added working dockerfile and .dockerignore

.dockerignore

@@ -0,0 +1 @@
+node_modules

Dockerfile

@@ -1,9 +1,23 @@
-FROM node:16-alpine as builder
-WORKDIR '/oddjobs'
-COPY package.json .
+# Use an official Node runtime as a parent image
+FROM node:16
+
+# Set the working directory to /app
+WORKDIR /app
+
+# Copy the package.json and package-lock.json to the working directory
+COPY ./package*.json ./
+
+# Install the dependencies
 RUN npm install
+
+# Copy the remaining application files to the working directory
 COPY . .
+
+# Build the application
 RUN npm run build
 
-FROM nginx
-COPY --from=builder /app/build /usr/share/nginx/html
+# Expose port 3000 for the application
+EXPOSE 3000
+
+# Start the application
+CMD [ "npm", "run", "start" ]