Updating panamax ruby base image to be smaller.

Dockerfile

@@ -1,11 +1,34 @@
-FROM centurylink/ruby-base:2.2
+FROM gliderlabs/alpine:3.1
 
-RUN apk --update  \
-        add sqlite-dev ca-certificates
+MAINTAINER CenturyLink Labs <[email protected]>
 
+
+ENV RUBY_MAJOR 2.2
+ENV RUBY_VERSION 2.2.0
+RUN echo 'gem: --no-document' >> /.gemrc
 ADD . /tmp
 WORKDIR /tmp
-RUN bundle install --without development
+
+
+RUN apk-install curl \
+   libffi \
+   build-base \
+   openssl-dev \
+   gdbm \
+   ncurses \
+   readline \
+   yaml \
+   sqlite-dev \
+   ca-certificates \
+   tzdata \
+   make \
+   ruby-bundler \
+   ruby-dev  \
+   && gem install --no-document bundler \
+   && bundle install --without development \
+   && apk  del build-base make ncurses
+
+CMD [ "irb" ]
 
 # These instructions are only executed when this image is used as the base for
 # another image. They will be executed immediately after the FROM instruction

Gemfile

@@ -5,7 +5,6 @@ gem 'rails', '4.1.7'
 gem 'puma', '2.8.2'
 gem 'faraday', '0.8.9'
 gem 'activeresource', '4.0.0'
-gem 'tzinfo-data', '1.2015.2'
 
 # UI Gems
 gem 'ctl_base_ui', '0.0.6'

Gemfile.lock

@@ -183,8 +183,6 @@ GEM
     tins (1.3.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2015.2)
-      tzinfo (>= 1.0.0)
     uglifier (2.5.1)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
@@ -225,7 +223,6 @@ DEPENDENCIES
   sinatra (= 1.4.5)
   sqlite3 (= 1.3.9)
   teaspoon (= 0.8.0)
-  tzinfo-data (= 1.2015.2)
   uglifier (= 2.5.1)
   webmock (= 1.20.4)
   zeroclipboard-rails (= 0.1.0)