I create a lambda layer for AWS lambda service in python3.9 version with Cloud9

createLambda.md

Install/Build Python3.11 in the Cloud9 Linux Session

PHASE 1:

sudo dnf update -y
sudo dnf search python3
sudo dnf install python3.11 -y
python3.11 --version
sudo dnf install python3.11-pip -y

Install Virtualenv

python3.11 -m pip install --user virtualenv

PHASE 2: Create a Virtual Environment in Python 3.11 and Add Needed Libraries/Packages

1. Create a directory and navigate to it:

mkdir folder
cd folder

2. Create a virtual environment:

virtualenv v-env --python=python3.11
source ./v-env/bin/activate

Packages Installation

Install packages into the environment:

pip install --target=/path/to/environment/folder/pandas_env/lib/python3.11/site-packages <package_name>

Examples:

pip install pandas
pip install numpy
pip install requests
pip install --target=/home/ec2-user/environment/folder/pandas_env/lib/python3.11/site-packages psycopg2-binary

Deactivate Environment

deactivate

PHASE 3: Ship All Libraries/Packages to AWS Lambda

1. Create the required directories:

mkdir python
cd python

2. Copy packages from the virtual environment:

cp -r ../v-env/lib/python3.11/site-packages/* .
cd ..

3. Zip the files and upload to AWS Lambda:

zip -r my_custom_layer.zip python
aws lambda publish-layer-version --layer-name my_custom_lambda_layer --zip-file fileb://my_custom_layer.zip --compatible-runtimes python3.11

PHASE 4: Verify the Response

Example response:

{
    "LayerVersionArn": "arn:aws:lambda:us-east-1:476102943659:layer:pandas:1",
    "Description": "",
    "CreatedDate": "2021-11-24T23:29:32.962+0000",
    "LayerArn": "arn:aws:lambda:us-east-1:476102943659:layer:pandas",
    "Content": {
        "CodeSize": 46365870,
        "CodeSha256": "2WIBKi0fRqPx8ZRXGKrdO3dBYnehUcJLuusml86Yvz0=",
        "Location": "https://prod-04-2014-layers.s3.us-east-1.amazonaws.com/snapshots/476102943659/pandas-60d18771-79e0-475d-bb41-e83752a16167?versionId=.QDZCJomSUkX7kG_LxQEtKS2_b8QCdq6&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJ%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJIMEYCIQDE4KuNeqI5uY92SfbqPKmcSR7A%2BI2jp29kMw8xlYDm%2BgIhAPNdAflr7OQXed%2BeQoodLWDyA9luHPx6M1wcPEjnpHNuKvoDCGcQABoMNzQ5Njc4OTAyODM5IgzmgtZ2AqWvxHeVL5Yq1wOqqtRg4GX0L7n%2B6etb7NknL21s%2FLFOTzahb7ox6jsqDZVvODFfb0cLIKFzoNYgdBb5lN2%2FLYLofLa%2FiaqNEt7wZl2lpDX%2BMblv%2FOUyv05mpYiT45Bv83jW6a5sLMI4Zn3wSDzRq1mwM4W4CRby7%2FX3V4h2rZoRpbiMUoNC1Dq%2F%2Bi6lP8Hrwl7vHw9yBGecVK0Mobu6zyvd%2BMzHurb6PHi%2FY5Hio8IiZqZgwpQiNN18k9k2%2F88RbCmdNm9mT93JcfXyqiowD%2BzJyhSigEepU%2BE%2F3gDcd%2BGYewGIQvx4l5XwwC78quh9iJ%2F7x3hH93b%2FbqajfPNjz88dKrdeUt2OWgeRApCv0b1EIac0YAZ5rFnkzT8UvI%2BI8FVqK7Ch0MDGfTp1f8HaUixpMv0eug%2BTHs2QKZ1t1DjC2Eh%2F8gwxQh3QL34j7vSXIJQoSGPXhw8W%2FMCnfkD%2FieEztRPO8hG2y8bChe1UCH5W8cMXtYG%2F1ZAWj%2BBXU8Jgi%2Bf16tCPXNnZ4B%2BBs3lPWnblE%2BaJNzTa7Y2adYzV3hCfmUKqxZcFg9MQWoRkkfPsUHafciUSULoQi33EHdXWaXSEp%2BP3%2FU%2BUjjskVgMtsfbNf8k7BiEimFVniX7FhA9AhTkw4vz6jAY6pAEYnKzXQy9zLGa9aW1iI%2B7FBq5M5qDRf4jq%2FWKT42eRsAFJJO0VHsF%2FKSjNXHSiRU4lflClH7ISsmJadBcSK3GXDT%2FdgR7miSkfeAwVDZZd%2FUdD3ZDNbSdj6mEK4ls%2BPuUq4FxZb5CYbkTxiH0W2rmgA6WynRsIQNELExi3lopcNOM4Ug%2FjRqJ6KupWrgnB96pcKT8Dg9Wfhn0fKkXCu9XBTVnMgQ%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20211124T232926Z&X-Amz-SignedHeaders=host&X-Amz-Expires=600&X-Amz-Credential=ASIA25DCYHY3YJYHVE7N%2F20211124%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=20a203ff0ab0d3166067fd191735036ee60ff80746a34874ae4b02dcf91099bf"
    },
    "Version": 1,
    "CompatibleRuntimes": [
        "python3.9"
    ]
}