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To use Docker to deploy a Next.js application on HTTPS (SSL connection), you need to follow these steps:

1. Install Docker : First thing you need to do is Install Docker on your local machine.

2. Create a Next.js Application: Create a Next.js application by running the following commands in your terminal:

   npx create-next-app <app-name>
   cd <app-name>
   

3. Create a Dockerfile : Create a Dockerfile in the root directory of your application with the following contents:

   FROM node:14.15.0-alpine
   
   RUN mkdir -p /app
   WORKDIR /app
   
   COPY package.json .
   RUN npm install --production
   
   COPY . .
   
   EXPOSE 3000
   
   CMD ["npm", "run", "start"]
   

4. Build the Docker Image: In order to build the Docker image, run the following command:

   docker build -t <image-name> .
   

5. Run the Docker Container: Run the Docker container by running the following command:

   docker run -p 3000:3000 -d <image-name>
   

6. Configure HTTPS: Configure HTTPS by adding the following code to your Next.js application:

   const httpsOptions = {
    key: fs.readFileSync('/path/to/key.pem'),
    cert: fs.readFileSync('/path/to/cert.pem'),
   };
   
   const server = https.createServer(httpsOptions, app);
   

7. Update the Dockerfile: Update the Dockerfile by adding the following lines:

   COPY path/to/key.pem /app
   COPY path/to/cert.pem /app
   

8. Rebuild and run Docker container: Rebuild and run the Docker container by running the following command:

   docker build -t <image-name> .
   docker run -p 3000:3000 -d <image-name>
   

Your Next.js application is now deployed on HTTPS (SSL connection) using Docker.