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Creating a dockerfile for a .deb file – Debian

I want to create a dockerfile for a debian file extension which runs on ubuntu 18.04. So far I’ve written this

FROM ubuntu:18.04 AS ubuntu

RUN apt-get update

WORKDIR /Downloads/invisily

RUN apt-get install ./invisily.deb

All phases run fine except the last one. It shows this error:

E: Unsupported file ./invisily.deb given on commandline
The command '/bin/sh -c apt-get install ./invisily.deb' returned a non-zero code: 100

I’m new to docker and cloud so any help would be appreciated thanks!

Edit:
I solved it by putting the dockerfile and the debian file in the same directory and using COPY . ./
This is what my dockerfile looks like now:

FROM ubuntu:18.04 AS ubuntu

RUN apt-get update

WORKDIR /invisily

COPY . ./

USER root
RUN chmod +x a.deb && 
    apt-get install a.deb
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2

Answers


  1. 0

    in your WORKDIR there isn’t any invisly.deb file, so if you have it you can copy it the container like this:

    FROM ubuntu ...
WORKDIR /Downloads/invisily
RUN apt-get update
COPY ./your invisly file path ./
RUN chmod +x ./invisily 
RUN apt-get install ./invisily.deb
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  2. 0

    A few things,

    • WORKDIR is the working directory inside of your container.
    • You will need to copy the file invisily.deb from locally to your container when building your Docker image.
    • You can pass multiple bash commands in the RUN field combining them with multilines.

    Try something like this

    FROM ubuntu:18.04 AS ubuntu
WORKDIR /opt/invisily

#Drop the invisily.deb in to the same directory as your Dockerfile
#This will copy it from local to your container, inside of /opt/invisily dir
COPY invisily.deb .

RUN apt-get update && 
    chmod +x invisily.deb && 
    apt-get install invisily.deb
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