ci: 👷 Github actions setup, heroku deployment

Redis cache store, Production Dockerfile, Github actions workflow

Dockerfile

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+FROM ruby:2.6.3-alpine
+
+ENV APP_PATH /usr/src/app
+ENV BUNDLE_VERSION 2.1.4
+ENV RAILS_LOG_TO_STDOUT true
+ENV RAILS_ENV production
+
+WORKDIR $APP_PATH
+
+EXPOSE $RAILS_PORT
+
+ENV ALPINE_MIRROR "http://dl-cdn.alpinelinux.org/alpine"
+RUN echo "${ALPINE_MIRROR}/v3.11/main/" >> /etc/apk/repositories
+
+RUN apk -U add --no-cache \
+build-base \
+postgresql-dev \
+postgresql-client \
+tzdata \
+nodejs --repository="http://dl-cdn.alpinelinux.org/alpine/v3.11/main/" \
+yarn
+
+COPY ./entrypoint.sh /usr/bin/entrypoint.sh
+RUN chmod +x /usr/bin/entrypoint.sh
+
+RUN gem install bundler --version "$BUNDLE_VERSION"
+
+COPY . .
+
+RUN bundle install --jobs 20 --retry 5
+
+RUN yarn
+
+ENTRYPOINT ["entrypoint.sh"]
+
+CMD ["rails", "s", "-b", "0.0.0.0"]