Merge "Fix "sudo: sorry, you must have a tty to run sudo""
diff --git a/lib/baremetal b/lib/baremetal
index 112fd6d..3cc2429 100644
--- a/lib/baremetal
+++ b/lib/baremetal
@@ -200,14 +200,14 @@
     sudo mkdir -p /tftpboot
     sudo mkdir -p /tftpboot/pxelinux.cfg
     sudo cp /usr/lib/syslinux/pxelinux.0 /tftpboot/
-    sudo chown -R `whoami`:libvirtd /tftpboot
+    sudo chown -R $STACK_USER:libvirtd /tftpboot
 
     # ensure $NOVA_STATE_PATH/baremetal is prepared
     sudo mkdir -p $NOVA_STATE_PATH/baremetal
     sudo mkdir -p $NOVA_STATE_PATH/baremetal/console
     sudo mkdir -p $NOVA_STATE_PATH/baremetal/dnsmasq
     sudo touch $NOVA_STATE_PATH/baremetal/dnsmasq/dnsmasq-dhcp.host
-    sudo chown -R `whoami` $NOVA_STATE_PATH/baremetal
+    sudo chown -R $STACK_USER $NOVA_STATE_PATH/baremetal
 
     # ensure dnsmasq is installed but not running
     # because baremetal driver will reconfigure and restart this as needed
diff --git a/lib/ceilometer b/lib/ceilometer
index 749e785..0fae397 100644
--- a/lib/ceilometer
+++ b/lib/ceilometer
@@ -9,6 +9,7 @@
 # - OS_AUTH_URL for auth in api
 # - DEST set to the destination directory
 # - SERVICE_PASSWORD, SERVICE_TENANT_NAME for auth in api
+# - STACK_USER service user
 
 # stack.sh
 # ---------
@@ -94,7 +95,7 @@
 function init_ceilometer() {
     # Create cache dir
     sudo mkdir -p $CEILOMETER_AUTH_CACHE_DIR
-    sudo chown `whoami` $CEILOMETER_AUTH_CACHE_DIR
+    sudo chown $STACK_USER $CEILOMETER_AUTH_CACHE_DIR
     rm -f $CEILOMETER_AUTH_CACHE_DIR/*
 }
 
diff --git a/lib/cinder b/lib/cinder
index 1f40984..d9f8d63 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -3,7 +3,7 @@
 
 # Dependencies:
 # - functions
-# - DEST, DATA_DIR must be defined
+# - DEST, DATA_DIR, STACK_USER must be defined
 # SERVICE_{TENANT_NAME|PASSWORD} must be defined
 # ``KEYSTONE_TOKEN_FORMAT`` must be defined
 
@@ -116,7 +116,7 @@
     if [[ ! -d $CINDER_CONF_DIR ]]; then
         sudo mkdir -p $CINDER_CONF_DIR
     fi
-    sudo chown `whoami` $CINDER_CONF_DIR
+    sudo chown $STACK_USER $CINDER_CONF_DIR
 
     cp -p $CINDER_DIR/etc/cinder/policy.json $CINDER_CONF_DIR
 
@@ -306,7 +306,7 @@
 
     # Create cache dir
     sudo mkdir -p $CINDER_AUTH_CACHE_DIR
-    sudo chown `whoami` $CINDER_AUTH_CACHE_DIR
+    sudo chown $STACK_USER $CINDER_AUTH_CACHE_DIR
     rm -f $CINDER_AUTH_CACHE_DIR/*
 }
 
diff --git a/lib/glance b/lib/glance
index dff247a..1c56a67 100644
--- a/lib/glance
+++ b/lib/glance
@@ -3,7 +3,7 @@
 
 # Dependencies:
 # ``functions`` file
-# ``DEST``, ``DATA_DIR`` must be defined
+# ``DEST``, ``DATA_DIR``, ``STACK_USER`` must be defined
 # ``SERVICE_{TENANT_NAME|PASSWORD}`` must be defined
 # ``SERVICE_HOST``
 # ``KEYSTONE_TOKEN_FORMAT`` must be defined
@@ -75,7 +75,7 @@
     if [[ ! -d $GLANCE_CONF_DIR ]]; then
         sudo mkdir -p $GLANCE_CONF_DIR
     fi
-    sudo chown `whoami` $GLANCE_CONF_DIR
+    sudo chown $STACK_USER $GLANCE_CONF_DIR
 
