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Fog::Google

The main maintainers for the Google sections are @icco, @Temikus and @plribeiro3000. Please send pull requests to them.

Important notices

• As of v1.0.0, fog-google includes google-api-client as a dependency, there is no need to include it separately anymore.

• Fog-google is currently supported on Ruby 2.6+ See supported ruby versions for more info.

See MIGRATING.md for migration between major versions.

Sponsors

We're proud to be sponsored by MeisterLabs who are generously funding our CI stack. A small message from them:

"As extensive users of fog-google we are excited to help! Meister is the company behind the productivity tools MindMeister, MeisterTask, and MeisterNote. We are based in Vienna, Austria and we have a very talented international team who build our products on top of Ruby on Rails, Elixir, React and Redux. We are constantly looking for great talent in Engineering, so If you feel like taking on a new Ruby or Elixir challenge. get in touch, open jobs can be found here."

Usage

Storage

There are two ways to access Google Cloud Storage. The old S3 API and the new JSON API. Fog::Storage::Google will automatically direct you to the appropriate API based on the credentials you provide it.

• The XML API is almost identical to S3. Use Google's interoperability keys to access it.
• The new JSON API is faster and uses auth similarly to the rest of the Google Cloud APIs using a service account private key.

Compute

Google Compute Engine is a Virtual Machine hosting service. Currently it is built on version v1 of the GCE API.

As of 2017-12-15, we are still working on making Fog for Google Compute engine (Fog::Compute::Google) feature complete. If you are using Fog to interact with GCE, please keep Fog up to date and file issues for any anomalies you see or features you would like.

SQL

Fog implements v1beta4 of the Google Cloud SQL Admin API. As of 2017-11-06, Cloud SQL is mostly feature-complete. Please file issues for any anomalies you see or features you would like as we finish adding remaining features.

DNS

Fog implements v1 of the Google Cloud DNS API. We are always looking for people to improve our code and test coverage, so please file issues for any anomalies you see or features you would like.

Monitoring

Fog implements v3 of the Google Cloud Monitoring API. As of 2017-10-05, we believe Fog for Google Cloud Monitoring is feature complete for metric-related resources and are working on supporting groups.

We are always looking for people to improve our code and test coverage, so please file issues for any anomalies you see or features you would like.

Pubsub

Fog mostly implements v1 of the Google Cloud Pub/Sub API; however some less common API methods are missing. Pull requests for additions would be greatly appreciated.

Installation

Add the following two lines to your application's Gemfile:

gem 'fog-google'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fog-google

Testing

Integration tests can be kicked off via following rake tasks. Important note: As those tests are running against real API's YOU WILL BE BILLED.

rake test               # Run all integration tests
rake test:parallel      # Run all integration tests in parallel

rake test:compute       # Run Compute API tests
rake test:monitoring    # Run Monitoring API tests
rake test:pubsub        # Run PubSub API tests
rake test:sql           # Run SQL API tests
rake test:storage       # Run Storage API tests

Since some resources can be expensive to test, we have a self-hosted CI server. Due to security considerations a repo maintainer needs to add the label integrate to kick off the CI.

Setup

Credentials

Follow the instructions to generate a private key. A sample credentials file can be found in .fog.example in this directory:

cat .fog.example >> ~/.fog # appends the sample configuration
vim ~/.fog                 # edit file with yout config

As of 1.9.0 fog-google supports Google application default credentials (ADC) The auth method uses Google::Auth.get_application_default under the hood.

Example workflow for a GCE instance with service account scopes defined:

> connection = Fog::Compute::Google.new(:google_project => "my-project", :google_application_default => true)
=> #<Fog::Compute::Google::Real:32157700...
> connection.servers
=> [  <Fog::Compute::Google::Server ...  ]

CarrierWave integration

It is common to integrate Fog with Carrierwave. Here's a minimal config that's commonly put in config/initializers/carrierwave.rb:

CarrierWave.configure do |config|
    config.fog_provider = 'fog/google'
    config.fog_credentials = {
        provider: 'Google',
        google_project: Rails.application.secrets.google_cloud_storage_project_name,
        google_json_key_string: Rails.application.secrets.google_cloud_storage_credential_content
        # can optionally use google_json_key_location if using an actual file;
    }
    config.fog_directory = Rails.application.secrets.google_cloud_storage_bucket_name
end

This needs a corresponding secret in config/secrets.yml, e.g.:

development:
    google_cloud_storage_project_name: your-project-name
    google_cloud_storage_credential_content: '{
        "type": "service_account",
        "project_id": "your-project-name",
        "private_key_id": "REDACTED",
        "private_key": "-----BEGIN PRIVATE KEY-----REDACTED-----END PRIVATE KEY-----\n",
        "client_email": "[email protected]",
        "client_id": "REDACTED",
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "token_uri": "https://accounts.google.com/o/oauth2/token",
        "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
        "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/REDACTED%40your-project-name.iam.gserviceaccount.com"
    }'
    google_cloud_storage_bucket_name: your-bucket-name

SSH-ing into instances

If you want to be able to bootstrap SSH-able instances, (using servers.bootstrap,) be sure you have a key in ~/.ssh/id_rsa and ~/.ssh/id_rsa.pub

Quickstart

Once you've specified your credentials, you should be good to go!

$ bundle exec pry
[1] pry(main)> require 'fog/google'
=> true
[2] pry(main)> connection = Fog::Compute::Google.new
[3] pry(main)> connection.servers
=> [  <Fog::Compute::Google::Server
    name="xxxxxxx",
    kind="compute#instance",

Supported Ruby Versions

Fog-google is currently supported on Ruby 2.6+.

In general we support (and run our CI) for Ruby versions that are actively supported by Ruby Core - that is, Ruby versions that are not end of life. Older versions of Ruby may still work, but are unsupported and not recommended. See https://www.ruby-lang.org/en/downloads/branches/ for details about the Ruby support schedule.

Contributing

See CONTRIBUTING.md in this repository.