Rodando o Oracle no Docker
Instalação do Docker
O primeiro passo é instalar o Docker no seu ambiente. No meu caso estou usando o Ubuntu 16.04:
root@docker:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenialPara instalar o Docker execute:
root@docker:~# apt install docker.io
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
bridge-utils cgroupfs-mount containerd runc ubuntu-fan
Suggested packages:
mountall aufs-tools debootstrap docker-doc rinse zfs-fuse | zfsutils
The following NEW packages will be installed:
bridge-utils cgroupfs-mount containerd docker.io runc ubuntu-fan
0 upgraded, 6 newly installed, 0 to remove and 133 not upgraded.
Need to get 16.4 MB of archives.
After this operation, 83.6 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 bridge-utils amd64 1.5-9ubuntu1 [28.6 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 cgroupfs-mount all 1.2 [4,970 B]
Get:3 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 runc amd64 1.0.0~rc2+docker1.12.6-0ubuntu1~16.04.1 [1,479 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 containerd amd64 0.2.5-0ubuntu1~16.04.1 [4,041 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 docker.io amd64 1.12.6-0ubuntu1~16.04.1 [10.8 MB]
Get:6 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ubuntu-fan all 0.9.2 [30.7 kB]
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Selecting previously unselected package bridge-utils.
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Adding group `docker' (GID 120) ...
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Processing triggers for ureadahead (0.100.0-19) ...Baixando a imagem do Oracle da Docker Store
Agora vamos procurar uma imagem do Oracle disponível na Docker Store:
root@docker:~# docker search oracle
Vamos baixar a imagem wnameless/oracle-xe-11g para utilizá-la no nosso container:
root@docker:~# docker pull wnameless/oracle-xe-11g
Using default tag: latest
latest: Pulling from wnameless/oracle-xe-11g
d5c6f90da05d: Already exists
1300883d87d5: Already exists
c220aa3cfc1b: Already exists
2e9398f099dc: Already exists
dc27a084064f: Already exists
5e23a3a5b6f7: Downloading [==============================> ] 167.8MB/275.8MB
efb2b214660e: Downloading [==============================> ] 220MB/364.2MBO download é feito em pequenas partes com o comando “docker pull”.
Quando o download concluir você pode listar a imagem baixada:
root@docker:~# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
wnameless/oracle-xe-11g latest 5201119f4c27 2 days ago 2.23GB
ubuntu latest ccc7a11d65b1 2 weeks ago 120MBSubindo o container oracle
Agora vamos subir nosso container usando a imagem wnameless/oracle-xe-11g:
root@docker:~# docker run -idt --name oracle wnameless/oracle-xe-11g /bin/bash
0125ab1cf799db05acaea00914647612cf70d1f28a454e68bebc64b5e964e325
Veja que o container está “Up”:
root@docker:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
0125ab1cf799 wnameless/oracle-xe-11g "/bin/bash" 43 seconds ago Up 42 seconds 22/tcp, 1521/tcp, 8080/tcp oracleTrabalhando no container oracle
Para alternar sua sessão para o container oracle faça:
root@docker:~# docker attach oracle
root@0125ab1cf799:/#Veja que o prompt mudou para o hostname do container oracle.
Confira se o arquivo hosts está configurado com o hostname em questão:
root@0125ab1cf799:/# cat /etc/hosts
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.17.0.2 0125ab1cf799Verifique o IP do container:
root@0125ab1cf799:/# ifconfig
eth0 Link encap:Ethernet HWaddr 02:42:ac:11:00:02
inet addr:172.17.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:648 (648.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)Alterne sua sessão para o usuário oracle do container:
root@0125ab1cf799:/# su - oracle
oracle@0125ab1cf799:~$
Inicie o Listener:
oracle@0125ab1cf799:~$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 30-AUG-2017 13:18:24
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Starting /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.2.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Log messages written to /u01/app/oracle/product/11.2.0/xe/log/diag/tnslsnr/0125ab1cf799/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=8089fe031125)(PORT=1521)))
TNS-12545: Connect failed because target host or object does not exist
TNS-12560: TNS:protocol adapter error
TNS-00515: Connect failed because target host or object does not exist
Linux Error: 99: Cannot assign requested address
Listener failed to start. See the error message(s) above...O Listener não subiu, pois o arquivo listener.ora não está configurado devidamente para o hostname do container. Veja:
oracle@0125ab1cf799:~$ cat /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
# listener.ora Network Configuration File:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/xe)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST = 8089fe031125)(PORT = 1521))
)
)
DEFAULT_SERVICE_LISTENER = (XE)Vamos alterá-lo substituindo com o hostname correto:
oracle@0125ab1cf799:~$ hostname
0125ab1cf799
oracle@0125ab1cf799:~$ sed -i -e 's/8089fe031125/0125ab1cf799/g'
/u01/app/oracle/product/11.2.0/xe/network/admin/listener.oraTente subi-lo novamente:
oracle@0125ab1cf799:~$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 30-AUG-2017 13:26:01
Copyright (c) 1991, 2011, Oracle.All rights reserved.
Starting /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.2.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Log messages written to /u01/app/oracle/product/11.2.0/xe/log/diag/tnslsnr/0125ab1cf799/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=0125ab1cf799)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
------------------------
Alias ISTENER
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 30-AUG-2017 13:26:01
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Listener Log File /u01/app/oracle/product/11.2.0/xe/log/diag/tnslsnr/0125ab1cf799/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=0125ab1cf799)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfullyPor fim, acesse o SQL*Plus e inicie o Oracle Database:
oracle@0125ab1cf799:~$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.2.0 Production on Wed Aug 30 13:27:43 2017
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup;
ORACLE instance started.
Total System Global Area 601272320 bytes
Fixed Size 2228848 bytes
Variable Size
Redo Buffers 3448832 bytes
Database mounted.
Database opened.Bom, era isso que eu tinha para mostrar hoje. Os testes ficam por sua conta.
Para remover o container e a imagem execute os seguintes comandos:
root@devops:~# docker stop oracle
root@devops:~# docker rm oracle
root@devops:~# docker rmi wnameless/oracle-xe-11gAbraços
