From 736c0d6adefc6d28e84c50dceb8b179a9c19dec3 Mon Sep 17 00:00:00 2001
From: Liren Tu <tuliren.git@outlook.com>
Date: Thu, 4 Nov 2021 01:31:56 -0700
Subject: [PATCH] Add comments

---
 .github/workflows/test-command.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/test-command.yml b/.github/workflows/test-command.yml
index b7da2a9a77c3..355f3ab32c5b 100644
--- a/.github/workflows/test-command.yml
+++ b/.github/workflows/test-command.yml
@@ -40,6 +40,9 @@ jobs:
     runs-on: ${{ needs.start-test-runner.outputs.label }}
     environment: more-secrets
     steps:
+      # GCloud SDK is needed for downloading build dependencies (e.g. Databricks JDBC driver)
+      # from gs://io-airbyte-build-dependencies. The SPEC_CACHE_SERVICE_ACCOUNT_KEY is reused
+      # for this bucket.
       - name: Set up Cloud SDK
         uses: google-github-actions/setup-gcloud@master
         with: