Install Lambda Layer dependencies (Python 3.8)

install-dependencies.sh

#!/bin/sh

LAYER_DIR=lib/lambda-layers

for DIR in $(ls $LAYER_DIR); do
  echo "Installing layer: $DIR"
  cd $LAYER_DIR/$DIR
  git check-ignore * > /dev/null && rm -r $(git check-ignore *)
  docker run --rm --init -v "$(pwd):/${DIR}" lambci/lambda:build-python3.8 sh '-c' "pip install -r /${DIR}/requirements.txt --target /${DIR}/python"
done