[英]Next.js. Required files for docker image
I am creating a Next.js project using Docker, but every time I run docker build
, the docker image is 300 MB+.我正在使用 Docker 创建一个 Next.js 项目,但是每次运行docker build
时,Z05B6053C3008B DA.BDA40AF6Z6 图像都是My goal is to reduce the size of the docker image.我的目标是减小 docker 图像的大小。 For this I started using zeit/pkg but it doesn't work properly.为此,我开始使用zeit/pkg ,但它不能正常工作。
Question:问题:
What files are required in Next.js for docker build
? Next.js 中需要哪些文件来docker build
? (I see COPY. . in each tutorial) (我在每个教程中都看到了COPY.. )
And how can I reduce the size of the docker image?以及如何减小 docker 图像的大小?
I followed this tutorial: https://medium.com/@evenchange4/deploy-a-commercial-next-js-application-with-pkg-and-docker-5c73d4af2ee我遵循了本教程: https://medium.com/@evenchange4/deploy-a-commercial-next-js-application-with-pkg-and-docker-5c73d4af2ee
Dockerfile: Dockerfile:
FROM node:lts-alpine as build-env
WORKDIR /app
COPY . .
RUN yarn install --pure-lockfile --ignore-engines
ENV NODE_ENV=production
RUN yarn run build
RUN yarn run pkg
FROM node:alpine
RUN apk update && \
apk add --no-cache libstdc++ libgcc ca-certificates && \
rm -rf /var/cache/apk/*
WORKDIR /app
COPY --from=build-env /app/pkg .
ENV NODE_ENV=production
EXPOSE 8080
CMD ./next-app
package.json: package.json:
{
"name": "next-app",
"bin": "server.js",
"pkg": {
"assets": [
".next/**/*"
],
"scripts": [
".next/**/*.js"
]
},
"scripts": {
"test": "jest",
"dev": "next",
"build": "next build",
"start": "NODE_ENV=production node server.js",
"pkg": "pkg . -t node13-linux-x64 -o pkg"
},
"dependencies": {
"next": "^9.4.0",
"react": "^16.13.1",
"react-dom": "^16.13.1"
},
"devDependencies": {
"pkg": "4.4.8",
"typescript": "^3.9.2"
}
}
I know it has been over 5 months since this question was asked, but I was running in the same issue.我知道这个问题被问到已经超过 5 个月了,但我遇到了同样的问题。
I solved it by setting up a multistage build in docker and only copy the required files to run a production nextjs app.我通过在 docker 中设置多阶段构建解决了这个问题,并且只复制了运行生产 nextjs 应用程序所需的文件。
My Dockerfile我的 Dockerfile
# Build the app
FROM node:14-alpine as build
WORKDIR /app
COPY . .
RUN npm ci
RUN npm run build
COPY ./.next ./.next
# Run app
FROM node:14-alpine
# Only copy files required to run the app
COPY --from=build /app/.next ./
COPY --from=build /app/package.json ./
COPY --from=build /app/package-lock.json ./
EXPOSE 3000
# Required for healthcheck defined in docker-compose.yml
# If you don't have a healthcheck that uses curl, don't install it
RUN apk --no-cache add curl
# By adding --production npm's devDependencies are not installed
RUN npm ci --production
RUN ./node_modules/.bin/next telemetry disable
RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001
USER nextjs
CMD ["npm", "start"]
An excerpt from my package.json摘自我的 package.json
"dependencies": {
"next": "^9.5.5",
"next-compose-plugins": "^2.2.0",
"react": "^16.12.0",
"react-dom": "^16.12.0"
},
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