I have a Dockerfile that is supposed to create an Ubuntu container and run an ansible-playbook file. However, as soon as the file gets to the task of updating the OS and running the ansible installation, I get this error:

E: Package 'python-dev' has no installation candidate
The command '/bin/sh -c apt-get update &&   apt-get install -y gcc python-dev libkrb5-dev &&   apt-get install python3-pip -y &&   pip3 install --upgrade pip &&   pip3 install --upgrade virtualenv &&   pip3 install pywinrm[kerberos] &&   apt install krb5-user -y &&   pip3 install pywinrm &&   pip3 install ansible' returned a non-zero code: 100
Unable to find image 'ansible_image:latest' locally
docker: Error response from daemon: pull access denied for ansible_image, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.

This is the part of the Dockerfile causing the failure:

RUN apt-get update && \
  apt-get install -y gcc python-dev libkrb5-dev && \
  apt-get install python3-pip -y && \
  pip3 install --upgrade pip && \
  pip3 install --upgrade virtualenv && \
  pip3 install pywinrm[kerberos] && \
  apt install krb5-user -y && \ 
  pip3 install pywinrm && \
  pip3 install ansible

These are the commands I use to build the image and run the container:

docker build -t ansible_image .
docker run -dit --add-host="mydomain.local:127.0.0.1" --name ansible_image.site -p 8080:80 ansible_image

You can also see that in part of the error message it says that I need docker login which further confuses me as I have already used that command on this machine and my credentials have been authenticated.

What else could be causing this error?

CodePudding user response：

Your first command docker build is failing because it cannot findpython-dev package to install and therefore your image is not built leading to no local image. You need to fix the build first specifying the correct python-dev package.