task: move to yarn v4 and node20

Author: chriswk

.gitignore

@@ -95,6 +95,7 @@ dist
 .serverless/
 
 # FuseBox cache
+
 .fusebox/
 
 # DynamoDB Local files
@@ -104,4 +105,12 @@ dist
 .tern-port
 
 # IntelliJ
-.idea
+.idea
+
+# Yarn v4
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

.nvmrc

@@ -1 +1 @@
-v14.19
+20

.yarn/releases/yarn-4.3.1.cjs

@@ -0,0 +1,3 @@
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.3.1.cjs

.yarnrc.yml

@@ -1,16 +1,20 @@
-FROM node:18-alpine as builder
+FROM node:20-alpine as builder
 
 WORKDIR /unleash-proxy
 
 COPY . .
 
-RUN yarn install --frozen-lockfile --ignore-scripts
+RUN corepack enable
+
+ENV YARN_ENABLE_SCRIPTS=false
+
+RUN yarn install --immutable
 
 RUN yarn build
 
-RUN yarn install --production --frozen-lockfile --ignore-scripts --prefer-offline
+RUN yarn workspaces focus -A --production
 
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Upgrade (addresses OpenSSL CVE-2023-6237 && CVE-2024-2511)
 RUN apk update && \
@@ -30,7 +34,7 @@ RUN chown -R node:node /unleash-proxy
 
 ENTRYPOINT ["/sbin/tini", "--"]
 
-EXPOSE 4242
+EXPOSE 3000
 
 USER node
 

Dockerfile

@@ -6,7 +6,7 @@
   "types": "dist/index.d.ts",
   "scripts": {
     "build": "tsc --pretty",
-    "example": "npm run build && node example",
+    "example": "yarn run build && node example",
     "lint": "eslint ./src",
     "test": "jest",
     "updateSnapshots": "jest -u",
@@ -20,7 +20,7 @@
     "url": "git+https://github.com/Unleash/unleash-proxy.git"
   },
   "engines": {
-    "node": ">=16"
+    "node": ">=20"
   },
   "keywords": [
     "Unleash",
@@ -95,5 +95,6 @@
     "qs": "^6.9.7",
     "json5": "^2.2.2",
     "cookiejar": "^2.1.4"
-  }
+  },
+  "packageManager": "yarn@4.3.1"
 }