Add nightly cronjob (#55675)

.drone.yml

@@ -5284,6 +5284,36 @@ trigger:
   event: cron
 type: docker
 ---
+clone:
+  retries: 3
+kind: pipeline
+name: grafana-com-nightly
+platform:
+  arch: amd64
+  os: linux
+steps:
+- commands:
+  - mkdir -p bin
+  - curl -fL -o bin/grabpl https://grafana-downloads.storage.googleapis.com/grafana-build-pipeline/v3.0.10/grabpl
+  - chmod +x bin/grabpl
+  image: byrnedo/alpine-curl:0.1.8
+  name: grabpl
+- commands:
+  - ./bin/grabpl publish grafana-com --edition oss
+  depends_on:
+  - grabpl
+  environment:
+    GCP_KEY:
+      from_secret: gcp_key
+    GRAFANA_COM_API_KEY:
+      from_secret: grafana_api_key
+  image: grafana/grafana-ci-deploy:1.3.3
+  name: post-to-grafana-com
+trigger:
+  cron: grafana-com-nightly
+  event: cron
+type: docker
+---
 get:
   name: .dockerconfigjson
   path: secret/data/common/gcr
@@ -5351,6 +5381,6 @@ kind: secret
 name: packages_secret_access_key
 ---
 kind: signature
-hmac: d30e53c2f89e9e08cb75b2f003c11aeb0f8391e6bf3ea2be65cdeb5a33ab4d43
+hmac: 774fd382b75b0860cc64326952818257df858a0f59144ad9ed978c984b94fd0e
 
 ...

scripts/drone/events/cron.star

@@ -1,13 +1,20 @@
-load('scripts/drone/vault.star', 'from_secret')
+load('scripts/drone/vault.star', 'from_secret', 'pull_secret')
+load('scripts/drone/steps/lib.star', 'publish_image', 'download_grabpl_step')
 
 aquasec_trivy_image = 'aquasec/trivy:0.21.0'
 
 def cronjobs(edition):
+    grafana_com_nightly_pipeline = cron_job_pipeline(
+        cronName='grafana-com-nightly',
+        name='grafana-com-nightly',
+        steps=[download_grabpl_step(),post_to_grafana_com_step()]
+    )
     return [
         scan_docker_image_pipeline(edition, 'latest'),
         scan_docker_image_pipeline(edition, 'main'),
         scan_docker_image_pipeline(edition, 'latest-ubuntu'),
         scan_docker_image_pipeline(edition, 'main-ubuntu'),
+        grafana_com_nightly_pipeline,
     ]
 
 def cron_job_pipeline(cronName, name, steps):
@@ -77,3 +84,16 @@ def slack_job_failed_step(channel, image):
             'status': 'failure'
         }
     }
+
+def post_to_grafana_com_step():
+    return {
+            'name': 'post-to-grafana-com',
+            'image': publish_image,
+            'environment': {
+                'GRAFANA_COM_API_KEY': from_secret('grafana_api_key'),
+                'GCP_KEY': from_secret('gcp_key'),
+            },
+            'depends_on': ['grabpl'],
+            'commands': ['./bin/grabpl publish grafana-com --edition oss'],
+        }
+