seata(6):nacos

   seata除了使用文件作为默认的配置中心和服务发现外，还可以使用nacos，我们学习下如何配置：首先启动mysql、nacos、seata，然后copy默认配置进行修改

# docker run -d --name nacos -p 8848:8848 -e MODE=standalone -e MYSQL_MASTER_SERVICE_HOST=你的mysql所在ip -e MYSQL_MASTER_SERVICE_DB_NAME=nacos -e MYSQL_MASTER_SERVICE_USER=root -e MYSQL_MASTER_SERVICE_PASSWORD=mysql密码 -e MYSQL_SLAVE_SERVICE_HOST=你的mysql所在ip -e SPRING_DATASOURCE_PLATFORM=mysql -e MYSQL_DATABASE_NUM=1 nacos/nacos-server:latest


# docker run -d --name seata -p 8091:8091 -e SEATA_IP=你想指定的ip -e SEATA_PORT=8091 seataio/seata-server:1.4.2




version: "3.1"
services:
mysql:
image: mysql:5.7
container_name: mysql
environment:
- MYSQL_ROOT_PASSWORD=123456
command: --default-authentication-plugin=mysql_native_password --default-time-zone='+08:00'
volumes:
- ./mysql:/docker-entrypoint-initdb.d
- ./mysql/mysqld.cnf:/etc/mysql/mysql.conf.d/mysqld.cnf
ports:
- "3306:3306"
extra_hosts:
- host.docker.internal:host-gateway


seata-server:
image: seataio/seata-server:1.5.2
ports:
- "7091:7091"
- "8091:8091"
environment:
- STORE_MODE=db
# 以SEATA_IP作为host注册seata server
# - SEATA_IP=host.docker.internal
# - SEATA_PORT=8091
volumes:
# - "/usr/share/zoneinfo/Asia/Shanghai:/etc/localtime" #设置系统时区
# - "/usr/share/zoneinfo/Asia/Shanghai:/etc/timezone" #设置时区
# 假设我们通过docker cp命令把资源文件拷贝到相对路径`./seata-server/resources`中
# 如有问题，请阅读上面的[注意事项]以及[使用自定义配置文件]
- /Users/xiazemin//resources:/seata-server/resources
- /Users/xiazemin/logs:/root/logs/seata/
depends_on:
- mysql
      - nacos
extra_hosts:
- host.docker.internal:host-gateway
nacos:
image: nacos/nacos-server:2.0.2
ports:
- "8848:8848"
environment:
- MODE=standalone
- MYSQL_MASTER_SERVICE_HOST=host.docker.internal
- MYSQL_MASTER_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_HOST=host.docker.internal
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_MASTER_SERVICE_USER=root
- MYSQL_MASTER_SERVICE_PASSWORD=123456
- MYSQL_SLAVE_SERVICE_HOST=host.docker.internal
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_DATABASE_NUM=1
- NACOS_AUTH_SYSTEM_TYPE=nacos
volumes:
- /Users/xiazemin/nacos/conf:/home/nacos/conf
     - /Users/xiazemin/nacos/data:/home/nacos/data
depends_on:
- mysql
extra_hosts:
- host.docker.internal:host-gateway

然后，首先修改nacos的配置文件/nacos/conf/application.properties

# spring
server.servlet.contextPath=${SERVER_SERVLET_CONTEXTPATH:/nacos}
server.contextPath=/nacos
server.port=${NACOS_APPLICATION_PORT:8848}
spring.datasource.platform=${SPRING_DATASOURCE_PLATFORM:""}
nacos.cmdb.dumpTaskInterval=3600
nacos.cmdb.eventTaskInterval=10
nacos.cmdb.labelTaskInterval=300
nacos.cmdb.loadDataAtStart=false
db.num=${MYSQL_DATABASE_NUM:1}
db.url.0=jdbc:mysql://${MYSQL_SERVICE_HOST}:${MYSQL_SERVICE_PORT:3306}/${MYSQL_SERVICE_DB_NAME}?${MYSQL_SERVICE_DB_PARAM:characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false}&serverTimezone=UTC
db.url.1=jdbc:mysql://${MYSQL_SERVICE_HOST}:${MYSQL_SERVICE_PORT:3306}/${MYSQL_SERVICE_DB_NAME}?${MYSQL_SERVICE_DB_PARAM:characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false}&serverTimezone=UTC
db.user=${MYSQL_SERVICE_USER}
db.password=${MYSQL_SERVICE_PASSWORD}
### The auth system to use, currently only 'nacos' is supported:
nacos.core.auth.system.type=${NACOS_AUTH_SYSTEM_TYPE:nacos}




