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nginx-gridfs

Authors:Mike Dirolf <mike@dirolf.com>, Chris Triolo, and everyone listed in the Credits section below

Note from Mike: I'm no longer actively maintaining this project. If you're interested in becoming the new maintainer please shoot me an email.

About

nginx-gridfs is an Nginx module to serve content directly from MongoDB's GridFS.

Version

The minor version will be incremented with each release until a stable 1.0 is reached. To check out a particular version:

$ git checkout v0.8

Dependencies

nginx-gridfs requires the Mongo-C-Driver which is a submodule to this repository. To check out the submodule (after cloning this repository), run:

$ git submodule init
$ git submodule update

Installation

Installing Nginx modules requires rebuilding Nginx from source:

  • Grab the Nginx source and unpack it.

  • Clone this repository somewhere on your machine.

  • Check out the required submodule, as described above.

  • Change to the directory containing the Nginx source.

  • Now build:

    $ ./configure --add-module=/path/to/nginx-gridfs/source/
$ make
$ make install

Configuration

Directives

gridfs

syntax:gridfs DB_NAME [root_collection=ROOT] [field=QUERY_FIELD] [type=QUERY_TYPE] [user=USERNAME] [pass=PASSWORD]
default:NONE
context:location

This directive enables the nginx-gridfs module at a given location. The only required parameter is DB_NAME to specify the database to serve files from.

  • root_collection= specify the root_collection(prefix) of the GridFS. default: fs
  • field= specify the field to query. Supported fields include _id and filename. default: _id
  • type= specify the type to query. Supported types include objectid, string and int. default: objectid
  • user= specify a username if your mongo database requires authentication. default: NULL
  • pass= specify a password if your mongo database requires authentication. default: NULL

mongo

When connecting to a single server:

:syntax: *mongo MONGOD_HOST*
:default: *127.0.0.1:27017*
:context: location

When connecting to a replica set:

:syntax: *mongo REPLICA_SET_NAME* *MONGOD_SEED_1* *MONGOD_SEED_2*
:default: *127.0.0.1:27017*
:context: location

This directive specifies a mongod or replica set to connect to. MONGOD_HOST should be in the form of hostname:port. REPLICA_SET_NAME should be the name of the replica set to connect to.

If this directive is not provided, the module will attempt to connect to a MongoDB server at 127.0.0.1:27017.

Sample Configurations

Here is a sample configuration in the relevant section of an nginx.conf:

location /gridfs/ {
    gridfs my_app;
}

This will set up Nginx to serve the file in gridfs with _id ObjectId("a12...") for any request to /gridfs/a12...

Here is another configuration:

location /gridfs/ {
    gridfs my_app field=filename type=string;
    mongo 127.0.0.1:27017;
}

This will set up Nginx to serve the file in gridfs with filename foo for any request to /gridfs/foo

Here's how to connect to a replica set called "foo" with two seed nodes:

location /gridfs/ {
    gridfs my_app field=filename type=string;
    mongo "foo"
          10.7.2.27:27017
          10.7.2.28:27017;
}

Here is another configuration:

location /gridfs/ {
    gridfs my_app
           root_collection=pics
           field=_id
           type=int
           user=foo
           pass=bar;
    mongo 127.0.0.1:27017;
}

This will set up Nginx to communicate with the mongod at 127.0.0.1:27017 and authenticate use of database my_app with username/password combo foo/bar. The gridfs root_collection is specified as pics. Nginx will then serve the file in gridfs with _id 123... for any request to /gridfs/123...

Known Issues / TODO / Things You Should Hack On

  • HTTP range support for partial downloads
  • Better error handling / logging

Credits

  • Sho Fukamachi (sho) - towards compatibility with newer boost versions
  • Olivier Bregeras (stunti) - better handling of binary content
  • Chris Heald (cheald) - better handling of binary content
  • Paul Dlug (pdlug) - mongo authentication
  • Todd Zusman (toddzinc) - gzip handling
  • Kyle Banker (banker) - replica set support

License

nginx-gridfs is dual licensed under the Apache License, Version 2.0 and the GNU General Public License, either version 2 or (at your option) any later version. See LICENSE for details.