Failed to build docker

[emmanuel-libertechy]

Encountered the error below

---

---

Dockerfile:7

5 | RUN git submodule update --init themes/introduction
6 | >>> RUN hugo && mv public/* /usr/share/nginx/html
7 | EXPOSE 80
8 |

ERROR: failed to solve: process "/bin/sh -c hugo && mv public/* /usr/share/nginx/html" did not complete successfully: exit code: 255
Error: buildx failed with: ERROR: failed to solve: process "/bin/sh -c hugo && mv public/* /usr/share/nginx/html" did not complete successfully: exit code: 255

Cause of the error:
The error is due to the use of the nullish coalescing assignment operator (??=), which is a relatively new JavaScript feature not supported by the version of Node.js in use in the Docker image.

Solution:
Updated the Dockerfile to the below:
FROM nginx:1.18

Install dependencies, including a newer Node.js version and other required tools

RUN curl -sL https://deb.nodesource.com/setup_18.x | bash - &&
apt-get update -y &&
apt-get install -y git curl nodejs &&
curl -sL https://github.com/gohugoio/hugo/releases/download/v0.72.0/hugo_extended_0.72.0_Linux-64bit.tar.gz | tar -xz hugo &&
mv hugo /usr/bin &&
npm install -g postcss-cli autoprefixer postcss

Clone the repository

RUN git clone https://github.com/MicrosoftDocs/mslearn-aks-deployment-pipeline-github-actions /contoso-website

Set the working directory

WORKDIR /contoso-website/src

Initialize and update git submodules

RUN git submodule update --init themes/introduction

Update npm packages

RUN npm update

Build the Hugo site and move the generated files to the Nginx html directory

RUN hugo && mv public/* /usr/share/nginx/html

Expose port 80

EXPOSE 80