【发布时间】:2020-02-27 09:48:29
【问题描述】:
我有几个通过 docker-compose 文件一起运行的 docker 服务。
version: '3'
services:
redis-server:
image: redis
scraper:
image: davidgeismar/artifacts-scraper:without-db
command: 'ruby ./scrape_sources.rb'
environment:
- REDIS_URL=redis://redis-server:6379/0
- ARTIFACTS_ENV=docker_development
- DATA_API_BASE=http://data_api:3000
volumes:
- .:/usr/src/artifacts_scraper
depends_on:
- data_api
- redis-server
data_api:
image: davidgeismar/artifacts_data_api:latest
command: bundle exec rails s -p 3000 -b '0.0.0.0'
volumes:
- .:/artifacts_data_api
environment:
- RAILS_ENV=docker_development
- SECRET_KEY_BASE=docker_development_secret
sidekiq:
build: .
command: 'bundle exec sidekiq -r ./artifacts_scraper.rb 2>&1 | tee ./log/sidekiq.log'
volumes:
- ./:/usr/src/artifacts_scraper
environment:
- REDIS_URL=redis://redis-server:6379/0
- ARTIFACTS_ENV=docker_development
- DATA_API_BASE=http://data_api:3000
depends_on:
- redis-server
- data_api
问题在于 data_api(一个 rails api)服务在我使用它的 docker 文件单独运行时运行良好:
FROM ruby:2.6.3
RUN apt-get update -qq && apt-get install -y nodejs postgresql-client
RUN mkdir /artifacts_data_api
WORKDIR /artifacts_data_api
COPY Gemfile /artifacts_data_api/Gemfile
COPY Gemfile.lock /artifacts_data_api/Gemfile.lock
RUN gem install bundler
RUN gem install rails
RUN bundle install
COPY . /artifacts_data_api
# Add a script to be executed every time the container starts.
COPY entrypoint.sh /usr/bin/
RUN chmod +x /usr/bin/entrypoint.sh
ENTRYPOINT ["/usr/bin/entrypoint.sh"]
EXPOSE 3000
# Start the main process.
CMD ["rails", "server", "-b", "0.0.0.0"]
但是,当我通过 docker-compose 文件与其他服务一起运行它时:docker-compose pull && docker-compose up --build
我明白了:
data_api_1 | bundler: failed to load command: rails (/usr/local/bundle/ruby/2.6.0/bin/rails)
data_api_1 | Bundler::GemNotFound: Could not find concurrent-ruby-1.1.5 in any of the sources
data_api_1 | /usr/local/bundle/gems/bundler-2.1.4/lib/bundler/spec_set.rb:86:in `block in materialize'
我不知道该服务如何在自己启动时运行良好,而在通过 docker-compose 与其他服务一起运行时启动失败。
你可以在这里找到 github 项目:
https://github.com/davidgeismar/artifacts-scraper/tree/removing-db https://github.com/davidgeismar/artifacts_data_api
在 docker hub 上:
https://hub.docker.com/repository/docker/davidgeismar/artifacts-scraper
https://hub.docker.com/repository/docker/davidgeismar/artifacts_data_api
【问题讨论】:
-
我很久以前就构建了它,以使 Rails 在容器内启动,大部分问题来自 GEM envs,看看:github.com/noxsnono/Docker/blob/master/ruby232_sql_rails/…
-
您的
docker-compose.yml指定了一个不同的command(带有重复的bundle exec),并且正在用volumes:覆盖您的应用程序的Gemfile等内容。从docker-compose.yml文件中删除这些行有帮助吗? -
entrypoint.sh 中有什么?
标签: docker docker-compose rails-api docker-image