Need Help. Having problems with containerization

[iamrahulreddy]

Hello, community.

I am encountering an issue while deploying my containerized application on Google Cloud Run. The Docker image builds successfully, but when I try to run it, I receive an error indicating that the container failed to listen on port 8080. Below are the details of my setup, the error message, and the Dockerfile used:

Error Message - "Ready condition status changed to False for Service blog-service with message: Revision 'blog-service-00001-khj' is not ready and cannot serve traffic. The user-provided container failed to start and listen on the port defined provided by the PORT=8080 environment variable. Logs for this revision might contain more information.
"

Here's My Dockerfile

Use an official Node.js runtime as a parent image

FROM node:18-alpine

Set the working directory in the container

WORKDIR /app

Install pnpm globally and clean npm cache to reduce image size

RUN npm install -g pnpm && npm cache clean --force

Copy package.json and pnpm-lock.yaml (if available)

COPY package.json pnpm-lock.yaml ./

Install dependencies

RUN pnpm install

Copy the rest of the application code

COPY . .

Build the application

RUN pnpm run build

Expose the port the app runs on (default for Cloud Run is 8080)

EXPOSE 8080

Define the command to run the application

CMD ["pnpm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "8080"]

Any Help Would Be Much Appreciated.
Thanks In Advance.