     # Copy over our glance configurations and update them
     cp $GLANCE_DIR/etc/glance-registry.conf $GLANCE_REGISTRY_CONF
@@ -158,10 +158,10 @@
 
     # Create cache dir
     sudo mkdir -p $GLANCE_AUTH_CACHE_DIR/api
-    sudo chown `whoami` $GLANCE_AUTH_CACHE_DIR/api
+    sudo chown $STACK_USER $GLANCE_AUTH_CACHE_DIR/api
     rm -f $GLANCE_AUTH_CACHE_DIR/api/*
     sudo mkdir -p $GLANCE_AUTH_CACHE_DIR/registry
-    sudo chown `whoami` $GLANCE_AUTH_CACHE_DIR/registry
+    sudo chown $STACK_USER $GLANCE_AUTH_CACHE_DIR/registry
     rm -f $GLANCE_AUTH_CACHE_DIR/registry/*
 }
 
diff --git a/lib/heat b/lib/heat
index a6f7286..89bd44f 100644
--- a/lib/heat
+++ b/lib/heat
@@ -49,7 +49,7 @@
     if [[ ! -d $HEAT_CONF_DIR ]]; then
         sudo mkdir -p $HEAT_CONF_DIR
     fi
-    sudo chown `whoami` $HEAT_CONF_DIR
+    sudo chown $STACK_USER $HEAT_CONF_DIR
 
     HEAT_API_CFN_HOST=${HEAT_API_CFN_HOST:-$SERVICE_HOST}
     HEAT_API_CFN_PORT=${HEAT_API_CFN_PORT:-8000}
diff --git a/lib/keystone b/lib/keystone
index 34f3372..7a70cc4 100644
--- a/lib/keystone
+++ b/lib/keystone
@@ -7,6 +7,7 @@
 # ``SERVICE_HOST``, ``SERVICE_PROTOCOL``
 # ``SERVICE_TOKEN``
 # ``S3_SERVICE_PORT`` (template backend only)
+# ``STACK_USER``
 
 # ``stack.sh`` calls the entry points in this order:
 #
@@ -79,7 +80,7 @@
     if [[ ! -d $KEYSTONE_CONF_DIR ]]; then
         sudo mkdir -p $KEYSTONE_CONF_DIR
     fi
-    sudo chown `whoami` $KEYSTONE_CONF_DIR
+    sudo chown $STACK_USER $KEYSTONE_CONF_DIR
 
     if [[ "$KEYSTONE_CONF_DIR" != "$KEYSTONE_DIR/etc" ]]; then
         cp -p $KEYSTONE_DIR/etc/keystone.conf.sample $KEYSTONE_CONF
@@ -261,7 +262,7 @@
 
         # Create cache dir
         sudo mkdir -p $KEYSTONE_AUTH_CACHE_DIR
-        sudo chown `whoami` $KEYSTONE_AUTH_CACHE_DIR
+        sudo chown $STACK_USER $KEYSTONE_AUTH_CACHE_DIR
         rm -f $KEYSTONE_AUTH_CACHE_DIR/*
     fi
 }
diff --git a/lib/nova b/lib/nova
index a987008..8135bf1 100644
--- a/lib/nova
+++ b/lib/nova
@@ -3,7 +3,7 @@
 
 # Dependencies:
 # ``functions`` file
-# ``DEST``, ``DATA_DIR`` must be defined
+# ``DEST``, ``DATA_DIR``, ``STACK_USER`` must be defined
 # ``SERVICE_{TENANT_NAME|PASSWORD}`` must be defined
 # ``LIBVIRT_TYPE`` must be defined
 # ``INSTANCE_NAME_PREFIX``, ``VOLUME_NAME_PREFIX`` must be defined
@@ -149,7 +149,7 @@
     if [[ ! -d $NOVA_CONF_DIR ]]; then
         sudo mkdir -p $NOVA_CONF_DIR
     fi
-    sudo chown `whoami` $NOVA_CONF_DIR
+    sudo chown $STACK_USER $NOVA_CONF_DIR
 
     cp -p $NOVA_DIR/etc/nova/policy.json $NOVA_CONF_DIR
 
@@ -277,7 +277,7 @@
         if ! getent group libvirtd >/dev/null; then
             sudo groupadd libvirtd
         fi
-        add_user_to_group `whoami` libvirtd
+        add_user_to_group $STACK_USER libvirtd
 
