[erlang-questions] How to get wxerlang working in in Ubuntu 14.04.4 LTS

Mon Apr 11 11:36:38 CEST 2016

I don't think it is a good idea to set the DISPLAY variable like You did.

I just found this link:

http://fabiorehm.com/blog/2014/09/11/running-gui-apps-with-docker/

Maybe this will give You some hints how to get it running.

Regards,
Boris

2016-04-11 11:30 GMT+02:00 Stefan Houtzager <stefan.houtzager@REDACTED>:

> That could be of course. How I connect to erlang? I just start a
> dockercontainer from a terminal session (pico):
>
> sudo docker run -it -h NEWCONTAINER --volumes-from stefancontainer
> stefan/phoenix /bin/bash
>
> and then type erl (in the same pico editor).
>
> echo $DISPLAY gives :100 as response (while in the dockercontainer of
> course), so
> RUN echo "export DISPLAY=:100.0" >> ~/.bashrc
> in the dockerfile seemed to work
>
>
> On Mon, Apr 11, 2016 at 11:04 AM, Boris Mühmer <boris.muehmer@REDACTED>
> wrote:
>
>> Maybe the problem is related to the docker environment. I only had a
>> brief contact with docker so I am not sure if I remember everything
>> correctly.
>>
>> How do You connect to Erlang in the docker environment? Do You use SSH?
>> Do You use "-X" for the connection?
>> Could You check if "DISPLAY" is set?! If DISPLAY is empty You will always
>> get the above error.
>>
>> This is just a *pseudo example* using a ssh connection to localhost:
>>
>> LOCAL> ssh -X bsmr@REDACTED
>> Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-85-generic x86_64)
>> REMOTE> echo $DISPLAY
>> localhost:10.0
>>
>>
>> But without a proper DISPLAY variable wx (or every other X11 application)
>> will fail.
>>
>>
>> Regards,
>> Boris
>>
>>
>>
>> 2016-04-11 10:37 GMT+02:00 Stefan Houtzager <stefan.houtzager@REDACTED>:
>>
>>> Thanks Boris,
>>>
>>> When I install libwxbase3.0-dev, libwxgtk3.0-dev and libglu1-mesa-dev
>>> instead of  freeglut3-dev wx2.8-headers wx-common libwxbase2.8
>>> libwxgtk2.8-dev libqt4-opengl-dev libgtk2.0-dev libgl1-mesa-dev
>>> libglu1-mesa-dev libpng3
>>> I get the same error on  wx:demo().
>>> which wx-config && wx-config --version-full gives
>>> /usr/bin/wx-config
>>> 3.0.0.0
>>>   Maybe I have to configure some files from within my script?
>>>
>>>
>>> On Mon, Apr 11, 2016 at 10:00 AM, Boris Mühmer <boris.muehmer@REDACTED>
>>> wrote:
>>>
>>>> Hello Stefan,
>>>>
>>>> You need to install *libwxbase3.0-dev* and *libwxgtk3.0-dev*.
>>>>
>>>> I also believe You should install *libglu1-mesa-dev*. I have it in my
>>>> erlang setup dependency list, but I can not remember why this was needed.
>>>> It is possible that the gl demo did not work without it.
>>>>
>>>> But "my dependency list" started with 12.04, and some things were
>>>> manuall changed/configured with 14.04. Maybe some things are automatically
>>>> resolved now (like libwxgtk3.0-dev automatically includes libwxbase3.0-dev
>>>> and libglu1-mesa-dev).
>>>>
>>>>
>>>> Regards,
>>>> Boris
>>>>
>>>> 2016-04-11 9:22 GMT+02:00 Stefan Houtzager <stefan.houtzager@REDACTED>
>>>> :
>>>>
>>>>> Hi,
>>>>>
>>>>> I would appreciate an installscript for a recent erlang version
>>>>> on Ubuntu 14.04.4 LTS with wxerlang working.
>>>>>   I am a starting elixir developer (and for that need erlang). I would
>>>>> like to get wxerlang working and created a dockerimage to make my
>>>>> installation easy portable. I use otp_src_18.3.tar.gz and install several
>>>>> wx packages and others, I'm not sure if I miss some or install some that
>>>>> are not needed. Anyway, after the install the output of which
>>>>> wx-config && wx-config --version-full is
>>>>>
>>>>> /usr/bin/wx-config
>>>>> 2.8.12.1
>>>>>
>>>>> But wx:demo(). results in an error:
>>>>>
>>>>> Eshell V7.3  (abort with ^G)
>>>>> 1> wx:demo().
>>>>> Error: Unable to initialize gtk, is DISPLAY set properly?
>>>>> ok
>>>>> 2>
>>>>>
>>>>> The most important installs in the dockerfile (just linux commands
>>>>> after the RUN statements, phusion/baseimage:0.9.18 is Ubuntu 14.04.4 LTS
