fixed pull notification for tagged images

[hobofan]

The image pull action now uses image_and_tag_arg instead of only the image_name.

Only comparing the id of the image with the image_name will result in no update of the resource when you are actually pulling a tagged image and therefore no notify actions will be raised.

[joshpasqualetto]

+1 to this fix, I am now using this fork/branch as the current one is non functional in any meaningful deployment scenario for me.

If you use a tag with the docker_image resource and have any notifies/subscribes -- nothing will work without this fix. For my use case having a tag and not downloading the world from my registry is important.

Without this fix the entire cookbook seems broken when using tags and will result in much frustration. Please merge.

[djdefi]

+1 need some of these fixes merged. We are about to scrap using this cookbook and switch to Ansible's docker module or something else that is being maintained.

[tduffield]

👍