总体架构
- 用户在Portal操作配置发布
- Portal调用Admin Service的接口操作发布
- Admin Service发布配置后,发送ReleaseMessage给各个Config Service
- Config Service收到ReleaseMessage后,通知对应的客户端
实现原理 上图简要描述了Apollo客户端的实现原理:
- 客户端和服务端保持了一个长连接,从而能第一时间获得配置更新的推送。(通过Http Long Polling实现)
- 客户端还会定时从Apollo配置中心服务端拉取应用的最新配置。 这是一个fallback机制,为了防止推送机制失效导致配置不更新 客户端定时拉取会上报本地版本,所以一般情况下,对于定时拉取的操作,服务端都会返回304 - Not Modified 定时频率默认为每5分钟拉取一次,客户端也可以通过在运行时指定System Property: apollo.refreshInterval来覆盖,单位为分钟。
- 客户端从Apollo配置中心服务端获取到应用的最新配置后,会保存在内存中
- 客户端会把从服务端获取到的配置在本地文件系统缓存一份 在遇到服务不可用,或网络不通的时候,依然能从本地恢复配置
- 应用程序可以从Apollo客户端获取最新的配置、订阅配置更新通知
MySQL安装 版本要求:5.6.5+ 主机:10.2.42.28 清除mysql依赖包
- rpm -qa | grep mysql
- yum remove mysql-libs
安装mysql5.7:安装顺序:common→libs→client→server
- rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm
- rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm
- rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm
- rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm
安装成功界面:
- [root@DCA-APP-COM-apollo02 mysql]# rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm warning: mysql-community-common-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-common-5.7.26-1.e################################# [100%] [root@DCA-APP-COM-apollo02 mysql]# rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm warning: mysql-community-libs-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-libs-5.7.26-1.el7################################# [100%] [root@DCA-APP-COM-apollo02 mysql]# rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm warning: mysql-community-client-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-client-5.7.26.1.e################################# [100%] [root@DCA-APP-COM-apollo02 mysql]# rpm -ivh mysql-community-server-5.7.26.1.el7.x86_64.rpm warning: mysql-community-server-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-server-5.7.26.1.e################################# [100%]
启动mysql:
- service mysqld start
mysql初始化:
-
[root@DCA-APP-COM-apollo02 mysql]# grep 'temporary password' /var/log/mysqld.log
-
2019-07-17T14:10:02.559365Z 1 [Note] A temporary password is generated for root@localhost: %hNW)P3Ly,8v
-
[root@DCA-APP-COM-apollo02 mysql]# mysql -uroot -p
-
Enter password:
-
Welcome to the MySQL monitor. Commands end with ; or \g.
-
Your MySQL connection id is 2
-
Server version: 5.7.26
-
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
-
Oracle is a registered trademark of Oracle Corporation and/or its
-
affiliates. Other names may be trademarks of their respective
-
owners.
-
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
-
更改密码长度
-
mysql> set global validate_password_length=1;
-
Query OK, 0 rows affected (0.00 sec)
-
更改密码强度
-
mysql> set global validate_password_policy=0;
-
Query OK, 0 rows affected (0.00 sec)
-
mysql> set password for root@localhost=password('123456');
-
Query OK, 0 rows affected, 1 warning (0.00 sec)
-
mysql> grant all privileges on . to 'root' @'%' identified by '123456';
-
Query OK, 0 rows affected, 1 warning (0.00 sec)
-
mysql> flush privileges;
-
Query OK, 0 rows affected (0.00 sec)
Apollo数据库创建:SQL在官网自行下载:
- mysql> source apolloconfigdb.sql;
- mysql> source apolloportaldb.sql;
msyql连接用户授权:
-
mysql> grant all privileges on ApolloConfigDB.* to Apollo@'%' IDENTIFIED BY 'Apollo' ;
-
Query OK, 0 rows affected, 1 warning (0.00 sec)
-
mysql> grant all privileges on ApolloPortalDB.* to Apollo@'%';
-
Query OK, 0 rows affected (0.00 sec)
-
mysql> flush privileges;
-
Query OK, 0 rows affected (0.00 sec)
数据库配置更改:
ApolloPortalDB:
ApolloConfigDB:
Apollo安装 官方地址:https://github.com/ctripcorp/apollo 本次测试版本为:0.10.2 下载地址:https://github.com/ctripcorp/apollo/releases/tag/v0.10.2
- apollo-adminservice-0.10.2-github.zip
- apollo-configservice-0.10.2-github.zip
- apollo-portal-0.10.2-github.zip
apollo-config 主机:10.2.42.27 创建apollo用户:
- groupadd apollo && useradd -g apollo apollo
配置configserver:
- cd /home/apollo/
- mkdir apollo-config
- unzip apollo-configservice-0.10.2-github.zip -d apollo-config
ApolloconfigDB配置:
-
vim apollo-config/config/application-github.properties
-
DataSource
-
spring.datasource.url = jdbc:mysql://10.2.42.28:3306/ApolloConfigDB?characterEncoding=utf8
-
spring.datasource.username = Apollo
-
spring.datasource.password = Apollo
日志路径及JVM参数修改:部分配置,后面的配置不需要修改
- vim apollo-config/scripts/startup.sh
-
修改日志路径
- LOG_DIR=/home/apollo/logs/100003171
-
默认端口
- SERVER_PORT=8080
-
默认注释看需求打开
-
Adjust memory settings if necessary
- export JAVA_OPTS="-Xms6144m -Xmx6144m -Xss256k -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=384m -XX:NewSize=4096m -XX:MaxNewSize=4096m -XX:SurvivorRatio=8"
启动Apollo-configservice:
-
cd /home/apollo/
-
chown -R apollo.apollo *
-
su apollo
-
./apollo-config/scripts/startup.sh
启动成功:
- Thu Jul 18 15:06:53 CST 2019 ==== Starting ====
- Started [53700]
- Waiting for server startup......
