查詢可安裝的db2鏡像
# docker search db2
[root@docker-servers ~]# docker search db2
INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED
docker.io docker.io/ibmcom/db2 Db2 - The AI Database 35
docker.io docker.io/angoca/db2-instance OLD - 2. Prepares the environment to creat... 18 [OK]
docker.io docker.io/angoca/db2-install 1. Downloads from IBM and installs DB2 Exp... 9 [OK]
docker.io docker.io/datagrip/db2 docker-env-db2 5 [OK]
docker.io docker.io/zongqiang/db2v10.5expc DB2 v10.5.0.4 Express-C 5
docker.io docker.io/angoca/db2-sample 4. DB2 sample database in db2inst1 instanc... 4
docker.io docker.io/angoca/db2inst1 2. DB2 instance (db2inst1) running without... 4 [OK]
docker.io docker.io/ibmoms/db2express-c DB2 Express-C 3
docker.io docker.io/db260179/guacamole-combined Dockerfile for Guacamole with embedded Mar... 2
docker.io docker.io/pheasanthunters/db2express-c IBM DB2 Express-C 2
docker.io docker.io/cwds/db2 This is a Docker image with DB2 Express-C ... 1
docker.io docker.io/henriquemoreno/db2express-c IBM db2express-c 1
docker.io docker.io/hmlandregistry/db2_developer_c Mirror of DB2 developer. No other changes. 1
docker.io docker.io/ignatov/db2 db2 1 [OK]
docker.io docker.io/taskana/db2 Preconfigured db2 database(s) for taskana 1
docker.io docker.io/butler54/db2-update DB2 update test 0
docker.io docker.io/cuball0/db2express-server db2express-server 0 [OK]
docker.io docker.io/db2eventstore/icp-dev-jupyter 0
docker.io docker.io/eewswee/db2 DB2 lab 0
docker.io docker.io/hreeinfodb/db2 db2 0
docker.io docker.io/ibmcom/db2-amd64 Db2 - The AI Database 0
docker.io docker.io/ibmcom/db2u.instdb 0
docker.io docker.io/ibmcom/db2u.tools 0
docker.io docker.io/maketechnology/db2 DB2 express with sample data 0 [OK]
docker.io docker.io/rodrigotsuru/db2-docker DB2 Docker build 0 [OK] docker-hub上拉取鏡像到本地
# docker pull ibmcom/db2express-c
[root@docker-servers ~]# docker pull ibmcom/db2express-c
Using default tag: latest
Trying to pull repository docker.io/ibmcom/db2express-c ...
latest: Pulling from docker.io/ibmcom/db2express-c
a3ed95caeb02: Pull complete
aeb4552c46f2: Pull complete
67f42aa337c8: Pull complete
36add9e32b7b: Pull complete
cca79fe4efc9: Pull complete
47257c26990b: Pull complete
ffaad03725df: Pull complete
12bf772a460f: Pull complete
d7696ccb610d: Pull complete
6cf81245c65d: Pull complete
5dab63ce98e0: Pull complete
91dd2d768d97: Pull complete
e3aca141cf3e: Pull complete
Digest: sha256:6217d60b20b58e08e5189f467cfb9a08f3472cf6c3a5e5d5d91900791c709a86
Status: Downloaded newer image for docker.io/ibmcom/db2express-c:latest 查詢下載下傳鏡像
# docker images | grep -i db2
[root@docker-servers ~]# docker images | grep -i db2
docker.io/ibmcom/db2express-c latest 7aa154d9b73c 4 years ago 1.71 GB 啟動DB2容器
# docker run -it --network=host -p50000:50000 -e DB2INST1_PASSWORD=db2root-pwd -e LICENSE=accept docker.io/ibmcom/db2express-c:latest bash
[root@docker-servers ~]# docker run -it --network=host -p50000:50000 -e DB2INST1_PASSWORD=db2root-pwd -e LICENSE=accept docker.io/ibmcom/db2express-c:latest bash
Changing password for user db2inst1.
New password: Retype new password: passwd: all authentication tokens updated successfully. - -p 50000:50000 允許遠端的用戶端可以從50000 端口連接配接到資料庫執行個體.
