一、拉取seata

docker pull seataio/seata-server

二、创建挂载配置文件夹

sudo mkdir -p /mydata/seata/config/

三、启动seata容器

docker run -d -p 8091:8091 -p 7091:7091  --name seata-server seataio/seata-server

三、拷贝配置文件到宿主机目录

docker cp seata-server:/seata-server/resources/. /mydata/seata/config/

四、删除容器（之前的步骤就是为了要配置文件，不是正式安装）

docker rm -f seata-server

五、在nocas配置中心添加配置data-id为seataServer.properties
以下配置信息，可以在mydata/seata/config下的readme.rm里面有链接引导获取conf.txt里面复制过来，修改数据库链接地址，还有mode类型为db（数据库模式）
store.mode=db
store.lock.mode=db
store.session.mode=db
注意：=后面不能为空，不然格式会错误，store.publicKey=例如这里给个0000都可以。

   #For details about configuration items, see https://seata.io/zh-cn/docs/user/configurations.html
#Transport configuration, for client and server
transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableTmClientBatchSendRequest=false
transport.enableRmClientBatchSendRequest=true
transport.enableTcServerBatchSendResponse=false
transport.rpcRmRequestTimeout=30000
transport.rpcTmRequestTimeout=30000
transport.rpcTcRequestTimeout=30000
transport.threadFactory.bossThreadPrefix=NettyBoss
transport.threadFactory.workerThreadPrefix=NettyServerNIOWorker
transport.threadFactory.serverExecutorThreadPrefix=NettyServerBizHandler
transport.threadFactory.shareBossWorker=false
transport.threadFactory.clientSelectorThreadPrefix=NettyClientSelector
transport.threadFactory.clientSelectorThreadSize=1
transport.threadFactory.clientWorkerThreadPrefix=NettyClientWorkerThread
transport.threadFactory.bossThreadSize=1
transport.threadFactory.workerThreadSize=default
transport.shutdown.wait=3
transport.serialization=seata
transport.compressor=none

#Transaction routing rules configuration, only for the client
service.vgroupMapping.default_tx_group=default
#If you use a registry, you can ignore it
service.default.grouplist=127.0.0.1:8091
service.enableDegrade=false
service.disableGlobalTransaction=false

#Transaction rule configuration, only for the client
client.rm.asyncCommitBufferLimit=10000
client.rm.lock.retryInterval=10
client.rm.lock.retryTimes=30
client.rm.lock.retryPolicyBranchRollbackOnConflict=true
client.rm.reportRetryCount=5
client.rm.tableMetaCheckEnable=true
client.rm.tableMetaCheckerInterval=60000
client.rm.sqlParserType=druid
client.rm.reportSuccessEnable=false
client.rm.sagaBranchRegisterEnable=false
client.rm.sagaJsonParser=fastjson
client.rm.tccActionInterceptorOrder=-2147482648
client.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
client.tm.interceptorOrder=-2147482648
client.undo.dataValidation=true
client.undo.logSerialization=jackson
client.undo.onlyCareUpdateColumns=true
server.undo.logSaveDays=7
server.undo.logDeletePeriod=86400000
client.undo.logTable=undo_log
client.undo.compress.enable=true
client.undo.compress.type=zip
client.undo.compress.threshold=64k
#For TCC transaction mode
tcc.fence.logTableName=tcc_fence_log
tcc.fence.cleanPeriod=1h

#Log rule configuration, for client and server
log.exceptionRate=100

#Transaction storage configuration, only for the server. The file, db, and redis configuration values are optional.
store.mode=db
store.lock.mode=db
store.session.mode=db
#Used for password encryption
store.publicKey=000000

#If `store.mode,store.lock.mode,store.session.mode` are not equal to `file`, you can remove the configuration block.
store.file.dir=file_store/data
store.file.maxBranchSessionSize=16384
store.file.maxGlobalSessionSize=512
store.file.fileWriteBufferCacheSize=16384
store.file.flushDiskMode=async
store.file.sessionReloadReadSize=100

#These configurations are required if the `store mode` is `db`. If `store.mode,store.lock.mode,store.session.mode` are not equal to `db`, you can remove the configuration block.
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://192.168.0.6:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=123456
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.distributedLockTable=distributed_lock
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000

