зеркало из https://github.com/microsoft/docker.git
103 строки
2.1 KiB
Bash
Executable File
103 строки
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
set -e
|
|
|
|
# bits of this were adapted from lxc-checkconfig
|
|
# see also https://github.com/lxc/lxc/blob/lxc-1.0.2/src/lxc/lxc-checkconfig.in
|
|
|
|
: ${CONFIG:=/proc/config.gz}
|
|
: ${GREP:=zgrep}
|
|
|
|
if [ ! -e "$CONFIG" ]; then
|
|
echo >&2 "warning: $CONFIG does not exist, searching other paths for kernel config..."
|
|
if [ -e "/boot/config-$(uname -r)" ]; then
|
|
CONFIG="/boot/config-$(uname -r)"
|
|
elif [ -e '/usr/src/linux/.config' ]; then
|
|
CONFIG='/usr/src/linux/.config'
|
|
else
|
|
echo >&2 "error: cannot find kernel config"
|
|
echo >&2 " try running this script again, specifying the kernel config:"
|
|
echo >&2 " CONFIG=/path/to/kernel/.config $0"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
is_set() {
|
|
$GREP "CONFIG_$1=[y|m]" $CONFIG > /dev/null
|
|
}
|
|
|
|
color() {
|
|
color=
|
|
prefix=
|
|
if [ "$1" = 'bold' ]; then
|
|
prefix='1;'
|
|
shift
|
|
fi
|
|
case "$1" in
|
|
green) color='32' ;;
|
|
red) color='31' ;;
|
|
gray) color='30' ;;
|
|
reset) color='' ;;
|
|
esac
|
|
echo -en '\033['"$prefix$color"m
|
|
}
|
|
|
|
check_flag() {
|
|
if is_set "$1"; then
|
|
color green
|
|
echo -n enabled
|
|
else
|
|
color bold red
|
|
echo -n missing
|
|
fi
|
|
color reset
|
|
}
|
|
|
|
check_flags() {
|
|
for flag in "$@"; do
|
|
echo "- CONFIG_$flag: $(check_flag "$flag")"
|
|
done
|
|
}
|
|
|
|
echo
|
|
|
|
# TODO check that the cgroupfs hierarchy is properly mounted
|
|
|
|
echo 'Generally Necessary:'
|
|
flags=(
|
|
NAMESPACES {NET,PID,IPC,UTS}_NS
|
|
DEVPTS_MULTIPLE_INSTANCES
|
|
CGROUPS CGROUP_DEVICE
|
|
MACVLAN VETH BRIDGE
|
|
IP_NF_TARGET_MASQUERADE NETFILTER_XT_MATCH_{ADDRTYPE,CONNTRACK}
|
|
NF_NAT NF_NAT_NEEDED
|
|
)
|
|
check_flags "${flags[@]}"
|
|
echo
|
|
|
|
echo 'Optional Features:'
|
|
flags=(
|
|
MEMCG_SWAP
|
|
RESOURCE_COUNTERS
|
|
)
|
|
check_flags "${flags[@]}"
|
|
|
|
echo '- Storage Drivers:'
|
|
{
|
|
echo '- "aufs":'
|
|
check_flags AUFS_FS | sed 's/^/ /'
|
|
if ! is_set AUFS_FS && grep -q aufs /proc/filesystems; then
|
|
echo " $(color bold gray)(note that some kernels include AUFS patches but not the AUFS_FS flag)$(color reset)"
|
|
fi
|
|
|
|
echo '- "btrfs":'
|
|
check_flags BTRFS_FS | sed 's/^/ /'
|
|
|
|
echo '- "devicemapper":'
|
|
check_flags BLK_DEV_DM DM_THIN_PROVISIONING EXT4_FS | sed 's/^/ /'
|
|
} | sed 's/^/ /'
|
|
echo
|
|
|
|
#echo 'Potential Future Features:'
|
|
#check_flags USER_NS
|
|
#echo
|