AWS - ECS and Fargate
Which ECS service deployment type is best suited for zero downtime when using an ALB?
Which ECS service deployment type is best suited for zero downtime when using an ALB?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify deployment types that support zero downtime
Blue/Green deployment allows traffic to shift between two environments, minimizing downtime.Step 2: Compare with other deployment types
Recreate and manual replacements cause downtime; rolling updates without ALB do not guarantee zero downtime.Final Answer:
Blue/Green deployment -> Option DQuick Check:
Zero downtime deployment = Blue/Green [OK]
Quick Trick: Blue/Green deployment avoids downtime by traffic shifting [OK]
Common Mistakes:
- Choosing recreate deployment which stops old tasks first
- Ignoring ALB's role in rolling updates
- Assuming manual replacement is automated
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