You are developing a Snowflake Native Application that utilizes Snowpark Container Services to perform complex image processing. The application needs to securely access data stored in the consumer's Snowflake account, specifically a table named 'USER IMAGES' in the schema 'RAW DATA'. The container image is built and pushed to Snowflake's internal registry. Which of the following steps are necessary to ensure the container service can access this data securely and efficiently within the consumer's account without exposing credentials directly in the container environment?
Correct Answer: D
The most secure and efficient way to grant access is to use database roles and entitlements. Creating a database role with the required privileges, assigning it to the service account of the container service through an entitlement provided to consumer is the recommended approach. This avoids storing credentials directly and provides fine-grained access control. Using SNOWFLAKE_CONTAINER_SERVICE role is too broad and admin credentials should never be used directly in the code. Storing service account credentials in environment variables is insecure. OAuth is not directly used for container services accessing data within the consumer's account in this manner; entitlements offer a more streamlined and secure approach. Network Rules control egress traffic, not access to Snowflake data within the account.