1、查询可安装的db2镜像
这里是单机安装，直接安装db2express-c，介绍网址 : libmcom / db2express-c
docker search db2express-c
2、下载db2镜像
docker pull ibmoms/db2express-c
这里我选用的是ibmoms/db2express-c，尝试过网上教程上的很多镜像，安装完之后都有坑-_-||。
3、安装镜像
docker run -it --name db2 -p 50000:50000 -e DB2INST1_PASSWORD=db2root-pwd -e LICENSE=accept ibmoms/db2express-c:latest bash
- -p 50000:50000 允许远程的客户端可以从50000 端口连接到数据库实例.
- 通过指定 -e DB2INST1_PASSWORD=db2root-pwd 参数, 你可以为缺省的Db2实例用户db2inst1设置密码.注意：这里“DB2INST1”是用户名，而“b2root-pwd”是密码。
- 通过指定-e LICENSE=accept参数, 表示你接受了使用Db2软件的许可证协议.
有教程说要添加 --network=host ，我在添加后各种莫名的报错╮(╯▽╰)╭
4、切换用户并运行DB2
$ su - db2inst1 //切换用户
$ db2start //启动DB2
$ db2sampl //创建默认数据库“SAMPLE”
5、常用命令
db2 create db [dbname] #创建数据库
db2 list db directory #列出所有数据库
db2 list active databases #列出所有激活的数据库
db2 get db cfg #列出所有数据库配置
6、遇到的坑
1.DB2 启动SQL5043N
解决方案: DB2 启动SQL5043N
官方解答: infocenter答案
[db2inst1@connections ~]$ db2level
DB21085I This instance or install (instance name, where applicable:
"db2inst1") uses "64" bits and DB2 code release "SQL10014" with level
identifier "0205010E".
Informational tokens are "DB2 v10.1.0.4", "s140509", "IP23584", and Fix Pack
"4".
Product is installed at "/opt/ibm/db2/V10.1".
[db2inst1@connections ~]$ db2start
08/20/2014 22:19:54 0 0 SQL5043N Support for one or more communications protocols specified in the DB2COMM environment variable failed to start successfully. However, core database manager functionality started successfully.
SQL1063N DB2START processing was successful.
[db2inst1@connections ~]$ db2set DB2COMM=tcpip
[db2inst1@connections ~]$ db2stop
2014-08-20 22:21:17 0 0 SQL1064N DB2STOP processing was successful.
SQL1064N DB2STOP processing was successful.
[db2inst1@connections ~]$ db2start
08/20/2014 22:21:20 0 0 SQL5043N Support for one or more communications protocols specified in the DB2COMM environment variable failed to start successfully. However, core database manager functionality started successfully.
SQL1063N DB2START processing was successful.
[db2inst1@connections ~]$ db2 get dbm cfg
这里重点看SVCENAME属性,修改命令：db2 update dbm cfg using SVCENAME 50000
[db2inst1@connections ~]$ db2 update dbm cfg using SVCENAME 50000
DB20000I The UPDATE DATABASE MANAGER CONFIGURATION command completed
successfully.
[db2inst1@connections ~]$ db2stop
2014-08-20 22:22:07 0 0 SQL1064N DB2STOP processing was successful.
SQL1064N DB2STOP processing was successful.
启动成功
[db2inst1@connections ~]$ db2start
08/20/2014 22:22:11 0 0 SQL1063N DB2START processing was successful.
SQL1063N DB2START processing was successful.
[db2inst1@connections ~]$ db2 get dbm cfg | grep SVCENAME
TCP/IP Service name (SVCENAME) = 50000
SSL service name (SSL_SVCENAME) =
