Is there a better way to copy files and folders to a docker container?-CodePudding

This is what I came up with but it seems clunky to me. Is there a way to streamline the COPY command? Note that not all the folders need to copied.

I did check out Docker's documentation regarding, and it seems like this may be the only way? I was just checking if anyone else had a brighter idea. Thanks!

# Copy files to container
COPY src/ /opt/build_area/src/
COPY public/  /opt/build_area/public/
COPY app.js doc* .en* tag-push.sh react-0.3.1.tgz package.json .npmrc /opt/build_area/

This is the folder structure:

$ tree -L 1
.
├── .dockerignore
├── .env
├── .env.development
├── .git/
├── .gitignore
├── .npmrc
├── Dockerfile
├── Dockerfile-build
├── README.md
├── app.js
├── azure-pipelines-static.yml
├── azure-pipelines.yml
├── docker/
├── docker-compose-run.yml
├── docker-compose.yml
├── node_modules/
├── package-lock.json
├── package.json
├── public/
├── react-0.3.1.tgz
├── src/
├── tag-push.sh
└── test-azure-pipelines-static.yml

5 directories, 18 files

CodePudding user response：

This is what I came up with helpful comments from @TahaNaqvi and @DavidMaze. This is much easier to read.

# Copy files to container
WORKDIR /opt/build_area/

COPY src/ ./src/
COPY public/  ./public/

COPY app.js           \
     .npmrc           \
     doc* .en*        \
     tag-push.sh      \
     package.json     \
     react-0.3.1.tgz  /opt/build_area/

CodePudding user response：

dockerignore file can be used just like gitignore file. You can specify files folders to be ignored which will not be copied by COPY command. More doc here - https://docs.docker.com/engine/reference/builder/#dockerignore-file