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Reducing Deployment Package Size with the Serverless Framework

2024/06/181 min read

lambdaserverlessServerlessFrameworkSLS

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I had defined several Lambdas with the Serverless Framework and deployed them, and the package size had grown to around 1.3GB, so I’ll reduce it.

Code

package:
   excludeDevDependencies: false
   patterns:
     - "!.git/**"
     - "!node_modules/**"
     - "!aws/**"
     - "!__pycache__/**"
     - "!.venv/**"

Since it was a Python * Lambda setup, __pycache__/ and .venv/ were included. Add entries to patterns to match your environment. A leading ! on a string means “exclude.” With this, 1.3G -> 24mb 🥳