3 # useradd(8) wrapper for vservers
5 # Mark Huang <mlhuang@cs.princeton.edu>
6 # Copyright (C) 2004-2006 The Trustees of Princeton University
11 : ${UTIL_VSERVER_VARS:=/usr/lib/util-vserver/util-vserver-vars}
12 test -e "$UTIL_VSERVER_VARS" || {
13 echo "Can not find util-vserver installation; aborting..."
16 . "$UTIL_VSERVER_VARS"
26 pushd "$__DEFAULT_VSERVERDIR/.vref" >/dev/null
28 if [ -z "$TYPES" ] ; then
36 echo "Usage: vuseradd [OPTION]... [NAME]"
37 echo " -t Reference image type ($TYPES)"
43 while getopts "it:" opt ; do
56 shift $(($OPTIND - 1))
62 # Add slices group to /etc/group if not already present
63 groupadd slices 2>/dev/null || :
65 # Add slice name to /etc/passwd
66 useradd -g slices -s /bin/vsh $NAME -p '*'
70 GROUPNAME=`id -gn $NAME`
72 # Create /etc/vservers configuration files
73 if [ ! -d $__CONFDIR/$NAME ] ; then
74 # Move away the guest contents for now
75 if [ -d $__DEFAULT_VSERVERDIR/$NAME ] ; then
76 mkdir -p "$__DEFAULT_VSERVERDIR/.vtmp"
77 TMP=$(mktemp -d "$__DEFAULT_VSERVERDIR/.vtmp/$NAME.XXXXXX")
78 mv $__DEFAULT_VSERVERDIR/$NAME "$TMP"
84 if [ "$ISOLATE" = "true" ] ; then
85 $_VSERVER $NAME build -m skeleton --context $USERID \
86 --interface nodev:`hostname -i` \
87 --flags persistent,~info_init
89 $_VSERVER $NAME build -m skeleton --context $USERID \
90 --interface nodev:`hostname -i` \
91 --interface nodev:127.0.0.1 \
92 --flags persistent,~info_init
97 if [ $RETVAL -ne 0 ] ; then
98 echo "Error $RETVAL building $DIR"
99 rm -rf $DIR $__DEFAULT_VSERVERDIR/$NAME
101 mkdir -p $DIR/apps/init $DIR/rlimits $DIR/sched $DIR/cgroup $DIR/dlimits/0 $DIR/sysctl/0
102 echo default > $DIR/apps/init/mark
104 # Set persistent for the network context
105 if [ "$ISOLATE" = "true" ]; then
106 echo persistent,lback_allow,hide_lback,lback_remap > $DIR/nflags
108 echo persistent,lback_allow > $DIR/nflags
111 # Set default capabilities
112 echo "CAP_NET_RAW" > $DIR/bcapabilities
113 touch $DIR/ccapabilities
115 # Set up the scheduler
116 echo 100 > $DIR/sched/interval
117 echo 1000 > $DIR/sched/interval2
118 echo 0 > $DIR/sched/fill-rate
119 echo 1 > $DIR/sched/fill-rate2
120 touch $DIR/sched/idle-time
121 echo 100 > $DIR/sched/tokens
122 echo 50 > $DIR/sched/tokens-min
123 echo 100 > $DIR/sched/tokens-max
125 echo 1024 > $DIR/cgroup/cpu.shares
127 # Set up disk limits (10 GB)
128 echo `$_READLINK $DIR/vdir` > $DIR/dlimits/0/directory
129 echo 2 > $DIR/dlimits/0/reserved
130 echo -1 > $DIR/dlimits/0/inodes_total
131 echo 10000000 > $DIR/dlimits/0/space_total
133 # Set up sysctl variables
134 echo net.ipv4.ip_forward > $DIR/sysctl/0/setting
135 echo 1 > $DIR/sysctl/0/value
137 # Add spaces directory
140 # Remove the basically empty guest directory
141 rm -rf $__DEFAULT_VSERVERDIR/$NAME
142 # Move the guest back
143 if [ "$HAS_VSERVERDIR" = 1 ] ; then
144 mv "$TMP/$NAME" $__DEFAULT_VSERVERDIR/$NAME
149 if [ ! -d "$__DEFAULT_VSERVERDIR/$NAME" ] ; then
151 if [ "$TYPE" = "default" ] ; then
152 for i in "$__DEFAULT_VSERVERDIR/.vcache/"* ; do
153 [ -d "$i" ] && mv "$i" "$__DEFAULT_VSERVERDIR/$NAME" && break
157 # Build slice from reference image
158 if [ ! -d "$__DEFAULT_VSERVERDIR/$NAME" ] ; then
159 REF="$__DEFAULT_VSERVERDIR/.vref/$TYPE"
161 # Build in temporary directory
162 mkdir -p "$__DEFAULT_VSERVERDIR/.vtmp"
163 TMP=$(mktemp -d "$__DEFAULT_VSERVERDIR/.vtmp/$NAME.XXXXXX")
164 "$_VCLONE" "$REF"/ "$TMP"/
167 # Move it to its permanent location when complete
168 if [ $RETVAL -eq 0 ] ; then
169 mv "$TMP" "$__DEFAULT_VSERVERDIR/$NAME"
171 echo "Error $RETVAL building $__DEFAULT_VSERVERDIR/$NAME"
172 rm -rf "$TMP" $__CONFDIR/$NAME $__PKGSTATEDIR/$NAME.ctx
179 if [ -d "$__DEFAULT_VSERVERDIR/$NAME" ] ; then
181 chmod 755 "$__DEFAULT_VSERVERDIR/$NAME"
183 # Add user in vserver
184 $_VSERVER $NAME start --rescue sh -c \
185 "groupadd -g $GROUPID $GROUPNAME ; useradd -m -u $USERID -g $GROUPID -p '' $NAME"
187 # Stop the guest (since it's persistent)
190 # Add an unrestricted entry to /etc/sudoers file
191 if [ -f "$__DEFAULT_VSERVERDIR/$NAME/etc/sudoers" ] && \
192 ! grep -q "^$NAME" "$__DEFAULT_VSERVERDIR/$NAME/etc/sudoers" ; then
193 echo "$NAME ALL=(ALL) ALL" >> "$__DEFAULT_VSERVERDIR/$NAME/etc/sudoers"
196 cp -a /dev/fuse $__DEFAULT_VSERVERDIR/$NAME/dev/