CODEWITHSUNDEEP
ruby-on-railsdockersolrdocker-composesunspot-rails
jfanals
jfanals

Reputation: 1006

Solr on a separate docker container with sunspot-rails

I am trying to move a working Rails app to docker environment.

Following the UNIX(/docker) philosophy I would like to have each service in its own container.

I managed to get redis and postgres working fine, but I am struggling to get slor and rails talking to each other.

In file app/models/spree/sunspot/search_decorator.rb when the line executes

@solr_search.execute

the following error appear on the console:

Errno::EADDRNOTAVAIL (Cannot assign requested address - connect(2) for "localhost" port 8983):

While researching for a solution I have found people just installing solr in the same container as their rails app. But I would rather have it in a separate container.

Here are my config/sunspot.yml

development:
  solr:
    hostname: localhost
    port: 8983
    log_level: INFO
    path: /solr/development

and docker-compose.yml files

version: '2'
services:
  db:
    (...)

  redis:
    (...)

  solr:
    image: solr:7.0.1

    ports:
      - "8983:8983"

    volumes:
      - solr-data:/opt/solr/server/solr/mycores

    entrypoint:
      - docker-entrypoint.sh
      - solr-precreate
      - mycore

    networks:
      - backend

  app:
    build: .

    env_file: .env

    environment:
      RAILS_ENV: $RAILS_ENV

    depends_on:
      - db
      - redis
      - solr

    ports:
      - "3000:3000"

    tty: true

    networks:
      - backend

volumes:
  solr-data:
  redis-data:
  postgres-data:

networks:
  backend:
    driver: bridge

Any suggestions?

Upvotes: 2

Views: 1556

Answers (2)

Gaurav Koley
Gaurav Koley

Reputation: 146

Your config/sunspot.yml should have the following:

development:
  solr:
    hostname: solr # since our solr instance is linked as solr
    port: 8983
    log_level: WARNING
    solr_home: solr
    path: /solr/mycore 
    # this path comes from the last command of our entrypoint as
    # specified in the last parameter for our solr container

If you see

Solr::Error::Http (RSolr::Error::Http - 404 Not Found
Error:     Not Found

URI: http://localhost:8982/solr/development/select?wt=json

Create a new core using the admin interface at:

http://localhost:8982/solr/#/~cores

or using the following command:

docker-compose exec solr solr create_core -c development

I wrote a blog post on this: https://gaurav.koley.in/2018/searching-in-rails-with-solr-sunspot-and-docker

Hopefully that helps those who come here at later stage.

Upvotes: 8

lifeisfoo
lifeisfoo

Reputation: 16374

When you declare services in a docker-compose file, containers will have their name as hostname. So your solr service will be available, inside the backend network, as solr.

What I'm seeing from your error is that the ruby code is trying to connect at localhost:8983, while it should connect to solr:8983.

Probably you'll need also to change your hostname inside config/sunspot.yml, but I don't work with solr so I'm not sure about this.

Upvotes: 3

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