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[Maps] add ability to load EMS resources with CORS #34503

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merged 28 commits into from
May 21, 2019

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thomasneirynck
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@thomasneirynck thomasneirynck commented Apr 3, 2019

Closes #34017

  • allow maps app to request content from EMS either through CORS or proxied through Kibana. This is configured in the kibana.yml.
  • the new default is to use CORS, similar to the region-maps. This is a change in the default behavior of the maps app.
  • the actual tile-requests are proxied as well. Before, only requests for vector-files were proxied.

Closes #36524

  • align the behavior of the region-maps with the maps app and do a simple CORS-call, without injecting the additional kbn-version header.

This also introduces an internal refactor.

  • layers and tms-services configured in the kibana.yml are no longer proxied through the meta-call.

This also fixes the bug that the initial-layer selection now correctly uses the tilemap.* config from kibana.yml when it is present


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This changes the default to use CORS (so the flag-config does not conflict with the default (and only behavior) in the region and coordinate map visualizations.

We might want to backport this all the way to 6.7/7.0. For the backports, we would actually want to preserve the default of proxying EMS.

It'd be something like:
- 6.7.x: proxy EMS (as it is now)
- 7.0.x: proxy EMS (as it is now)
- 7.x: use CORS (breaking)
- 8.0: use CORS (breaking)

cc @alexfrancoeur

@thomasneirynck thomasneirynck changed the title [Maps] add optional CORS [Maps] add ability to load EMS resources with CORS Apr 3, 2019
@thomasneirynck thomasneirynck added [Deprecated-Use Team:Presentation]Team:Geo Former Team Label for Geo Team. Now use Team:Presentation v8.0.0 labels Apr 3, 2019
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Pinging @elastic/kibana-gis

@thomasneirynck thomasneirynck added discuss WIP Work in progress labels Apr 3, 2019
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@thomasneirynck thomasneirynck requested review from nreese, kindsun and alexfrancoeur and removed request for nreese April 5, 2019 22:06
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nreese commented May 21, 2019

Looks like relative URL are no longer supported. I am getting the following errors. This occurs when map.proxyElasticMapsServiceInMaps: true

Screen Shot 2019-05-21 at 6 44 04 AM

Screen Shot 2019-05-21 at 6 44 35 AM

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lgtm
code review, tested in chrome

@nickpeihl
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lgtm! Tested locally with custom tile and region map services. My custom maps loaded directly with CORS while EMS services loaded via proxy when map.proxyElasticMapsServiceInMaps: true.

When map.proxyElasticMapsServiceInMaps: false all resources load directly with CORS.

Requests for custom region maps no longer include the kbn-version header which is great!

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@thomasneirynck thomasneirynck merged commit e2e5fed into elastic:master May 21, 2019
thomasneirynck added a commit to thomasneirynck/kibana that referenced this pull request May 21, 2019
- breaking change: by default, the Maps app now connects with CORS to EMS. This is optional
- no longer include the kbn-version header when requesting files over CORS in region maps
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Great feature!

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