active_record_gem.rb on Docker

commands

% docker build -t ar-test .    

% docker run -v $(pwd):/app -it ar-test bash
root@05dacc65e044:/app# ruby active_record_gem.rb 

# note:
# download active_record_gem.rb from below:
# https://github.com/rails/rails/blob/v7.1.1/guides/bug_report_templates/active_record_gem.rb

Dockerfile

FROM ruby:3.2.2-slim-bullseye

RUN apt-get update -qq && apt-get install -y sqlite3 libsqlite3-dev build-essential vim locales
RUN gem install bundler

RUN sed -i -E 's/# (ja_JP.UTF-8)/\1/' /etc/locale.gen && locale-gen
ENV LANG ja_JP.UTF-8

WORKDIR /app

COPY . .