jenathon

repository for the jenathon

prerequisits

• coreos, any other linux that supports docker, Win 10
• docker, docker-compose
• docker already integrated in coreos
• for Windows 10 use the powershell and docker Win10 app (find here https://docs.docker.com/docker-for-windows/install/)

getting started

• getting the sources

$ git clone https://github.com/agrohmann/jenathon.git

• build the images

$ cd ../jenathon/src
$ docker-compose build

• start container from images (if you using Win 10, you probably have to remove the volumes entries from the docker-compose files, or make a version 2 dockerfile see also here )

$ docker-compose up -d

• check if the containers are running

$ docker ps

• build the database from rails container

$ docker exec -ti jenathon-production /bin/bash
$ rake db:create
$ rake db:migrate
$ exit

• check your browser at http://localhost/
• do some administration stuff at http://localhost/admin
• after changing code you should execute

$ cd ../jenathon/src
$ docker-compose stop
$ docker-compose rm -f
$ git pull
$ rm -f jenathon_rails/Gemfile.lock
$ docker-compose build
$ docker-compose up -d
$ docker rmi $(docker images --filter "dangling=true" -q --no-trunc)

(if you disable volumes in Win 10, prepare of loosing the database content)

hands on

• look for some examples
• to add own data use following ( see also here )

$ docker exec -ti jenathon-production /bin/bash
$ rails generate scaffold Example attr1:string attr2:integer
$ rake db:migrate

• to prepare the data for the app change following file ..\jenathon\src\jenathon_rails\app\controllers\static_pages_controller.rb

def home
  # TODO: add more own models here to display in the map
  @users = User.all
  # TODO: build your hash for custom map content here
  @hash = Gmaps4rails.build_markers(@users) do |user, marker|
    marker.lat user.latitude
    marker.lng user.longitude
    marker.infowindow user.description
    unless user.logo_url.blank?
      marker.picture({
        "url" => user.logo_url,
        "width" => 32,
        "height" => 32
      })
    end
  end
end

• check whats possible in google maps

• get your google map api key here

• to change the javascript code in the template itselfs change following file ..\jenathon\src\jenathon_rails\app\views\static_pages\home.html.erb

<script src="//maps.google.com/maps/api/js?key=[AD_YOUR_KEY_HERE]"></script>
<script src="//cdn.rawgit.com/mahnunchik/markerclustererplus/master/dist/markerclusterer.min.js"></script>
<script src='//cdn.rawgit.com/printercu/google-maps-utility-library-v3-read-only/master/infobox/src/infobox_packed.js' type='text/javascript'></script> <!-- only if you need custom infoboxes -->
...
<div style='width: 800px;'>
  <div id="map" style='width: 800px; height: 400px;'></div>
</div>

<script type="text/javascript">
  handler = Gmaps.build('Google');
  handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){
    markers = handler.addMarkers(<%=raw @hash.to_json %>);
    handler.bounds.extendWith(markers);
    handler.fitMapToBounds();
  });
</script>

• add icons for the map here /jenathon/src/jenathon_rails/public/icons, note that they have to have the format 32x32
• the docker image that is used (its only ruby with installed nodejs)