Docker folder

Author: leandrodamascena

layer_v3/docker/Dockerfile

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+# First stage: setting the base image
+ARG PYTHON_VERSION=""
+
+FROM public.ecr.aws/lambda/python:${PYTHON_VERSION} AS base_build
+
+# Second stage: building the layer
+FROM base_build
+
+ARG PYTHON_VERSION=""
+ARG PACKAGE_SUFFIX=""
+
+USER root
+WORKDIR /tmp
+
+# PACKAGE_SUFFIX = '[all]==2.0.0'
+# PACKAGE_SUFFIX = '[all] @ git+https://github.com/awslabs/aws-lambda-powertools-python@v2'
+# PACKAGE_SUFFIX = '[all]'
+# PACKAGE_SUFFIX = '=='2.0.0'
+# PACKAGE_SUFFIX = ' @ git+https://github.com/awslabs/aws-lambda-powertools-python@v2'
+# PACKAGE_SUFFIX = ''
+
+# PYTHON_VERSION = 3.8, 3.9, 3.10, 3.11, and 3.12
+
+# Installing libs based on base image; We must use dnf for AL2023 (Python 3.12+)
+COPY install_libraries.sh .
+RUN ls -la
+RUN chmod a+x /tmp/install_libraries.sh
+RUN /bin/sh /tmp/install_libraries.sh
+
+# Install cython to generate native code
+RUN pip install --upgrade pip wheel && pip install --upgrade cython
+# Optimize binary size and strip debugging symbols for optimum size
+RUN CFLAGS="-Os -g0 -s" pip install -t /asset/python "aws-lambda-powertools${PACKAGE_SUFFIX}"
+
+# Removing nonessential files
+RUN cd /asset/python && \
+  # remove boto3 and botocore (already available in Lambda Runtime)
+  rm -rf boto* && \
+  # remove boto3 dependencies
+  rm -rf s3transfer* *dateutil* urllib3* six* jmespath* && \
+  # remove debugging symbols
+  find . -name '*.so' -type f -exec strip "{}" \; && \
+  # remove tests
+  find . -wholename "*/tests/*" -type f -delete && \
+  # remove python bytecode
+  find . -regex '^.*\(__pycache__\|\.py[co]\)$' -delete

layer_v3/docker/install_libraries.sh

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+#!/bin/sh
+
+al2_versions=("3.8" "3.9" "3.10" "3.11")
+
+# Flag to indicate if the version is al2 or not
+is_al2=0
+
+for version in "${al2_versions[@]}"; do
+    if [ "$PYTHON_VERSION" = "$version" ]; then
+        is_al2=1
+        break
+    fi
+done
+
+if [ "$is_al2" -eq 1 ]; then
+     yum update -y && yum install -y zip unzip wget tar gzip binutils
+     yum install -y \
+        boost-devel \
+        jemalloc-devel \
+        bison \
+        make \
+        gcc \
+        gcc-c++ \
+        flex \
+        autoconf \
+        zip \
+        git \
+        ninja-build
+
+else
+    dnf update -y && dnf install -y zip unzip wget tar gzip binutils
+    dnf install -y \
+        boost-devel \
+        jemalloc-devel \
+        bison \
+        make \
+        gcc \
+        gcc-c++ \
+        flex \
+        autoconf \
+        zip \
+        git \
+        ninja-build
+
+fi