Added scripts for building the layer archive and for deploying it to multiple regions

Author: Udith

layer/build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+echo "Building layer archive..."
+cd nodejs || exit
+npm install
+cd ../
+
+output_zip=slappforge-lambda-debug-layer-"$(date +'%Y-%m-%d')".zip
+zip -r "${output_zip}" nodejs
+echo "Build Archive: ${output_zip}"

layer/deploy.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+LAYER_NAME=slappforge-debug-nodejs
+LAYER_BUILD_VERSION=1-0-0-build-01
+
+# shellcheck disable=SC2039
+read -r -p "Name of the deployment archive: " deploymentArchive
+# shellcheck disable=SC2039
+read -r -p "AWS profile name: " profileName
+
+layerName=${LAYER_NAME}-${LAYER_BUILD_VERSION}
+
+# shellcheck disable=SC2039
+lambdaRegions=(us-east-1 us-east-2 us-west-1 us-west-2 ap-east-1 ap-south-1 ap-northeast-2 ap-southeast-1
+ap-southeast-2 ap-northeast-1 ca-central-1 eu-central-1 eu-west-1 eu-west-2 eu-west-3 eu-north-1 sa-east-1)
+
+# shellcheck disable=SC2039
+echo "Publishing layer: ${layerName} ..."
+# shellcheck disable=SC2039
+for region in "${lambdaRegions[@]}"; do
+  printf "%s " "${region}"
+
+  layerVersion=$(aws lambda publish-layer-version \
+    --region "${region}" \
+    --layer-name "${layerName}" \
+    --description "SLAppForge Live Debug for AWS - NodeJS ${LAYER_BUILD_VERSION}" \
+    --zip-file fileb://"${deploymentArchive}" \
+    --compatible-runtimes nodejs10.x nodejs12.x \
+    --profile "${profileName}" \
+    --query Version)
+
+  aws lambda add-layer-version-permission \
+    --region "${region}" \
+    --layer-name "${layerName}" \
+    --version-number "${layerVersion}" \
+    --statement-id "GlobalPermVer${layerVersion}" \
+    --action "lambda:GetLayerVersion" \
+    --principal "*" \
+    --profile "${profileName}" > /dev/null
+
+  echo "arn:aws:lambda:${region}:892904900711:layer:${layerName}:${layerVersion}"
+done