         # libvirt detects various settings on startup, as we potentially changed
         # the system configuration (modules, filesystems), we need to restart
@@ -297,7 +297,7 @@
         if [ -L /dev/disk/by-label/nova-instances ]; then
             if ! mount -n | grep -q $NOVA_INSTANCES_PATH; then
                 sudo mount -L nova-instances $NOVA_INSTANCES_PATH
-                sudo chown -R `whoami` $NOVA_INSTANCES_PATH
+                sudo chown -R $STACK_USER $NOVA_INSTANCES_PATH
             fi
         fi
 
@@ -474,13 +474,13 @@
 
     # Create cache dir
     sudo mkdir -p $NOVA_AUTH_CACHE_DIR
-    sudo chown `whoami` $NOVA_AUTH_CACHE_DIR
+    sudo chown $STACK_USER $NOVA_AUTH_CACHE_DIR
     rm -f $NOVA_AUTH_CACHE_DIR/*
 
     # Create the keys folder
     sudo mkdir -p ${NOVA_STATE_PATH}/keys
     # make sure we own NOVA_STATE_PATH and all subdirs
-    sudo chown -R `whoami` ${NOVA_STATE_PATH}
+    sudo chown -R $STACK_USER ${NOVA_STATE_PATH}
 }
 
 # install_novaclient() - Collect source and prepare
diff --git a/lib/quantum b/lib/quantum
index b8b115a..343e5a9 100644
--- a/lib/quantum
+++ b/lib/quantum
@@ -390,7 +390,7 @@
     if [[ ! -d $QUANTUM_CONF_DIR ]]; then
         sudo mkdir -p $QUANTUM_CONF_DIR
     fi
-    sudo chown `whoami` $QUANTUM_CONF_DIR
+    sudo chown $STACK_USER $QUANTUM_CONF_DIR
 
     cp $QUANTUM_DIR/etc/quantum.conf $QUANTUM_CONF
 
@@ -742,7 +742,7 @@
     iniset $conf_file $section signing_dir $QUANTUM_AUTH_CACHE_DIR
     # Create cache dir
     sudo mkdir -p $QUANTUM_AUTH_CACHE_DIR
-    sudo chown `whoami` $QUANTUM_AUTH_CACHE_DIR
+    sudo chown $STACK_USER $QUANTUM_AUTH_CACHE_DIR
     rm -f $QUANTUM_AUTH_CACHE_DIR/*
 }
 
diff --git a/lib/ryu b/lib/ryu
index ac3462b..1292313 100644
--- a/lib/ryu
+++ b/lib/ryu
@@ -27,7 +27,7 @@
     if [[ ! -d $RYU_CONF_DIR ]]; then
         sudo mkdir -p $RYU_CONF_DIR
     fi
-    sudo chown `whoami` $RYU_CONF_DIR
+    sudo chown $STACK_USER $RYU_CONF_DIR
     RYU_CONF=$RYU_CONF_DIR/ryu.conf
     sudo rm -rf $RYU_CONF
 
diff --git a/lib/swift b/lib/swift
index b418eda..46c6eb2 100644
--- a/lib/swift
+++ b/lib/swift
@@ -4,6 +4,7 @@
 # Dependencies:
 # ``functions`` file
 # ``DEST``, ``SCREEN_NAME``, `SWIFT_HASH` must be defined
+# ``STACK_USER`` must be defined
 # ``SWIFT_DATA_DIR`` or ``DATA_DIR`` must be defined
 # ``lib/keystone`` file
 # ``stack.sh`` calls the entry points in this order:
@@ -333,7 +334,7 @@
 
     # Create cache dir
     sudo mkdir -p $SWIFT_AUTH_CACHE_DIR
-    sudo chown `whoami` $SWIFT_AUTH_CACHE_DIR
+    sudo chown $STACK_USER $SWIFT_AUTH_CACHE_DIR
     rm -f $SWIFT_AUTH_CACHE_DIR/*
 }
 
diff --git a/stack.sh b/stack.sh
index c564137..5c071fc 100755
--- a/stack.sh
+++ b/stack.sh
@@ -177,40 +177,43 @@
 # sudo privileges and runs as that user.
 
 if [[ $EUID -eq 0 ]]; then
+    STACK_USER=$DEFAULT_STACK_USER
     ROOTSLEEP=${ROOTSLEEP:-10}
     echo "You are running this script as root."
-    echo "In $ROOTSLEEP seconds, we will create a user 'stack' and run as that user"
+    echo "In $ROOTSLEEP seconds, we will create a user '$STACK_USER' and run as that user"
     sleep $ROOTSLEEP
 
