Currently I am running into long installation process because cypress is in my dev dependencies, and when I build the following docker image:
# Install dependencies only when needed
FROM node:14.8.0-alpine3.12 AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat
WORKDIR /app
COPY package.json ./
RUN apk add git
RUN npm cache clean -f
RUN npm cache verify
RUN npm install
RUN mkdir /app/.next
# Rebuild the source code only when needed
FROM node:14.8.0-alpine3.12 AS builder
WORKDIR /app
COPY . .
COPY --from=deps /app/node_modules ./node_modules
RUN npm cache clean -f
RUN npm cache verify
RUN npm run build && npm install --production --ignore-scripts --prefer-offline
# Production image, copy all the files and run next
FROM node:14.8.0-alpine3.12 AS runner
WORKDIR /app
RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001
# You only need to copy next.config.js if you are NOT using the default configuration
COPY --from=builder /app/next.config.mjs ./
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/.env.production ./
USER nextjs
EXPOSE 3000
# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry.
# ENV NEXT_TELEMETRY_DISABLED 1
CMD ["npm", "start"]
The installation process takes a while because cypress takes a long time. Cypress is not needed for the prod images.It is not needed for the testing image. It is needed for the integration tests.
Is there any way to split that up in the package.json, so that it does not need to installed in the other scenarios, or a different method where it I can avoid installing it in unnecessary circumstances?