- Thu Jul 18 15:07:24 CST 2019 Server started in 30 seconds!
apollo-admin 主机:10.2.42.28
- groupadd apollo && useradd -g apollo apollo
- cd /home/apollo/
- mkdir {apollo-admin,apollo-portal}
- unzip apollo-adminservice-0.10.2-github.zip -d apollo-admin
- unzip apollo-portal-0.10.2-github.zip -d apollo-portal
ApolloconfigDB配置:
-
cd apollo-admin
-
vim config/application-github.properties
-
DataSource
-
spring.datasource.url = jdbc:mysql://10.2.42.28:3306/ApolloConfigDB?characterEncoding=utf8
-
spring.datasource.username = Apollo
-
spring.datasource.password = Apollo
日志路径及JVM参数配置:部分配置,后面的配置不需要修改
-
vim scripts/startup.sh
-
#!/bin/bash
-
SERVICE_NAME=apollo-adminservice
-
Adjust log dir if necessary
-
LOG_DIR=/home/apollo/logs/100003172
-
Adjust server port if necessary
-
SERVER_PORT=8090
-
Adjust memory settings if necessary
-
export JAVA_OPTS="-Xms2560m -Xmx2560m -Xss256k -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=384m -XX:NewSize=1536m -XX:MaxNewSize=1536m -XX:SurvivorRatio=8"
启动apollo-admin:
-
cd /home/apollo/
-
chown -R apollo.apollo *
-
su apollo
-
./scripts/startup.sh
-
Thu Jul 18 16:17:32 CST 2019 ==== Starting ====
-
Started [56497]
-
Waiting for server startup......
-
Thu Jul 18 16:18:02 CST 2019 Server started in 30 seconds!
apollo-portal 主机:10.2.42.28 apolloportlDB配置:
-
cd /home/apollo/apollo-portal
-
vim config/application-github.properties
-
DataSource
-
spring.datasource.url = jdbc:mysql://10.2.42.28:3306/ApolloPortalDB?characterEncoding=utf8
-
spring.datasource.username = Apollo
-
spring.datasource.password = Apollo
configservice配置:一套portal可以管理多个configservice,也可以直接配置在startup.sh脚本里
- vim config/apollo-env.properties
- local.meta=http://localhost:8080
- dev.meta=http://10.2.42.27:8080
- fat.meta=http://10.2.42.27:8080
- uat.meta=${lpt_meta}
- lpt.meta=${lpt_meta}
- pro.meta=${lpt_meta} 日志路径及JVM参数修改:部分配置,后面的配置不需要修改
- vim scripts/startup.sh
- #!/bin/bash
- SERVICE_NAME=apollo-portal
-
Adjust log dir if necessary
- LOG_DIR=/home/apollo/logs/100003173
-
Adjust server port if necessary
- SERVER_PORT=8070
-
Adjust memory settings if necessary
- export JAVA_OPTS="-Xms2560m -Xmx2560m -Xss256k -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=384m -XX:NewSize=1536m -XX:MaxNewSize=1536m -XX:SurvivorRatio=8" apollo-portal启动:
- su apollo
- ./scripts/startup.sh
- Thu Jul 18 16:25:55 CST 2019 ==== Starting ====
- Started [56773]
- Waiting for server startup...
- Thu Jul 18 16:26:10 CST 2019 Server started in 15 seconds!
Apollo使用 服务端页面展示:10.2.42.27:8080
配置中心页面展示:10.2.42.28:8070 apollo/admin
项目创建: