rails new -n a11yist -d sqlite3 --skip-action-mailbox --css bootstrap --js esbuild .

Dockerfile

@@ -0,0 +1,62 @@
+FROM ruby:3.3
+
+LABEL maintainer='david@hohl.cloud'
+
+ARG NAME=app
+ARG UID=1000
+ARG GID=1000
+ARG APP_PORT=3000
+
+ARG INSTALL_DIR=/${NAME}
+
+WORKDIR ${INSTALL_DIR}
+
+ENV GEM_HOME=${INSTALL_DIR}/.bundle
+
+ENV \
+  LANG=C.UTF-8 \
+  INSTALL_DIR=${INSTALL_DIR} \
+  RAILS_ENV=development \
+  TZ=Europe/Zurich \
+  PATH=${INSTALL_DIR}/bin:$GEM_HOME/bin:$GEM_HOME/gems/bin:$PATH \
+  EDITOR=vim
+
+RUN \
+  ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && \
+  echo $TZ > /etc/timezone && \
+  addgroup --gid ${GID} ${NAME} && \
+  adduser \
+    --gecos GECOS \
+    --home /home/${NAME} \
+    --uid ${UID} \
+    --gid ${GID} \
+    --disabled-password \
+    --disabled-login \
+    --shell /bin/bash \
+    ${NAME} && \
+  apt-get update && \
+  apt-get install -yqq --no-install-recommends \
+    gnupg2 \
+    curl && \
+  curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
+  echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list && \
+  apt-get update -yqq && \
+  apt-get install -yqq --no-install-recommends \
+    sqlite3 nodejs npm sassc yarn && \
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
+  truncate -s 0 /var/log/*log && \
+  gem update --system && \
+  bundle config set app_config ${GEM_HOME}
+  
+USER ${NAME}
+
+EXPOSE ${APP_PORT}
+
+ENTRYPOINT [ "bin/entrypoint" ]
+
+ENV SERVER_PORT=$APP_PORT
+
+# Using variables in command list is not possible:
+# https://stackoverflow.com/questions/40454470/how-can-i-use-a-variable-inside-a-dockerfile-cmd
+CMD rails server --binding 0.0.0.0 --no-daemon --port $SERVER_PORT