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dockernacos教程(Docker+nacos+seata1.3.0安装与使用配置教程)

更多 时间:2021-09-30 00:02:45 类别:服务器 浏览量:2726

dockernacos教程

Docker+nacos+seata1.3.0安装与使用配置教程

在此之前我搞了一天,虽然seata好用,用起来也超级简单,但是安装配置是真的麻烦,遇见了各种坑,下面来进入正题。o(╥﹏╥)o

一 . 版本

   注意:如果版本不匹配也会有各种报错,可以根据官网匹配版本。

  • seata:1.3.0
    alibaba.cloud:2.2.3.RELEASE
    nacos:2.0.2
    
  • 二. docker安装搭建seata服务端

             2.1 下载seata镜像

  • docker pull seataio/seata-server:1.3.0
    
  •         2.2 在Linux目录下创建registry.conf,我的路径在/data/seate/registry.conf,接下来的所有创建都在这个目录下

  • cd /data
    mkdir seate
    vim registry.conf
    
  •         2.3 registry.conf中的内容如下

  • registry {
      type = "nacos"
     
      nacos {
        application = "seata-server"
        serverAddr = "127.0.0.1:8848"
        group = "SEATA_GROUP"
        namespace = ""
        cluster = "default"
        username = ""
        password = ""
      }
    }
     
    config {
      type = "nacos"
     
      nacos {
        serverAddr = "127.0.0.1:8848"
        namespace = ""
        group = "SEATA_GROUP"
        username = ""
        password = ""
      }
    }
    
  • 注意registry和config需要在同一个组下,注册中心我用的是nacos,注意nacos的地址要改。

    ----->>>这里我插一句,需要新建一个数据库seata,并且新建三张表,

  • -- -------------------------------- The script used when storeMode is 'db' --------------------------------
    -- the table to store GlobalSession data
    CREATE TABLE IF NOT EXISTS `global_table`
    (
        `xid`                       VARCHAR(128) NOT NULL,
        `transaction_id`            BIGINT,
        `status`                    TINYINT      NOT NULL,
        `application_id`            VARCHAR(32),
        `transaction_service_group` VARCHAR(32),
        `transaction_name`          VARCHAR(128),
        `timeout`                   INT,
        `begin_time`                BIGINT,
        `application_data`          VARCHAR(2000),
        `gmt_create`                DATETIME,
        `gmt_modified`              DATETIME,
        PRIMARY KEY (`xid`),
        KEY `idx_gmt_modified_status` (`gmt_modified`, `status`),
        KEY `idx_transaction_id` (`transaction_id`)
    ) ENGINE = InnoDB
      DEFAULT CHARSET = utf8;
     
    -- the table to store BranchSession data
    CREATE TABLE IF NOT EXISTS `branch_table`
    (
        `branch_id`         BIGINT       NOT NULL,
        `xid`               VARCHAR(128) NOT NULL,
        `transaction_id`    BIGINT,
        `resource_group_id` VARCHAR(32),
        `resource_id`       VARCHAR(256),
        `branch_type`       VARCHAR(8),
        `status`            TINYINT,
        `client_id`         VARCHAR(64),
        `application_data`  VARCHAR(2000),
        `gmt_create`        DATETIME(6),
        `gmt_modified`      DATETIME(6),
        PRIMARY KEY (`branch_id`),
        KEY `idx_xid` (`xid`)
    ) ENGINE = InnoDB
      DEFAULT CHARSET = utf8;
     
    -- the table to store lock data
    CREATE TABLE IF NOT EXISTS `lock_table`
    (
        `row_key`        VARCHAR(128) NOT NULL,
        `xid`            VARCHAR(96),
        `transaction_id` BIGINT,
        `branch_id`      BIGINT       NOT NULL,
        `resource_id`    VARCHAR(256),
        `table_name`     VARCHAR(32),
        `pk`             VARCHAR(36),
        `gmt_create`     DATETIME,
        `gmt_modified`   DATETIME,
        PRIMARY KEY (`row_key`),
        KEY `idx_branch_id` (`branch_id`)
    ) ENGINE = InnoDB
      DEFAULT CHARSET = utf8;
    
