source: trunk/debathena/config/reactivate/debian/snapshot-run @ 25275

Revision 25275, 2.0 KB checked in by jdreed, 13 years ago (diff)
In reactivate: * Fix the patch for Trac #656 to use the correct regexp
  • Property svn:executable set to *
Line 
1#!/bin/sh
2#
3# snapshot-run PROGRAM [ARGS]
4# Create an Athena login snapshot, run PROGRAM within it, and clean up
5# the snapshot.
6#
7# This script is run as the user who is logging in, usually as a wrapper
8# around their Xsession or shell. You probably want to run reactivate
9# immediately afterwards, as root.
10
11set -e
12cd /
13
14addgroups="admin lpadmin adm fuse cdrom floppy audio video plugdev scanner dialout lp"
15daemons="$(/usr/sbin/policy-rc.d --daemons)"
16
17# Setup
18
19session=$(schroot -c login -b)
20sch() { schroot -r -c "$session" -- "$@"; }          # Run in the chroot
21schq() { schroot -q -r -c "$session" -- "$@"; }      # Run in the chroot quietly
22schr() { schroot -r -c "$session" -u root -- "$@"; } # Run in the chroot as root
23
24for group in $addgroups; do
25    schr getent group "$group" >/dev/null 2>&1 && schr adduser "$USER" "$group"
26done
27
28schr sed -i "/su-error/d" "/etc/pam.d/su.debathena"
29
30schr touch /ClusterLogin
31
32for daemon in $daemons; do
33    schr invoke-rc.d "$daemon" start || [ $? = 100 ]
34done
35
36schr rm /etc/debian_chroot
37
38# Deter people from thinking they can use /home as persistant storage
39# by punting it
40schr rm -rf /home
41
42# Fix up mtab so that df and friends work correctly
43schr sed -i "s| /var/lib/schroot/mount/${session}/| /|" /etc/mtab
44
45# Run the session
46#
47# We wrap the target command in sudo because it runs initgroups(3)
48# /after/ being chrooted, which puts users back in the groups we
49# added them to
50
51# Workaround for stupidity, see #928 for details
52# Remove this once we're running pam-afs-session 2.4
53# Run this inside the "set -e" block so it'll fail if necessary
54echo "KRB5CCNAME=$KRB5CCNAME" >| /tmp/ticketenv
55
56set +e
57
58echo "$USER ALL=(ALL) ALL" | schr sh -c "cat >> /etc/sudoers"
59
60cd
61schroot -c "$session" -r -p -- sudo -E -u "$USER" -- "$@"
62cd /
63
64# Teardown
65
66# Remove file from above.
67# (This also gets nuked in reactivate, but be paranoid)
68rm -f /tmp/ticketenv
69
70for daemon in $daemons; do
71    schr invoke-rc.d "$daemon" stop || [ $? = 100 ]
72done
73
74schroot -c "$session" -e
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