#These configurations are required if the `store mode` is `redis`. If `store.mode,store.lock.mode,store.session.mode` are not equal to `redis`, you can remove the configuration block.
store.redis.mode=single
store.redis.single.host=127.0.0.1
store.redis.single.port=6379
store.redis.sentinel.masterName=123
store.redis.sentinel.sentinelHosts=000000
store.redis.sentinel.sentinelPassword=000000
store.redis.maxConn=10
store.redis.minConn=1
store.redis.maxTotal=100
store.redis.database=0
store.redis.password=000000
store.redis.queryLimit=100

#Transaction rule configuration, only for the server
server.recovery.committingRetryPeriod=1000
server.recovery.asynCommittingRetryPeriod=1000
server.recovery.rollbackingRetryPeriod=1000
server.recovery.timeoutRetryPeriod=1000
server.maxCommitRetryTimeout=-1
server.maxRollbackRetryTimeout=-1
server.rollbackFailedUnlockEnable=false
server.distributedLockExpireTime=10000
server.xaerNotaRetryTimeout=60000
server.session.branchAsyncQueueSize=5000
server.session.enableBranchAsyncRemove=false
server.enableParallelRequestHandle=false

#Metrics configuration, only for the server
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898

六、运行seata容器
这里设置SEATA_IP=192.168.0.5 的目的：如果不设置，有可能是容器内部ip，不是宿主ip，有可能nacos服务找不到，所以要指定。

docker run --name seata-server \
--privileged=true \
--restart=always \
-p 8091:8091 \
-p 7091:7091 \
-e STORE_MODE=db \
-e SEATA_IP=192.168.0.5 \
-e SEATA_PORT=8091 \
-v /mydata/seata/config/application.yml:/seata-server/resources/application.yml \
-d seataio/seata-server

七、Seata 配置文件(application.yml)
这里的配置模板信息，也是从conf中的readme.rm获取链接找到。
这里把ip改成自己的nacos服务中心的，mode: db设置成数据库模式。

#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

server:
  port: 7091

spring:
  application:
    name: seata-server

logging:
  config: classpath:logback-spring.xml
  file:
    path: ${log.home:${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
    nacos:
      server-addr: 192.168.0.5:8848
      namespace:
      group: SEATA_GROUP
      context-path: /nacos
      data-id: seataServer.properties
  registry:
    # support: nacos, eureka, redis, zk, consul, etcd3, sofa
    type: nacos
    nacos:
      application: seata-server
      server-addr: 192.168.0.5:8848
      group: SEATA_GROUP
      namespace:
      cluster: default
      context-path: /nacos
  store:
    # support: file 、 db 、 redis
    mode: db
#  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,/**/*.jpeg,/**/*.ico,/api/v1/auth/login,/health,/error

八、客户端项目里面的配置文件加seata的配置，要对应和seata服务的yml和配置中心的一致。一定要记得配置项目yml，不然，运行不通过。
这里username和userpass新版本，没有就删了，不然报错，namespace是public也删了，不要填public。

# seata配置
seata:
  enabled: true
  # Seata 应用编号，默认为 ${spring.application.name}
  application-id: ${spring.application.name}

  # 关闭自动代理
  enable-auto-data-source-proxy: false
  # 服务配置项
  service:
    # 虚拟组和分组的映射
    vgroupMapping:
      default-tx-group: default
  config:
    type: nacos
    nacos:
      server-addr: 192.168.0.5:8848
      #namespace:
      #可选
      # username: nacos
      #可选
      # password: nacos
      # 这是默认值
      # data-id: seata.properties
      # 这是默认值
      group: SEATA_GROUP
      data-id: seataServer.properties
  registry:
    type: nacos
    nacos:
      server-addr: 192.168.0.5:8848
      #namespace:
      #可选
      #  username: nacos
      #可选
      # password: nacos
      #可选
      application: seata-server
      #默认值和 config 的 SEATA_GROUP 不一样
      group: SEATA_GROUP
      # 可选  默认
      cluster: default

九、项目中加入pom依赖

   <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
    </dependency>

十、在用到远程事务的方法上面加注解 @GlobalTransactional