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With Docker

examples/with-docker/README.md

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With Docker

This examples shows how to use Docker with Next.js based on the deployment documentation. Additionally, it contains instructions for deploying to Google Cloud Run. However, you can use any container-based deployment host.

How to use

Execute create-next-app with npm, Yarn, or pnpm to bootstrap the example:

bash
npx create-next-app --example with-docker nextjs-docker
bash
yarn create next-app --example with-docker nextjs-docker
bash
pnpm create next-app --example with-docker nextjs-docker

Using Docker

  1. Install Docker on your machine.
  2. Build your container: docker build -t nextjs-docker ..
  3. Run your container: docker run -p 3000:3000 nextjs-docker.

You can view your images created with docker images.

In existing projects

To add support for Docker to an existing project, just copy the Dockerfile into the root of the project and add the following to the next.config.js file:

js
// next.config.js
module.exports = {
  // ... rest of the configuration.
  output: "standalone",
};

This will build the project as a standalone app inside the Docker image.

Deploying to Google Cloud Run

  1. Install the Google Cloud SDK so you can use gcloud on the command line.

  2. Run gcloud auth login to log in to your account.

  3. Create a new project in Google Cloud Run (e.g. nextjs-docker). Ensure billing is turned on.

  4. Build your container image using Cloud Build: gcloud builds submit --tag gcr.io/PROJECT-ID/helloworld --project PROJECT-ID. This will also enable Cloud Build for your project.

  5. Deploy to Cloud Run: gcloud run deploy --image gcr.io/PROJECT-ID/helloworld --project PROJECT-ID --platform managed --allow-unauthenticated. Choose a region of your choice.

    • You will be prompted for the service name: press Enter to accept the default name, helloworld.
    • You will be prompted for region: select the region of your choice, for example us-central1.

Running Locally

First, run the development server:

bash
npm run dev
# or
yarn dev

Open http://localhost:3000 with your browser to see the result.

You can start editing the page by modifying pages/index.js. The page auto-updates as you edit the file.

API routes can be accessed on http://localhost:3000/api/hello. This endpoint can be edited in pages/api/hello.js.

The pages/api directory is mapped to /api/*. Files in this directory are treated as API routes instead of React pages.