Docker container/image updates

I’ve been using ansible to update docker images, but I recently ran into some issues where the application was still reporting that an upgrade was available after updating the (latest) image.

I’ve looked at watchtower a couple of times, but it doesn’t provide what I’m looking for. I’m not interested in automatic updates. I’d like to see what needs to be updated, then decide what/when to update.

I ran across this little gem this morning:

I played with a bit this morning and found that it works quite well.

Be warned, though, that the script used is self-updating, so be aware of that and the security ramifications involved.

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