build: require Node.js 22 and base container on alpine 3.21

.github/workflows/nodejs.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
       - uses: actions/checkout@v4
       - run: npm ci
       - run: npm test

Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/node:20-alpine AS builder
+FROM docker.io/library/node:22-alpine AS builder
 RUN apk upgrade --no-cache
 WORKDIR /build
 COPY package.json package-lock.json ./
@@ -7,15 +7,16 @@ COPY . ./
 RUN node_modules/.bin/tsc
 
 
-FROM docker.io/library/node:20-alpine AS packages
+FROM docker.io/library/node:22-alpine AS packages
 RUN apk upgrade --no-cache
 WORKDIR /build
 COPY package.json package-lock.json ./
 RUN npm ci --no-audit --no-fund --no-update-notifier --omit=dev
 
 
-FROM docker.io/library/node:20-alpine AS final
-RUN apk upgrade --no-cache
+FROM docker.io/library/alpine:3.21 AS final
+RUN apk upgrade --no-cache \
+	&& apk add --no-cache nodejs
 
 ENV NODE_ENV=production
 WORKDIR /app

package.json

@@ -15,7 +15,7 @@
 	},
 	"type": "module",
 	"engines": {
-		"node": ">=20"
+		"node": ">=22"
 	},
 	"dependencies": {
 		"@grammyjs/stateless-question": "^4.0.0",
@@ -32,7 +32,7 @@
 		"@sindresorhus/tsconfig": "^7.0.0",
 		"@types/debounce-promise": "^3.1.3",
 		"@types/json-stable-stringify": "^1.1.0",
-		"@types/node": "^20.17.9",
+		"@types/node": "^22.10.1",
 		"typescript": "^5.7.2",
 		"xo": "^0.60.0"
 	},