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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
8driver = "overlay"
9
10# Temporary storage location
11runroot = "/var/run/containers/storage"
12
13# Primary Read/Write location of container storage
14graphroot = "/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.
21additionalimagestores = [
22]
23
24# Size is used to set a maximum size of the container image. Only supported by
25# certain container storage drivers.
26size = ""
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# OverrideKernelCheck tells the driver to ignore kernel checks based on kernel version
33override_kernel_check = "true"
34
35# mountopt specifies comma separated list of extra mount options
36mountopt = "nodev"
37
38# Remap-UIDs/GIDs is the mapping from UIDs/GIDs as they should appear inside of
39# a container, to UIDs/GIDs as they should appear outside of the container, and
40# the length of the range of UIDs/GIDs. Additional mapped sets can be listed
41# and will be heeded by libraries, but there are limits to the number of
42# mappings which the kernel will allow when you later attempt to run a
43# container.
44#
45# remap-uids = 0:1668442479:65536
46# remap-gids = 0:1668442479:65536
47
48# Remap-User/Group is a name which can be used to look up one or more UID/GID
49# ranges in the /etc/subuid or /etc/subgid file. Mappings are set up starting
50# with an in-container ID of 0 and the a host-level ID taken from the lowest
51# range that matches the specified name, and using the length of that range.
52# Additional ranges are then assigned, using the ranges which specify the
53# lowest host-level IDs first, to the lowest not-yet-mapped container-level ID,
54# until all of the entries have been used for maps.
55#
56# remap-user = "storage"
57# remap-group = "storage"
58
59[storage.options.thinpool]
60# Storage Options for thinpool
61
62# autoextend_percent determines the amount by which pool needs to be
63# grown. This is specified in terms of % of pool size. So a value of 20 means
64# that when threshold is hit, pool will be grown by 20% of existing
65# pool size.
66# autoextend_percent = "20"
67
68# autoextend_threshold determines the pool extension threshold in terms
69# of percentage of pool size. For example, if threshold is 60, that means when
70# pool is 60% full, threshold has been hit.
71# autoextend_threshold = "80"
72
73# basesize specifies the size to use when creating the base device, which
74# limits the size of images and containers.
75# basesize = "10G"
76
77# blocksize specifies a custom blocksize to use for the thin pool.
78# blocksize="64k"
79
80# directlvm_device specifies a custom block storage device to use for the
81# thin pool. Required if you setup devicemapper.
82# directlvm_device = ""
83
84# directlvm_device_force wipes device even if device already has a filesystem.
85# directlvm_device_force = "True"
86
87# fs specifies the filesystem type to use for the base device.
88# fs="xfs"
89
90# log_level sets the log level of devicemapper.
91# 0: LogLevelSuppress 0 (Default)
92# 2: LogLevelFatal
93# 3: LogLevelErr
94# 4: LogLevelWarn
95# 5: LogLevelNotice
96# 6: LogLevelInfo
97# 7: LogLevelDebug
98# log_level = "7"
99
100# min_free_space specifies the min free space percent in a thin pool require for
101# new device creation to succeed. Valid values are from 0% - 99%.
102# Value 0% disables
103# min_free_space = "10%"
104
105# mkfsarg specifies extra mkfs arguments to be used when creating the base.
106# device.
107# mkfsarg = ""
108
109# use_deferred_removal marks devicemapper block device for deferred removal.
110# If the thinpool is in use when the driver attempts to remove it, the driver
111# tells the kernel to remove it as soon as possible. Note this does not free
112# up the disk space, use deferred deletion to fully remove the thinpool.
113# use_deferred_removal = "True"
114
115# use_deferred_deletion marks thinpool device for deferred deletion.
116# If the device is busy when the driver attempts to delete it, the driver
117# will attempt to delete device every 30 seconds until successful.
118# If the program using the driver exits, the driver will continue attempting
119# to cleanup the next time the driver is used. Deferred deletion permanently
120# deletes the device and all data stored in device will be lost.
121# use_deferred_deletion = "True"
122
123# xfs_nospace_max_retries specifies the maximum number of retries XFS should
124# attempt to complete IO when ENOSPC (no space) error is returned by
125# underlying storage device.
126# xfs_nospace_max_retries = "0"
127
128# If specified, use OSTree to deduplicate files with the overlay backend
129ostree_repo = ""
130
131# Set to skip a PRIVATE bind mount on the storage home directory. Only supported by
132# certain container storage drivers
133skip_mount_home = "false"