AWS - CloudFormation
Which AWS CloudFormation feature allows one stack to use a value exported by another stack?
Which AWS CloudFormation feature allows one stack to use a value exported by another stack?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify cross-stack reference method
ImportValue is the intrinsic function designed to import exported values from other stacks.Step 2: Differentiate from other functions
Ref references resources within the same stack; DependsOn controls resource creation order; Condition controls resource creation based on conditions.Final Answer:
ImportValue function -> Option AQuick Check:
Cross-stack import uses ImportValue = C [OK]
Quick Trick: Use ImportValue to get exports from other stacks [OK]
Common Mistakes:
- Using Ref to import cross-stack values
- Confusing DependsOn with value import
- Using Condition for cross-stack references
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