herokuにデプロイできない

実現したいこと

Herokuにデプロイしたいのですが、
We're sorry, but something went wrong.If you are the application owner check the logs for more information.というエラーが出ているので、解決したい

前提

Dockerでrails(7.0.4) + postgresqlの環境構築をしたアプリを作成しています。

発生している問題・エラーメッセージ

herokuのログは以下のようになっています。

2023-05-15T21:06:48.072789+00:00 app[api]: Release v8 created by user heroku-postgresql@addons.heroku.com
2023-05-15T21:06:48.072789+00:00 app[api]: Update DATABASE by heroku-postgresql by user heroku-postgresql@addons.heroku.com
2023-05-15T21:06:49.173898+00:00 heroku[web.1]: Restarting
2023-05-15T21:06:49.187869+00:00 heroku[web.1]: State changed from up to starting
2023-05-15T21:06:50.040478+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2023-05-15T21:06:50.075166+00:00 app[web.1]: - Gracefully stopping, waiting for requests to finish
2023-05-15T21:06:50.075815+00:00 app[web.1]: Exiting
2023-05-15T21:06:50.236861+00:00 heroku[web.1]: Process exited with status 143
2023-05-15T21:07:08.674312+00:00 heroku[web.1]: Starting process with command `rails server -b 0.0.0.0`
2023-05-15T21:07:11.586711+00:00 app[web.1]: => Booting Puma
2023-05-15T21:07:11.586748+00:00 app[web.1]: => Rails 7.0.4.2 application starting in production
2023-05-15T21:07:11.586749+00:00 app[web.1]: => Run `bin/rails server --help` for more startup options
2023-05-15T21:07:13.001157+00:00 app[web.1]: Puma starting in single mode...
2023-05-15T21:07:13.001172+00:00 app[web.1]: * Puma version: 5.6.5 (ruby 3.1.2-p20) ("Birdie's Version")
2023-05-15T21:07:13.001174+00:00 app[web.1]: *  Min threads: 5
2023-05-15T21:07:13.001174+00:00 app[web.1]: *  Max threads: 5
2023-05-15T21:07:13.001174+00:00 app[web.1]: *  Environment: production
2023-05-15T21:07:13.001175+00:00 app[web.1]: *          PID: 2
2023-05-15T21:07:13.001361+00:00 app[web.1]: * Listening on http://0.0.0.0:14464
2023-05-15T21:07:13.003127+00:00 app[web.1]: Use Ctrl-C to stop
2023-05-15T21:07:13.126760+00:00 heroku[web.1]: State changed from starting to up
2023-05-16T00:33:11.136056+00:00 heroku[router]: at=info method=GET path="/" host=sample_app.herokuapp.com request_id=c0554b49-abf5-4bc6-bc39-43a9d0771a66 fwd="27.85.206.14" dyno=web.1 connect=0ms service=614ms status=500 bytes=1827 protocol=https

該当のソースコード

Dockerfile
1FROM ruby:3.1.2
2
3ENV RAILS_ENV=production
4
5ENV TZ Asia/Tokyo
6RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs && apt-get install -y vim && apt-get install -y postgresql-client
7
8RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
9  && echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list \
10  && apt-get update \
11  && apt-get install -y yarn
12
13WORKDIR /sample_app
14COPY Gemfile Gemfile.lock /sample_app/
15RUN bundle install
16COPY . /sample_app
17COPY entrypoint.sh /usr/bin/
18RUN chmod +x /usr/bin/entrypoint.sh
19# ENTRYPOINTとCMDを統合
20ENTRYPOINT ["entrypoint.sh"]
21EXPOSE 3000
22CMD ["rails", "server", "-b", "0.0.0.0"]

database.yml
1default: &default
2  adapter: postgresql
3  encoding: unicode
4  host: db
5  username: postgres
6  password: password #これは、docker-compose.ymlで指定したパスワード
7  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
8
9development:
10  <<: *default
11  database: sample_app_development
12
13test:
14  <<: *default
15  database: sample_app_test
16
17production:
18  <<: *default
19  database: sample_app_production
20  username: sample_app
21  password: <%= ENV["SAMPLE_APP_DATABASE_PASSWORD"] %>
22  url: <%= ENV['DATABASE_URL'] %>