COPY cmd in multi stage build fails

General
1

Hi, can somebody help me? Already google a lot and tried a lot but it just doesn’t work.
I have this multistage build and when I try to copy my build files in the last stage, the copy cmd always fails with:

failed to compute cache key: failed to walk /var/lib/docker/tmp/buildkit-mount2911345790/home/node/app/app: lstat /var/lib/docker/tmp/buildkit-mount2911345790/home/node/app/app: no such file or directory

Here is my docker file:

# DockerFile for production environment


FROM node:18-slim as ts-compiler
ARG PORT
ARG WORK_DIR=/home/node/app
RUN apt-get update
RUN apt-get install -y openssl
RUN npm i -g npm@9.0.1
WORKDIR ${WORK_DIR}
RUN mkdir -p ${WORK_DIR}/src/submodules/common-db
COPY . .
RUN npm install
RUN npm run submodules:install
WORKDIR ${WORK_DIR}/src/submodules/common-db

RUN node_modules/prisma/build/index.js generate


WORKDIR ${WORK_DIR}
RUN npm run build


FROM node:18-slim as ts-remover
ARG PORT
ARG WORK_DIR=/home/node/app
RUN npm i -g npm@9.0.1
COPY --from=ts-compiler ${WORK_DIR}/package*.json ./
COPY --from=ts-compiler ${WORK_DIR}/lib ./
COPY --from=ts-compiler ${WORK_DIR}/jwt-prod.key ./

RUN npm ci 

FROM gcr.io/distroless/nodejs18-debian11
ARG PORT
ARG WORK_DIR=/home/node/app
WORKDIR ${WORKDIR}
COPY --from=ts-remover ${WORK_DIR}/app/lib /home/node/app/lib
COPY --from=ts-remover ${WORK_DIR}/app/jwt-prod.key /home/node/app/jwt-prod.key
COPY --from=ts-remover ${WORK_DIR}/app/package.json /home/node/app/package.json
EXPOSE ${PORT}
USER 1000
ENTRYPOINT [ "node", "./lib/index.js" ]

Any help is highly appreciated!
Thank you

2

Are you sure the path /home/node/app/app exists in the ts-remover stage? According the error message it does not. It looks like an app to many in either your “WORK_DIR” ARG or in the COPY instructions. You need to remove it either in the “WORK_DIR” ARG or in the COPY instructions.

3

thank you for your reply.
Yes I found that but even with correct paths it doesn’t work, here is my last try:


FROM node:18-slim as ts-remover

WORKDIR /home/node/app

RUN npm i -g npm@9.0.1

COPY --from=ts-compiler /home/node/app/package*.json ./

COPY --from=ts-compiler /home/node/app/lib ./

COPY --from=ts-compiler /home/node/app/jwt-prod.key ./

RUN npm ci

# FROM gcr.io/distroless/nodejs18-debian11

# ARG PORT

# ARG WORK_DIR=/home/node/

# WORKDIR /home/node/app

# COPY --from=ts-remover /home/node/app/lib /.

# COPY --from=ts-remover /home/node/app/jwt-prod.key /home/node/app/jwt-prod.key

# COPY --from=ts-remover /home/node/app/package.json /home/node/app/package.json

# EXPOSE ${PORT}

# USER 1000

ENTRYPOINT [ "node", "./lib/index.js" ]

I try now to remove the third stage and inspect wether all those things exits in the second stage

4

Please format your post properly, as it’s hard to read the way it is now.

5

Sorry will do.
I solved it. My copy cmd from stage 1 to 2 wasn’t correct.
Thank you for replies and help