mirror of
https://git.proxmox.com/git/mirror_lxc
synced 2025-08-05 22:51:42 +00:00
Added lxc-debian command
From: Daniel Lezcano <dlezcano@fr.ibm.com> Added the script lxc-debian to the package. This command allows to debootstrap a debian minimal and configure a container to run it. Several debian can be installed by invoking the command with a different container name. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
This commit is contained in:
dlezcano
parent
76a6d713af
commit
6454831676
@ -68,6 +68,7 @@ AC_CONFIG_FILES([
|
||||
src/lxc/lxc-ps
|
||||
src/lxc/lxc-ls
|
||||
src/lxc/lxc-netstat
|
||||
src/lxc/lxc-debian
|
||||
src/lxc/lxc-checkconfig
|
||||
etc/Makefile
|
||||
etc/lxc-macvlan.conf
|
||||
|
||||
@ -46,6 +46,7 @@ bin_SCRIPTS = \
|
||||
lxc-ps \
|
||||
lxc-netstat \
|
||||
lxc-ls \
|
||||
lxc-debian \
|
||||
lxc-checkconfig
|
||||
|
||||
bin_PROGRAMS = \
|
||||
|
||||
283
src/lxc/lxc-debian.in
Executable file
283
src/lxc/lxc-debian.in
Executable file
@ -0,0 +1,283 @@
|
||||
#!/bin/bash
|
||||
# set -ex
|
||||
|
||||
NAME="debian"
|
||||
CONFFILE="lxc.conf"
|
||||
MNTFILE="mount.conf"
|
||||
UTSNAME=
|
||||
IPV4="172.20.0.21"
|
||||
GATEWAY="172.20.0.1"
|
||||
INTERFACES="/etc/network/interfaces"
|
||||
INITTAB="/etc/inittab"
|
||||
HOSTNAME="/etc/hostname"
|
||||
FSTAB="/etc/fstab"
|
||||
CACHE="/var/cache/lxc/debian"
|
||||
|
||||
create() {
|
||||
|
||||
# choose a container name, default is 'debian'
|
||||
echo -n "What is the name for the container ? [$NAME] "
|
||||
read _NAME_
|
||||
|
||||
if [ ! -z "$_NAME_" ]; then
|
||||
NAME=$_NAME_
|
||||
fi
|
||||
|
||||
# choose a hostname, default is the container name
|
||||
echo -n "What hostname do you wish for this container ? [$NAME] "
|
||||
read _UTSNAME_
|
||||
|
||||
if [ ! -z "$_UTSNAME_" ]; then
|
||||
UTSNAME=$_UTSNAME_
|
||||
else
|
||||
UTSNAME=$NAME
|
||||
fi
|
||||
|
||||
# choose an ipv4 address, better to choose the same network than
|
||||
# your host
|
||||
echo -n "What IP address do you wish for this container ? [$IPV4] "
|
||||
read _IPV4_
|
||||
|
||||
if [ ! -z "$_IPV4_" ]; then
|
||||
IPV4=$_IPV4_
|
||||
fi
|
||||
|
||||
# choose the gateway ip address
|
||||
echo -n "What is the gateway IP address ? [$GATEWAY] "
|
||||
read _GATEWAY_
|
||||
|
||||
if [ ! -z "$_GATEWAY_" ]; then
|
||||
GATEWAY=$_GATEWAY_
|
||||
fi
|
||||
|
||||
# the rootfs name will be build with the container name
|
||||
ROOTFS="./rootfs.$NAME"
|
||||
|
||||
# check if the rootfs does already exist
|
||||
if [ ! -e "$ROOTFS" ]; then
|
||||
(
|
||||
flock -n -x 200
|
||||
|
||||
RES=$?
|
||||
if [ "$RES" != "0" ]; then
|
||||
echo "Cache repository is busy."
