Dockerfile in squib-0.15.3 vs Dockerfile in squib-0.16.0.pre.preview1

@@ -1,25 +1,27 @@
-FROM ruby:2.5-alpine
+# This is the official Squib Docker image.
+#
+FROM ruby:2.7-slim
 WORKDIR /usr/src/app
 
 LABEL org.squib.url=http://squib.rocks \
       org.squib.github=https://github.com/andymeneely/squib
 
-RUN apk --no-cache add --update \
+RUN apt-get update && \
+    apt-get install -y \
+    libgirepository1.0-dev \
+    build-essential \
     ruby-dev \
-    build-base \
-    libxml2-dev \
-    libxslt-dev \
-    pcre-dev \
-    libffi-dev \
-    cairo
+    ruby \
+    ruby-gdk-pixbuf2 \
+    git \
+    fonts-open-sans
 
-# Just for devving on
-COPY . /app
+# Build the current directory of Squib
+COPY . /usr/src/app
+RUN rm -f /usr/src/app/Gemfile.lock
+RUN gem install bundler
+RUN bundle install
+RUN bundle exec rake install
 
-CMD ["sh"]
+# ENTRYPOINT [ "sh" ]
 
-# RUN gem install \
-#     squib \
-#     -- --use-system-libraries
-
-# NOTE: STILL UNDER DEVELOPMENT! Don't use this just yet.