Able to set custom AWS S3 settings for coverband

[a0s]

Add support for separate AWS S3 settings of region/bucket/key/secret for coverband in case when we don't want to use default AWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY.

Old behaviour, reading from AWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY:

Coverband.configure do |config|
  ...
  config.s3_bucket = 'bucket_name'
  ...
end

New behaviour, set all settings for coverband only:

Coverband.configure do |config|
  ...
  config.s3_bucket = ENV['COVERBAND_AWS_BUCKET']
  config.s3_region = ENV['COVERBAND_AWS_REGION']
  config.s3_access_key_id = ENV['COVERBAND_AWS_KEY']
  config.s3_secret_access_key = ENV['COVERBAND_AWS_SECRET']
  ...
end

[danmayer]

I will address this in a quick follow up after getting 2.0 released...

PR for Coverband 2.0! Alpha release running on prod for last 2 months. Let me know if there is any last minute feedback, if not I will release later tonight ;) Also, sharing thoughts Future 3.0 roadmap.

#107

[a0s]

For now, we are using 1.5.4 with this PR. So it would be great to include this into 2.0 ...

[danmayer]

OK, this is merged into the 2.0 line, on the master branch. I am going to handle some of the other PRs and get a 2.x.x out in a few days, which will include this work. Thanks @a0s

[danmayer]

this is in the 2.0.1 release https://github.com/danmayer/coverband/blob/master/changes.md#201