|
||||
break
|
||||
fi
|
||||
|
||||
echo "Choose your architecture"
|
||||
select ARCH in amd64 i386; do
|
||||
echo "Architecture $ARCH selected"
|
||||
break;
|
||||
done
|
||||
|
||||
# check the mini debian was not already downloaded
|
||||
echo -n "Checking cache download ..."
|
||||
if [ ! -e "$CACHE/rootfs-$ARCH" ]; then
|
||||
|
||||
echo "not cached"
|
||||
|
||||
mkdir -p "$CACHE/rootfs-$ARCH"
|
||||
|
||||
# download a mini debian into a cache
|
||||
echo "Downloading debian minimal ..."
|
||||
debootstrap --verbose --variant=minbase --arch=$ARCH \
|
||||
--include apache,netbase,net-tools,iproute,openssh-server \
|
||||
etch $CACHE/rootfs-$ARCH http://ftp.debian.org/debian
|
||||
|
||||
RESULT=$?
|
||||
if [ "$RESULT" != "0" ]; then
|
||||
echo "Failed to download the rootfs, aborting."
|
||||
exit 1
|
||||
fi
|
||||
echo "Download complete."
|
||||
else
|
||||
echo "Found."
|
||||
fi
|
||||
|
||||
# make a local copy of the minidebian
|
||||
echo -n "Copying rootfs ..."
|
||||
cp -a $CACHE/rootfs-$ARCH $ROOTFS && echo "Done." || exit
|
||||
) 200>/var/lock/subsys/lxc
|
||||
fi
|
||||
|
||||
|
||||
########################################
|
||||
# lxc configuration files
|
||||
########################################
|
||||
|
||||
# lxc mount point
|
||||
|
||||
cat <<EOF > $MNTFILE
|
||||
/dev $(pwd)/$ROOTFS/dev none bind 0 0
|
||||
/dev/pts $(pwd)/$ROOTFS/dev/pts none bind 0 0
|
||||
/etc/resolv.conf $(pwd)/$ROOTFS/etc/resolv.conf none ro,bind 0 0
|
||||
EOF
|
||||
|
||||
# lxc configuration
|
||||
|
||||
cat <<EOF > $CONFFILE
|
||||
lxc.utsname = $UTSNAME
|
||||
lxc.network.type = veth
|
||||
lxc.network.flags = up
|
||||
lxc.network.link = br0
|
||||
lxc.network.name = eth0
|
||||
lxc.mount = $MNTFILE
|
||||
lxc.rootfs = $ROOTFS
|
||||
EOF
|
||||
|
||||
|
||||
########################################
|
||||
# rootfs configuration files tweak
|
||||
########################################
|
||||
|
||||
# inittab
|
||||
|
||||
cat <<EOF > $ROOTFS/$INITTAB
|
||||
id:3:initdefault:
