[x] bug report
[ ] feature request

# Detailed description
cloudwatch logging doesn't work if USE_SSL is enabled. The problem seems to be in 
https://github.com/localstack/localstack/blob/f9d5c1a77088bf65e10d05a298ef7ab61fc64314/localstack/utils/cloudwatch/cloudwatch_util.py#L57
If protocol is https ,the service is enabled resolver returns False. Logging works normally when USE_SSL=0
Happens at least with 0.11.1, but seems to be the same problem with older versions also.

## Expected behavior
Cloudwatch logging works
...

## Actual behavior
Nothing is logged to cloudwatch logs

# Steps to reproduce
set USE_SSL=1

## Command used to start LocalStack
docker-compose up

try:
        float(s)  
        return True
    except (TypeError, ValueError):
        return False
def is_mac_os():
    return bootstrap.is_mac_os()
def is_linux():
    return bootstrap.is_linux()
def is_alpine():
    try:
        if '_is_alpine_' not in CACHE:
            CACHE['_is_alpine_'] = False
            if not os.path.exists('/etc/issue'):
                return False
            out = to_str(subprocess.check_output('cat /etc/issue', shell=True))
            CACHE['_is_alpine_'] = 'Alpine' in out
    except subprocess.CalledProcessError:
        return False
    return CACHE['_is_alpine_']
def get_arch():
    if is_mac_os():
        return 'osx'
    if is_alpine():
        return 'alpine'
    if is_linux():
        return 'linux'
    raise Exception('Unable to determine system architecture')
def short_uid():