CI: Run publishing steps only on OSS repo for main/version branches (#47315)

* Convert steps to run on OSS repo only

* Exclude versioned branches from publishing artifacts

* Change trigger -> when

* Add trigger to upload_* steps

* Add conditions to remaining steps

* Exclude release steps

* Bring back exclusion for release builds

scripts/drone/steps/lib.star

@@ -8,9 +8,15 @@ alpine_image = 'alpine:3.15'
 curl_image = 'byrnedo/alpine-curl:0.1.8'
 windows_image = 'mcr.microsoft.com/windows:1809'
 wix_image = 'grafana/ci-wix:0.1.1'
-test_release_ver = 'v7.3.0-test'
 
 disable_tests = False
+trigger_oss = {
+    'when': {
+        'repo': [
+            'grafana/grafana',
+        ]
+    }
+}
 
 def slack_step(channel, template, secret):
     return {
@@ -253,7 +259,7 @@ def build_storybook_step(edition, ver_mode):
     }
 
 
-def store_storybook_step(edition, ver_mode):
+def store_storybook_step(edition, ver_mode, trigger=None):
     if edition in ('enterprise', 'enterprise2'):
         return None
 
@@ -272,7 +278,7 @@ def store_storybook_step(edition, ver_mode):
                         for c in channels
                     ])
 
-    return {
+    step = {
         'name': 'store-storybook',
         'image': publish_image,
         'depends_on': ['build-storybook',] + end_to_end_tests_deps(edition),
@@ -282,6 +288,9 @@ def store_storybook_step(edition, ver_mode):
         },
         'commands': commands,
     }
+    if trigger and ver_mode in ("release-branch", "main"):
+        step.update(trigger)
+    return step
 
 def e2e_tests_artifacts(edition):
     return {
@@ -322,7 +331,7 @@ def e2e_tests_artifacts(edition):
     }
 
 
-def upload_cdn_step(edition, ver_mode):
+def upload_cdn_step(edition, ver_mode, trigger=None):
     src_dir = ''
     if ver_mode == "release":
         bucket = "$${PRERELEASE_BUCKET}"
@@ -340,7 +349,7 @@ def upload_cdn_step(edition, ver_mode):
             'grafana-server',
         ])
 
-    return {
+    step = {
         'name': 'upload-cdn-assets' + enterprise2_suffix(edition),
         'image': publish_image,
         'depends_on': deps,
@@ -352,6 +361,9 @@ def upload_cdn_step(edition, ver_mode):
             './bin/grabpl upload-cdn --edition {} --src-bucket "{}"{}'.format(edition, bucket, src_dir),
         ],
     }
+    if trigger and ver_mode in ("release-branch", "main"):
+        step.update(trigger)
+    return step
 
 
 def build_backend_step(edition, ver_mode, variants=None, is_downstream=False):
@@ -581,11 +593,11 @@ def test_a11y_frontend_step(ver_mode, edition, port=3001):
     }
 
 
-def frontend_metrics_step(edition):
+def frontend_metrics_step(edition, trigger=None):
     if edition in ('enterprise', 'enterprise2'):
         return None
 
-    return {
+    step = {
         'name': 'publish-frontend-metrics',
         'image': build_image,
         'depends_on': [
@@ -599,6 +611,9 @@ def frontend_metrics_step(edition):
             './scripts/ci-frontend-metrics.sh | ./bin/grabpl publish-metrics $${GRAFANA_MISC_STATS_API_KEY}',
         ],
     }
+    if trigger:
+        step.update(trigger)
+    return step
 
 
 def codespell_step():
@@ -798,7 +813,7 @@ def build_docker_images_step(edition, ver_mode, archs=None, ubuntu=False, publis
         },
     }
 
-def publish_images_step(edition, ver_mode, mode, docker_repo, ubuntu=False):
+def publish_images_step(edition, ver_mode, mode, docker_repo, trigger=None):
     if mode == 'security':
         mode = '--{} '.format(mode)
     else:
@@ -812,7 +827,7 @@ def publish_images_step(edition, ver_mode, mode, docker_repo, ubuntu=False):
     else:
         deps = ['build-docker-images', 'build-docker-images-ubuntu']
 
-    return {
+    step = {
         'name': 'publish-images-{}'.format(docker_repo),
         'image': 'google/cloud-sdk',
         'environment': {
@@ -827,6 +842,10 @@ def publish_images_step(edition, ver_mode, mode, docker_repo, ubuntu=False):
             'path': '/var/run/docker.sock'
         }],
     }
+    if trigger and ver_mode in ("release-branch", "main"):
+        step.update(trigger)
+
+    return step
 
 
 def postgres_integration_tests_step(edition, ver_mode):
@@ -923,11 +942,11 @@ def memcached_integration_tests_step(edition, ver_mode):
     }
 
 
-def release_canary_npm_packages_step(edition):
+def release_canary_npm_packages_step(edition, trigger=None):
     if edition in ('enterprise', 'enterprise2'):
         return None
 
-    return {
+    step = {
         'name': 'release-canary-npm-packages',
         'image': build_image,
         'depends_on': end_to_end_tests_deps(edition),
@@ -938,6 +957,9 @@ def release_canary_npm_packages_step(edition):
             './scripts/circle-release-canary-packages.sh',
         ],
     }
+    if trigger:
+        step.update(trigger)
+    return step
 
 
 def enterprise2_suffix(edition):
@@ -946,7 +968,7 @@ def enterprise2_suffix(edition):
     return ''
 
 
-def upload_packages_step(edition, ver_mode, is_downstream=False):
+def upload_packages_step(edition, ver_mode, is_downstream=False, trigger=None):
     if ver_mode == 'main' and edition in ('enterprise', 'enterprise2') and not is_downstream:
         return None
 
@@ -966,7 +988,7 @@ def upload_packages_step(edition, ver_mode, is_downstream=False):
     else:
         deps.extend(end_to_end_tests_deps(edition))
 
-    return {
+    step = {
         'name': 'upload-packages' + enterprise2_suffix(edition),
         'image': publish_image,
         'depends_on': deps,
@@ -976,6 +998,9 @@ def upload_packages_step(edition, ver_mode, is_downstream=False):
         },
         'commands': [cmd, ],
     }
+    if trigger and ver_mode in ("release-branch", "main"):
+        step.update(trigger)
+    return step
 
 
 def store_packages_step(edition, ver_mode, is_downstream=False):