The evils of package managers when creating Docker images

[rwallinterset]

Lighting talk suggestion or maybe something more with additional content.

Look at how package managers can bloat image sizes.

Use tricks like cleaning up cached package manager files.
extract out packed files rather then installing them. rpm2cpio for example
use strace to find all files opened by an app and build a image based on the resulting info.

[hairyhenderson]

cool! sounds like a good idea @rwallinterset.

You could also work in multi-stage builds, as those can help reduce the unnecessary files in an image.

We'll see when we can work this in to the schedule - would you be willing to deliver this? Or were you preferring for someone else to do this talk? Either way is fine 😉

[rwallinterset]

I could give the talk but in no way am I an expert.

@hairyhenderson I have never used the mutli-stage builds so this is new to me. I'll take a look.

[hairyhenderson]

Hey @rwallinterset - huge apologies for not following up with you on this. It's short-notice, but would you be willing to deliver this at the September meetup (this coming Wednesday)?

[rwallinterset]

@hairyhenderson Possibly, how long of a time slot are you looking for me to fill? Is it a lighting talk or a 30 minute thing?

[hairyhenderson]

@rwallinterset Lightning talk would be ideal

[rwallinterset]

Perfect. Yeah I can do that.

[hairyhenderson]

Great! Thanks @rwallinterset :)