Service: web in poetic-adventure project

Deployment ID: 1acb3b80-04e3-47bf-bef6-2555841fa6ba

Issue: Docker multi-stage builder COPY not receiving files from builder stage due to buildkit layer caching; final image digest unchanged across builds despite builder generating new files

can you paste your dockerfile? mainly need to see the COPY --from=builder line and the builder stage's WORKDIR. also do the build logs show the builder steps actually running, or do they all say "cached"?

packages/api/Dockerfile

FROM node:20-alpine AS builder

WORKDIR /app

COPY package*.json ./

RUN npm install

COPY tsconfig.json ./

COPY src ./src

RUN npm run build

FROM node:20-alpine AS runner

WORKDIR /app

COPY package*.json ./

RUN npm install --omit=dev && npm cache clean --force

COPY --from=builder /app/dist ./dist

RUN addgroup -S haul && adduser -S haul -G haul

USER haul

EXPOSE 3000

ENV NODE_ENV=production

ENV PORT=3000

CMD ["node", "dist/index.js"]

note: we are trying to break the build cache

The logs say that the steps are running

i think its the build context not the cache. your dockerfile is in packages/api but COPY src ./src copies from wherever the build context is. if the service's root directory in railway settings isnt set to packages/api, the builder keeps grabbing the wrong src, compiles the same code every time, and the digest never changes even tho the steps run.

go to service settings → root directory → set it to packages/api and redeploy.

if thats already set, add RUN ls -la /app/dist at the end of the builder stage and paste what the build log shows, also check your tsconfig outDir is actually dist