>>>>> reworked for docker)  I copied below, the full dockerfile and the logging
>>>>> of the output I arttached.
>>>>>
>>>>>
>>>>> FROM phusion/baseimage:0.9.18
>>>>> MAINTAINER Stefan Houtzager <stefan.houtzager@REDACTED>
>>>>>
>>>>> # Important!  Update this no-op ENV variable when this Dockerfile
>>>>> # is updated with the current date. It will force refresh of all
>>>>> # of the base images and things like `apt-get update` won't be using
>>>>> # old cached versions when the Dockerfile is built.
>>>>> ENV REFRESHED_AT 05-04-2016
>>>>>
>>>>> # Set correct environment variables.
>>>>>
>>>>> # Setting ENV HOME does not seem to work currently. HOME is unset in
>>>>> Docker container.
>>>>> # See bug : https://github.com/phusion/baseimage-docker/issues/119
>>>>> #ENV HOME /root
>>>>> # Workaround:
>>>>> RUN echo /root > /etc/container_environment/HOME
>>>>>
>>>>> # Regenerate SSH host keys. baseimage-docker does not contain any, so
>>>>> you
>>>>> # have to do that yourself. You may also comment out this instruction;
>>>>> the
>>>>> # init system will auto-generate one during boot.
>>>>> RUN /etc/my_init.d/00_regen_ssh_host_keys.sh
>>>>>
>>>>> # Use baseimage-docker's init system.
>>>>> CMD ["/sbin/my_init"]
>>>>>
>>>>> # ...put your own build instructions here...
>>>>>
>>>>> # Set the locale
>>>>> RUN locale-gen en_US.UTF-8
>>>>> ENV LANG en_US.UTF-8
>>>>> ENV LANGUAGE en_US:en
>>>>> ENV LC_ALL en_US.UTF-8
>>>>>
>>>>> WORKDIR /tmp
>>>>>
>>>>> # See : https://github.com/phusion/baseimage-docker/issues/58
>>>>> RUN echo 'debconf debconf/frontend select Noninteractive' |
>>>>> debconf-set-selections
>>>>>
>>>>> # update and install some software requirements
>>>>> RUN apt-get update && apt-get upgrade -y && apt-get install -y curl
>>>>> wget git unzip autoconf make g++ gcc fop libxml2-utils xsltproc
>>>>>
>>>>> WORKDIR /
>>>>>
>>>>> RUN add-apt-repository ppa:openjdk-r/ppa
>>>>> RUN apt-get update && apt-get install openjdk-8-jdk -y
>>>>>
>>>>> WORKDIR /
>>>>>
>>>>> # install nano (and pico)
>>>>> RUN apt-get update && apt-get install nano -y
>>>>>
>>>>> # Needed for terminal handling (libc-dev libncurses5 libtinfo-dev
>>>>> libtinfo5 ncurses-bin)
>>>>> RUN apt-get -y install libncurses5-dev openssl libssl-dev m4
>>>>> libncurses-dev libgmp3-dev libglu-dev
>>>>>
>>>>> # For building with wxWidgets
>>>>> RUN apt-get -y install freeglut3-dev wx2.8-headers wx-common
>>>>> libwxbase2.8 libwxgtk2.8-dev libqt4-opengl-dev libgtk2.0-dev
>>>>> libgl1-mesa-dev libglu1-mesa-dev libpng3
>>>>>
>>>>> # For building ssl (libssh-4 libssl-dev zlib1g-dev)
>>>>> RUN apt-get -y install libssh-dev
>>>>>
>>>>> # ODBC support (libltdl3-dev odbcinst1debian2 unixodbc)
>>>>> RUN apt-get -y install unixodbc-dev
>>>>> RUN apt-get -y install ncurses-dev
>>>>> RUN wget http://www.erlang.org/download/otp_src_18.3.tar.gz
>>>>> RUN tar -xvzf otp_src_18.3.tar.gz
>>>>> RUN chmod -R 777 otp_src_18.3
>>>>> WORKDIR otp_src_18.3
>>>>> RUN ./configure
>>>>> RUN make
>>>>> RUN make install
>>>>> RUN cd .. && rm -R otp_src_18.3/
>>>>>
>>>>> RUN echo "ERLANG_HOME=/usr/local/lib/erlang" >> ~/.bashrc
>>>>> RUN echo "export PATH=$PATH:$ERLANG_HOME/bin" >> ~/.bashrc
>>>>> RUN echo "export DISPLAY=:100.0" >> ~/.bashrc
>>>>>
>>>>> RUN apt-get purge --auto-remove openjdk-8-jdk -y
>>>>> RUN rm -R /usr/lib/jvm
>>>>>
>>>>>
>>>>> --
>>>>> Kind regards,
>>>>>
>>>>> Stefan Houtzager
>>>>>
>>>>> Houtzager ICT consultancy & development
>>>>>
>>>>> www.linkedin.com/in/stefanhoutzager
>>>>>
>>>>> _______________________________________________
>>>>> erlang-questions mailing list
>>>>> erlang-questions@REDACTED
>>>>> http://erlang.org/mailman/listinfo/erlang-questions
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Kind regards,
>>>
>>> Stefan Houtzager
>>>
>>> Houtzager ICT consultancy & development
>>>
>>> www.linkedin.com/in/stefanhoutzager
>>>
>>
>>
>
>
> --
> Kind regards,
>
> Stefan Houtzager
>
> Houtzager ICT consultancy & development
>
> www.linkedin.com/in/stefanhoutzager
>
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