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This makes it a bit easier to read.
This commit is contained in:
W. Trevor King 2015-07-25 21:16:04 -07:00
parent caf4a38b9a
commit 871a851ffc
1 changed files with 51 additions and 51 deletions
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bocker
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@ -2,73 +2,73 @@
set -o errexit -o nounset -o pipefail; shopt -s nullglob set -o errexit -o nounset -o pipefail; shopt -s nullglob
btrfs_path='/var/bocker'; btrfs_path='/var/bocker';
function bocker_check() { function bocker_check() {
btrfs subvolume list "$btrfs_path" | grep -qw "$1" && echo 0 || echo 1 btrfs subvolume list "$btrfs_path" | grep -qw "$1" && echo 0 || echo 1
} }
function bocker_init() { #HELP Create an image:\nBOCKER init <image_directory> function bocker_init() { #HELP Create an image:\nBOCKER init <image_directory>
uuid="img_$(shuf -i 42002-42254 -n 1)" uuid="img_$(shuf -i 42002-42254 -n 1)"
if [[ -d "$1" ]]; then if [[ -d "$1" ]]; then
[[ "$(bocker_check "$uuid")" == 0 ]] && bocker_run "$@" [[ "$(bocker_check "$uuid")" == 0 ]] && bocker_run "$@"
btrfs subvolume create "$btrfs_path/$uuid" > /dev/null btrfs subvolume create "$btrfs_path/$uuid" > /dev/null
cp -rf --reflink=auto "$1"/* "$btrfs_path/$uuid" > /dev/null cp -rf --reflink=auto "$1"/* "$btrfs_path/$uuid" > /dev/null
echo "Created: $uuid" echo "Created: $uuid"
else else
echo "No directory named '$1' exists" echo "No directory named '$1' exists"
fi fi
} }
function bocker_rm() { #HELP Delete an image or container:\nBOCKER rm <image_id or container_id> function bocker_rm() { #HELP Delete an image or container:\nBOCKER rm <image_id or container_id>
[[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1 [[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1
btrfs subvolume delete "$btrfs_path/$1" > /dev/null btrfs subvolume delete "$btrfs_path/$1" > /dev/null
echo "Removed: $1" echo "Removed: $1"
} }
function bocker_images() { #HELP List images:\nBOCKER images function bocker_images() { #HELP List images:\nBOCKER images
echo -e "IMAGE_ID" echo -e "IMAGE_ID"
for img in "$btrfs_path"/img_*; do for img in "$btrfs_path"/img_*; do
basename "$img" basename "$img"
done done
} }
function bocker_ps() { #HELP List containers:\nBOCKER ps function bocker_ps() { #HELP List containers:\nBOCKER ps
echo -e "CONTAINER_ID\t\tCOMMAND" echo -e "CONTAINER_ID\t\tCOMMAND"
for ps in "$btrfs_path"/ps_*; do for ps in "$btrfs_path"/ps_*; do
ps=$(basename "$ps") ps=$(basename "$ps")
echo -e "$ps\t\t$(cat "$btrfs_path/$ps/$ps.cmd")" echo -e "$ps\t\t$(cat "$btrfs_path/$ps/$ps.cmd")"
done done
} }
function bocker_run() { #HELP Create a container:\nBOCKER run <image_id> <command function bocker_run() { #HELP Create a container:\nBOCKER run <image_id> <command
uuid="ps_$(shuf -i 42002-42254 -n 1)" uuid="ps_$(shuf -i 42002-42254 -n 1)"
[[ "$(bocker_check "$1")" == 1 ]] && echo "No image named '$1' exists" && exit 1 [[ "$(bocker_check "$1")" == 1 ]] && echo "No image named '$1' exists" && exit 1
[[ "$(bocker_check "$uuid")" == 0 ]] && echo "UUID conflict, retrying..." && bocker_run "$@" && return [[ "$(bocker_check "$uuid")" == 0 ]] && echo "UUID conflict, retrying..." && bocker_run "$@" && return
cmd=${@:2} && ip="$(echo "${uuid: -3}" | sed 's/0//g')" && mac="${uuid: -3:1}:${uuid: -2}" cmd=${@:2} && ip="$(echo "${uuid: -3}" | sed 's/0//g')" && mac="${uuid: -3:1}:${uuid: -2}"
