Upgrade to Node 18

Dockerfile

@@ -2,7 +2,7 @@ FROM amazonlinux:2-with-sources
 
 WORKDIR /build
 
-RUN curl --silent --location https://rpm.nodesource.com/setup_16.x | bash -
+RUN curl --silent --location https://rpm.nodesource.com/setup_18.x | bash -
 
 RUN yum -y install nodejs
 

README.md

@@ -22,21 +22,7 @@ A pre-built layer zip file is available on the [Releases page](https://github.co
     git clone [email protected]:bubblydoo/lambda-layer-sharp.git
     cd lambda-layer-sharp/
     ```
-1. Install dependencies:
-    ```sh
-    docker run -v "$PWD":/var/task lambci/lambda:build-nodejs12.x npm --no-optional --no-audit --progress=false install
-    ```
-1. Build the layer:
-    ```sh
-    docker run -v "$PWD":/var/task lambci/lambda:build-nodejs12.x node ./node_modules/webpack/bin/webpack.js
-    ```
-1. Perform a smoke-test:
-    ```sh
-    docker run -w /var/task/dist/nodejs -v "$PWD":/var/task lambci/lambda:build-nodejs12.x node -e "console.log(require('sharp'))"
-    ```
-1. Import created layer into your AWS account:
-    ```sh
-    aws lambda publish-layer-version --layer-name sharp --description "Sharp layer" --license-info "Apache License 2.0" --zip-file fileb://dist/sharp-layer.zip --compatible-runtimes nodejs12.x
+1. Build a multi-architecture Docker image:
     ```
 
 ## Auto-publish

package.json

@@ -13,9 +13,9 @@
     "sharp": "latest"
   },
   "engines": {
-    "node": ">=12.14.0"
+    "node": ">=18.0.0"
   },
   "volta": {
-    "node": "16.16.0"
+    "node": "18.17.0"
   }
 }