upgraded rails, mysql and redis versions

Author: damalis

docker/8.0/Dockerfile

@@ -0,0 +1,17 @@
+FROM ruby:3.4.4
+
+RUN apt-get update -qq && apt-get install -y nodejs
+
+COPY Gemfile /app/Gemfile
+
+WORKDIR /app
+
+RUN bundle install
+
+# Add a script to be executed every time the container starts.
+COPY entrypoint.sh /usr/bin/
+
+RUN chmod +x /usr/bin/entrypoint.sh
+
+ENTRYPOINT ["entrypoint.sh"]
+EXPOSE 9000

docker/8.0/Gemfile

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+source 'https://rubygems.org'
+gem 'rails', '~> 8.0', '>= 8.0.2'
+gem 'redis', '~> 5.4'
+gem 'mysql2', '~> 0.5.6'

docker/8.0/entrypoint.sh

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+#!/bin/bash
+set -e
+
+# Remove a potentially pre-existing server.pid for Rails.
+rm -f /app/tmp/pids/server.pid
+
+# Then exec the container's main process (what's set as CMD in the Dockerfile).
+exec "$@"