Update Dockerfile

docker/Dockerfile

@@ -1,53 +1,6 @@
-FROM ubuntu:20.04
-RUN \
-  # configure the "jhipster" user
-  groupadd jhipster && \
-  useradd jhipster -s /bin/bash -m -g jhipster -G sudo && \
-  echo 'jhipster:jhipster' |chpasswd && \
-  mkdir /home/jhipster/app && \
-  export DEBIAN_FRONTEND=noninteractive && \
-  export TZ=Europe\Paris && \
-  ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone && \
-  apt-get update && \
-  # install utilities
-  apt-get install -y \
-    wget \
-    sudo && \
-  # install node.js
-  wget https://nodejs.org/dist/v14.16.0/node-v14.16.0-linux-x64.tar.gz -O /tmp/node.tar.gz && \
-  tar -C /usr/local --strip-components 1 -xzf /tmp/node.tar.gz && \
-  # upgrade npm
-  npm install -g npm && \
-  # install yeoman
-  npm install -g yo && \
-  # cleanup
-  apt-get clean && \
-  rm -rf \
-    /home/jhipster/.cache/ \
-    /var/lib/apt/lists/* \
-    /tmp/* \
-    /var/tmp/*
+FROM node:22-slim
 
-# install jhipster
-RUN npm install -g generator-jhipster@7.0.1
+# install the blueprint
+RUN npm install -g generator-jhipster-nodejs
 
-RUN \
-  # install the blueprint
-  npm install -g generator-jhipster-nodejs && \
-  # fix jhipster user permissions
-  chown -R jhipster:jhipster \
-    /home/jhipster \
-    /usr/local/lib/node_modules && \
-  # cleanup
-  rm -rf \
-    /home/jhipster/.cache/ \
-    /var/lib/apt/lists/* \
-    /tmp/* \
-    /var/tmp/*
-
-# expose the working directory
-USER jhipster
-ENV PATH $PATH:/usr/bin
-WORKDIR "/home/jhipster/app"
-VOLUME ["/home/jhipster/app"]
 CMD nhipster