dockcheck

Scripts and functions to check for docker updates for images, without the need of pulling. With the help of regctl. This is just a concept for fun and inspiration, use with care.

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Dependencies:

Running docker (duh) and compose, either standalone or plugin.
regctl by regclient

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dockcheck.sh

A script to check all currently running containers if they've got updates without pulling images, list them and give the option to update. Example:

$ ./dockcheck.sh
. . .
Containers with updates available:
whoogle-search

Containers on latest version:
glances
homer

Do you want to update? y/[n]
y

Then it proceedes to run pull and up -d on every container with updates.

Example-video:

dc_function.sh

Brief function to check a single contianer (by name) if there's any available updates or not without the need of pulling. Preferably placed in .bashrc or similar. Example:

$ dockcheck nginx
Updates available.