Fault-isolated, zonal deployments with AWS CodeDeploy
DevOps & Developer Productivity Blog
This article explains how to use AWS CodeDeploy's new zonal deployment feature to improve the operational resilience of your services by leveraging fault isolation and Availability Zone (AZ) independence.
Specifically, the article covers:
- Availability Zone independence and how it limits the scope of failures by isolating resources within each AZ
- Challenges with traditional deployment strategies, including rollbacks taking time and potential for impacting multiple AZs
- How CodeDeploy's zonal deployments allow deploying to one AZ at a time, with configurable batches and bake times
- Recovering from failed zonal deployments by using zonal shift to quickly move traffic away from the impacted AZ
- Conclusion highlighting the benefits of zonal deployments for improving resilience and reducing recovery time
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