AWS Replicator - regex match secretsmanager secrets based on their ARNs

[robertlcx]

Description

Specific proxy configs like:

services:
  secretsmanager:
    resources:
      # list of ARNs of secrets to proxy to real AWS
      - 'arn:aws:secretsmanager:.+:secret:airflow/variables/.*'
    operations:
      # list of operation name regex patterns to include all operations
      - '.*'
    # optionally, specify if only read requests should be allowed; false allows all operations
    # read_only: true

Should be able to cast requests to upstream AWS for ARNs like arn:aws:secretsmanager:.+:secret:airflow/variables/.*, and everything else to LocalStack.

Limitations

Currently, this is only applicable to direct gets on said resources. The merging of the results from LocalStack and upstream AWS still has to be implemented in a subsequent PR.

In addition to that, regex matching the account_id and region_name params won't work because it will not represent the real values coming from upstream AWS. @whummer let me know if I'm missing anything here.

Future selves

Tests ought to be added as well in future PRs.

[whummer]

LGTM! 👍 Can we please bump the version and add a short entry to the change log in the README @robertlcx ? (then we can release a new version right after merging..)

[whummer]

🚀