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Spaces NP Migration - Moving server to the LegacyAPI model #45382

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merged 22 commits into from
Sep 18, 2019

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@legrego legrego commented Sep 11, 2019

Summary

Inspired by @azasypkin's work on the security plugin migration, this updates the spaces server code to use the LegacyAPI approach to better delineate what we have left to migrate. It also allowed for additional cleanup so that I can move the server code to a real NP plugin in a followup PR.

Notable changes:

The space selector screen is no longer rendered at the Kibana root, but rather at /spaces/space_selector. Having a dedicated route for this allowed the onPostAuth request interceptor to move to the NP, as it was previously rendering a hidden app inside of the interceptor. Now, the interceptor redirects to a legacy route (/spaces/space_selector) which is responsible for rendering the view.

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@@ -122,8 +118,7 @@ export const spaces = (kibana: Record<string, any>) =>

async init(server: Server) {
const kbnServer = (server as unknown) as KbnServer;
const initializerContext = ({
legacyConfig: server.config(),
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legacyConfig moves to LegacyAPI.legacyConfig

usage: server.usage,
tutorial: {
addScopedTutorialContextFactory: server.addScopedTutorialContextFactory,
const core: CoreSetup = ({
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Now that all legacy requirements have moved to LegacyAPI, we can remove SpacesCoreSetup in favor of the real CoreSetup provided by NP

@@ -177,20 +158,31 @@ export const spaces = (kibana: Record<string, any>) =>
spaces: this,
};

const { spacesService, log } = await plugin(initializerContext).setup(core, plugins);
const legacyRouter = server.route.bind(server);
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The only component that couldn't move into LegacyAPI is the legacy router, because the route definitions are created before the legacy API is initialized. This is very short lived though, as my next PR will move the server code to a real NP plugin, which will use the NP router.

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Btw, aren't you registering routes in setupLegacyComponents that is called from registerLegacyAPI?

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💚 Build Succeeded

@legrego legrego added release_note:skip Skip the PR/issue when compiling release notes Team:Security Team focused on: Auth, Users, Roles, Spaces, Audit Logging, and more! v7.5.0 v8.0.0 labels Sep 11, 2019
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Pinging @elastic/kibana-security

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ACK: will review today

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Looks great! Just few minor nits/questions. Briefly tested locally and everything worked as expected, will test more thoroughly when draft turns into ready-to-review PR.

x-pack/legacy/plugins/spaces/index.ts Outdated Show resolved Hide resolved
http.registerOnPreAuth(async function spacesOnPreAuthHandler(
request: KibanaRequest,
response: LifecycleResponseFactory,
toolkit: OnPreAuthToolkit
) {
const serverBasePath: string = getLegacyAPI().legacyConfig.get('server.basePath');
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note: do we not use http.basePath.get here intentionally (it seems it can work here as expected)? And if so, what is our plan/replacement in NP?

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I think it would technically work, as this interceptor hasn't rewritten the base path yet. It felt clearer to me that we were looking for the server's base path by reading this config directly, as opposed to relying on the implicit behavior of the execution order here.

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as opposed to relying on the implicit behavior of the execution order here.

Agree and it works for me, I'm just curious what we'll do in NP since we don't have anything except for basePath service there afaik.

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Yeah, good question.

@restrry what do you think? I know we have plans for exposing these values to the client, but do you know how we can get access to things like server.basePath from within server-side plugins?

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For this specific property, we could make http.basePath.get take an optional request object, instead of a required one, but that won't solve the general problem.

The spaces plugin also needs access to the kibana.index property too, in order to collect its telemetry metrics. Is this property exposed via a core service somewhere?

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Can't we just make serverBasePath property of BasePath service as public readonly to not confuse it with "request" base path, but at the same time still keep them together?

Having access to kibana.index is listed as a dependency for the Security plugin as well. If it stays in Kibana plugin, then we need just Kibana NP plugin that would expose that for the time being (like we did with Timelion NP plugin and timelion.ui.enabled config key).

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Can't we just make serverBasePath property of BasePath service as public readonly to not confuse it with "request" base path, but at the same time still keep them together?

Yep, that's a good idea!

Having access to kibana.index is listed as a dependency for the Security plugin as well. If it stays in Kibana plugin, then we need just Kibana NP plugin that would expose that for the time being (like we did with Timelion NP plugin and timelion.ui.enabled config key).

Yeah that'd work too. So maybe the answer here is that plugins and services will just expose the properties as needed, rather than introducing a whitelisting system for the yml entries in general.

