Docker配置分布式事务Seata并注册到Nacos服务中心

Docker常用基础命令

docker ps；查询当前服务器的服务
docker images；查看服务下载的镜像
docker ps -a；查看所有的服务，包含未开启的服务
docker rm 服务ID；在做删除服务的时候使用
docker rmi -f 镜像ID；删除所有相关的文件
docker logs；查看日志
docker logs 容器ID；查看容器日志
docker logs -t -n 5 容器ID；通过容器ID显示时间戳

配置seata分布式事务

docker search seata；查看所有相关的依赖版本

docker pull seataio/seata-server：指定版本

在下载版本之后不要直接启动，还需要配置我们的配置文件

file.conf

注册文件

registry.conf

在docker上新增文件，可以直接新建目录data，看个人喜好命名

mkdir -p /data/seata/seata-config

在seata-config目录下 touch file.conf；数据库配置文件 touch registry.conf；注册文件

file.conf需修改数据库连接IP和账号密码

##transaction log store, only used in seata-server
store {
  ## store mode: file、db、redis
  mode = "db" ## 原来为file
  ## file store property
  file {
    ## store location dir
    dir = "sessionStore"
    # branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
    maxBranchSessionSize = 16384
    # globe session size , if exceeded throws exceptions
    maxGlobalSessionSize = 512
    # file buffer size , if exceeded allocate new buffer
    fileWriteBufferCacheSize = 16384
    # when recover batch read size
    sessionReloadReadSize = 100
    # async, sync
    flushDiskMode = async
  }
  ##database store property
db {
    datasource = "druid"
    ## mysql/oracle/postgresql/h2/oceanbase etc.
    dbType = "mysql"
    driverClassName = "com.mysql.cj.jdbc.Driver"
    url = "jdbc:mysql://127.0.0.1:3306/seata?serverTimezone=GMT%2B8"
    user = "root"
    password = "123456"
    minConn = 5
    maxConn = 30
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }

regiistry.conf需修改本地IP或者服务器的IP，下面的路径只是一种写法，仅供参考

##transaction log store, only used in seata-server
store {
  ## store mode: file、db、redis
  mode = "db" ## 原来为file
  
  ## file store property
  file {
    ## store location dir
    dir = "sessionStore"
    maxBranchSessionSize = 16384
    # globe session size , if exceeded throws exceptions
    maxGlobalSessionSize = 512
    # file buffer size , if exceeded allocate new buffer
    fileWriteBufferCacheSize = 16384
    # when recover batch read size
#服务,将type从file改成nacos,将seata服务配置进nacos
registry {
  type = "nacos"
  nacos {
    application = "seata-server"
    serverAddr = "127.0.0.1:8848"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
}
config {
  # file、nacos 、apollo、zk、consul、etcd3
##注意路径，这只是一种配置写法
 type = "file"
 file {
    name = "file:/data/seata/seata-config/file.conf"
  }
}

数据库文件获取

https://github.com/seata/seata/blob/develop/script/server/db/mysql.sql

在seata安装配置好之后就可以将seata配置注册到nacos服务中心，这里需要注意的是我们需要新建两个配置文件，分别是

touch config.txt
touch nacos-config.sh

其中config.txt与nacos-config.sh不能存放在同一个目录，不然会出现找不到配置文件的问题，需要将config.txt放在nacos-config.sh的上一级目录。

config.txt需修改mysql信息或者服务器的IP

transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableClientBatchSendRequest=false
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
service.vgroupMapping.my_test_tx_group=default
service.default.grouplist=127.0.0.1:8091
service.enableDegrade=false
service.disableGlobalTransaction=false
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=false
client.rm.sqlParserType=druid
client.rm.reportSuccessEnable=false
client.rm.sagaBranchRegisterEnable=false
client.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
store.mode=db
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
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.cj.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=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.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
store.redis.host=127.0.0.1
store.redis.port=6379
store.redis.maxConn=10
store.redis.minConn=1
store.redis.database=0
store.redis.password=null
store.redis.queryLimit=100
server.recovery.committingRetryPeriod=1000
server.recovery.asynCommittingRetryPeriod=1000
server.recovery.rollbackingRetryPeriod=1000
server.recovery.timeoutRetryPeriod=1000
server.maxCommitRetryTimeout=-1
server.maxRollbackRetryTimeout=-1
server.rollbackRetryTimeoutUnlockEnable=false
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.log.exceptionRate=100
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898

nacos-config.sh无需修改

#!/usr/bin/env bash 
while getopts ":h:p:g:t:u:w:" opt
do
  case $opt in
  h)
    host=$OPTARG
    ;;
  p)
    port=$OPTARG
    ;;
  g)
    group=$OPTARG
    ;;
  t)
    tenant=$OPTARG
    ;;
  u)
    username=$OPTARG
    ;;
  w)
    password=$OPTARG
    ;;
  ?)
    echo " USAGE OPTION: $0 [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password] "
    exit 1
    ;;
  esac
done
 
if [[ -z ${host} ]]; then
    host=localhost
fi
if [[ -z ${port} ]]; then
    port=8848
fi
if [[ -z ${group} ]]; then
    group="SEATA_GROUP"
fi
if [[ -z ${tenant} ]]; then
    tenant=""
fi
if [[ -z ${username} ]]; then
    username=""
fi
if [[ -z ${password} ]]; then
    password=""
fi
 
nacosAddr=$host:$port
contentType="content-type:application/json;charset=UTF-8"
 
echo "set nacosAddr=$nacosAddr"
echo "set group=$group"
 
failCount=0
tempLog=$(mktemp -u)
function addConfig() {
  curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$1&group=$group&content=$2&tenant=$tenant&username=$username&password=$password" >"${tempLog}" 2>/dev/null
  if [[ -z $(cat "${tempLog}") ]]; then
    echo " Please check the cluster status. "
    exit 1
  fi
  if [[ $(cat "${tempLog}") =~ "true" ]]; then
    echo "Set $1=$2 successfully "
  else
    echo "Set $1=$2 failure "
    (( failCount++ ))
  fi
}
 
count=0
for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do
  (( count++ ))
	key=${line%%=*}
    value=${line#*=}
	addConfig "${key}" "${value}"
done
 
echo "========================================================================="
echo " Complete initialization parameters,  total-count:$count ,  failure-count:$failCount "
echo "========================================================================="
 
if [[ ${failCount} -eq 0 ]]; then
	echo " Init nacos config finished, please start seata-server. "
else
	echo " init nacos config fail. "
fi

在配置好所有的信息之后执行

sh nacos-config.sh -h 127.0.0.1 -p 8848 -g SEATA_GROUP -u nacos -w
nacos ### 127.0.0.1 为nacos的服务器地址

最后启动seata

docker run -d \
--name seata-server \
-v /data/seata/seata-config/registry.conf:/seata-server/resources/registry.conf \
-v /data/seata/seata-config/file.conf:/seata-server/resources/file.conf \
-p 8091:8091 \
-e SEATA_IP=112.74.84.132 \
seataio/seata-server:1.4.2

登陆nacos，http://服务器或本地IP:8848/nacos/
查看configurations会看到许多配置文件，同时在serviceManagement看到serviceList查看当前上线服务，至此，整个seata搭建流程结束，有不好的地方还请各位大佬多多指教。
本文些许服务注册配置借鉴，仅作于个人学习历程记录
https://blog.csdn.net/qq_35893120/article/details/119250869