- 通過指定 -e DB2INST1_PASSWORD=db2root-pwd 參數, 你可以為預設的Db2執行個體使用者db2inst1設定密碼.注意：這裡“DB2INST1”是使用者名，而“b2root-pwd”是密碼。
- 通過指定-e LICENSE=accept參數, 表示你接受了使用Db2軟體的許可證協定.
切換到執行個體使用者db2inst1
# su - db2inst1
[root@docker-servers /]# su - db2inst1
Last login: Wed May 20 21:57:28 UTC 2015
[db2inst1@docker-servers ~]$ 啟動執行個體
$ db2start
[db2inst1@docker-servers ~]$ db2start
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. 檢視運作狀态
$ db2pd -
[db2inst1@docker-servers ~]$ db2pd -
Database Member 0 -- Active -- Up 0 days 00:02:13 -- Date 2019-12-18-03.42.49.332209 檢視已經建立的資料庫
$ db2 list dbdirectory
說明目前沒有建立資料庫
[db2inst1@docker-servers ~]$ db2 list dbdirectory
SQL0104N An unexpected token "dbdirectory" was found following "LIST".
Expected tokens may include: "ACTIVE". SQLSTATE=42601 檢視資料庫和更新檔版本
$ db2level
[db2inst1@docker-servers ~]$ db2level
DB21085I This instance or install (instance name, where applicable:
"db2inst1") uses "64" bits and DB2 code release "SQL10055" with level
identifier "0606010E".
Informational tokens are "DB2 v10.5.0.5", "s141128", "IP23633", and Fix Pack
"5".
Product is installed at "/home/db2inst1/sqllib". 顯示運作的Db2容器資訊,在主控端上運作
# docker ps | grep db2
[root@docker-servers ~]# docker ps | grep db2
e180d38c218f docker.io/ibmcom/db2express-c:latest "/entrypoint.sh bash" 12 minutes ago Up 2 minutes focused_visvesvaraya 重新開機容器，通過-v選項指定主控端目錄和容器目錄的映射關系
# docker run -it --network=host -p50000:50000 -e DB2INST1_PASSWORD=db2inst1-pwd -e LICENSE=accept -v /home/db2data:/db2data ibmcom/db2express-c:latest bash
主控端目錄為/home/db2data，容器目錄為/db2data
[root@docker-servers ~]# docker run -it --network=host -p50000:50000 -e DB2INST1_PASSWORD=db2inst1-pwd -e LICENSE=accept -v /home/db2data:/db2data ibmcom/db2express-c:latest bash
Changing password for user db2inst1.
New password: BAD PASSWORD: The password contains the user name in some form
Retype new password: passwd: all authentication tokens updated successfully. 檢視挂載
# df -h
[root@docker-servers /]# df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 560G 64G 497G 12% /
overlay 560G 64G 497G 12% /
tmpfs 12G 0 12G 0% /dev
tmpfs 12G 0 12G 0% /sys/fs/cgroup
/dev/mapper/centos-home 200G 20G 181G 10% /db2data
/dev/mapper/centos-root 560G 64G 497G 12% /etc/hosts
shm 64M 0 64M 0% /dev/shm
tmpfs 12G 0 12G 0% /proc/acpi
tmpfs 12G 0 12G 0% /proc/kcore
tmpfs 12G 0 12G 0% /proc/keys
tmpfs 12G 0 12G 0% /proc/timer_list
tmpfs 12G 0 12G 0% /proc/timer_stats
tmpfs 12G 0 12G 0% /proc/sched_debug
tmpfs 12G 0 12G 0% /proc/scsi
tmpfs 12G 0 12G 0% /sys/firmware 設定目錄權限，其中db2data為表空間的目錄、log為日志目錄、dbpath為建立資料庫時的dbpath。
[root@docker-servers /]# ls
bin db2data dev entrypoint.sh epel-release-7-5.noarch.rpm etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
[root@docker-servers /]#
[root@docker-servers /]# chmod 777 db2data
[root@docker-servers /]#
[root@docker-servers /]# su - db2inst1
Last login: Wed May 20 21:57:28 UTC 2015
[db2inst1@docker-servers ~]$
[db2inst1@docker-servers ~]$ cd /db2data
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ ls
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ mkdir data
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ mkdir dbpath
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ mkdir log
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ pwd
/db2data
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ ls
data dbpath log
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ ls -lrt
total 0
drwxrwxr-x 2 db2inst1 db2inst1 6 Dec 18 05:13 data
drwxrwxr-x 2 db2inst1 db2inst1 6 Dec 18 05:14 dbpath
drwxrwxr-x 2 db2inst1 db2inst1 6 Dec 18 05:14 log 檢視預設的dbpath
$ db2 get dbm cfg | grep -i dbpath
[db2inst1@docker-servers db2data]$ db2 get dbm cfg | grep -i dbpath
Default database path (DFTDBPATH) = /home/db2inst1 建立使用者資料庫mydb
$ db2 "create db mydb on /db2data/data dbpath on /db2data/dbpath using codeset utf-8 territory cn"
[db2inst1@docker-servers db2data]$ db2start
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.
