Dagster Cloud: 5X Faster Deployments
This title could be clearer and more informative.Try out Clickbait Shieldfor free (5 uses left this month).
Dagster Cloud's Serverless offering reduced deployment times from 3+ minutes to ~40 seconds (4-5x faster) by replacing Docker image builds with PEX-based builds. The approach splits code into a deps.pex (dependencies) and source.pex (user code), storing them in S3. On code changes without dependency updates, only the source.pex is rebuilt and uploaded, and existing warm containers are reused — skipping the costly Docker build and AWS Fargate cold-start steps. PEX provides isolation, determinism, and composability. Trade-offs include shared RAM/CPU across environments on the same container and limited support for packages without Linux wheels.
