Getting ruby-2.2.6 is not installed when I try to run docker run

When I try to run:
docker run --rm -it --net familiar --name web_db --env RAILS_ENV=development enogrob/diaspora:dockerfile /bin/bash -l -c "bin/rake db:create db:schema:load"
I have got the following error(see below) any clue?

e /bin/bash -l -c "bin/rake db:create db:schema:load"iar --name web_db --env RAILS_ENV=development enogrob/diaspora:dockerfil
ruby-2.2.6 is not installed.
To install do: ‘rvm install ruby-2.2.6’
could not translate host name “db” to address: Name or service not known
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in initialize' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:651:innew’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in connect' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:242:ininitialize’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in new' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:44:inpostgresql_connection’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:438:in new_connection' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:448:incheckout_new_connection’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in acquire_connection' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:349:inblock in checkout’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/monitor.rb:211:in mon_synchronize' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:348:incheckout’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:263:in block in connection' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/monitor.rb:211:inmon_synchronize’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:262:in connection' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:571:inretrieve_connection’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_handling.rb:113:in retrieve_connection' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/connection_handling.rb:87:inconnection’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/postgresql_database_tasks.rb:6:in connection' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/postgresql_database_tasks.rb:15:increate’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:93:in create' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:107:inblock in create_current’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:275:in block in each_current_configuration' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:274:ineach’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:274:in each_current_configuration' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:106:increate_current’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/activerecord-4.2.5/lib/active_record/railties/databases.rake:17:in block (2 levels) in <top (required)>' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:240:incall’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:240:in block in execute' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:235:ineach’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:235:in execute' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:179:inblock in invoke_with_call_chain’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/monitor.rb:211:in mon_synchronize' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:172:ininvoke_with_call_chain’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/task.rb:165:in invoke' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:150:ininvoke_task’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:106:in block (2 levels) in top_level' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:106:ineach’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:106:in block in top_level' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:115:inrun_with_threads’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:100:in top_level' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:78:inblock in run’
/home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:176:in standard_exception_handling' /home/diaspora/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/rake/application.rb:75:inrun’
bin/rake:9:in <main>' Couldn't create database for {"adapter"=>"postgresql", "host"=>"db", "port"=>5432, "username"=>"postgres", "password"=>nil, "encoding"=>"unicode", "database"=>"diaspora_development"} rake aborted! NameError: uninitialized constant Rack::SSL /home/diaspora/diaspora/config/initializers/enforce_ssl.rb:6:in<top (required)>’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/engine.rb:652:in block in load_config_initializer' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/notifications.rb:166:ininstrument’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/engine.rb:651:in load_config_initializer' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/engine.rb:616:inblock (2 levels) in class:Engine
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/engine.rb:615:in each' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/engine.rb:615:inblock in class:Engine
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/initializable.rb:30:in instance_exec' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/initializable.rb:30:inrun’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/initializable.rb:55:in block in run_initializers' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/initializable.rb:44:ineach’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/initializable.rb:44:in tsort_each_child' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/initializable.rb:54:inrun_initializers’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/application.rb:352:in initialize!' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/railtie.rb:194:inpublic_send’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/railtie.rb:194:in method_missing' /home/diaspora/diaspora/config/environment.rb:5:in<top (required)>’
/home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/application.rb:328:in require_environment!' /home/diaspora/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/application.rb:457:inblock in run_tasks_blocks’
Tasks: TOP => db:schema:load => environment
(See full trace by running task with --trace)

Did you try this command?