ip link add dev veth0_"$uuid" type veth peer name veth1_"$uuid" ip link add dev veth0_"$uuid" type veth peer name veth1_"$uuid"
ip link set dev veth0_"$uuid" up ip link set dev veth0_"$uuid" up
ip link set veth0_"$uuid" master bridge0 ip link set veth0_"$uuid" master bridge0
ip netns add netns_"$uuid" ip netns add netns_"$uuid"
ip link set veth1_"$uuid" netns netns_"$uuid" ip link set veth1_"$uuid" netns netns_"$uuid"
ip netns exec netns_"$uuid" ip link set dev lo up ip netns exec netns_"$uuid" ip link set dev lo up
ip netns exec netns_"$uuid" ip link set veth1_"$uuid" address 02:42:ac:11:00"$mac" ip netns exec netns_"$uuid" ip link set veth1_"$uuid" address 02:42:ac:11:00"$mac"
ip netns exec netns_"$uuid" ip addr add 10.0.0."$ip"/24 dev veth1_"$uuid" ip netns exec netns_"$uuid" ip addr add 10.0.0."$ip"/24 dev veth1_"$uuid"
ip netns exec netns_"$uuid" ip link set dev veth1_"$uuid" up ip netns exec netns_"$uuid" ip link set dev veth1_"$uuid" up
ip netns exec netns_"$uuid" ip route add default via 10.0.0.1 ip netns exec netns_"$uuid" ip route add default via 10.0.0.1
btrfs subvolume snapshot "$btrfs_path/$1" "$btrfs_path/$uuid" > /dev/null btrfs subvolume snapshot "$btrfs_path/$1" "$btrfs_path/$uuid" > /dev/null
echo 'nameserver 8.8.8.8' > "$btrfs_path/$uuid"/etc/resolv.conf echo 'nameserver 8.8.8.8' > "$btrfs_path/$uuid"/etc/resolv.conf
echo "$cmd" > "$btrfs_path/$uuid/$uuid.cmd" echo "$cmd" > "$btrfs_path/$uuid/$uuid.cmd"
ip netns exec netns_"$uuid" "unshare" -fp --mount-proc "chroot" \ ip netns exec netns_"$uuid" "unshare" -fp --mount-proc "chroot" \
"$btrfs_path/$uuid" /bin/sh -c "/bin/mount -t proc proc /proc && $cmd" \ "$btrfs_path/$uuid" /bin/sh -c "/bin/mount -t proc proc /proc && $cmd" \
2>&1 | tee "$btrfs_path/$uuid/$uuid.log" || true 2>&1 | tee "$btrfs_path/$uuid/$uuid.log" || true
ip link del dev veth0_"$uuid" ip link del dev veth0_"$uuid"
ip netns del netns_"$uuid" ip netns del netns_"$uuid"
} }
function bocker_logs() { #HELP View logs from a container:\nBOCKER logs <container_id> function bocker_logs() { #HELP View logs from a container:\nBOCKER logs <container_id>
[[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1 [[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1
cat "$btrfs_path/$1/$1.log" cat "$btrfs_path/$1/$1.log"
} }
function bocker_commit() { #HELP Commit a container to an image:\nBOCKER commit <container_id> <image_id> function bocker_commit() { #HELP Commit a container to an image:\nBOCKER commit <container_id> <image_id>
[[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1 [[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1
[[ "$(bocker_check "$2")" == 1 ]] && echo "No image named '$1' exists" && exit 1 [[ "$(bocker_check "$2")" == 1 ]] && echo "No image named '$1' exists" && exit 1
bocker_rm "$2" && btrfs subvolume snapshot "$btrfs_path/$1" "$btrfs_path/$2" > /dev/null bocker_rm "$2" && btrfs subvolume snapshot "$btrfs_path/$1" "$btrfs_path/$2" > /dev/null
echo "Created: $2" echo "Created: $2"
} }
function bocker_help() { #HELP Display this message:\nBOCKER help function bocker_help() { #HELP Display this message:\nBOCKER help
sed -n "s/^.*#HELP\\s//p;" < "$1" | sed "s/\\\\n/\n\t/g;s/$/\n/;s!BOCKER!${1/!/\\!}!g" sed -n "s/^.*#HELP\\s//p;" < "$1" | sed "s/\\\\n/\n\t/g;s/$/\n/;s!BOCKER!${1/!/\\!}!g"
} }
[[ -z "${1-}" ]] && bocker_help "$0" [[ -z "${1-}" ]] && bocker_help "$0"
case $1 in case $1 in