[Reporting] fix unsupported platform crash

[tsullivan]

Summary

Caused by: #120110

This PR fixes a server crash that occurs when the platform doesn't have a supported Chromium binary available for Reporting.

Today, a user on the Darwin arm64 platform will get a crash when they try to start Kibana:

[2021-12-07T10:43:28.569-06:00][ERROR][plugins.screenshotting] Error in screenshotting setup, it may not function properly.
Unhandled Promise rejection detected:

Error: Unsupported platform: darwin-arm64
    at install (/Users/smith/Code/kibana/x-pack/plugins/screenshotting/server/browsers/install.ts:32:11)

Now, they will still see the error logged but the server will not crash. This change also has a proper stack trace logged:

[2021-12-07T10:27:21.833-07:00][ERROR][plugins.screenshotting] Error in screenshotting setup, it may not function properly.
[2021-12-07T10:27:21.834-07:00][ERROR][plugins.screenshotting] Error: Unsupported platform: darwin-arm64
    at install (/home/tsullivan/elastic/kibana/x-pack/plugins/screenshotting/server/browsers/install.ts:31:11)
    at /home/tsullivan/elastic/kibana/x-pack/plugins/screenshotting/server/plugin.ts:63:11
    at ScreenshottingPlugin.setup (/home/tsullivan/elastic/kibana/x-pack/plugins/screenshotting/server/plugin.ts:57:33)
    at PluginWrapper.setup (/home/tsullivan/elastic/kibana/src/core/server/plugins/plugin.ts:108:26)
    at PluginsSystem.setupPlugins (/home/tsullivan/elastic/kibana/src/core/server/plugins/plugins_system.ts:129:40)
    at PluginsService.setup (/home/tsullivan/elastic/kibana/src/core/server/plugins/plugins_service.ts:171:52)
    at Server.setup (/home/tsullivan/elastic/kibana/src/core/server/server.ts:282:26)
    at Root.setup (/home/tsullivan/elastic/kibana/src/core/server/root/index.ts:52:14)
    at bootstrap (/home/tsullivan/elastic/kibana/src/core/server/bootstrap.ts:101:5)
    at Command.<anonymous> (/home/tsullivan/elastic/kibana/src/cli/serve/serve.js:244:5)

When this error is logged, if the user tries to generate a PNG or PDF report in the Kibana instance, they will see a failed report with an appropriate error:

Checklist

Delete any items that are not applicable to this PR.

• Unit or functional tests were updated or added to match the most common scenarios

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServicesUx)

[elasticmachine]

Pinging @elastic/kibana-reporting-services (Team:Reporting Services)

[smith]

Works as expected for me. Thank you!

[kibana-ci]

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Metrics [docs]

✅ unchanged

History

• 💔 Build #11941 failed 1ff7d68
• 💚 Build #11894 succeeded 8312b75

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