> ## Documentation Index
> Fetch the complete documentation index at: https://docs.infrastack.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Dockerize your Next.js application with OpenTelemetry via infrastack.ai
> Learn how to dockerize your Next.js application with OpenTelemetry via infrastack.ai
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#### What you will learn
* How to dockerize your Next.js application with OpenTelemetry via infrastack.ai
#### Prerequisites
* Docker installed on your machine
* An infrastack.ai account
* A Next.js application configured with the infrastack.ai SDK, see [Integrate OpenTelemetry for Next.js with infrastack.ai](/documentation/integrate-opentelemetry-for-nextjs-with-infrastack)
The application should be on the `nodejs` runtime. The `edge` runtime is not supported at this time.
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#### Overview
Docker is a platform for building, running, and shipping applications with ease. With the power of infrastack.ai and OpenTelemetry, you can get comprehensive observability for your Next.js application.
After you have configured your application with the infrastack.ai SDK by following the [Integrate OpenTelemetry for Next.js with infrastack.ai](/documentation/integrate-opentelemetry-for-nextjs-with-infrastack) guide, you can dockerize your application by following these steps:
In your `next.config.mjs` file, :
```javascript theme={null}
const nextConfig = {
output: 'standalone', // For web services/Docker
experimental: {
instrumentationHook: true, // To enable instrumentation
},
};
export default nextConfig;
```
This will allow the Next.js application to be run as a web service.
Create a `Dockerfile` in the root of your project with the following content:
```dockerfile Dockerfile theme={null}
COPY package.json package-lock.json ./
RUN npm ci
FROM base as builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build
FROM base as runner
WORKDIR /app
ENV NODE_ENV production
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs
COPY --from=builder /app/public ./public
RUN mkdir .next
RUN chown nextjs:nodejs .next
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
USER nextjs
EXPOSE 3000
ENV PORT 3000
CMD HOSTNAME="0.0.0.0" node server.js
```
In this optimized dockerfile, we are using the `base` image as the base image for the builder and runner stages. The `builder` stage is used to build the application and the `runner` stage is used to run the application.
You can change the port if you will not be using the default port of 3000.
Create a `.dockerignore` file in the root of your project with the following content:
```dockerignore .dockerignore theme={null}
Dockerfile
.dockerignore
node_modules
.next
README.md
npm-debug.log
!.next/static
!.next/standalone
.git
```
This will prevent unnecessary files from being included in the Docker image. You can add more files to the ignore list if you see fit.
Build the Docker image with the following command:
```bash theme={null}
docker image build -t nextjs-example:latest .
```
You can change the name `nextjs-example:latest` to your desired name and tag.
Run the Docker container with the following command:
```bash theme={null}
docker container run -p 3000:3000 -e INFRASTACK_API_KEY= nextjs-example:latest
```
You can verify that the application is working by navigating to `http://localhost:3000` in your web browser.
Now, you can check your data in the [infrastack.ai](https://app.infrastack.ai) dashboard.
You can push the Docker image to a registry such as [Docker Hub](https://hub.docker.com) or [GitHub Container Registry](https://docs.github.com/en/packages/working-with-a-github-package-registry/working-with-the-container-registry) and then deploy it to a cloud provider of your choice.
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