Add fb live url to venue, adjust userdata creation

I added the db migration and the schema update. Due to a bug/undocumented behavior of ffmpeg with external images as source, we are saving an image during the build of the image.

I adjusted userdata.sh.erb to render the corrent userdata.sh that spawns a ffmpeg container with the fb live url from of the venue.

db/migrate/20171002092046_add_facebook_live_url_to_venues.rb

@@ -0,0 +1,5 @@
+class AddFacebookLiveUrlToVenues < ActiveRecord::Migration
+  def change
+    add_column :venues, :facebook_live_url, :string
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170726125056) do
+ActiveRecord::Schema.define(version: 20171002092046) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -573,6 +573,7 @@
     t.string   "device_name",                   default: "noop"
     t.datetime "disconnected_at"
     t.datetime "awaiting_stream_at"
+    t.string   "facebook_live_url"
   end
 
   add_index "venues", ["device_id"], name: "index_venues_on_device_id", using: :btree

lib/ffmpeg/Dockerfile

@@ -0,0 +1,10 @@
+FROM jrottenberg/ffmpeg
+
+MAINTAINER Josef Erben "josef@voicerepublic.com"
+
+RUN apt-get install wget -y && \
+    wget -O /home/image.png https://www.seeklogo.net/wp-content/uploads/2016/06/Facebook-Live-logo.png
+
+CMD         ["--help"]
+ENTRYPOINT  ["ffmpeg"]
+ENV         LD_LIBRARY_PATH=/usr/local/lib

lib/ffmpeg/build.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+DIR="$(cd "$(dirname "$0")" && pwd)"
+
+cd $DIR
+
+docker build -t jerben/ffmpeg .

lib/userdata/icebox.sh.erb

@@ -59,19 +59,31 @@ docker run \
        --publish=443:8443 \
        --restart=unless-stopped \
        --volume=$STORAGE/$PREFIX:/share \
-       branch14/icecast2
+       branch14/icecast2 
 
 # in dev this helps
 #
 # docker stop icecast
 # docker rm icecast
 # docker run \
+#	-d \
 #        --name=icecast \
+#	--network=voicerepublicdev_network \
 #        --env-file=$ENV_LIST \
 #        --publish=<%= port %>:8080 \
 #        --volume=$STORAGE/$PREFIX:/share \
-#        branch14/icecast2
-
+#        branch14/icecast2 
+
+ <% if facebook_live_url %>
+ docker stop ffmpeg
+ docker rm ffmpeg
+ docker run \
+	-d \
+	--name=ffmpeg \
+	--net=host \
+	--restart=unless-stopped \
+	jerben/ffmpeg -stats -loop 1 -i /home/image.png -i http://localhost/.aac -acodec aac -ar 44100 -b:a 128k -s 835x288 -bufsize 6000k -vb 400k -maxrate 1500k -deinterlace -vcodec libx264 -preset fast -g 30 -r 30 -f flv '<%= facebook_live_url %>'
+ <% end %>
 
 # callback to slack -- for debugging only
 # CLIENT_TOKEN=<%= client_token %>