guitcastro opened a new issue, #1028:
URL: https://github.com/apache/iceberg-python/issues/1028
### Apache Iceberg version
main (development)
### Please describe the bug 🐞
Nessie s3 signer use a different endpoint than `/aws/s3/sign` and also
includes query parameters in the URI. Therefore, we need to honor their
`s3.signer.endpoint` which is currently static in code.
Additionally, we need to parameterize the X-Iceberg-Access-Delegation, which
currently has the value vended-credentials hardcoded. This is necessary because
Nessie does not return the `s3.signer.endpoint` when the value is set to
`vended-credentials`.
An example of Nessie config from get table endpoint:
```
"config": {
"s3.path-style-access": "true",
"s3.signer.uri": "http://127.0.0.1:19120/iceberg/";,
"s3.endpoint": "http://minio:9000/";,
"io-impl": "org.apache.iceberg.aws.s3.S3FileIO",
"s3.signer.endpoint":
"v1/main/s3-sign/default.datasets?e=1723099768&b=s3%3A%2F%2Fwarehouse&k=f1379b71-f73a-4fcd-8765-4a1aba6a3585&s=22f3f6b52d586c3b9b310eb2df0e2e51d0c8d0b03030f5bb25f8b2548ef406da&w=s3%3A%2F%2Fwarehouse%2Fdefault%2Fdatasets_f244e57f-143a-4e19-b1c6-591cafbe96fe",
"s3.remote-signing-enabled": "true",
"client.region": "us-east-1"
}
```
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