I am facing an error when tryin to build a docker image with next.js, here is my docker image:

#Installing and Prep Stage

FROM node:22 AS prep

WORKDIR /
# set the working directory in the container

COPY package*.json ./
# copy package.json from host machine to image current directory

RUN npm ci


# Build Stage

FROM node:22 AS build

WORKDIR /

COPY --from=prep ./node_modules ./node_modules
COPY . .

RUN npm run build


# Test Stage

FROM node:22 AS test

WORKDIR /app

COPY --from=build /.next /.next

COPY --from=build /.next ./.next
COPY --from=build /public ./public
COPY --from=build /package.json ./package.json
COPY --from=build /node_modules ./node_modules


COPY --from=build --chown=nextjs:nodejs /.next ./.next
COPY --from=build /node_modules ./node_modules
COPY --from=build /package.json ./package.json
COPY --from=build /public ./public

COPY . .
#copy everything from host machine to this image

RUN npm run test


# Running the app stage

FROM node:22 AS run

WORKDIR /app
COPY --from=build --chown=nextjs:nodejs /.next ./.next
COPY --from=build /node_modules ./node_modules
COPY --from=build /package.json ./package.json
COPY --from=build /public ./public
COPY . .

CMD ["npm","run","dev"]

i get error in the build stage:

172.3 ./lib/python3/dist-packages/mercurial/templates/static/mercurial.js
172.3 427:10  Error: 'ajaxScrollInit' is defined but never used.  @typescript-eslint/no-unused-vars
172.3 506:10  Error: 'renderDiffOptsForm' is defined but never used.  @typescript-eslint/no-unused-vars

I have no idea where ajaxScrollinit or renderDiffOptsForm are coming from? neither the mercurial.js file, but i assume it has to do with how docker build the image and not my project itself


How do i fix the issue?

Also, if i want to build an image in production, do i just replace the cmd commands to ["npm","run","start"], how do i expose it to the actual domain in the case of production?