scrape-ec2 fails in AWS-ISO-E partition

[corey-cole]

(This is probably more of a feature request than a bug report)

While running this in CodeBuild (i.e. directly in AWS), got the following error (removed unhelpful botocore stack trace lines):

  File "/root/.pyenv/versions/3.11.10/lib/python3.11/site-packages/urllib3/connection.py", line 206, in _new_conn
    raise NameResolutionError(self.host, self, e) from e
urllib3.exceptions.NameResolutionError: <botocore.awsrequest.AWSHTTPSConnection object at 0x7f3c14fcb550>: Failed to resolve 'ec2.eu-isoe-west-1.cloud.adc-e.uk' ([Errno -2] Name or service not known)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/codebuild/output/src2979722498/src/ec2instances.info/tasks.py", line 59, in scrape_ec2
    scrape(ec2_file)
  File "/codebuild/output/src2979722498/src/ec2instances.info/scrape.py", line 1234, in scrape
    add_pricing_info(all_instances)
  File "/codebuild/output/src2979722498/src/ec2instances.info/scrape.py", line 245, in add_pricing_info
    ec2.add_pricing(by_type)
  File "/codebuild/output/src2979722498/src/ec2instances.info/ec2.py", line 217, in add_pricing
    add_spot_pricing(imap)
  File "/codebuild/output/src2979722498/src/ec2instances.info/ec2.py", line 278, in add_spot_pricing
    for p in prices_iterator:
...
botocore.exceptions.EndpointConnectionError: Could not connect to the endpoint URL: "https://ec2.eu-isoe-west-1.cloud.adc-e.uk/"

This is an uncommon partition, so it would be helpful if the NameResolutionError was handled the same way as a botocore ClientError (log and pass).

scrape-ec2 worked to that point, and scrape-rds completed successfully within the same CodeBuild execution.