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# Specify storage driver one wants to use with container runtimes. # Default is devicemapper. # Other possible options are overlay, overlay2 and "". Empty string means do # not do any storage setup. STORAGE_DRIVER=devicemapper # Set extra options that will be appended to the generated STORAGE_OPTIONS # variable. These options will be passed to the container runtime daemon # as-is and should be valid container runtime storage options. # EXTRA_STORAGE_OPTIONS="--storage-opt dm.fs=ext4" # A quoted, space-separated list of devices to be used. This currently # expects the devices to be unpartitioned drives. If "VG" is not specified, # then use of the root disk's extra space is implied. # # DEVS=/dev/vdb # Specify the thinpool name for the lvm thinpool, when using the # devicemapper STORAGE_DRIVER. This is the logical volume name # for the newly created thin pool volume. # # CONTAINER_THINPOOL=container-thinpool # The volume group to use for container runtime storage. Defaults to the # volume group where the root filesystem resides. If VG is specified and the # volume group does not exist, it will be created (which requires that "DEVS" # be nonempty, since we don't currently support putting a second partition on # the root disk). # # VG= # The size to which the root filesystem should be grown. # Value should be acceptable to -L option of lvextend. # # ROOT_SIZE can take values acceptable to "lvcreate -L" as well as some # values acceptable to "lvcreate -l". If user intends to pass values # acceptable to "lvcreate -l", then only those values which contains "%" # in syntax are acceptable. If value does not contain "%" it is assumed # value is suitable for "lvcreate -L". # # ROOT_SIZE=8G # The desired size for the container runtime data LV. Defaults to using 40% # of FREE space. # # DATA_SIZE can take values acceptable to "lvcreate -L" as well as some # values acceptable to "lvcreate -l". If user intends to pass values # acceptable to "lvcreate -l", then only those values which contains "%" # in syntax are acceptable. If value does not contain "%" it is assumed # value is suitable for "lvcreate -L". # DATA_SIZE=40%FREE # MIN_DATA_SIZE specifies the minimum size of data volume otherwise pool # creation fails. # # Value should be a number followed by a optional suffix. "bBsSkKmMgGtTpPeE" # are valid suffixes. If no suffix is specified then value will be considered # as mebibyte unit. # # Both upper and lower case suffix represent same unit of size. Use suffix B # for Bytes, S for sectors as 512 bytes, K for kibibytes (1024 bytes), M for # mebibytes (1024 kibibytes), G for gibibytes, T for tebibytes, P for # pebibytes and E for exbibytes. # MIN_DATA_SIZE=2G # The desired size for the thin pool metadata volume. Defaults to using .1% # of FREE space in Volume Group. # # Values passed should be suitable to be used by --poolmetadatasize option # of lvcreate. It should be a number followed by a optional suffix. # "bBsSkKmMgGtTpPeE" are valid suffixes. If no suffix is specified then value # will be considered as mebibyte unit. # # Both upper and lower case suffix represent same unit of size. Use suffix B # for Bytes, S for sectors as 512 bytes, K for kibibytes (1024 bytes), M for # mebibytes (1024 kibibytes), G for gibibytes, T for tebibytes, P for # pebibytes and E for exbibytes. #POOL_META_SIZE=16M # Controls the chunk size/block size of thin pool. Value of CHUNK_SIZE # be suitable to be passed to --chunk-size option of lvconvert. # CHUNK_SIZE=512K # Enable resizing partition table backing root volume group. By default it # is disabled until and unless GROWPART=true is specified. # GROWPART=false # Enable/disable automatic pool extension using lvm AUTO_EXTEND_POOL=yes # Auto pool extension threshold (in % of pool size) POOL_AUTOEXTEND_THRESHOLD=60 # Extend the pool by specified percentage when threshold is hit. POOL_AUTOEXTEND_PERCENT=20 # Device wait timeout in seconds. This is generic timeout which can be used by # container storage setup service to wait on various kind of block devices. # Setting a value of 0 can disable this wait. DEVICE_WAIT_TIMEOUT=60 # Wipe any signatures (partition, filesystem, lvm etc) found on disk. # This could mean wiping the signature explicitly or using force options # of various commands to wipe/overwrite signatures. By default signatures # are not wiped and user needs to wipe these. One can change default behavior # by setting WIPE_SIGNATURES=true. Be careful before using this option # as this means if there was any leftover data on disk, it will be lost. WIPE_SIGNATURES=false # By default no new volume and filesystem will be setup for container runtime # root dir. For example the docker engine creates /var/lib/docker/ on top of # underlying filesystem for storing images and containers. # # Logical volume name that will be mounted on CONTAINER_ROOT_LV_MOUNT_PATH. # Setting CONTAINER_ROOT_LV_MOUNT_PATH requires CONTAINER_ROOT_LV_NAME be set # CONTAINER_ROOT_LV_NAME="container-root-lv" # Specify the desired size for container root lv volume. It defaults to 40% of # all free space. # # CONTAINER_ROOT_LV_SIZE can take values acceptable to "lvcreate -L" as well # as some values acceptable to "lvcreate -l". If user intends to pass # values acceptable to "lvcreate -l", then only those values which # contains "%" in syntax are acceptable. If value does not contain "%" it # is assumed value is suitable for "lvcreate -L". # # Note: If both STORAGE_DRIVER=devicemapper and CONTAINER_ROOT_LV_NAME is # set, container-storage-setup would set up the thin pool for devicemapper # first, followed by container runtime root volume. e.g if free space in the # volume group is 10G, devicemapper thin pool size would be 4G (40% of 10G) # and containe runtime root volume would be 2.4G (40% of 6G). CONTAINER_ROOT_LV_SIZE=40%FREE # Creates a logical volume named $CONTAINER_ROOT_LV_NAME and mount it on # $CONTAINER_ROOT_LV_MOUNT_PATH. By default no new logical volume will # be created. e.g. Specifying CONTAINER_ROOT_LV_MOUNT_PATH=/var/lib/containers/container-runtime # will carve out a logical volume, create a filesystem on it and mount # it on /var/lib/containers/container-runtime. # CONTAINER_ROOT_LV_MOUNT_PATH="/var/lib/containers/container-runtime"