[db2inst1@docker-servers db2data]$
[db2inst1@docker-servers db2data]$ db2 "create db mydb on /db2data/data dbpath on /db2data/dbpath using codeset utf-8 territory cn"
DB20000I The CREATE DATABASE command completed successfully. 修改日志路徑
$ db2 update db cfg for mydb using newlogpath /db2data/log
[db2inst1@docker-servers db2data]$ db2 update db cfg for mydb using newlogpath /db2data/log
DB20000I The UPDATE DATABASE CONFIGURATION command completed successfully. 激活資料庫
$ db2 activate db mydb
[db2inst1@docker-servers db2data]$ db2 activate db mydb
DB20000I The ACTIVATE DATABASE command completed successfully. 确認日志生效
[db2inst1@docker-servers db2data]$ cd /db2data/log
[db2inst1@docker-servers log]$
[db2inst1@docker-servers log]$ ls
NODE0000
[db2inst1@docker-servers log]$ cd *
[db2inst1@docker-servers NODE0000]$
[db2inst1@docker-servers NODE0000]$ ls
LOGSTREAM0000
[db2inst1@docker-servers NODE0000]$
[db2inst1@docker-servers NODE0000]$ cd *
[db2inst1@docker-servers LOGSTREAM0000]$
[db2inst1@docker-servers LOGSTREAM0000]$ ls
S0000000.LOG S0000001.LOG S0000002.LOG SQLLPATH.TAG
[db2inst1@docker-servers LOGSTREAM0000]$
[db2inst1@docker-servers LOGSTREAM0000]$ ls -lrt
total 12028
-rw------- 1 db2inst1 db2inst1 512 Dec 18 05:30 SQLLPATH.TAG
-rw------- 1 db2inst1 db2inst1 4104192 Dec 18 05:30 S0000000.LOG
-rw------- 1 db2inst1 db2inst1 4104192 Dec 18 05:30 S0000001.LOG
-rw------- 1 db2inst1 db2inst1 4104192 Dec 18 05:30 S0000002.LOG
[db2inst1@docker-servers LOGSTREAM0000]$
[db2inst1@docker-servers LOGSTREAM0000]$ db2 get db cfg for mydb | grep -i primary
Number of primary log files (LOGPRIMARY) = 3
Percent max primary log space by transaction (MAX_LOG) = 0 由于容器是靜态的，是以每次重新開機容器之後都需要做catalog，否則無法通路資料庫。
$ db2 catalog db mydb as mydb on /db2data/dbpath
$ db2 connect to mydb
[db2inst1@docker-servers LOGSTREAM0000]$ db2 catalog db mydb as mydb on /db2data/dbpath
SQL1005N The database alias "mydb" already exists in either the local
database directory or system database directory.
