nextjs docker template update (#61)

* chore: reactjs, preactjs, vuejs dockerfile updated

* chore: update build directory from build to dist

* feat: nextjs docker template updated to bullseye and os support

Author: tanmoysrt

docker_config_generator/config.yaml

@@ -204,14 +204,14 @@ templates:
   nextjs:
     name: nextjs.Dockerfile
     variables:
+      SETUP_COMMAND:
+        type: string
+        description: Setup and install dependencies
+        default: npm install
       BUILD_COMMAND:
         type: string
         description: Build command for nextjs
         default: npm run build
-      PORT:
-        type: string
-        description: Port for nextjs
-        default: 80
   nodejs:
     name: nodejs.Dockerfile
     variables:

docker_config_generator/templates/nextjs.Dockerfile

@@ -1,48 +1,55 @@
-# Install dependencies only when needed
-FROM node:18.11-slim AS deps
-WORKDIR /app
-# Install dependencies based on the preferred package manager
-COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* ./
-RUN \
-  if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
-  elif [ -f package-lock.json ]; then npm ci; \
-  elif [ -f pnpm-lock.yaml ]; then yarn global add pnpm && pnpm i --frozen-lockfile; \
-  else echo "Lockfile not found." && exit 1; \
-  fi
-
-# Rebuild the source code only when needed
 FROM node:18.11-slim AS builder
+WORKDIR /app
 
-# Build args
-ARG BUILD_COMMAND="npm run build"
+# Copy AptFile [optional]
+COPY AptFile* ./
+RUN test -f AptFile && apt update -yqq && xargs -a AptFile apt install -yqq || true
 
-WORKDIR /app
+# Copy SetupCommand [optional]
+COPY SetupCommand* ./
+RUN test -f SetupCommand && while read -r cmd; do eval "$cmd"; done < SetupCommand || true
+
+# Copy source code
 COPY . .
-COPY --from=deps /app/node_modules ./node_modules
+
+# Install dependencies
+ARG SETUP_COMMAND="npm install"
+RUN ${SETUP_COMMAND}
+
+# Prepare script
 RUN touch ./modify.js
 RUN echo 'let data = require("./next.config.js");' >> ./modify.js
 RUN echo 'data.output = "standalone";' >> ./modify.js
 RUN echo 'require("fs").writeFileSync("./next.config.js", `module.exports = ${JSON.stringify(data, null, 4)}`);'  >> ./modify.js
 RUN node ./modify.js
 RUN rm ./modify.js
-ENV NODE_ENV production
-RUN ${BUILD_COMMAND} && npm prune --production
+
+# Build nextjs app
+ARG BUILD_COMMAND="npm run build"
+RUN ${BUILD_COMMAND}
 
 # Production image, copy all the files and run next
 FROM node:18.11-slim AS runner
 
-# Build args
-ARG PORT="80"
+# Copy AptFile [optional]
+COPY AptFile* ./
+RUN test -f AptFile && apt update -yqq && xargs -a AptFile apt install -yqq || true
+
+# Copy SetupCommand [optional]
+COPY SetupCommand* ./
+RUN test -f SetupCommand && while read -r cmd; do eval "$cmd"; done < SetupCommand || true
 
 WORKDIR /app
-ENV NODE_ENV production
+
 RUN addgroup --gid 1001 nodejs
 RUN adduser --disabled-password --gecos "" --uid 1001 --ingroup nodejs nextjs
 COPY --from=builder /app/next.config.js ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./        
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 
 USER nextjs
-EXPOSE ${PORT}
-ENV PORT ${PORT}
+
+EXPOSE 80
+ENV PORT 80
+
 CMD ["node", "server.js"]