AWS - Lambda
You want to share a custom logging library across multiple Lambda functions in different AWS accounts. What is the best approach using Lambda layers?
You want to share a custom logging library across multiple Lambda functions in different AWS accounts. What is the best approach using Lambda layers?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand cross-account sharing
Lambda layers can be shared publicly or with specific accounts via ARNs.Step 2: Choose best sharing method
Publishing the layer publicly allows all accounts to reference it easily without code duplication.Final Answer:
Publish the layer as a public layer and reference its ARN in each account -> Option AQuick Check:
Cross-account sharing = public layer ARN [OK]
Quick Trick: Publish layers publicly to share across accounts easily [OK]
Common Mistakes:
MISTAKES- Copying code into each function instead of using layers
- Sharing only function code without layers
- Trying to pass code via environment variables
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