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https://git.proxmox.com/git/mirror_lxc
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dc0682900a
This adds the 3 upstart jobs that we've had in Ubuntu for a while: - lxc.conf: Main upstart job, triggers lxc-net.conf based on config - lxc-instance.conf: Triggered by lxc.conf for each auto-started container - lxc-net.conf: Triggered by lxc.conf, sets up lxcbr0, NAT, mangling, ... In addition, there are two extra config files in /etc/default: - lxc: Allows setting some values like http proxying, disabling autostart, ... - lxc-net: Network configuration for the lxcbr0 bridge This change also disables the sysv script for all distros but Oracle as the current script won't work on either Ubuntu nor Debian and I suspect quite a few more distros, so it's not nearly as distro-agnostic as we thought. For Debian, only install the upstart jobs and systemd unit. For Ubuntu, only install the upstart jobs. This change also moves all the init related stuff to config/init/ Signed-off-by: Stéphane Graber <stgraber@ubuntu.com> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
87 lines
3.8 KiB
Plaintext
87 lines
3.8 KiB
Plaintext
description "lxc network"
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author "Serge Hallyn <serge.hallyn@canonical.com>"
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start on starting lxc
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stop on stopped lxc
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env USE_LXC_BRIDGE="false"
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env LXC_BRIDGE="lxcbr0"
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env LXC_ADDR="10.0.3.1"
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env LXC_NETMASK="255.255.255.0"
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env LXC_NETWORK="10.0.3.0/24"
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env LXC_DHCP_RANGE="10.0.3.2,10.0.3.254"
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env LXC_DHCP_MAX="253"
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env LXC_DHCP_CONFILE=""
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env varrun="/var/run/lxc"
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env LXC_DOMAIN=""
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pre-start script
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[ -f /etc/default/lxc ] && . /etc/default/lxc
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[ "x$USE_LXC_BRIDGE" = "xtrue" ] || { stop; exit 0; }
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use_iptables_lock="-w"
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iptables -w -L -n 2>&1 > /dev/null || use_iptables_lock=""
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cleanup() {
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# dnsmasq failed to start, clean up the bridge
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p udp --dport 67 -j ACCEPT
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p tcp --dport 67 -j ACCEPT
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p udp --dport 53 -j ACCEPT
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p tcp --dport 53 -j ACCEPT
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iptables $use_iptables_lock -t nat -D POSTROUTING -s ${LXC_NETWORK} ! -d ${LXC_NETWORK} -j MASQUERADE || true
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iptables $use_iptables_lock -t mangle -D POSTROUTING -o ${LXC_BRIDGE} -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
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ifconfig ${LXC_BRIDGE} down || true
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brctl delbr ${LXC_BRIDGE} || true
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}
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if [ -d /sys/class/net/${LXC_BRIDGE} ]; then
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if [ ! -f ${varrun}/network_up ]; then
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# bridge exists, but we didn't start it
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stop;
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fi
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exit 0;
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fi
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# set up the lxc network
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brctl addbr ${LXC_BRIDGE} || { echo "Missing bridge support in kernel"; stop; exit 0; }
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echo 1 > /proc/sys/net/ipv4/ip_forward
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mkdir -p ${varrun}
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ifconfig ${LXC_BRIDGE} ${LXC_ADDR} netmask ${LXC_NETMASK} up
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iptables $use_iptables_lock -I INPUT -i ${LXC_BRIDGE} -p udp --dport 67 -j ACCEPT
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iptables $use_iptables_lock -I INPUT -i ${LXC_BRIDGE} -p tcp --dport 67 -j ACCEPT
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iptables $use_iptables_lock -I INPUT -i ${LXC_BRIDGE} -p udp --dport 53 -j ACCEPT
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iptables $use_iptables_lock -I INPUT -i ${LXC_BRIDGE} -p tcp --dport 53 -j ACCEPT
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iptables $use_iptables_lock -t nat -A POSTROUTING -s ${LXC_NETWORK} ! -d ${LXC_NETWORK} -j MASQUERADE
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iptables $use_iptables_lock -t mangle -A POSTROUTING -o ${LXC_BRIDGE} -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
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LXC_DOMAIN_ARG=""
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if [ -n "$LXC_DOMAIN" ]; then
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LXC_DOMAIN_ARG="-s $LXC_DOMAIN"
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fi
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dnsmasq $LXC_DOMAIN_ARG -u lxc-dnsmasq --strict-order --bind-interfaces --pid-file=${varrun}/dnsmasq.pid --conf-file=${LXC_DHCP_CONFILE} --listen-address ${LXC_ADDR} --dhcp-range ${LXC_DHCP_RANGE} --dhcp-lease-max=${LXC_DHCP_MAX} --dhcp-no-override --except-interface=lo --interface=${LXC_BRIDGE} --dhcp-leasefile=/var/lib/misc/dnsmasq.${LXC_BRIDGE}.leases --dhcp-authoritative || cleanup
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touch ${varrun}/network_up
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end script
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post-stop script
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[ -f /etc/default/lxc ] && . /etc/default/lxc
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[ -f "${varrun}/network_up" ] || exit 0;
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# if $LXC_BRIDGE has attached interfaces, don't shut it down
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ls /sys/class/net/${LXC_BRIDGE}/brif/* > /dev/null 2>&1 && exit 0;
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if [ -d /sys/class/net/${LXC_BRIDGE} ]; then
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use_iptables_lock="-w"
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iptables -w -L -n 2>&1 > /dev/null || use_iptables_lock=""
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ifconfig ${LXC_BRIDGE} down
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p udp --dport 67 -j ACCEPT
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p tcp --dport 67 -j ACCEPT
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p udp --dport 53 -j ACCEPT
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iptables $use_iptables_lock -D INPUT -i ${LXC_BRIDGE} -p tcp --dport 53 -j ACCEPT
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iptables $use_iptables_lock -t nat -D POSTROUTING -s ${LXC_NETWORK} ! -d ${LXC_NETWORK} -j MASQUERADE || true
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iptables $use_iptables_lock -t mangle -D POSTROUTING -o ${LXC_BRIDGE} -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
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pid=`cat ${varrun}/dnsmasq.pid 2>/dev/null` && kill -9 $pid || true
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rm -f ${varrun}/dnsmasq.pid
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brctl delbr ${LXC_BRIDGE}
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fi
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rm -f ${varrun}/network_up
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end script
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