     # Give the non-root user the ability to run as **root** via ``sudo``
     is_package_installed sudo || install_package sudo
-    if ! getent group stack >/dev/null; then
-        echo "Creating a group called stack"
-        groupadd stack
+    if ! getent group $STACK_USER >/dev/null; then
+        echo "Creating a group called $STACK_USER"
+        groupadd $STACK_USER
     fi
-    if ! getent passwd stack >/dev/null; then
-        echo "Creating a user called stack"
-        useradd -g stack -s /bin/bash -d $DEST -m stack
+    if ! getent passwd $STACK_USER >/dev/null; then
+        echo "Creating a user called $STACK_USER"
+        useradd -g $STACK_USER -s /bin/bash -d $DEST -m $STACK_USER
     fi
 
     echo "Giving stack user passwordless sudo privileges"
     # UEC images ``/etc/sudoers`` does not have a ``#includedir``, add one
     grep -q "^#includedir.*/etc/sudoers.d" /etc/sudoers ||
         echo "#includedir /etc/sudoers.d" >> /etc/sudoers
-    ( umask 226 && echo "stack ALL=(ALL) NOPASSWD:ALL" \
+    ( umask 226 && echo "$STACK_USER ALL=(ALL) NOPASSWD:ALL" \
         > /etc/sudoers.d/50_stack_sh )
 
-    echo "Copying files to stack user"
+    echo "Copying files to $STACK_USER user"
     STACK_DIR="$DEST/${TOP_DIR##*/}"
     cp -r -f -T "$TOP_DIR" "$STACK_DIR"
-    chown -R stack "$STACK_DIR"
+    chown -R $STACK_USER "$STACK_DIR"
+    cd "$STACK_DIR"
     if [[ "$SHELL_AFTER_RUN" != "no" ]]; then
-        exec su -c "set -e; cd $STACK_DIR; bash stack.sh; bash" stack
+        exec sudo -u $STACK_USER  bash -l -c "set -e; bash stack.sh; bash"
     else
-        exec su -c "set -e; cd $STACK_DIR; bash stack.sh" stack
+        exec sudo -u $STACK_USER bash -l -c "set -e; source stack.sh"
     fi
     exit 1
 else
+    STACK_USER=`whoami`
     # We're not **root**, make sure ``sudo`` is available
     is_package_installed sudo || die "Sudo is required.  Re-run stack.sh as root ONE TIME ONLY to set up sudo."
 
@@ -220,10 +223,10 @@
 
     # Set up devstack sudoers
     TEMPFILE=`mktemp`
-    echo "`whoami` ALL=(root) NOPASSWD:ALL" >$TEMPFILE
+    echo "$STACK_USER ALL=(root) NOPASSWD:ALL" >$TEMPFILE
     # Some binaries might be under /sbin or /usr/sbin, so make sure sudo will
     # see them by forcing PATH
-    echo "Defaults:`whoami` secure_path=/sbin:/usr/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/local/bin" >> $TEMPFILE
+    echo "Defaults:$STACK_USER secure_path=/sbin:/usr/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/local/bin" >> $TEMPFILE
     chmod 0440 $TEMPFILE
     sudo chown root:root $TEMPFILE
     sudo mv $TEMPFILE /etc/sudoers.d/50_stack_sh
@@ -235,7 +238,7 @@
 # Create the destination directory and ensure it is writable by the user
 sudo mkdir -p $DEST
 if [ ! -w $DEST ]; then
-    sudo chown `whoami` $DEST
+    sudo chown $STACK_USER $DEST
 fi
 
 # Set ``OFFLINE`` to ``True`` to configure ``stack.sh`` to run cleanly without
@@ -251,7 +254,7 @@
 # Destination path for service data
 DATA_DIR=${DATA_DIR:-${DEST}/data}
 sudo mkdir -p $DATA_DIR
-sudo chown `whoami` $DATA_DIR
+sudo chown $STACK_USER $DATA_DIR
 
 
 # Common Configuration
diff --git a/stackrc b/stackrc
index 89d4f09..8d19440 100644
--- a/stackrc
+++ b/stackrc
@@ -12,6 +12,9 @@
 # Select the default database
 DATABASE_TYPE=mysql
 