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I've created #45991

@@ -11,10 +11,12 @@ import {
HttpServiceSetup,
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note: not related to this PR, but it seems these tests should be within a integration_tests folder (these are run with jest_integration.js and have a larger default timeout so that you don't need to increase it explicitly).

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Ah I didn't know this -- thanks!

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Build failed due to timeout when I did this and removed the explicit timeout increases :(
https://kibana-ci.elastic.co/job/elastic+kibana+pull-request/2706/

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Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.

Hmm, maybe they weren't picked up by jest_integration for some reason? Are they run when you use node scripts/jest_integration.js locally?

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hmm, apparently not:

elastic-mbp:x-pack larry$ node scripts/jest_integration.js ./legacy/plugins/spaces/server/lib/request_interceptors/
/Users/larry/repos/kibana/x-pack/scripts/jest_integration.js:19
throw new Error(`
^

Error: 
  jest_integration tests have been disabled because of a flaky failure in the
  example integration test: https://github.com/elastic/kibana/issues/32795#issuecomment-471585274

  when un-skipping these tests make sure to uncomment test/scripts/jenkins_xpack.sh lines 33-37

    at Object.<anonymous> (/Users/larry/repos/kibana/x-pack/scripts/jest_integration.js:19:7)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3)

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Ugh, didn't know that 😭 Sorry for wasting your time on that

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No worries! I'll just revert it

x-pack/legacy/plugins/spaces/server/new_platform/plugin.ts Outdated Show resolved Hide resolved
x-pack/legacy/plugins/spaces/server/new_platform/plugin.ts Outdated Show resolved Hide resolved
x-pack/legacy/plugins/spaces/server/new_platform/plugin.ts Outdated Show resolved Hide resolved
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💔 Build Failed

@legrego legrego marked this pull request as ready for review September 13, 2019 13:14
@legrego legrego requested review from a team as code owners September 13, 2019 13:14
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👍 For platform changes

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legrego commented Sep 13, 2019

@azasypkin ready for another review whenever you get a chance

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ACK: will review today

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legrego commented Sep 16, 2019

@azasypkin you can wait on the review -- I thought through a couple of different scenarios that I want to verify before you spend more time on this.

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@azasypkin you can wait on the review -- I thought through a couple of different scenarios that I want to verify before you spend more time on this.

Ha, actually code LGTM, just few nits. Let me know when I can start testing it locally then.

x-pack/legacy/plugins/spaces/index.ts Outdated Show resolved Hide resolved
@@ -177,20 +158,31 @@ export const spaces = (kibana: Record<string, any>) =>
spaces: this,
};

const { spacesService, log } = await plugin(initializerContext).setup(core, plugins);
const legacyRouter = server.route.bind(server);
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Btw, aren't you registering routes in setupLegacyComponents that is called from registerLegacyAPI?

x-pack/legacy/plugins/spaces/index.ts Outdated Show resolved Hide resolved
);

return {
available,
enabled: spacesAvailableAndEnabled, // similar behavior as _xpack API in ES
enabled: available,
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It's not technically necessary to have both available and enabled here, but I chose to keep it in so that telemetry consumers can have a consistent schema when searching for spaces-related statistics.

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legrego commented Sep 16, 2019

The changes in 48b0091 weren't strictly required as part of this PR, as this behavior has likely existed since the initial spaces NP shim, but this gives us the original implementation that we intended, and it'll help out when we go to implement #44678

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legrego commented Sep 17, 2019

@azasypkin now this is ready for you :)

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LGTM! Tested locally and haven't noticed anything suspicious. Just two notes:

  • We return 404 when default is used as a space ID in URL, but redirect to space selector when space isn't known. It probably works as intended since we do this in master, just got curious
  • When users delete the last non-default space we redirect them to space selector in this PR (with only Default space to choose from), but to the root (without space selector) in master. It's super edge case and doesn't feel like a big deal though.

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legrego commented Sep 18, 2019

We return 404 when default is used as a space ID in URL, but redirect to space selector when space isn't known. It probably works as intended since we do this in master, just got curious

That is curious! I'm glad I didn't make it any worse, but I'll see if I can track that down.

When users delete the last non-default space we redirect them to space selector in this PR (with only Default space to choose from), but to the root (without space selector) in master. It's super edge case and doesn't feel like a big deal though.

Good catch! I agree it's an edge case, but I'd still like to solve this. I think it'll be best to tackle this once #45991 merges, since at that point I'll be able to send users back to the root path again without introducing another legacy shim.

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legrego commented Sep 18, 2019

@elasticmachine update branch

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