Build once instead of at runtime

Dockerfile

@@ -1,26 +1,41 @@
+FROM node:lts-alpine AS builder
 ARG APP_VERSION=dev
-FROM node:lts-alpine AS deps
-ARG APP_VERSION
+ENV NEXT_PUBLIC_APP_VERSION=$APP_VERSION
+
 WORKDIR /app
+
 RUN corepack enable && corepack prepare yarn@4.9.1 --activate
+
 COPY package.json yarn.lock .yarnrc.yml ./
 RUN yarn install --immutable
+
+COPY . .
+RUN yarn build
+
 FROM node:lts-alpine AS runner
 ARG APP_VERSION=dev
 ENV NEXT_PUBLIC_APP_VERSION=$APP_VERSION \
     APP_VERSION=$APP_VERSION \
     NODE_ENV=production \
-    NEXT_TELEMETRY_DISABLED=1 \
-    PORT=3000
+    NEXT_TELEMETRY_DISABLED=1
 LABEL org.opencontainers.image.version=$APP_VERSION
+
 WORKDIR /app
+
 RUN corepack enable && corepack prepare yarn@4.9.1 --activate \
  && addgroup -S nodejs -g 1001 \
  && adduser  -S nextjs -u 1001
-COPY --from=deps /app/node_modules ./node_modules
-COPY --from=deps /app/package.json ./package.json
-COPY . .
-RUN chown -R nextjs:nodejs /app
+
+COPY --from=builder /app/yarn.lock ./yarn.lock
+COPY --from=builder /app/.yarnrc.yml ./.yarnrc.yml
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./package.json
+
+RUN mkdir -p /app/.yarn && chown -R nextjs:nodejs /app/.yarn
+
 USER nextjs
 EXPOSE 3000
-CMD ["sh", "-c", "yarn build && yarn start -p $PORT"]
+
+CMD ["yarn", "start"]

src/instrumentation.ts

@@ -5,6 +5,7 @@ import { prettify } from "awesome-ajv-errors";
 
 export async function register() {
   if (process.env.NEXT_RUNTIME === "nodejs") {
+    console.info(`Portfolio v2 ${process.env.NEXT_PUBLIC_APP_VERSION}`);
     const phoneRegex = /^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4}$/;
 
     const ajv = new Ajv({ allErrors: true });