Merge pull request #13 from yoziru/update-yarn-v2

upgrade to yarn v2+

Author: yoziru

.dockerignore

@@ -7,3 +7,4 @@ Dockerfile
 Makefile
 .github
 .git
+.yarn

.gitignore

@@ -4,7 +4,7 @@
 /node_modules
 /.pnp
 .pnp.js
-.yarn/install-state.gz
+.yarn
 
 # testing
 /coverage

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

Dockerfile

@@ -3,8 +3,8 @@ ARG NODE_VERSION=lts
 FROM node:$NODE_VERSION-alpine AS builder
 ENV YARN_CACHE_FOLDER=/opt/yarncache
 WORKDIR /opt/app
-COPY package.json yarn.lock ./
-RUN yarn install --frozen-lockfile
+COPY package.json yarn.lock .yarnrc.yml .yarn/ ./
+RUN corepack enable && yarn install --immutable
 # patch logging for requestHandler
 RUN sed -Ei \
     -e '/await requestHandler/iconst __start = new Date;' \
@@ -40,6 +40,12 @@ RUN chown nextjs:nodejs .next
 COPY --from=builder --chown=nextjs:nodejs /opt/app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /opt/app/.next/static ./.next/static
 
+# Copy Yarn Berry files for runtime (if needed for PnP or CLI usage)
+COPY --from=builder /opt/app/.yarnrc.yml ./
+COPY --from=builder /opt/app/.yarn ./.yarn
+COPY --from=builder /opt/app/package.json ./
+COPY --from=builder /opt/app/yarn.lock ./
+
 USER nextjs
 
 EXPOSE 3000

package.json

@@ -49,5 +49,5 @@
     "typescript": "^5.4.3",
     "typescript-eslint": "^7.4.0"
   },
-  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
+  "packageManager": "yarn@4.9.1"
 }