Question 1

How do I use fog to manage AWS EC2 instances?

Accepted Answer

Initialize a compute connection with Fog::Compute.new using AWS provider credentials, then use the servers collection to create and manage instances. The interactive fog console provides a hands-on way to learn, as shown in the README examples.

Question 2

fog vs aws-sdk-ruby: which is better for AWS projects?

Accepted Answer

Use fog if you need multi-cloud support or a unified interface across providers; aws-sdk-ruby is better for AWS-specific features and might have more up-to-date API coverage. fog adds abstraction overhead but simplifies switching clouds.

Question 3

How to mock cloud storage in tests with fog?

Accepted Answer

Call Fog.mock! before your tests to enable in-memory mocks, allowing you to simulate storage operations without real cloud costs. The README mentions this makes testing a breeze, though unimplemented mocks may raise errors.

Question 4

Does fog support Google Cloud Platform?

Accepted Answer

Check the provider documentation on fog.github.io; support varies, and you might need specific gems like fog-google. Historically, fog aims for multi-provider coverage, but some newer services may be limited.

Question 5

How to handle authentication for multiple providers in fog?

Accepted Answer

Create separate connection objects for each provider with their specific credentials, such as using Fog::Compute.new with different :provider options. The README shows examples for AWS and Rackspace with key-based authentication.

Question 6

Why is fog slow to load in my Ruby project?

Accepted Answer

This is likely due to dependency bloat; the README advises using metagems like fog-aws instead of the full fog gem to reduce load time and unnecessary dependencies, especially for single-provider setups.

fog

What is fog?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions