website: FROM ruby:3.2.2 , Gemfile added

website/docker/Dockerfile

@@ -14,27 +14,20 @@
 # limitations under the License.
 #
 
-FROM ruby:2.7.7
+FROM ruby:3.2.2
 
-RUN apt-get update \
-    && apt-get upgrade --yes \
-    && apt-get autoremove --purge --yes \
+RUN    apt-get update \
     && apt-get install -y --no-install-recommends \
-        software-properties-common make g++ graphicsmagick-imagemagick-compat\
+        software-properties-common make g++ graphicsmagick-imagemagick-compat \
+    && apt-get autoremove --purge --yes \
     && apt-get clean \
-    && rm -rf /var/lib/apt/lists/* \
-    && gem install bundler -v 2.1.4 --no-document \
-    && gem install ffi -v 1.16.3 --no-document  \
-    && gem install public_suffix -v 5.1.1 --no-document \
-    && gem list '^jekyll$' --remote --all \
-    && gem install jekyll -v 3.9.5 --no-document \
-    && gem install nokogiri -v 1.15.5 --no-document \
-    && gem install faraday-net_http -v 3.0.2 --no-document \
-    && gem install faraday -v 2.8.1 --no-document  \
-    && gem install activesupport -v 7.1.4 --no-document \
-    && gem list '^github-pages$' --remote --all \
-    && gem install github-pages -v 231 --no-document \
-    && echo 'done'
+    && rm -rf /var/lib/apt/lists/*
+
+COPY Gemfile ./Gemfile
+
+RUN    cat Gemfile \
+    && bundle install \
+    && cat Gemfile.lock
 
 WORKDIR /website/
 

website/docker/Gemfile

@@ -0,0 +1,5 @@
+# This file should by in sync with https://github.com/thingsboard/thingsboard.github.io/blob/master/Gemfile
+source "https://rubygems.org"
+
+gem "github-pages", "~> 232", group: :jekyll_plugins
+gem 'webrick', "~> 1.8.1"