docker安装seata1.4，并使用nacos为注册中心（详细）

1、直接拉取seate1.4

docker pull seataio/seata-server:1.4.0

2、创建对应的seata文件夹，本文在/home下创建的

mkdir seata

3、先启动seata容器，把需要的挂载出来管理的文件夹cp出来

docker run --name seata-server -p 8091:8091 -d seataio/seata-server:1.4.0

docker cp seata-server:/seata-server  /home/seata

4、然后停止并删除已创建容器

docker stop seata-server

docker rm seata-server

5、正式启动对应seata容器（注意：-v后/home/seata，需要改为你实际的位置，还有seata_ip地址）

docker run -d --restart always --name seata-server -p 8091:8091  -v /home/seata:/seata-server -e SEATA_IP=xxx.xxx.xxx.xxx -e SEATA_PORT=8091 seataio/seata-server:1.4.0

 参数说明： 

• -v /home/seata:/seata-server 宿主机目录/home/seata与seata容器目录/seata-server进行挂载，数据互通
• -e SEATA_IP=xxx.xxx.xxx.xxx, 指定seata-server启动的IP
• -e SEATA_PORT=8091, 指定seata-server启动的端口, 默认为 8091

6、接下来我们需要对进行配置nacos为注册中心了 ，需要进入到/home/seata/resources修改registry文件

vi /home/seata/resources/registry.conf

7、注意把里面的type改为nacos，并修改nacos中对应的信息

registry {
  # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  type = "nacos"
  loadBalance = "RandomLoadBalance"
  loadBalanceVirtualNodes = 10

  nacos {
    application = "seata-server"
    serverAddr = "xxx.xxx.xxx.xxx:8848"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
.........

8、我们需要在/home/seata下创建一个文件夹，用来配置seata中的信息，例如数据库连接等等

touch config.txt

9、进行编辑，把下面内容修改后复制进去即可保存

vi config.txt

service.vgroupMapping.xxx-system-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://xxxxxx:3306/yd_seate?useUnicode=true
store.db.user=root
store.db.password=xxxx
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

 10、然后我们需要进入/home/seata/resources下写一个shell，用于上传config.txt中的信息上去nacos中

touch nacos-config.sh

注意：创建的shell是没有不能执行的，需要设置一下文件

chmod u+x nacos-config.sh

把以下内容复制进去（不需要修改哟）

vi nacos-config.sh

#!/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

11、保存后执行以下命令（注意以下-h和-u、-w参数），配置信息就上传到nacos拉

sh nacos-config.sh -h xxx.xxx.xxx.xxx -p 8848 -g SEATA_GROUP  -u nacos -w nacos

12、然后重启以下docker中的seata容器，就好啦