ceph/debian/ceph-common.postinst

   1 #!/bin/sh
   2 # -*- mode:sh; tab-width:8; indent-tabs-mode:nil -*-
   3 # vim: set noet ts=8:
   4 # postinst script for ceph-mds
   5 #
   6 # see: dh_installdeb(1)
   7
   8 set -e
   9
  10 # summary of how this script can be called:
  11 #
  12 #       postinst configure <most-recently-configured-version>
  13 #       old-postinst abort-upgrade <new-version>
  14 #       conflictor's-postinst abort-remove in-favour <package> <new-version>
  15 #       postinst abort-remove
  16 #       deconfigured's-postinst abort-deconfigure in-favour <failed-install-package> <version> [<removing conflicting-package> <version>]
  17 #
  18
  19 # for details, see http://www.debian.org/doc/debian-policy/ or
  20 # the debian-policy package
  21
  22
  23 # Let the admin override these distro-specified defaults.  This is NOT
  24 # recommended!
  25 [ -f "/etc/default/ceph" ] && . /etc/default/ceph
  26
  27 [ -z "$SERVER_HOME" ] && SERVER_HOME=/var/lib/ceph
  28 [ -z "$SERVER_USER" ] && SERVER_USER=ceph
  29 [ -z "$SERVER_NAME" ] && SERVER_NAME="Ceph storage service"
  30 [ -z "$SERVER_GROUP" ] && SERVER_GROUP=ceph
  31 [ -z "$SERVER_UID" ] && SERVER_UID=64045  # alloc by Debian base-passwd maintainer
  32 [ -z "$SERVER_GID" ] && SERVER_GID=$SERVER_UID
  33
  34
  35 # Groups that the user will be added to, if undefined, then none.
  36 [ -z "$SERVER_ADDGROUP" ] && SERVER_ADDGROUP=
  37
  38 case "$1" in
  39     configure)
  40        # create user to avoid running server as root
  41        # 1. create group if not existing
  42        if ! getent group | grep -q "^$SERVER_GROUP:" ; then
  43           echo -n "Adding group $SERVER_GROUP.."
  44           addgroup --quiet --system --gid $SERVER_GID \
  45               $SERVER_GROUP 2>/dev/null ||true
  46           echo "..done"
  47        fi
  48        # 2. create user if not existing
  49        if ! getent passwd | grep -q "^$SERVER_USER:"; then
  50          echo -n "Adding system user $SERVER_USER.."
  51          adduser --quiet \
  52                  --system \
  53                  --no-create-home \
  54                  --disabled-password \
  55                  --uid $SERVER_UID \
  56                  --gid $SERVER_GID \
  57                  $SERVER_USER 2>/dev/null || true
  58          echo "..done"
  59        fi
  60        # 3. adjust passwd entry
  61        echo -n "Setting system user $SERVER_USER properties.."
  62        usermod -c "$SERVER_NAME" \
  63                -d $SERVER_HOME   \
  64                -g $SERVER_GROUP  \
  65                $SERVER_USER
  66        # Unlock $SERVER_USER in case it is locked from an uninstall
  67        if [ -f /etc/shadow ]; then
  68            usermod -U -e '' $SERVER_USER
  69        else
  70            usermod -U $SERVER_USER
  71        fi
  72        echo "..done"
  73
  74        # 4. adjust file and directory permissions
  75        if ! dpkg-statoverride --list $SERVER_HOME >/dev/null; then
  76            chown $SERVER_USER:$SERVER_GROUP $SERVER_HOME
  77            chmod u=rwx,g=rx,o= $SERVER_HOME
  78        fi
  79        if ! dpkg-statoverride --list /var/log/ceph >/dev/null; then
  80            # take care not to touch cephadm log subdirs
  81            chown $SERVER_USER:$SERVER_GROUP /var/log/ceph
  82            chown $SERVER_USER:$SERVER_GROUP /var/log/ceph/*.log* || true
  83            # members of group ceph can log here, but cannot remove
  84            # others' files.  non-members cannot read any logs.
  85            chmod u=rwx,g=rwxs,o=t /var/log/ceph
  86        fi
  87
  88        # 5. fix /var/run/ceph
  89        if [ -d /var/run/ceph ]; then
  90            echo -n "Fixing /var/run/ceph ownership.."
  91            chown $SERVER_USER:$SERVER_GROUP /var/run/ceph
  92            echo "..done"
  93        fi
  94
  95        # create /run/ceph.  fail softly if systemd isn't present or
  96        # something.
  97        [ -x /bin/systemd-tmpfiles ] && systemd-tmpfiles --create || true
  98     ;;
  99     abort-upgrade|abort-remove|abort-deconfigure)
 100        :
 101     ;;
 102
 103     *)
 104         echo "postinst called with unknown argument \`$1'" >&2
 105         exit 1
 106     ;;
 107 esac
 108
 109 # dh_installdeb will replace this with shell code automatically
 110 # generated by other debhelper scripts.
 111
 112 #DEBHELPER#
 113
 114 exit 0