Dockerfile can not see package.json file - node.js

Question

I've got this structure of the project:
- project
-- apps
--- microservice-one
---- Dockerfile
-- package.json
-- docker-compose.yml
Here is my Dockerfile from the microservice-one:
FROM node:12.13-alpine As development
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build
CMD ["node", "dist/main"]
and docker-compose.yml
services:
microservice-one:
container_name: microservice-one
build:
context: ./apps/microservice-one
dockerfile: Dockerfile
volumes:
- .:/usr/src/app
- /usr/src/app/node_modules
ports:
- 3000:3000
expose:
- '3000'
command: npm run start
why after run docker-compose build, my console throw me this error:
#12 0.725 npm ERR! code ENOENT
#12 0.726 npm ERR! syscall open
#12 0.728 npm ERR! path /usr/src/app/package.json
#12 0.729 npm ERR! errno -2
#12 0.734 npm ERR! enoent ENOENT: no such file or directory, open '/usr/src/app/package.json'
I think that the problem is in my Dockerfile and COPY package*.json ./, is a chance that my Dockerfile can not see package.json?
Thanks for any help!

Answer 1

When your context is ./apps/microservice-one, the Dockerfile can only copy files from that directory and directories below it.
Your Dockerfile is written as if it assumes that the context is the current directory, so if you change the context and the dockerfile values in the docker-compose file, it should work.
services:
microservice-one:
container_name: microservice-one
build:
context: .
dockerfile: ./apps/microservice-one/Dockerfile
volumes:
- .:/usr/src/app
- /usr/src/app/node_modules
ports:
- 3000:3000
expose:
- '3000'
command: npm run start

Answer 2

From your filesystem structure the directory hosting Dockerfile is the build context -> microservice-one.
When you perform a docker build ..., the build context and all it's content gets wrapped up and sent over to the docker daemon, which then tries to build your container. At that time there is only access to the build context, nothing outside. ( https://docs.docker.com/engine/reference/commandline/build/#build-with-path )
So unless you move/copy your file over it will remain invisible.