan cache max size
-
+  session:
+    store-type: none
 server:
   port: 8070
   compression:

apollo-portal/src/test/resources/application.properties

@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+spring.session.store-type=none
 spring.datasource.url = jdbc:h2:mem:~/apolloportaldb;mode=mysql;DB_CLOSE_ON_EXIT=FALSE;DB_CLOSE_DELAY=-1
 spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
 spring.jpa.properties.hibernate.show_sql=false

docs/zh/_sidebar.md

@@ -18,6 +18,7 @@
     - [Intellij Code Style](https://github.com/ctripcorp/apollo/blob/master/apollo-buildtools/style/intellij-java-google-style.xml)
   - [Portal实现用户登录功能](zh/development/portal-how-to-implement-user-login-function.md)
   - [Portal接入邮件服务](zh/development/portal-how-to-enable-email-service.md)
+  - [Portal 共享 session](zh/development/portal-how-to-enable-session-store.md)
   - [Portal启用webhook通知](zh/development/portal-how-to-enable-webhook-notification.md)
 
 - 使用文档

docs/zh/development/apollo-development-guide.md

@@ -239,3 +239,7 @@ Apollo客户端针对不同的环境会从不同的服务器获取配置，所
 ## 3.2 Portal 接入邮件服务
 
 请参考[Portal 接入邮件服务](zh/development/portal-how-to-enable-email-service)
+
+## 3.3 Portal 集群部署时共享 session
+
+请参考[Portal 共享 session](zh/development/portal-how-to-enable-session-store)

docs/zh/development/portal-how-to-enable-session-store.md

+从 1.9.0 版本开始，apollo-portal 增加了 session 共享支持，从而可以在集群部署 apollo-portal 时实现 session 共享。
+
+## 使用方式
+
+### 1. 不启用 session 共享(默认)
+默认配置即为不启用
+所以清除 session 共享相关的配置即可，需要清理的配置如下  
+外置配置文件(properties/yml)里面的 `spring.session.store-type` 配置项  
+环境变量里面的 `SPRING_SESSION_STORE_TYPE`  
+System Property 里面的 `spring.session.store-type`  
+
+### 2. 基于 Redis 的 session 共享
+有以下几种方式设置，按照优先级从高到低分别为：
+注：redis 也支持集群、哨兵模式，配置方式为标准的 `Spring Data Redis` 模式(以 `spring.redis` 开头的配置项)，具体方式请自行研究 `Spring Data Redis` 相关文档或咨询 `Spring Data` Group
+#### 2.1 System Property
+```bash
+-Dspring.session.store-type=redis
+-Dspring.redis.host=xxx
+-Dspring.redis.port=xxx
+-Dspring.redis.username=xxx
+-Dspring.redis.password=xxx
+
+```
+
+#### 2.2 环境变量
+```bash
+export SPRING_SESSION_STORE_TYPE="redis"
+export SPRING_REDIS_HOST="xxx"
+export SPRING_REDIS_PORT="xxx"
+export SPRING_REDIS_USERNAME="xxx"
+export SPRING_REDIS_PASSWORD="xxx"
+
+```
+
+#### 2.3 外部配置文件
+例如 `config/application-github.properties`
+```properties
+spring.session.store-type=redis
+spring.redis.host=xxx
+spring.redis.port=xxx
+spring.redis.username=xxx
+spring.redis.password=xxx
+
+```
+
+### 3. 基于 JDBC 的 session 共享
+有以下几种方式设置，按照优先级从高到低分别为：
+#### 3.1 System Property
+```bash
+-Dspring.session.store-type=jdbc
+-Dspring.datasource.url=xxx
+-Dspring.datasource.username=xxx
+-Dspring.datasource.password=xxx
+
+```
+
+#### 3.2 环境变量
+```bash
+export SPRING_SESSION_STORE_TYPE="jdbc"
+export SPRING_DATASOURCE_URL="xxx"
+export SPRING_DATASOURCE_USERNAME="xxx"
+export SPRING_DATASOURCE_PASSWORD="xxx"
+
+```
+
+#### 3.3 外部配置文件
+例如 `config/application-github.properties`
+```properties
+spring.session.store-type=jdbc
+spring.datasource.url=xxx
+spring.datasource.username=xxx
+spring.datasource.password=xxx
+
+```
+
+#### 关于初始化 session 的表
+##### 1. apollo-portal 应用自动建表
+给 apollo-portal 准备好具有 DDL 权限的数据库帐号。  
+然后首次启动时配置 `spring.session.jdbc.initialize-schema=always`(System Property，环境变量，外部配置文件均可) 即可，
+一共会自动创建两张表 `spring_session` 和 `spring_session_attributes`。  
+创建完成后配置 `spring.session.jdbc.initialize-schema=never`，否则每次启动都会尝试去建表，会刷一大堆错误日志(无实际影响)。
+
+##### 2. 临时部署建表应用进行自动建表
+准备好一个给 apollo-portal 使用的普通权限的数据库帐号，以及一个给建表临时应用使用的具有 DDL 权限的数据库帐号。 
+部署一个 apollo-portal 作为临时建表应用，配置如下
+```properties
+spring.session.store-type=jdbc
+spring.session.jdbc.initialize-schema=always
+spring.datasource.url=xxx
+spring.datasource.username={{DDL权限帐号}}
+spring.datasource.password={{DDL权限帐号的密码}}
+
+```
+
+应用启动完成后检查数据库里 `spring_session` 和 `spring_session_attributes` 这两张表是否创建完成，创建完成即可停止并删除该临时应用，使用普通数据库帐号配置部署 apollo-portal 集群即可。  
+
+##### 3. 手动建表
+可以选择手动在数据库执行建表语句，sql 脚本由 [spring-session](https://github.com/spring-projects/spring-session) 提供  
+具体的建表 sql 如下，请根据所使用的数据库选择对应的 sql 脚本  
+[db2.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-db2.sql)  
+[derby.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-derby.sql)  
+[h2.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-h2.sql)  
+[hsqldb.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-hsqldb.sql)  
+[mysql.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-mysql.sql)  
+[oracle.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-oracle.sql)  
+[postgresql.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-postgresql.sql)  
+[sqlite.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-sqlite.sql)  
+[sqlserver.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-sqlserver.sql)  
+[sybase.sql](https://github.com/spring-projects/spring-session/blob/faee8f1bdb8822a5653a81eba838dddf224d92d6/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-sybase.sql)