[WIP] add endpoints subcollections

[lpichler]

POST http://localhost:3000/api/providers

{"name":"Test azure1","type":"ManageIQ::Providers::Azure::CloudManager","credentials":{"userid":"foo","password":"bar"},"endpoints":[{"url":"www.endpoints.com"}]}

cc @Hyperkid123

[miq-bot]

Checked commit lpichler@47ca889 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
4 files checked, 3 offenses detected

app/controllers/api/subcollections/endpoints.rb

• ❗ - Line 13, Col 7 - Style/RescueStandardError - Avoid rescuing without specifying an error class.

config/api.yml

• ⚠️ - Line 36, Col 7 - indentation - wrong indentation: expected 4 but found 6
• ⚠️ - Line 41, Col 9 - indentation - wrong indentation: expected 6 but found 8

[Hyperkid123]

@lpichler

Ok so i found more sub-collections and another relations that we will need to create/edit providers via API

• connection_configurations
  • this is required for openstack and wmvare cloud providers
  • its similar to endpoints, in fact it connections are listed inside endpoints
  • according to API docs you should be able to create entity with this sub-collection but you cannot expand it
  • this should include these connections for cloud providers:
    • endpoints
    • amqp
    • ssh key pair
• authentication_userid
  • is required for editing amazon/azure connection
• keystone_v3_domain_id
  • required for adding/editing OpenStack cloud provider

[lpichler]

closing as discussed with @Hyperkid123 there is work in progress about it.