[FEATURE]Add `iplocation` function to PPL for IP address geolocation

[YANG-DB]

Description:
We propose adding an geoip function to OpenSearch's Piped Processing Language (PPL) and SQL to provide built-in IP address geolocation capabilities.
This feature would be similar to functionality used in OpenSearch's geospatial feature, enhancing PPL's ability to enrich log data with geographical information based on IP addresses.

Proposed Functionality:

1. The 'geoip' function should take an IP address as input and return geographical information.
2. It should support both IPv4 and IPv6 addresses.
3. The function should return multiple fields including country, region, city, latitude, longitude, and others as available.
4. It should allow users to specify which geolocation fields to include in the output.
5. The function should use a regularly updated IP geolocation database for accuracy.

Example Usage:

... | eval geolocation = geoip(ip_field)

This would add a new field 'geolocation' with all available location information for the IP address in 'ip_field'.

... | eval country = geoip(ip_field, "country")
... | eval lat = geoip(ip_field, "lat"), lon = iplocation(ip_field, "lon")

This would add new fields with specific geolocation information.

... | eval location_info = geoip(ip_field, "country,region,city,lat,lon")

This would add a new field 'location_info' with multiple pieces of geolocation data.

Additional considerations

• Allow for registering a DB table that allows resolving the IP to Geo
• Adding a generic way to register the IP to Geo location resolving mechanism / service
  • Adding auth tokens for calling such service

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Support for PPL iplocation function is required for both:

OpenSearch based PPL engine

• [FEATURE]Add geoip function to PPL for IP address geolocation #3038

Spark based PPL engine

• [FEATURE]Add iplocation function to PPL for IP address geolocation opensearch-spark#672

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Related resources

• https://github.com/opensearch-project/geospatial?tab=readme-ov-file

[dblock]

[Catch All Triage - 1, 2, 3, 4]

[andy-k-improving]

For the community awareness, I'm working on this.

[andy-k-improving]

To provide some status update here, following are the planned items, in order to achieve this IPEnrichment funcationality via. Geo-Staptial plugin:

• 1. Create a client module on GeoSpatial side: [Feature] New module geospatial-client for cross-plugin IP enrichment  geospatial#700
• 2. Configure CI to publish the module: CI pipeline update to publish geospatial-client jar geospatial#706
• 3. Create the geoip command on this project: PPL command expression implementation for geoip #3228

Which the first two items are completed and I'm working on the actual geoip on SQL repo.

[andy-k-improving]

@YANG-DB The actual implementation is yet to be merged, we will need to re-open this.
#3228