Fix Dockerfile

Dockerfile

@@ -1,48 +1,19 @@
-## INIT STEP
-# Install dependencies only when needed
-FROM node:18-alpine AS deps
-
-RUN apk add --no-cache libc6-compat
-WORKDIR /app
-
-# Copy the files needed to install deps
-COPY package.json yarn.lock ./
-RUN yarn add sharp
-RUN yarn install --frozen-lockfile
-
-## BUILD STEP
-# Rebuild the source code only when needed
-FROM node:18-alpine AS builder
+FROM node:20 as build
 
 WORKDIR /app
 
-# Copy node_modules installed by the deps step
-COPY --from=deps /app/node_modules ./node_modules
+COPY . ./
+RUN yarn install
 
-COPY . .
-
-RUN mkdir /app/private
-RUN echo '{"token": ""}' > /app/private/portainer_api_secret.json
 RUN yarn build
 
-## RUN STEP
-FROM node:18-alpine AS runner
 
-LABEL author="neshura@neshweb.net"
+FROM node:20-alpine
+
 WORKDIR /app
+COPY --from=build /app .
 
 ENV NODE_ENV production
 
-COPY --from=builder /app/public ./public
-COPY --from=builder /app/node_modules ./node_modules
-
-# Automatically leverage output traces to reduce image size
-# https://nextjs.org/docs/advanced-features/output-file-tracing
-COPY --from=builder /app/.next/standalone ./
-COPY --from=builder /app/.next/static ./.next/static
-
-# expose port 3000
-ENV PORT 3000
-EXPOSE 3000
-
-CMD [ "yarn", "start" ]
+EXPOSE 8000
+CMD ["yarn", "preview"]