[IMPALA-10857] Add libcurl library to Impala native-toolchain

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.1.0
• Epic Link: Impala JWT Support
• Epic Color: ghx-label-6
• Assignee: Wenzhe Zhou
• Reporter: Wenzhe Zhou
• Created: 11/Aug/21 23:35
• Updated: 11/Oct/22 18:49
• Resolved: 20/Aug/21 18:57

Description

In IMPALA-10489, we added JWT support for Impala. The implementation assume the public keys for JWT verification are provided as a local json file, which is specified with starting flag. In some deployment scenarios, public keys for JWT verification are provided as URL, for example, URL for a Knox endpoint. In these cases, Impala should be able to download the keys from the given URL. 

libcurl library needs to be added to Impala native toolchain so that we could call its API to download keys.