Added support for awslogs

[acurus-puppetmaster]

AWSlogs which is AWS Cloudwatch logging support was not included, this is a standard log driver shipped with docker and as such should be supported.

Minimal changes have been made to the code to enable this support, essentially allowing awslogs for log_driver in init.pp.

The docker_spec.rb and docker_windows_spec.rb have also been updated, but no specific log_opts checks have been put in place for awslogs.

Sample usage is

docker::log_level: info
docker::log_driver: awslogs
docker::log_opt:
  - awslogs-region=ap-southeast-2
  - awslogs-group=%{facts.puppet_project}-%{facts.puppet_env}
  - awslogs-create-group=true
  - tag='%{facts.hostname}-{{.Name}}-{{.ID}}'

[acurus-puppetmaster]

Any chance this can be merged?

[davejrt]

LGTM