[FIXED] Unable to locate package when installing Java in docker

Issue

I'm trying to install Java in a docker image in order to make working with firebase a bit easier.

When running the installation command I get the following error:

Unable to locate package openjdk-11-jre-headless

Here is the docker image definition:

FROM node:14.5

ADD . /src
WORKDIR /src
# Install OpenJDK-11
RUN apt-get update && \
    apt-get install -y openjdk-11-jre-headless && \
    apt-get clean;
RUN npm i -g firebase-tools
RUN firebase --version
RUN firebase emulators:start
EXPOSE  4400 4500 5000 5001 8001 8080 8085 9000

Solution

I guess the node image is based on debian which does not have the repository by default.

Adding the following got it working for me:

RUN echo 'deb http://ftp.debian.org/debian stretch-backports main' | tee /etc/apt/sources.list.d/stretch-backports.list

Answered By - melchoir55
Answer Checked By - Katrina (JavaFixing Volunteer)