Update Snowflake hostname configuration docs#686
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hovaesco
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Jun 2, 2026
| | `SF_AWS_ENDPOINT_URL` | `localhost:4566` (default) | AWS services endpoint for connecting to other AWS services (SQS, SNS, etc.) from the Snowflake emulator. | | ||
| | `DNS_NAME_PATTERNS_TO_RESOLVE_UPSTREAM` | `*.s3.amazonaws.com` (example) | List of domain names that should NOT be resolved to the LocalStack container, but instead always forwarded to the upstream resolver (S3 for example). this would be required when importing data into a stage from an external S3 bucket on the real AWS cloud. Comma-separated list of Python-flavored regex patterns. | | ||
| | `SF_HOSTNAME_REGEX` | `snowflake\..+` (default) | Allows you to customize the hostname used for matching the Snowflake API routes in the HTTP router. If not set, then it matches on any hostnames that contain a `snowflake.*` subdomain (e.g., `snowflake.localhost.localstack.cloud`). | | ||
| | `SF_HOSTNAMES` | `snowflake.localhost.localstack.cloud,snowflake.internal` | Comma-separated list of hostnames that should route to the Snowflake emulator. If set, only these hostnames are matched. If unset, LocalStack keeps matching the default `*.snowflake.*` hostnames for backward compatibility. | |
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the code default is only snowflake.localhost.localstack.cloud
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please amend the last sentence slightly to something like:
If unset, LocalStack also matches any hostname with a snowflake. subdomain i.e. snowflake.* or *.snowflake.* for backward compatibility.
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Fixes DOC-264