Proposal: docker_images load image without specifying a name

[DavidZisky]

Proposal: docker_images load image without specifying a name

Author: David Zisky <@DavidZisky>

Date: 2018/07/18

• Status: New
• Proposal type: improvement
• Targeted Release: 2.7?
• Associated PR: -
• Estimated time to implement: few days?

Motivation

It would drastically improve the usability of this module in regards to loading images. When loading docker images from file manually You don't need to specify the name of the image (because docker gets it from the file itself). That should be the same for ansible as currently, it don't allow to build any automation if You need to download some images from other hosts or (in my particular case) you have one tar file in which there are few different images saved. In this case, docker_images will not be able to load images from that file (because You can only specify one name)

Problems

• Loading few images saved in one tar file
• Loading images for which You don't know the name upfront (for example if You want to get latest version not knowing exactly what the version is or simply dev team is saving images to file and their name are hashed or so

Solution proposal

• "Name" parameter should not be required if load_path is specified (and name itself should be determined by ansible/docker)
• Or "Name" can persist required but should have some value like "as original" or "as_load"

Dependencies (optional)

• not sure

Testing (optional)

Simply try to load docker image from tar file without specifying the name and loading few docker images from one tar file

Documentation (optional)

Just small addition/explanation how was it implemented in regards to "Name" parameter

[agaffney]

This should probably just be a normal feature request ticket in the ansible/ansible project. Proposals are for more far reaching changes to Ansible.

[DavidZisky]

Ahh, yes make sense, sorry will open FR there.