Read coreApp assets directly from package

packages/core/apps/core-apps-server-internal/BUILD.bazel

@@ -8,13 +8,6 @@ PKG_REQUIRE_NAME = "@kbn/core-apps-server-internal"
 SOURCE_FILES = glob(
   [
     "**/*.ts",
-    "src/**/*.css",
-    "src/**/*.ttf",
-    "src/**/*.woff",
-    "src/**/*.woff2",
-    "src/**/*.ico",
-    "src/**/*.png",
-    "src/**/*.svg",
   ],
   exclude = [
     "**/*.config.js",
@@ -38,8 +31,16 @@ filegroup(
   srcs = SRCS,
 )
 
+ASSETS = glob(["assets/**/*"])
+
+filegroup(
+  name = "assets",
+  srcs = ASSETS,
+)
+
 NPM_MODULE_EXTRA_FILES = [
   "package.json",
+  ":assets"
 ]
 
 RUNTIME_DEPS = [

packages/core/apps/core-apps-server-internal/index.ts

@@ -5,11 +5,17 @@
  * in compliance with, at your election, the Elastic License 2.0 or the Server
  * Side Public License, v 1.
  */
-
+import Path from 'path';
 export { CoreAppsService } from './src';
 export type {
   InternalCoreAppsServiceRequestHandlerContext,
   InternalCoreAppsServiceRouter,
 } from './src';
 // only used by integration tests
 export { FileHashCache, registerRouteForBundle } from './src';
+// After the package is built and bootstrap extracts files to bazel-bin, node modules structure exposes assets outside of the src folder
+// These constants reference locations in the hierarchy after the build is done
+export const ASSETS_DIR = Path.resolve(__dirname, '../assets');
+export const FAVICONS_DIR = `${ASSETS_DIR}/favicons`;
+export const THEMES_DIR = `${ASSETS_DIR}`;
+export const FONTS_DIR = `${ASSETS_DIR}/fonts`;