kubernetes and gcloud cli install in dockerfile

Dockerfile

# Use an official Ubuntu image as the base image
FROM ubuntu:20.04

ENV DEBIAN_FRONTEND=noninteractive 

# Install necessary dependencies and tools
RUN apt-get update && apt-get install -y \
    curl tcl python3 python3-pip tzdata curl git htop \
    man unzip vim wget tar python2 python3 nano nodejs

#### kubernetes ####
RUN curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
RUN curl -LO "https://dl.k8s.io/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl.sha256"
RUN chmod +x ./kubectl
RUN mv ./kubectl /usr/local/bin

# Install the Google Cloud SDK
RUN curl -sSL https://sdk.cloud.google.com | bash

# Set default Google Cloud project and region (replace with your values)
ENV GOOGLE_PROJECT <project_name>
ENV GOOGLE_REGION <region_name>

RUN echo 'alias gcloud=/root/google-cloud-sdk/bin/gcloud' >> ~/.bashrc
ENV PATH=$PATH:/root/google-cloud-sdk/bin

# Run the Google Cloud SDK installer
RUN /root/google-cloud-sdk/bin/gcloud config set project <project_id>

# infinity loop
ENTRYPOINT sleep infinity