Docker Image size

[JWMutant]

Im starting to run low on space in my docker image, and while Im sure it has been covered before I cant seem to find it.

How would I go about increasing the size of my docker image? 

 

Thanks in advance.

[Squid]

Settings - docker.  Stop the service and then increase the size and restart the service.  Just a ton of containers or is there a problem with it constantly growing?

[JWMutant]

Just a lot of containers. And I probably didn’t make the initial size big enough As I think it’s only 20 gig

[maple]

Here's the specific post that provides the answer you need, and many others. Just did this yesterday myself and worked well.

 

[trurl]

42 minutes ago, maple said:

Just did this yesterday myself

Since this is your first post, you should note that increasing docker.img size is usually not the correct solution to filling docker.img. Some people may need it to be somewhat larger than 20G, but most don't, and if your docker.img usage is growing that means you have apps writing into docker.img instead of to mapped storage. Making docker.img larger won't fix that, it will only make it take longer to fill.

[maple]

On 11/8/2021 at 3:25 PM, trurl said:

Since this is your first post, you should note that increasing docker.img size is usually not the correct solution to filling docker.img. Some people may need it to be somewhat larger than 20G, but most don't, and if your docker.img usage is growing that means you have apps writing into docker.img instead of to mapped storage. Making docker.img larger won't fix that, it will only make it take longer to fill.

You're very right. I didn't mention it since the OP said in the post above mine that they simply have "a lot of containers" and not an issue with growth. But for anyone else ending up in this thread, it's worth mentioning that understanding docker.img growth is also touched on in the FAQ.

[irishjd]

To do a 180, how would I shrink the size of the docker image file?

[trurl]

30 minutes ago, irishjd said:

To do a 180, how would I shrink the size of the docker image file?

Delete and recreate

 

https://wiki.unraid.net/Manual/Docker_Management#Re-Create_the_Docker_image_file

 

https://wiki.unraid.net/Manual/Docker_Management#Re-Installing_Docker_Applications

[irishjd]

All, the answer to my question is found in thread #48983

[trurl]

1 hour ago, irishjd said:

All, the answer to my question is found in thread #48983

And how would someone find that thread?

[trurl]

1 minute ago, trurl said:

And how would someone find that thread?

NVM, I found it

https://forums.unraid.net/topic/48983-easier-way-to-rebuild-docker-image-to-make-it-smaller/

 

Seems to be saying the same thing as the wiki links I gave above