다음과 같이 docker-compose를 사용하여 Postgres DB를 Rails 앱에 연결하려고합니다.
docker-compose.yml
version: '3.8'
services:
db:
image: postgres:12.1
volumes:
- pg-data:/var/lib/postgresql/data
environment:
POSTGRES_PASSWORD: "password"
web:
build: .
command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
volumes:
- .:/rails6
ports:
- "3000:3000"
depends_on:
- db
volumes:
pg-data:
Dockerfile
FROM ruby:2.5
RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
RUN apt-get update -qq && apt-get install -y nodejs postgresql-client yarn
RUN mkdir /rails6
WORKDIR /rails6
RUN gem install bundler:2
COPY package.json yarn.lock ./
RUN yarn install --check-files
COPY Gemfile* ./
RUN bundle install
COPY . /rails6
EXPOSE 3000
# Start the main process.
CMD ["rails", "server", "-b", "0.0.0.0"]
하지만 실행 docker-compose run web rake db:create하면 다음과 같은 오류가 발생합니다.
ActiveRecord::NoDatabaseError: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/postgresql_adapter.rb:50:in `rescue in postgresql_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/postgresql_adapter.rb:33:in `postgresql_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:887:in `new_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:931:in `checkout_new_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:910:in `try_to_checkout_new_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:871:in `acquire_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:593:in `checkout'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:437:in `connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:1119:in `retrieve_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_handling.rb:221:in `retrieve_connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/connection_handling.rb:189:in `connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/postgresql_database_tasks.rb:12:in `connection'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/postgresql_database_tasks.rb:21:in `create'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:126:in `create'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:185:in `block in create_current'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:479:in `block (2 levels) in each_current_configuration'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:476:in `each'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:476:in `block in each_current_configuration'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:475:in `each'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:475:in `each_current_configuration'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/tasks/database_tasks.rb:184:in `create_current'
/usr/local/bundle/gems/activerecord-6.0.3/lib/active_record/railties/databases.rake:39:in `block (2 levels) in <top (required)>'
내가 뭔가를 놓치고 있습니까?
d 나는 매우 유사한 문제가 있었고 DB 호스트를 추가하지 않았다는 것을 깨달았습니다. config/database.yml
default: &default
adapter: postgresql
encoding: unicode
host: db
# For details on connection pooling, see Rails configuration guide
# https://guides.rubyonrails.org/configuring.html#database-pooling
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
username: <%= ENV['MYAPP_DATABASE_USERNAME'] %>
password: <%= ENV['MYAPP_DATABASE_PASSWORD'] %>
"host"의 값은 db입니다. docker-compose.yml
...
services:
db: # <--- right here
image: postgres:12.1
volumes:
- pg-data:/var/lib/postgresql/data
environment:
POSTGRES_PASSWORD: "password"
...
이 기사는 인터넷에서 수집됩니다. 재 인쇄 할 때 출처를 알려주십시오.
침해가 발생한 경우 연락 주시기 바랍니다[email protected] 삭제
몇 마디 만하겠습니다