DevTools - ClicAndCode

Dockerfile : Build multi-stage

Avancé

FROM node:18 as builder
WORKDIR /app
COPY . .
RUN npm run build

FROM nginx:alpine
COPY --from=builder /app/build /usr/share/nginx/html

Dockerfile : Fichier .dockerignore

Facile

node_modules
npm-debug.log
.git
Dockerfile

Dockerfile : Instruction ARG

Intermédiaire

ARG APP_VERSION
ENV APP_VERSION=${APP_VERSION}

Dockerfile : Instruction CMD

Facile

CMD ["node", "server.js"]

Dockerfile : Instruction COPY

Facile

COPY package.json .

Dockerfile : Instruction ENV

Facile

ENV NODE_ENV=production

Dockerfile : Instruction EXPOSE

Facile

EXPOSE 3000

Dockerfile : Instruction FROM

Facile

FROM node:18-alpine

Dockerfile : Instruction HEALTHCHECK

Avancé

HEALTHCHECK --interval=30s --timeout=10s --retries=3 CMD curl -f http://localhost/ || exit 1

Dockerfile : Instruction RUN

Facile

RUN npm install

Dockerfile : Instruction USER

Intermédiaire

RUN addgroup -S appuser && adduser -S appuser -G appuser
USER appuser

Dockerfile : Instruction WORKDIR

Facile

WORKDIR /app

📚 Cheatsheet