Kevin Krummenauer kekru

This is how to easily setup an Oracle XE DB in a Virtual Machine that is accessible via localhost:1521. So you don't have to install Oracle XE locally, but inside a VM.
We use VirtualBox, Vagrant and Docker for that.

First install VirtualBox https://www.virtualbox.org/wiki/Downloads
and Vagrant https://www.vagrantup.com/downloads.html

Run vagrant version to check that vagrant is correctly installed.

Save the Vagrantfile from this gist to a local directory.

Hibernate 4 introduced a new Audit API for event listening.
org.hibernate.envers.event.AuditEventListener was replaced by org.hibernate.event.spi.*, for example org.hibernate.event.spi.PostDeleteEventListener.

First create your custom listener. Example: You want do disable auditing for delete operations.

import org.hibernate.envers.event.spi.EnversPostDeleteEventListenerImpl;
import org.hibernate.event.spi.PostDeleteEvent;

public class MyAuditListener extends EnversPostDeleteEventListenerImpl {

Docker useful commands

Stop and remove all running containers:
docker stop $(docker ps -aq) && docker rm $(docker ps -aq)

Remove all stopped containers:
docker rm $(docker ps -aq)

Remove untagged/dangling/<none> images
docker rmi $(docker images -q -f dangling=true)

#DB2
##Create drop statements for all tables:
select 'drop table '||rtrim(tabschema)||'.'||rtrim(tabname)||';' from syscat.tables where tabschema = 'MYSCHEMA';

#Oracle ##Delete all sequences and tables http://stackoverflow.com/questions/2549718/dropping-all-user-tables-sequences-in-oracle

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Verbindung mit dem VPN der FH Dortmund aufbauen unter Ubuntu

sudo apt-get install -y openconnect iptables expect
sudo openconnect vpngate.fh-dortmund.de

Start a VM with Docker with a simple command

This is how to easily setup a VM with Docker and Docker Remote API enabled.
We use VirtualBox, Vagrant and Docker for that.

First install VirtualBox https://www.virtualbox.org/wiki/Downloads
and Vagrant https://www.vagrantup.com/downloads.html

Run vagrant version to check that vagrant is correctly installed.

Save the Vagrantfile from this gist to a local directory.

Run commands on remote Docker host

This is how to connect to another host with your docker client, without modifying your local Docker installation or when you don't have a local Docker installation.

Enable Docker Remote API

First be sure to enable the Docker Remote API on the remote host.

This can easily be done with a container.
For HTTP connection use jarkt/docker-remote-api.

Create box

This is how to install something in a VM and export it as a Vagrant box and use it locally.

First copy the Vagrantfile from below and change the box to the box you want as a base.

Run vagrant up to create the Virtual Machine and vagrant ssh to login.
On Windows you might have to put ssh.exe to your %PATH%. If you have installed git, you can use C:\Program Files\Git\usr\bin You can also login via Putty on host: "localhost", Port "2222", login: "vagrant", password: "vagrant".

	# LICENSE CDDL 1.0 + GPL 2.0
	#
	# Copyright (c) 1982-2016 Oracle and/or its affiliates. All rights reserved.
	#
	# ORACLE DOCKERFILES PROJECT
	# --------------------------
	# This is the Dockerfile for Oracle Database 11g Release 2 Express Edition
	#
	# REQUIRED FILES TO BUILD THIS IMAGE
	# ----------------------------------

Kevin Krummenauer kekru

Docker useful commands

Start a VM with Docker with a simple command

Run commands on remote Docker host

Enable Docker Remote API

Create box

See here

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Troubleshooting