我通过https://docs.docker.com/compose/rails/#build-the-project（使用Windows 10 Home）关注Docker Rails教程
编辑：请注意，我正在使用 docker-toolbox ，因为Docker需要Windows 10 Pro for Hyper-V，而且我有Windows 10家庭版。我已多次浏览本教程，每次运行docker-compose时，都会挂起并且没有提及应用程序运行的本地端口。我还尝试制作一个新应用并更改docker-compose.yml中的端口号，看看是否能解决问题。
本教程中的所有先前命令都已正常工作，并且在运行docker-compose up命令之前，我已正确编辑了config / database.yml文件。
我删除了图片和所有文件，并从头开始几次。我仍然遇到同样的问题。
以下是教程中的命令：
docker-compose run web rails new . --force --database=postgresql --skip-bundle
docker-compose build
docker-compose up
docker-compose run web rails db:create
这是我的docker-compose.yml文件：
version: '2'
services:
db:
image: postgres
web:
build: .
command: bundle exec rails s -p 3000 -b '0.0.0.0'
volumes:
- .:/myapp
ports:
- "3000:3000"
depends_on:
- db
这是我的Dockerfile：
FROM ruby:2.3.3
RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs
RUN mkdir /myapp
WORKDIR /myapp
ADD Gemfile /myapp/Gemfile
ADD Gemfile.lock /myapp/Gemfile.lock
RUN bundle install
ADD . /myapp
以下是docker-compose的输出：
$ docker-compose up
mydockerbuild_db_1 is up-to-date
Creating mydockerbuild_web_1
Attaching to mydockerbuild_db_1, mydockerbuild_web_1
db_1 | The files belonging to this database system will be owned by user "postgres".
db_1 | This user must also own the server process.
db_1 |
db_1 | The database cluster will be initialized with locale "en_US.utf8".
db_1 | The default database encoding has accordingly been set to "UTF8".
db_1 | The default text search configuration will be set to "english".
db_1 |
db_1 | Data page checksums are disabled.
db_1 |
db_1 | fixing permissions on existing directory /var/lib/postgresql/data ... ok
db_1 | creating subdirectories ... ok
db_1 | selecting default max_connections ... 100
db_1 | selecting default shared_buffers ... 128MB
db_1 | selecting dynamic shared memory implementation ... posix
db_1 | creating configuration files ... ok
db_1 | running bootstrap script ... ok
db_1 | performing post-bootstrap initialization ... ok
db_1 |
db_1 | WARNING: enabling "trust" authentication for local connections
db_1 | You can change this by editing pg_hba.conf or using the option -A, or
db_1 | --auth-local and --auth-host, the next time you run initdb.
db_1 | syncing data to disk ... ok
db_1 |
db_1 | Success. You can now start the database server using:
db_1 |
db_1 | pg_ctl -D /var/lib/postgresql/data -l logfile start
db_1 |
db_1 | ****************************************************
db_1 | WARNING: No password has been set for the database.
db_1 | This will allow anyone with access to the
db_1 | Postgres port to access your database. In
db_1 | Docker's default configuration, this is
db_1 | effectively any other container on the same
db_1 | system.
db_1 |
db_1 | Use "-e POSTGRES_PASSWORD=password" to set
db_1 | it in "docker run".
db_1 | ****************************************************
db_1 | waiting for server to start....LOG: database system was shut down at 2017-02-14 18:56:05 UTC
db_1 | LOG: MultiXact member wraparound protections are now enabled
db_1 | LOG: database system is ready to accept connections
db_1 | LOG: autovacuum launcher started
db_1 | done
db_1 | server started
db_1 | ALTER ROLE
db_1 |
db_1 |
db_1 | /usr/local/bin/docker-entrypoint.sh: ignoring /docker-entrypoint- initdb.d/*
db_1 |
db_1 | LOG: received fast shutdown request
db_1 | LOG: aborting any active transactions
db_1 | LOG: autovacuum launcher shutting down
db_1 | LOG: shutting down
db_1 | waiting for server to shut down....LOG: database system is shut down
db_1 | done
db_1 | server stopped
db_1 |
db_1 | PostgreSQL init process complete; ready for start up.
db_1 |
db_1 | LOG: database system was shut down at 2017-02-14 18:56:06 UTC
db_1 | LOG: MultiXact member wraparound protections are now enabled
db_1 | LOG: database system is ready to accept connections
db_1 | LOG: autovacuum launcher started
db_1 | LOG: received smart shutdown request
db_1 | LOG: autovacuum launcher shutting down
db_1 | LOG: shutting down
db_1 | LOG: database system is shut down
db_1 | LOG: database system was shut down at 2017-02-14 19:06:12 UTC
db_1 | LOG: MultiXact member wraparound protections are now enabled
db_1 | LOG: database system is ready to accept connections
db_1 | LOG: autovacuum launcher started
db_1 | ERROR: database "myapp_development" already exists
db_1 | STATEMENT: CREATE DATABASE "myapp_development" ENCODING = 'unicode'
db_1 | ERROR: database "myapp_test" already exists
db_1 | STATEMENT: CREATE DATABASE "myapp_test" ENCODING = 'unicode'
db_1 | ERROR: database "myapp_development" already exists
db_1 | STATEMENT: CREATE DATABASE "myapp_development" ENCODING = 'unicode'
db_1 | ERROR: database "myapp_test" already exists
db_1 | STATEMENT: CREATE DATABASE "myapp_test" ENCODING = 'unicode'
db_1 | ERROR: database "myapp_development" already exists
db_1 | STATEMENT: CREATE DATABASE "myapp_development" ENCODING = 'unicode'
db_1 | ERROR: database "myapp_test" already exists
db_1 | STATEMENT: CREATE DATABASE "myapp_test" ENCODING = 'unicode'