  •         实现分布式每个业务库都要加一张表undo_log,不然会报错,

  • CREATE TABLE `undo_log` (
      `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
      `branch_id` bigint(20) NOT NULL COMMENT 'branch transaction id',
      `xid` varchar(100) NOT NULL COMMENT 'global transaction id',
      `context` varchar(128) NOT NULL COMMENT 'undo_log context,such as serialization',
      `rollback_info` longblob NOT NULL COMMENT 'rollback info',
      `log_status` int(11) NOT NULL COMMENT '0:normal status,1:defense status',
      `log_created` datetime(6) NOT NULL COMMENT 'create datetime',
      `log_modified` datetime(6) NOT NULL COMMENT 'modify datetime',
      PRIMARY KEY (`id`),
      UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
    ) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8 COMMENT='AT transaction mode undo table';
    
  • 2.4 创建推送配置文件 vim config.txt,是将文件中的配置推送到nacos中去。

  • vim config.txt
    
  • service.vgroupMapping.btb_tx_group=default
    store.mode=db
    store.db.datasource=druid
    store.db.dbType=mysql
    store.db.driverClassName=com.mysql.cj.jdbc.Driver
    store.db.url=jdbc:mysql://172.0.0.1:3306/seata?useUnicode=true
    store.db.user=root
    store.db.password=root
    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
    
  • 注意btb_tx_group需要与客户端保持一致,顺便注意数据库驱动,如果是8以上用我的这个驱动,5.7的用com.mysql.jdbc.Driver

            2.5 创建推送脚本,因为执行脚本要在config.txt的下一层,所有加一层目录

  • mkdir sh
    cd sh
    vim nacos-config.sh
    
  • 内容如下:最好不要有任何的修改

  • #!/usr/bin/env bash
    # Copyright 1999-2019 Seata.io Group.
    #
    # Licensed under the Apache License, Version 2.0 (the "License");
    # you may not use this file except in compliance with the License.
    # You may obtain a copy of the License at、
    #
    #      http://www.apache.org/licenses/LICENSE-2.0
    #
    # Unless required by applicable law or agreed to in writing, software
    # 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.
     
    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
    
  •         2.6 执行推送脚本,后面是nacos的ip地址,如果端口不是8848还需要加一个-p 8884你的端口

  • bash nacos-config.sh -h 127.0.0.1
    
  •         2.7 创建容器,注意SEATA_IP如果是阿里云服务器需要写外网ip

  • docker run -d --restart always --name seata-server -p 8091:8091 -e SEATA_IP=172.0.0.1 -e SEATA_CONFIG_NAME=file:/data/seata/registry -v /data/seata:/data/seata  seataio/seata-server:1.3.0
    
  • 三 . 客户端(也就是微服务,项目中使用seata)

    3.1 pom.xml 引入依赖

  • <!-- seata分布式事务-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>io.seata</groupId>
                        <artifactId>seata-spring-boot-starter</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>io.seata</groupId>
                <artifactId>seata-spring-boot-starter</artifactId>
                <version>1.3.0</version>
            </dependency>
    
  • 注意这里一定要剔除原来自带的 io.seata包,并且服务端和客户端的包版本要一致。

    3.2 配置项目配置文件

  • #seata
    seata.application-id=${spring.application.name}
    seata.tx-service-group=btb_tx_group
    seata.config.type=nacos
    seata.config.nacos.server-addr=172.0.0.1:8848
    seata.config.nacos.group=SEATA_GROUP
    seata.registry.type=nacos
    seata.registry.nacos.application=seata-server
    seata.registry.nacos.server-addr=172.0.0.1:8848
    seata.registry.nacos.group=SEATA_GROUP
    
  • 注意:这里的btb_tx_group要跟服务端的vgroupMapping后面的key保持一致,

    如:service.vgroupMapping.btb_tx_group=default

    3.3 加入注解使用

  • @GlobalTransactional
    
  • 扩展: 我用的是一个数据库,执行报错,说我缺少主键,于是我在表undo_log加了一个增的主键id,上面的创建undo_log表的sql是我加了id的,官方给的是没有id的。请知晓!!!!

    dockernacos教程(Docker+nacos+seata1.3.0安装与使用配置教程)

    问题:单数源是有报错的,原因是因为我是一个数据库,需要设置代理配置如下 ,根据自己实际情况是指配置文件,不然会报错

  • #单数据源
    seata.enable-auto-data-source-proxy=true
    #多数据源
    seata.enable-auto-data-source-proxy=false
    
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