如何在Dockerfile中编译typescript

Question

I'm having trouble compiling my nodejs typescript application from a Dockerfile. When I build my docker image an inspect it is missing the dist folder entirely.

Dockerfile:

# Template: Node.js dockerfile
# Description: Include this file in the root of the application to build a docker image.

# Enter which node build should be used. E.g.: node:argon 
FROM node:latest

# Create app directory for the docker image
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app/dist

# Install app dependencies from package.json. If modules are not included in the package.json file enter a RUN command. E.g. RUN npm install <module-name>
COPY package.json /usr/src/app/
RUN     npm install
RUN     npm install tsc -g
RUN     tsc

# Bundle app source
COPY . /usr/src/app

# Enter the command which should be used when the image starts up. E.g. CMD ["node", "app.js"]
CMD [ "node", "server.js"]

When I run the image locally and ls to reveal files/folders:

# ls
node_modules  package-lock.json  package.json  src

Any suggestions to where i am going wrong?

Answer 1

As I far as I know,
the WORKDIR don't have to be created by yourself. Here's the documentation for WORKDIR .

Afterwards you don't have to copy by hand to the specific folder, because after WORKDIR command the copy command would copy the files for you.

Therefore I suggest you to use the following Dockerfile:

    FROM node:alpine
    WORKDIR /usr/yourapplication-name
    COPY package.json .
    RUN npm install\
        && npm install tsc -g
    COPY . .
    RUN tsc
    CMD ["node", "./dist/server.js"]

As a tiny tipp: I would use typescript as a dependency in my package.json and then just use the following file:

    FROM node:alpine
    WORKDIR /usr/yourapplication-name
    COPY package.json .
    RUN npm install
    COPY . .
    RUN tsc
    CMD ["node", "./dist/server.js"]