CI: Introduce build-frontend-packages step (#45824)

* Split frontend build

* Fix command name

* Update grabpl

scripts/drone/pipelines/docs.star

@@ -5,7 +5,6 @@ load(
     'lint_frontend_step',
     'codespell_step',
     'shellcheck_step',
-    'build_frontend_step',
     'test_frontend_step',
     'build_storybook_step',
     'build_frontend_docs_step',

scripts/drone/pipelines/main.star

@@ -12,6 +12,7 @@ load(
     'test_frontend_step',
     'build_backend_step',
     'build_frontend_step',
+    'build_frontend_package_step',
     'build_plugins_step',
     'package_step',
     'grafana_server_step',
@@ -79,6 +80,7 @@ def get_steps(edition, is_downstream=False):
         enterprise_downstream_step(edition=edition),
         build_backend_step(edition=edition, ver_mode=ver_mode, is_downstream=is_downstream),
         build_frontend_step(edition=edition, ver_mode=ver_mode, is_downstream=is_downstream),
+        build_frontend_package_step(edition=edition, ver_mode=ver_mode, is_downstream=is_downstream),
         build_plugins_step(edition=edition, sign=True),
         validate_scuemata_step(),
         ensure_cuetsified_step(),

scripts/drone/pipelines/pr.star

@@ -9,6 +9,7 @@ load(
     'shellcheck_step',
     'build_backend_step',
     'build_frontend_step',
+    'build_frontend_package_step',
     'build_plugins_step',
     'test_backend_step',
     'test_backend_integration_step',
@@ -71,6 +72,7 @@ def pr_pipelines(edition):
     build_steps = [
         build_backend_step(edition=edition, ver_mode=ver_mode, variants=variants),
         build_frontend_step(edition=edition, ver_mode=ver_mode),
+        build_frontend_package_step(edition=edition, ver_mode=ver_mode),
         build_plugins_step(edition=edition),
         validate_scuemata_step(),
         ensure_cuetsified_step(),

scripts/drone/pipelines/release.star

@@ -16,6 +16,7 @@ load(
     'test_frontend_step',
     'build_backend_step',
     'build_frontend_step',
+    'build_frontend_package_step',
     'build_plugins_step',
     'package_step',
     'grafana_server_step',
@@ -179,6 +180,7 @@ def get_steps(edition, ver_mode):
     build_steps = [
         build_backend_step(edition=edition, ver_mode=ver_mode),
         build_frontend_step(edition=edition, ver_mode=ver_mode),
+        build_frontend_package_step(edition=edition, ver_mode=ver_mode),
         build_plugins_step(edition=edition, sign=True),
         validate_scuemata_step(),
         ensure_cuetsified_step(),

scripts/drone/steps/lib.star

@@ -1,6 +1,6 @@
 load('scripts/drone/vault.star', 'from_secret', 'github_token', 'pull_secret', 'drone_token', 'prerelease_bucket')
 
-grabpl_version = 'v2.9.5'
+grabpl_version = 'v2.9.7'
 build_image = 'grafana/build-container:1.5.1'
 publish_image = 'grafana/grafana-ci-deploy:1.3.1'
 deploy_docker_image = 'us.gcr.io/kubernetes-dev/drone/plugins/deploy-image'
@@ -241,6 +241,7 @@ def build_storybook_step(edition, ver_mode):
         'depends_on': [
             # Best to ensure that this step doesn't mess with what's getting built and packaged
             'build-frontend',
+            'build-frontend-packages',
         ],
         'environment': {
             'NODE_OPTIONS': '--max_old_space_size=4096',
@@ -421,6 +422,36 @@ def build_frontend_step(edition, ver_mode, is_downstream=False):
         'commands': cmds,
     }
 
+def build_frontend_package_step(edition, ver_mode, is_downstream=False):
+    if not is_downstream:
+        build_no = '${DRONE_BUILD_NUMBER}'
+    else:
+        build_no = '$${SOURCE_BUILD_NUMBER}'
+
+    # TODO: Use percentage for num jobs
+    if ver_mode == 'release':
+        cmds = [
+            './bin/grabpl build-frontend-packages --jobs 8 --github-token $${GITHUB_TOKEN} ' + \
+            '--edition {} --no-pull-enterprise ${{DRONE_TAG}}'.format(edition),
+            ]
+    else:
+        cmds = [
+            './bin/grabpl build-frontend-packages --jobs 8 --edition {} '.format(edition) + \
+            '--build-id {} --no-pull-enterprise'.format(build_no),
+            ]
+
+    return {
+        'name': 'build-frontend-packages',
+        'image': build_image,
+        'depends_on': [
+            'initialize',
+        ],
+        'environment': {
+            'NODE_OPTIONS': '--max_old_space_size=8192',
+        },
+        'commands': cmds,
+    }
+
 
 def build_frontend_docs_step(edition):
     return {
@@ -607,6 +638,7 @@ def package_step(edition, ver_mode, include_enterprise2=False, variants=None, is
         'build-plugins',
         'build-backend',
         'build-frontend',
+        'build-frontend-packages',
     ]
     if include_enterprise2:
         sfx = '-enterprise2'
@@ -682,6 +714,7 @@ def grafana_server_step(edition, port=3001):
             'build-plugins',
             'build-backend',
             'build-frontend',
+            'build-frontend-packages',
         ],
         'environment': environment,
         'commands': [