github.com/OpenFlowLabs/storage@v1.12.13/storage.conf (about)

     1  # This file is is the configuration file for all tools
     2  # that use the containers/storage library.
     3  # See man 5 containers-storage.conf for more information
     4  # The "container storage" table contains all of the server options.
     5  [storage]
     6  
     7  # Default Storage Driver
     8  driver = ""
     9  
    10  # Temporary storage location
    11  runroot = "/var/run/containers/storage"
    12  
    13  # Primary Read/Write location of container storage
    14  graphroot = "/var/lib/containers/storage"
    15  
    16  [storage.options]
    17  # Storage options to be passed to underlying storage drivers
    18  
    19  # AdditionalImageStores is used to pass paths to additional Read/Only image stores
    20  # Must be comma separated list.
    21  additionalimagestores = [
    22  ]
    23  
    24  # Size is used to set a maximum size of the container image.  Only supported by
    25  # certain container storage drivers.
    26  size = ""
    27  
    28  # Path to an helper program to use for mounting the file system instead of mounting it
    29  # directly.
    30  #mount_program = "/usr/bin/fuse-overlayfs"
    31  
    32  # mountopt specifies comma separated list of extra mount options
    33  mountopt = "nodev"
    34  
    35  # Remap-UIDs/GIDs is the mapping from UIDs/GIDs as they should appear inside of
    36  # a container, to the UIDs/GIDs as they should appear outside of the container,
    37  # and the length of the range of UIDs/GIDs.  Additional mapped sets can be
    38  # listed and will be heeded by libraries, but there are limits to the number of
    39  # mappings which the kernel will allow when you later attempt to run a
    40  # container.
    41  #
    42  # remap-uids = 0:1668442479:65536
    43  # remap-gids = 0:1668442479:65536
    44  
    45  # Remap-User/Group is a user name which can be used to look up one or more UID/GID
    46  # ranges in the /etc/subuid or /etc/subgid file.  Mappings are set up starting
    47  # with an in-container ID of 0 and then a host-level ID taken from the lowest
    48  # range that matches the specified name, and using the length of that range.
    49  # Additional ranges are then assigned, using the ranges which specify the
    50  # lowest host-level IDs first, to the lowest not-yet-mapped in-container ID,
    51  # until all of the entries have been used for maps.
    52  #
    53  # remap-user = "storage"
    54  # remap-group = "storage"
    55  
    56  # If specified, use OSTree to deduplicate files with the overlay backend.
    57  ostree_repo = ""
    58  
    59  # Set to skip a PRIVATE bind mount on the storage home directory.  Only supported by
    60  # certain container storage drivers (overlay).
    61  skip_mount_home = "false"
    62  
    63  [storage.options.thinpool]
    64  # Storage Options for thinpool
    65  
    66  # autoextend_percent determines the amount by which pool needs to be
    67  # grown. This is specified in terms of % of pool size. So a value of 20 means
    68  # that when threshold is hit, pool will be grown by 20% of existing
    69  # pool size.
    70  # autoextend_percent = "20"
    71  
    72  # autoextend_threshold determines the pool extension threshold in terms
    73  # of percentage of pool size. For example, if threshold is 60, that means when
    74  # pool is 60% full, threshold has been hit.
    75  # autoextend_threshold = "80"
    76  
    77  # basesize specifies the size to use when creating the base device, which
    78  # limits the size of images and containers.
    79  # basesize = "10G"
    80  
    81  # blocksize specifies a custom blocksize to use for the thin pool.
    82  # blocksize="64k"
    83  
    84  # directlvm_device specifies a custom block storage device to use for the
    85  # thin pool. Required if you setup devicemapper.
    86  # directlvm_device = ""
    87  
    88  # directlvm_device_force wipes device even if device already has a filesystem.
    89  # directlvm_device_force = "True"
    90  
    91  # fs specifies the filesystem type to use for the base device.
    92  # fs="xfs"
    93  
    94  # log_level sets the log level of devicemapper.
    95  # 0: LogLevelSuppress 0 (Default)
    96  # 2: LogLevelFatal
    97  # 3: LogLevelErr
    98  # 4: LogLevelWarn
    99  # 5: LogLevelNotice
   100  # 6: LogLevelInfo
   101  # 7: LogLevelDebug
   102  # log_level = "7"
   103  
   104  # min_free_space specifies the min free space percent in a thin pool require for
   105  # new device creation to succeed. Valid values are from 0% - 99%.
   106  # Value 0% disables
   107  # min_free_space = "10%"
   108  
   109  # mkfsarg specifies extra mkfs arguments to be used when creating the base.
   110  # device.
   111  # mkfsarg = ""
   112  
   113  # use_deferred_removal marks devicemapper block device for deferred removal.
   114  # If the thinpool is in use when the driver attempts to remove it, the driver 
   115  # tells the kernel to remove it as soon as possible. Note this does not free
   116  # up the disk space, use deferred deletion to fully remove the thinpool.
   117  # use_deferred_removal = "True"
   118  
   119  # use_deferred_deletion marks thinpool device for deferred deletion.
   120  # If the device is busy when the driver attempts to delete it, the driver
   121  # will attempt to delete device every 30 seconds until successful.
   122  # If the program using the driver exits, the driver will continue attempting
   123  # to cleanup the next time the driver is used. Deferred deletion permanently
   124  # deletes the device and all data stored in device will be lost.
   125  # use_deferred_deletion = "True"
   126  
   127  # xfs_nospace_max_retries specifies the maximum number of retries XFS should
   128  # attempt to complete IO when ENOSPC (no space) error is returned by
   129  # underlying storage device.
   130  # xfs_nospace_max_retries = "0"