Maciej "RooTer" Urbański rooterkyberian

## docker-cleanup-resources.md

      
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                bastman
                / docker-cleanup-resources.md
            
            
              Created
              March 31, 2016 05:55
            
              
                docker cleanup guide: containers, images, volumes, networks
              
          
    Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

  
## gist:9742059
App configuration in environment variables: for and against

For (some of these as per the 12 factor principles)

1) they are are easy to change between deploys without changing any code

2) unlike config files, there is little chance of them being checked
into the code repo accidentally

3) unlike custom config files, or other config mechanisms such as Java
	App configuration in environment variables: for and against

	For (some of these as per the 12 factor principles)

	1) they are are easy to change between deploys without changing any code

	2) unlike config files, there is little chance of them being checked
	into the code repo accidentally

	3) unlike custom config files, or other config mechanisms such as Java