What it is: A managed deployment service that automates app deployments to EC2, on-prem servers, or Lambda.

What it’s for:

• Deploy new versions safely and consistently.
• Support deployment strategies to reduce downtime.

Key ideas:

• Can do rolling deployments and other strategies.
• Uses deployment groups and hooks for lifecycle events.

Exam cues:

• “automate deployment to EC2 fleet” → CodeDeploy.
• “reduce downtime during deployments” → deployment strategies.

Hard words:

• *deployment* /dɪˈplɔɪmənt/: triển khai
• *strategy* /ˈstrætədʒi/: chiến lược
• *downtime* /ˈdaʊntaɪm/: thời gian gián đoạn
• *lifecycle* /ˈlaɪfsaɪkl/: vòng đời