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If you are using Viscosity, OpenVPN client, and it’s not starting, run:

killall Viscosity defaults write com.viscosityvpn.Viscosity MenuOnRight -bool NO

To run jenkins in docker is nothing special. However when you want to run docker commands using jenkins in docker, that’s going to be an issue. More over on CoreOS.

You need to map volume to provide access to socket:

-v /var/run/docker.sock:/var/run/docker.sock -v $(which docker):/usr/bin/docker

When you try to run docker and host is CoreOS, you will get following error:

docker: error while loading shared libraries: libdevmapper.so.1.02: cannot open shared object file: No such file or directory

Solution is to mount it as:

-v /usr/lib/libdevmapper.so.1.02:/usr/lib/libdevmapper.so.1.02

So final command I’m using to run persitant jenkins with docker on CoreOS:

docker run -d -p 9999:8080 -v /host/os/jenkins_home:/jenkins -v /var/run/docker.sock:/var/run/docker.sock -v $(which docker):/usr/bin/docker -v /usr/lib/libdevmapper.so.1.02:/usr/lib/libdevmapper.so.1.02 vtajzich/jenkins:latest

choice from photo menu only removes photos from collection. When you want do delete them from disk as well, then press: 

I’ve created OSX app bundle from my spring boot application using this plugin:  https://github.com/crotwell/gradle-macappbundle

It’s super easy to do. However when I run the application it encounters strange error: duplicate key during when yaml processing tried to parse configs.

After couple of hours when I tried to to compare classpaths etc. I figured it out.

In my home directory, there was file named: “application.yaml”. Spring boot looks for several locations for config files. One of these location is “./”. 

I needed to implement draggable behaviour in Java FX. I found many interesting solution which seems to me too complicated ;-)

So I decided to read documentation (javadoc) :D 

To make it short, solution: