build(container): use alpine as final base image

Author: EdJoPaTo

.github/dependabot.yml

@@ -20,6 +20,15 @@ updates:
       - dependency-name: "@types/node"
         update-types: ["version-update:semver-major"]
 
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "saturday"
+      time: "02:42" # UTC
+    commit-message:
+      prefix: "build(container):"
+
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:

Dockerfile

@@ -14,8 +14,9 @@ COPY package.json package-lock.json ./
 RUN npm ci --no-audit --no-fund --no-update-notifier --omit=dev
 
 
-FROM docker.io/library/node:22-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
 
 WORKDIR /app
 VOLUME /app/persist