|
||||
si::sysinit:/etc/init.d/rcS
|
||||
l0:0:wait:/etc/init.d/rc 0
|
||||
l1:1:wait:/etc/init.d/rc 1
|
||||
l2:2:wait:/etc/init.d/rc 2
|
||||
l3:3:wait:/etc/init.d/rc 3
|
||||
l4:4:wait:/etc/init.d/rc 4
|
||||
l5:5:wait:/etc/init.d/rc 5
|
||||
l6:6:wait:/etc/init.d/rc 6
|
||||
# Normally not reached, but fallthrough in case of emergency.
|
||||
z6:6:respawn:/sbin/sulogin
|
||||
1:2345:respawn:/sbin/getty 38400 console
|
||||
EOF
|
||||
|
||||
# hostname
|
||||
cat <<EOF > $ROOTFS/$HOSTNAME
|
||||
$UTSNAME
|
||||
EOF
|
||||
|
||||
# fstab
|
||||
|
||||
cat <<EOF > $ROOTFS/$FSTAB
|
||||
tmpfs /dev/shm tmpfs defaults 0 0
|
||||
EOF
|
||||
|
||||
# network
|
||||
|
||||
cat <<EOF > $ROOTFS/$INTERFACES
|
||||
auto eth0 lo
|
||||
iface eth0 inet static
|
||||
address $IPV4
|
||||
netmask 255.255.255.0
|
||||
broadcast 0.0.0.0
|
||||
up route add default gw $GATEWAY
|
||||
iface lo inet loopback
|
||||
EOF
|
||||
|
||||
# create the container object
|
||||
|
||||
lxc-create -n $NAME -f $CONFFILE
|
||||
|
||||
# remove the configuration files
|
||||
|
||||
rm -f $CONFFILE
|
||||
rm -f $MNTFILE
|
||||
|
||||
echo "Done."
|
||||
echo -e "\nYou can run your container with the 'lxc-start -n $NAME'\n"
|
||||
}
|
||||
|
||||
destroy() {
|
||||
|
||||
echo -n "What is the name for the container ? [$NAME] "
|
||||
read _NAME_
|
||||
|
||||
if [ ! -z "$_NAME_" ]; then
|
||||
NAME=$_NAME_
|
||||
fi
|
||||
|
||||
lxc-destroy -n $NAME
|
||||
RETVAL=$?
|
||||
if [ ! $RETVAL -eq 0 ]; then
|
||||
echo "Failed to destroyed '$NAME'"
|
||||
return $RETVAL;
|
||||
fi
|
||||
|
||||
ROOTFS="./rootfs.$NAME"
|
||||
|
||||
echo -n "Shall I remove the rootfs [y/n] ? "
|
||||
read
|
||||
if [ "$REPLY" = "y" ]; then
|
||||
rm -rf $ROOTFS
|
||||
fi
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
help() {
|
||||
cat <<EOF
|
||||
|
||||
This script is a helper to create debian system containers.
|
||||
|
||||
The script will create the container configuration file following
|
||||
the informations submitted interactively with 'lxc-debian create'
|
||||
|
||||
The first creation will download, with debootstrap, a debian
|
||||
minimal and store it into a cache.
|
||||
|
||||
The script will copy from the cache the root filesystem to the
|
||||
current directory.
|
||||
|
||||
If there is a problem with the container, (bad configuration for
|
||||
example), you can destroy the container with 'lxc-debian destroy'
|
||||
but without removing the rootfs and recreate it again with
|
||||
'lxc-debian create'.
|
||||
|
||||
If you want to create another debian container, call the 'lxc-debian
|
||||
create' again, specifying another name and new parameters.
|
||||
|
||||
At any time you can purge the debian cache download by calling
|
||||
'lxc-debian purge'
|
||||
|
||||
Have fun :)
|
||||
|
||||
EOF
|
||||
}
|
||||
|
||||
purge() {
|
||||
|
||||
if [ ! -e $CACHE ]; then
|
||||
exit 0
|
||||
fi
|
||||
|
||||
# lock, so we won't purge while someone is creating a repository
|
||||
(
|
||||
flock -n -x 200
|
||||
|
||||
RES=$?
|
||||
if [ "$RES" != "0" ]; then
|
||||
echo "Cache repository is busy."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo -n "Purging the download cache..."
|
||||
rm -rf $CACHE/* && echo "Done." || exit 1
|
||||
exit 0
|
||||
|
||||
) 200>/var/lock/subsys/lxc
|
||||
}
|
||||
|
||||
if [ "$(id -u)" != "0" ]; then
|
||||
echo "This script should be run as 'root'"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
case "$1" in
|
||||
create)
|
||||
create;;
|
||||
destroy)
|
||||
destroy;;
|
||||
help)
|
||||
help;;
|
||||
purge)
|
||||
purge;;
|
||||
*)
|
||||
echo "Usage: $0 {create|destroy|purge|help}"
|
||||
exit 1;;
|
||||
esac
|
||||
Loading…
Reference in New Issue
Block a user