### The token expiration in seconds:
nacos.core.auth.default.token.expire.seconds=${NACOS_AUTH_TOKEN_EXPIRE_SECONDS:18000}


### The default token:
nacos.core.auth.default.token.secret.key=${NACOS_AUTH_TOKEN:SecretKey012345678901234567890123456789012345678901234567890123456789}


### Turn on/off caching of auth information. By turning on this switch, the update of auth information would have a 15 seconds delay.
nacos.core.auth.caching.enabled=${NACOS_AUTH_CACHE_ENABLE:false}
nacos.core.auth.enable.userAgentAuthWhite=${NACOS_AUTH_USER_AGENT_AUTH_WHITE_ENABLE:false}
nacos.core.auth.server.identity.key=${NACOS_AUTH_IDENTITY_KEY:serverIdentity}
nacos.core.auth.server.identity.value=${NACOS_AUTH_IDENTITY_VALUE:security}
server.tomcat.accesslog.enabled=${TOMCAT_ACCESSLOG_ENABLED:false}
server.tomcat.accesslog.pattern=%h %l %u %t "%r" %s %b %D
# default current work dir
server.tomcat.basedir=
## spring security config
### turn off security
nacos.security.ignore.urls=${NACOS_SECURITY_IGNORE_URLS:/,/error,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/v1/auth/**,/v1/console/health/**,/actuator/**,/v1/console/server/**}
# metrics for elastic search
management.metrics.export.elastic.enabled=false
management.metrics.export.influx.enabled=false


nacos.naming.distro.taskDispatchThreadCount=10
nacos.naming.distro.taskDispatchPeriod=200
nacos.naming.distro.batchSyncKeyCount=1000
nacos.naming.distro.initDataRatio=0.9
nacos.naming.distro.syncRetryDelay=5000
nacos.naming.data.warmup=true


service.vgroupMapping.default_tx_group=default
### Security ###
nacos.core.auth.enabled=true
nacos.core.auth.username=nacos
nacos.core.auth.password=nacos



然后修改seata的配置文件/resources/application.yml

server:
port: 7091


spring:
application:
name: seata-server


logging:
config: classpath:logback-spring.xml
file:
path: ${user.home}/logs/seata
extend:
logstash-appender:
destination: 127.0.0.1:4560
kafka-appender:
bootstrap-servers: 127.0.0.1:9092
topic: logback_to_logstash


console:
user:
username: seata
password: seata


seata:
config:
# support: nacos, consul, apollo, zk, etcd3
type: nacos #file
nacos:
server-addr: host.docker.internal:8848
namespace:
group: SEATA_GROUP
username: nacos
password: nacos
##if use MSE Nacos with auth, mutex with username/password attribute
#access-key: ""
#secret-key: ""
data-id: seataServer.properties
registry:
# support: nacos, eureka, redis, zk, consul, etcd3, sofa
type: nacos #file
nacos:
application: seata-server
server-addr: host.docker.internal:8848
group: SEATA_GROUP
namespace:
cluster: default
username: nacos
password: nacos
##if use MSE Nacos with auth, mutex with username/password attribute
#access-key: ""
#secret-key: ""
store:
# support: file 、 db 、 redis
mode: db
db:
datasource: druid
dbType: mysql
# 需要根据mysql的版本调整driverClassName
# mysql8及以上版本对应的driver：com.mysql.cj.jdbc.Driver
# mysql8以下版本的driver：com.mysql.jdbc.Driver
driverClassName: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://host.docker.internal:3306/seata_server?useUnicode=true&characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false
user: root
password: 123456
min-conn: 5
max-conn: 100
global-table: global_table
branch-table: branch_table
lock-table: lock_table
distributed-lock-table: distributed_lock
query-limit: 100
max-wait: 5000

# server:
# service-port: 8091 #If not configured, the default is '${server.port} + 1000'
security:
secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
tokenValidityInMilliseconds: 1800000
ignore:
urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login

尝试启动

% docker compose -f ./seata/exp4/docker-compose.yaml up

查看效果，首先登录nacos的控制端

http://127.0.0.1:8848/nacos/#/login，输入用户名：nacos，密码：nacos可以看到下面界面

至此配置中心启动成功