Skip to content

Overwritten user home directory entries

Overwritten user homedirectory directory entries

To reduce I/O to the storage backend, you can defined entries in the desktop.directorytomemoryemptydir option, and overwrite users sub directories.

desktop.directorytomemoryemptydir: [ '.cache', '.local', '.config' ]
desktop.directorytomemory: { 'emptyDir': { 'medium': 'Memory', 'sizeLimit': '8Gi' } }

The default desktop.directorytomemory is a dictionary set to { 'emptyDir': { 'medium': 'Memory', 'sizeLimit': '8Gi' } }

The desktop.directorytomemory dictionnary is the same for all desktop.directorytomemoryemptydir entries.

A kubectl describe pod command line shows the volume for each desktop.directorytomemoryemptydir in this case [ '.cache', '.local', '.config' ]

The mounted volumes show that each entries /home/fry/.cache, /home/fry/.config, /home/fry/.local are overwritten.

Mounts:
  [...]
  /home/fry/.cache from cache (rw)
  /home/fry/.config from config (rw)
  /home/fry/.local from local (rw)

The volumes are configured as an emptyDir (a temporary directory that shares a pod's lifetime) of Memory with a SizeLimit to 8Gi.

Volumes:
  auth-localaccount-fry:
    Type:        Secret (a volume populated by a Secret)
    SecretName:  auth-localaccount-fry
    Optional:    false
 [...]
  cache:
    Type:       EmptyDir (a temporary directory that shares a pod's lifetime)
    Medium:     Memory
    SizeLimit:  8Gi
  local:
    Type:       EmptyDir (a temporary directory that shares a pod's lifetime)
    Medium:     Memory
    SizeLimit:  8Gi
  config:
    Type:       EmptyDir (a temporary directory that shares a pod's lifetime)
    Medium:     Memory
    SizeLimit:  8Gi
[...]

update sound contianer for .config usage

The s-sound container need to read the $HOME/.config/pulse/cookie file. If we decide to put the .config as emptyDir volume, we need to add this volume to the sound container description.

  • update your desktop.pod dictionary to add the config volume into the volume list 'volumes': [ 'extrausers', 'tmp', 'config', 'log' ]
'sound': { 
    'volumes': [ 'extrausers', 'tmp', 'config', 'log' ],
    'image': 'ghcr.io/abcdesktopio/oc.pulseaudio:4.4',
    'imagePullPolicy': 'Always',
    'enable': True,
    'tcpport': 29788,
    'acl':  { 'permit': [ 'all' ] },
  },

After a login, you can check that the s-sound container mounts .config as $HOME/.config :

NAMESPACE=abcdesktop
kubectl  describe pods fry-c33ed  -n $NAMESPACE

You should read for the s-sound container the Mounts

    Mounts:
      /home/fry/.config from config (rw)
      /tmp from tmp (rw)
      /var/lib/extrausers from extrausers (rw)
      /var/log/desktop from log (rw)