在通过 Dockerfile.template 文件部署到 docker 时,我有一个可行的解决方案来构建一个 TypeScript Node 应用程序:
# Thanks: https://github.com/balenalabs/multicontainer-getting-started
FROM balenalib/%%BALENA_MACHINE_NAME%%-node
# Defines our working directory in container
WORKDIR /usr/src/app
# Install packages
RUN install_packages build-essential libraspberrypi-bin
# Copies the package.json first for better cache on later pushes
COPY package.json package.json
# Install npm dependencies on the balena.io build server,
# making sure to clean up the artifacts it creates in order to reduce the image size.
#NOTE: I removed --production option because I need to run tsc after COPY..., so larger image size remains for now.
RUN JOBS=MAX npm i
# This will copy all files in our root to the working directory in the container
COPY . ./
# Build from TypeScript
# TODO: This feels messy. How may I run `npm i --production` followed by `tsc` before copying files in Docker?
# Best answer so far for the next line: https://stackoverflow.com/questions/51083134/how-to-compile-typescript-in-dockerfile
RUN ./node_modules/typescript/bin/tsc -p ./tsconfig.json
# server.js will run when container starts up on the device
# in package.json: "serve": "node dist/server.js"
CMD ["npm", "run", "serve"]
我宁愿跑
tsc
在将文件复制到应用程序目录之前。另外,正在运行 npm i --production
这样我就不必在应用程序中有开发依赖项。但是在 npm i -g typescript
之后这似乎不起作用(在 COPY 之前),没有找到命令。最好的方法是什么?更新解决方案
与 chosen solution ,这是一个更新的脚本,适用于搜索此内容的下一个人:
###################################
# First Stage: Compile TypeScript #
###################################
# Thanks: https://stackoverflow.com/questions/60916271/how-do-i-run-typescript-tsc-before-copy-in-dockerfile-template/60917273#60917273
FROM balenalib/%%BALENA_MACHINE_NAME%%-node AS build
# Install needed packages to build raspicam Node dependencies.
RUN install_packages build-essential libraspberrypi-bin
WORKDIR /usr/src/app
# Install the Javascript dependencies, including all devDependencies.
COPY package.json .
RUN npm i
# Copy the rest of the application in and build it.
COPY . ./
# RUN TypeScript build
RUN ./node_modules/typescript/bin/tsc -p ./tsconfig.json
# Clean up node_modules to not include dev dependencies.
RUN rm -rf ./node_modules
RUN JOBS=MAX npm i --production
##################################
# Second Stage: Prepare Dist App #
##################################
FROM balenalib/%%BALENA_MACHINE_NAME%%-node
# Defines our working directory in container
WORKDIR /usr/src/app
# Install packages
RUN install_packages build-essential libraspberrypi-bin
# This will copy all files in our root to the working directory in the container
COPY --from=build /usr/src/app/dist dist
COPY package.json package.json
# server.js will run when container starts up on the device
CMD ["npm", "run", "serve"]
最佳答案
您可以使用 multi-stage build为了这。第一阶段包括所有开发依赖项,包括 tsc
;第二阶段只包含运行构建的应用程序所需的文件。
(我不熟悉您正在使用的特定构建环境,因此这将是标准的 node
图像。)
# First stage: compile things.
FROM node:12 AS build
WORKDIR /usr/src/app
# (Install OS dependencies; include -dev packages if needed.)
# Install the Javascript dependencies, including all devDependencies.
COPY package.json .
RUN npm install
# Copy the rest of the application in and build it.
COPY . .
# RUN npm build
RUN npx tsc -p ./tsconfig.json
# Now /usr/src/app/dist has the built files.
# Second stage: run things.
FROM node:12
WORKDIR /usr/src/app
# (Install OS dependencies; just libraries.)
# Install the Javascript dependencies, only runtime libraries.
COPY package.json .
RUN npm install --production
# Copy the dist tree from the first stage.
COPY --from=build /usr/src/app/dist dist
# Run the built application when the container starts.
EXPOSE 3000
CMD ["npm", "run", "serve"]
关于node.js - 如何在 Dockerfile.template 中的 `tsc` 之前运行 TypeScript `COPY`?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60916271/