add http_proxy and create_table_enabled config options

[HLH15]

Add config options for

• http_proxy: DynamoDB http_proxy
• create_table_enabled: to avoid creating tables in DynamoDB directly through Dynamoid. This is useful if one uses external tool to manage DynamoDB tables, eg. terraform.

[andrykonchin]

Could you please fix the failing specs? Current master passes specs successfuly.

[HLH15]

Could you please fix the failing specs? Current master passes specs successfuly.

@andrykonchin This is fixed now!

[andrykonchin]

It looks good to me. But I am wondering what a use case for disabling table creation.

I assume it makes sense to prevent lazy table creation at model saving. In this case, it can be checked right here in the #save method

[HLH15]

It looks good to me. But I am wondering what a use case for disabling table creation.

I assume it makes sense to prevent lazy table creation at model saving. In this case, it can be checked right here in the #save method

In our use case, we have a different pipeline to manage all AWS resources (Terraform). So we'd like to prevent creating new tables in all use cases from Dynamoid.

[andrykonchin]

I see. I would prefer to change the #save method instead of the #create_table. Also, I think we need to add tests on #save and #create and check that table isn't created implicitly.