How to install java 8 using dockerfile in python:3.8-slim-buster base image

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Below is my Dockerfile

FROM python:3.8-slim-buster
WORKDIR /app
RUN python --version
RUN apt-get install java-1.8.0-openjdk-devel
RUN python -m pip install --upgrade pip
RUN pip install --default-timeout=100 pyspark

I want to install java 8 and set JAVA_HOME variables. But when I am trying to build above image I am getting below error:

E: Unable to locate package java-1.8.0-openjdk-devel
E: Couldn't find any package by glob 'java-1.8.0-openjdk-devel'
E: Couldn't find any package by regex 'java-1.8.0-openjdk-devel'

This is my first attempt in creating a docker image. Please suggest what is wrong with above Dockerfile. I am working on centos7.

dockerfile docker centos python java
1 Answers

Another approach is that you can build your Dockerfile based on FROM ubuntu:20.04 where Python 3.8 is set as default (here). Then, install java and pip later.

FROM ubuntu:20.04

ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64/

RUN apt-get update -y \
&& apt-get install -y software-properties-common \
&& add-apt-repository ppa:deadsnakes/ppa \
&& apt-get install openjdk-8-jdk -y \
&& apt-get install python3-pip -y \
&& export JAVA_HOME \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*

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