CAN'T ACCESS MY WEBSITE AFTER DEPLOY

Hi everyone,

Today I have deployed my website via digitalOcean with docker file, but I got an issue that I cant view my website (link: http://157.245.158.88:4000)

I checked my website on my local, it works fine

exp: when I type “docker run -d -p 4000:3000 ductrung/test-ci-cd:v1”, I can view my website from port 4000

I just checked log on my server and I saw my container when my web deployed it had status running, but when user go to the page container will exit and response “This site can’t be reached”,

Hope guys can help me, Thank you

extra information:

DockerFile:

 # ==== CONFIGURE =====
 # Use a Node 16 base image
 FROM node:16-alpine
 # Set the working directory to /app inside the container
 WORKDIR /app
 # Copy app files
 COPY . .
 # ==== BUILD =====
 # Install dependencies (npm ci makes sure the exact versions in the lockfile gets installed)
 RUN npm ci
 # Build the app
 RUN npm run build
 # ==== RUN =======
 # Set the env to "production"
 ENV NODE_ENV production
 # Expose the port on which the app will be running (3000 is the default that `serve` uses)
 EXPOSE 3000
 # Start the app
 CMD [ "npx", "serve", "build" ]

.gitlab-ci.yml

variables:
  IMAGE_NAME: ductrung/test-ci-cd
  IMAGE_TAG: v1

services:
  - docker:dind

stages:
  - test
  - build
  - deploy

run-tests:
  image: cypress/browsers:node18.12.0-chrome107
  stage: test
  script:
    - echo Pass test

.build:
  stage: build
  image: docker:20.10.16
  services:
    - docker:20.10.16-dind
  variables:
    DOCKER_TLS_CERTDIR: ""
  before_script:
    - echo Welcome to come new world, $USER_NAME
    - echo $IMAGE_NAME:$IMAGE_TAG
    - docker login -u $REGISTRY_USER -p $REGISTRY_PASSWORD
  script:
    - docker build -t $IMAGE_NAME:$IMAGE_TAG .
    - docker push $IMAGE_NAME:$IMAGE_TAG

build-dev:
  extends: .build
  only:
    - main

deploy_development:
  stage: deploy
  before_script:
    - chmod 400 $SSH_KEY
  script:
    - echo $SSH_KEY $HOST
    - ssh -o StrictHostKeyChecking=no -i $SSH_KEY root@157.245.158.88 "
      docker login -u $REGISTRY_USER -p $REGISTRY_PASSWORD &&
      docker run -d -p 4000:3000 $IMAGE_NAME:$IMAGE_TAG"