publish-staging.sh

#!/bin/bash -e
GIT_VER=$(git describe --tags)
DATE=$(date +%Y-%m-%dT%H:%M:%S%z)
DESCRIPTION="Bash in AWS Lambda version $GIT_VER [https://github.com/kayac/bash-lambda-layer]
published at $DATE
"

# AWS Regions
REGIONS=(
    "${AWS_REGION:?no-region}"
)
LAYER_NAME="bash-al2-staging"

for region in ${REGIONS[@]}; do
    echo "Publishing layer to $region..."

    LAYER_ARN=$(aws lambda publish-layer-version --region $region --layer-name $LAYER_NAME --description "$DESCRIPTION" --compatible-runtimes provided.al2 --license MIT --zip-file fileb://export/layer.zip | jq -r .LayerVersionArn)
    if [ -n "$PERMISSION" ]; then
        POLICY=$(aws lambda add-layer-version-permission \
            --region $region \
            --layer-name $LAYER_NAME \
            --version-number $(echo -n $LAYER_ARN | awk -F':' '{print $8}') \
            --statement-id $LAYER_NAME-public \
            --action lambda:GetLayerVersion \
            $PERMISSION)
        echo $POLICY
    fi

    echo $LAYER_ARN
    echo "$region complete for Staging"
    echo ""
done

echo "Successfully published to all regions"