1.获取镜像

## 使用下面命令获取最新版本的镜像，此时我的版本是1.3.0

## 或者可以使用docker pull seataio/seata-server:latest获取最新的镜像

docker pull seataio/seata-server:1.3.0

2.运行容器并获取配置

为方便我们对seata配置修改我们需要先运行下seata-server，然后将配置拷贝到宿主机中，完成之后删除之前配置并通过宿主机运行容器。

## 运行容器

docker run --name seata-server -p 8091:8091 -d  seataio/seata-server:1.3.0

## 将容器中的配置拷贝到/data/seata

docker cp seata-server:/seata-server /data/seata

## 完成后就会在/data/seata出现容器的配置，我们现在可以将原来容器停止并删除

docker stop seata-server

docekr rm -f seata-server

3.修改配置文件

进入目录/data/seata/resources中修改file.conf和registry.conf中的内容

file.conf中的内容：

## 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 {

## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.

datasource = "druid"

## mysql/oracle/postgresql/h2/oceanbase etc.

dbType = "mysql"

driverClassName = "com.mysql.jdbc.Driver"

## 因为设置为db，所以需要选择数据库，这里设置数据库及密码，seata是需要创建的，默认的表是通过脚本运行得到的

url = "jdbc:mysql://172.18.99.38:3306/seata"

user = "root"

password = "admindev123$%^"

minConn = 5

maxConn = 30

globalTable = "global_table"

branchTable = "branch_table"

lockTable = "lock_table"

queryLimit = 100

maxWait = 5000

}

## redis store property

redis {

host = "127.0.0.1"

port = "6379"

password = ""

database = "0"

minConn = 1

maxConn = 10

queryLimit = 100

}

registry.conf内容：

registry {

# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa

## 我们这里使用nacos作为注册中心，所以需要设置type为nacos并设置nacos的属性

type = "nacos"

nacos {

application = "seata-server"

serverAddr = "172.18.99.36:8844"

group = "SEATA_GROUP"

## 这里的namespace是你nacos服务的namespace的data-id，设置那里，到时就会在那个namespace中，不设置就填public

namespace = "public"

cluster = "default"

username = "nacos"

password = "nacos"

}

}

config {

# file、nacos 、apollo、zk、consul、etcd3

type = "file"

file {

name = "file.conf"

}

}

4.初始化数据库

这里配置完成后，需要初始化数据库，sql如下

4.1 seata库执行sql

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;

4.2 业务数据库执行

CREATE TABLE `undo_log` (

`id` bigint(20) NOT NULL AUTO_INCREMENT,

`branch_id` bigint(20) NOT NULL,

`xid` varchar(100) NOT NULL,

`context` varchar(128) NOT NULL,

`rollback_info` longblob NOT NULL,

`log_status` int(11) NOT NULL,

`log_created` datetime NOT NULL,

`log_modified` datetime NOT NULL,

PRIMARY KEY (`id`),

UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)

)  ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

5.启动seata

docker run -d --restart always \

--net=host \

--name  seata-server \

-p 8091:8091  -v /data/seata/seata-server:/seata-server \

-e SEATA_IP=172.18.99.36 -e SEATA_PORT=8091 \

seataio/seata-server:1.3.0

6.查看nacos

7.环境变量

seata-server 支持以下环境变量：

SEATA_IP

可选, 指定seata-server启动的IP, 该IP用于向注册中心注册时使用, 如eureka等

SEATA_PORT

可选, 指定seata-server启动的端口, 默认为 8091

STORE_MODE

可选, 指定seata-server的事务日志存储方式, 支持db 和 file, 默认是 file

SERVER_NODE

可选, 用于指定seata-server节点ID, 如 1,2,3…, 默认为 1

SEATA_ENV

可选, 指定 seata-server 运行环境, 如 dev, test 等, 服务启动时会使用 registry-dev.conf 这样的配置

SEATA_CONFIG_NAME

可选, 指定配置文件位置, 如 file:/root/registry, 将会加载 /root/registry.conf 作为配置文件，如果需要同时指定 file.conf文件，需要将registry.conf的config.file.name的值改为类似file:/root/file.conf：