rails6とdockerでlocalhostにアクセスできない

Question

（ホストOS）windows10
rails6
ruby2.7
postgresql
UTF-8

dockerでサーバーを起動してlocalhostにアクセスしたいのですが
「このサイトにアクセスできませんlocalhost で接続が拒否されました。」
と言われてしまいます。

docker-compose up
Starting myapp_db_1 ... done
Starting myapp_web_1 ... done
Attaching to myapp_db_1, myapp_web_1
db_1   |
db_1   | PostgreSQL Database directory appears to contain a database; Skipping initialization   
db_1   |
db_1   | 2020-09-27 09:05:55.252 UTC [1] LOG:  starting PostgreSQL 13.0 (Debian 13.0-1.pgdg100+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit
db_1   | 2020-09-27 09:05:55.253 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432   
db_1   | 2020-09-27 09:05:55.254 UTC [1] LOG:  listening on IPv6 address "::", port 5432        
db_1   | 2020-09-27 09:05:55.260 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
db_1   | 2020-09-27 09:05:55.266 UTC [24] LOG:  database system was shut down at 2020-09-27 09:05:46 UTC
web_1  | => Booting Puma
web_1  | => Rails 6.0.3.2 application starting in development
web_1  | => Run `rails server --help` for more startup options
web_1  | Puma starting in single mode...
web_1  | * Version 4.3.6 (ruby 2.7.1-p83), codename: Mysterious Traveller
web_1  | * Min threads: 5, max threads: 5
web_1  | * Environment: development
web_1  | * Listening on tcp://0.0.0.0:3000

おそらく「database system was shut down at 2020-09-27 08:48:28 UTC」が原因ですがどうすれば解決するかわかりません。アドバイスお願いします。

docker-compose ps
指定されたパスが見つかりません。
     Name                    Command               State           Ports
---------------------------------------------------------------------------------
myapp_db_1    docker-entrypoint.sh postgres    Up      5432/tcp
myapp_web_1   entrypoint.sh bundle exec  ...   Up      0.0.0.0:3000->3000/tcp

FROM ruby:2.7.1
RUN apt-get update -qq && apt-get install -y nodejs postgresql-client

RUN apt-get update && apt-get install -y curl apt-transport-https wget && \
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 && apt install -y yarn
RUN curl -sL https://deb.nodesource.com/setup_7.x | bash - && \
apt-get install nodejs

RUN mkdir /myapp
WORKDIR /myapp
COPY Gemfile /myapp/Gemfile
COPY Gemfile.lock /myapp/Gemfile.lock
RUN bundle install
COPY . /myapp

# 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 3000

# Start the main process.
CMD ["rails", "server", "-b", "0.0.0.0"]

version: '3'
services:
  db:
    image: postgres
    volumes:
      - web_postgre:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: 3246xkxh
  web:
    build: .
    command: ["bundle", "exec", "rails", "s", "-p", "3000", "-b", "0.0.0.0"]
    volumes:
      - .:/myapp
    ports:
      - "3000:3000"
    depends_on:
      - db

volumes:
  web_postgre:
    external: true

Answer 1

docker toolboxの場合は

docker-machine ip default

でIPアドレスを確認し
http://<IPアドレス>:3000/
でやるべきでした

ただ代わりにWebpacker::Manifest::MissingEntryErrorというエラーが出てしまいました。別に質問させていただきます。

https://teratail.com/questions/294478

Answer 2

もし、web_postgre 内に必要なデータを残していなければ、
一度 中身を削除して起動し直すと改善しませんか？

docker-compose down -v
rm -rf web_postgre
docker-compose up

参考: docker-compose down | Docker ドキュメント

これで改善した場合、
何かしらの理由で web_postgre 内のデータが異常な状態になっていたことが考えられます