[db2inst1@docker-servers LOGSTREAM0000]$
[db2inst1@docker-servers LOGSTREAM0000]$ db2 connect to mydb
Database Connection Information
Database server = DB2/LINUXX8664 10.5.5
SQL authorization ID = DB2INST1
Local database alias = MYDB 現在，可以送出修改到容器
# docker ps -a
# docker commit bee1d5a3d26f ibmcom/db2express-c-new
[root@docker-servers ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
bee1d5a3d26f ibmcom/db2express-c:latest "/entrypoint.sh bash" 42 minutes ago Exited (0) 2 seconds ago epic_cray
[root@docker-servers ~]# docker commit bee1d5a3d26f ibmcom/db2express-c-new
sha256:dabb4f81f8f0e62ad2da99520fe22412499792bd67f538e287c2d426914cbfd9 # docker images | grep db2
[root@docker-servers ~]# docker images | grep db2
ibmcom/db2express-c-new latest dabb4f81f8f0 31 minutes ago 1.71 GB
docker.io/ibmcom/db2express-c latest 7aa154d9b73c 4 years ago 1.71 GB 執行save指令持久化鏡像，這裡運作的目的是儲存catalog db的資訊，以便每次重新開機容器後可以直接通路mydb資料庫
# docker save ibmcom/db2express-c-new>/home/ibm-db2express-c-new.tar
最後的結果是生成一個1.7GB大小的Tar檔案
停止已經啟動的db2container，以避免表空間通路沖突
重新啟動新的image，發現不需要做catalog db了，說明這些資訊已經持久化到影像中了
# docker run -it --network=host -p50000:50000 -e DB2INST1_PASSWORD=db2inst1-pwd -e LICENSE=accept -v /home/db2data:/db2data ibmcom/db2express-c-new:latest bash
[root@docker-servers ~]# docker run -it --network=host -p50000:50000 -e DB2INST1_PASSWORD=db2inst1-pwd -e LICENSE=accept -v /home/db2data:/db2data ibmcom/db2express-c-new:latest bash
Changing password for user db2inst1.
New password: BAD PASSWORD: The password contains the user name in some form
Retype new password: passwd: all authentication tokens updated successfully. 切換到db2inst1使用者
# su - db2inst1
[root@docker-servers /]# su - db2inst1
Last login: Wed Dec 18 05:13:28 UTC 2019 on console 啟動db2
$ db2start
[db2inst1@docker-servers ~]$ db2start
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. 連接配接db2中mydb庫
$ db2 connect to mydb
[db2inst1@docker-servers ~]$ db2 connect to mydb
Database Connection Information
Database server = DB2/LINUXX8664 10.5.5
SQL authorization ID = DB2INST1
Local database alias = MYDB 檢視有哪些資料庫
$ db2 list db directory
[db2inst1@docker-servers ~]$ db2 list db directory
System Database Directory
Number of entries in the directory = 1
Database 1 entry:
Database alias = MYDB
Database name = MYDB
Local database directory = /db2data/dbpath
Database release level = 10.00
Comment =
Directory entry type = Indirect
Catalog database partition number = 0
Alternate server hostname =
Alternate server port number = 檢視有哪些使用者表
$ db2 list tables
[db2inst1@docker-servers ~]$ db2 list tables
Table/View Schema Type Creation time
------------------------------- --------------- ----- --------------------------
0 record(s) selected. 檢視表結構
$ db2 describe table table_name
取前n行資料
$ db2 select * from table_name fetch first nrows only
顯示資料庫版本
$ db2level
[db2inst1@docker-servers ~]$ db2level
DB21085I This instance or install (instance name, where applicable:
"db2inst1") uses "64" bits and DB2 code release "SQL10055" with level
identifier "0606010E".
Informational tokens are "DB2 v10.5.0.5", "s141128", "IP23633", and Fix Pack
"5".
Product is installed at "/home/db2inst1/sqllib". 連接配接資料庫
db2 connect to dbname user <user_name>using <passwd>
參考部落格：
Docker中安裝DB2的詳細教程和DBVisualize的安裝教程
https://www.jianshu.com/p/0914ac2984f6
如何在DOCKER環境中使用DB2
https://www.cnblogs.com/yanwei-wang/p/8513371.html
如何在DOCKER環境中使用DB2
https://blog.csdn.net/qq_39154147/article/details/79219414
