tobert · August 29, 2011 04:54 · Aug 29, 2011
diff --git a/start-lxc-cluster.sh b/start-lxc-cluster.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+COUNT=10
+BRIDGE="br1"
+FORMAT="lxc%d"
+PARENT=$(hostname --fqdn)
+LXC_ROOT=/srv/virt/lxc
+OS_ROOT=/srv/virt/lxc/base/root
+
+for num in $(seq 1 $COUNT)
+do
+  name=$(printf "$FORMAT" $num)
+  utsname="${name}.${PARENT}"
+
+  top="$LXC_ROOT/$utsname"
+  mkdir -p $top
+
+  root="${top}/root"
+  rootrw="${top}/rw"
+  conf="${top}/lxc.conf"
+  logfile="${top}/${utsname}.log"
+
+  # configuraable
+  mac=$(printf "4a:49:43:49:79:%02x" $num)
+  ip="192.168.4.$(($num + 100))/24"
+
+  mkdir -p $rootrw $root
+
+  # update /etc/ethers for dnsmasq
+  if (grep -q $mac /etc/ethers) ; then
+    sed -i "s/$mac.*$/$mac $ip/" /etc/ethers
+  else
+    echo "$mac $ip" >> /etc/ethers
+  fi
+  pkill -HUP dnsmasq
+
+  # lxc config file
+  cat > $conf <<EOF
+lxc.utsname = $utsname
+lxc.rootfs = $root
+#lxc.tty = 1
+lxc.console = $logfile
+lxc.cgroup.cpuset.cpus = $(cat /cgroup/cpuset.cpus)
+lxc.cgroup.cpu.shares = 100
+
+lxc.mount.entry=none proc proc nodev,noexec,nosuid 0 0
+lxc.mount.entry=none dev/shm tmpfs defaults 0 0
+lxc.mount.entry=none dev/pts devpts defaults 0 0
+
+lxc.network.type = veth
+lxc.network.flags = up
+lxc.network.link = $BRIDGE
+lxc.network.hwaddr = $mac
+lxc.network.ipv4 = $ip
+
+lxc.cgroup.devices.deny = a
+lxc.cgroup.devices.allow = c 1:3 rwm # /dev/null
+lxc.cgroup.devices.allow = c 1:5 rwm # /dev/zero
+lxc.cgroup.devices.allow = c 5:1 rwm # /dev/console
+lxc.cgroup.devices.allow = c 5:0 rwm # /dev/tty
+lxc.cgroup.devices.allow = c 4:0 rwm # /dev/tty0
+lxc.cgroup.devices.allow = c 1:9 rwm # /dev/random
+lxc.cgroup.devices.allow = c 1:8 rwm # /dev/urandom
+lxc.cgroup.devices.allow = c 136:* rwm # /dev/pts/*
+lxc.cgroup.devices.allow = c 5:2 rwm   # /dev/pts/ptmx
+#lxc.cgroup.devices.allow = c 254:0 rwm
+lxc.cap.drop = sys_boot sys_module sys_time
+EOF
+
+  unionfs -o cow,max_files=32768 \
+    -o allow_other,use_ino,suid,dev,nonempty \
+    "${rootrw}=RW:${OS_ROOT}=RO" $root
+
+  lxc-start -d -n $name -f $conf -o $logfile
+done
diff --git a/stop-lxc-cluster.sh b/stop-lxc-cluster.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+COUNT=10
+FORMAT="lxc%d"
+PARENT=$(hostname --fqdn)
+LXC_ROOT=/srv/virt/lxc
+
+for num in $(seq 1 $COUNT)
+do
+  name=$(printf "$FORMAT" $num)
+  utsname="${name}.${PARENT}"
+  top="$LXC_ROOT/$utsname"
+  root="${top}/root"
+
+  lxc-stop -n $name
+
+  umount -t fuse.unionfs $root
+done