+# Default stack user
+DEFAULT_STACK_USER=stack
+
 # Specify which services to launch.  These generally correspond to
 # screen tabs. To change the default list, use the ``enable_service`` and
 # ``disable_service`` functions in ``localrc``.
diff --git a/tools/build_ramdisk.sh b/tools/build_ramdisk.sh
index 5ff05b0..cfcca51 100755
--- a/tools/build_ramdisk.sh
+++ b/tools/build_ramdisk.sh
@@ -125,17 +125,17 @@
     # Create a stack user that is a member of the libvirtd group so that stack
     # is able to interact with libvirt.
     chroot $MNTDIR groupadd libvirtd
-    chroot $MNTDIR useradd stack -s /bin/bash -d $DEST -G libvirtd
+    chroot $MNTDIR useradd $DEFAULT_STACK_USER -s /bin/bash -d $DEST -G libvirtd
     mkdir -p $MNTDIR/$DEST
-    chroot $MNTDIR chown stack $DEST
+    chroot $MNTDIR chown $DEFAULT_STACK_USER $DEST
 
     # A simple password - pass
-    echo stack:pass | chroot $MNTDIR chpasswd
+    echo $DEFAULT_STACK_USER:pass | chroot $MNTDIR chpasswd
     echo root:$ROOT_PASSWORD | chroot $MNTDIR chpasswd
 
     # And has sudo ability (in the future this should be limited to only what
     # stack requires)
-    echo "stack ALL=(ALL) NOPASSWD: ALL" >> $MNTDIR/etc/sudoers
+    echo "$DEFAULT_STACK_USER ALL=(ALL) NOPASSWD: ALL" >> $MNTDIR/etc/sudoers
 
     umount $MNTDIR
     rmdir $MNTDIR
@@ -187,7 +187,7 @@
 # Use this version of devstack
 rm -rf $MNTDIR/$DEST/devstack
 cp -pr $CWD $MNTDIR/$DEST/devstack
-chroot $MNTDIR chown -R stack $DEST/devstack
+chroot $MNTDIR chown -R $DEFAULT_STACK_USER $DEST/devstack
 
 # Configure host network for DHCP
 mkdir -p $MNTDIR/etc/network
@@ -225,7 +225,7 @@
 
 # Make the run.sh executable
 chmod 755 $RUN_SH
-chroot $MNTDIR chown stack $DEST/run.sh
+chroot $MNTDIR chown $DEFAULT_STACK_USER $DEST/run.sh
 
 umount $MNTDIR
 rmdir $MNTDIR
diff --git a/tools/build_uec.sh b/tools/build_uec.sh
index 58c5425..5748b39 100755
--- a/tools/build_uec.sh
+++ b/tools/build_uec.sh
@@ -207,11 +207,11 @@
 `cat $TOP_DIR/localrc`
 LOCAL_EOF
 fi
-useradd -U -G sudo -s /bin/bash -d /opt/stack -m stack
-echo stack:pass | chpasswd
+useradd -U -G sudo -s /bin/bash -d /opt/stack -m $DEFAULT_STACK_USER
+echo $DEFAULT_STACK_USER:pass | chpasswd
 mkdir -p /opt/stack/.ssh
 echo "$PUB_KEY" > /opt/stack/.ssh/authorized_keys
-chown -R stack /opt/stack
+chown -R $DEFAULT_STACK_USER /opt/stack
 chmod 700 /opt/stack/.ssh
 chmod 600 /opt/stack/.ssh/authorized_keys
 
@@ -224,7 +224,7 @@
 
 # Run stack.sh
 cat >> $vm_dir/uec/user-data<<EOF
-su -c "cd /opt/stack/devstack && ./stack.sh" stack
+sudo -u $DEFAULT_STACK_USER bash -l -c "cd /opt/stack/devstack && ./stack.sh"
 EOF
 
 # (re)start a metadata service
diff --git a/tools/copy_dev_environment_to_uec.sh b/tools/copy_dev_environment_to_uec.sh
index 683a0d6..add4ff6 100755
--- a/tools/copy_dev_environment_to_uec.sh
+++ b/tools/copy_dev_environment_to_uec.sh
@@ -18,6 +18,9 @@
 # Change dir to top of devstack
 cd $TOP_DIR
 
+# Source params
+source ./stackrc
+
 # Echo usage
 usage() {
     echo "Add stack user and keys"
@@ -43,13 +46,13 @@
 # Create a stack user that is a member of the libvirtd group so that stack
 # is able to interact with libvirt.
 chroot $STAGING_DIR groupadd libvirtd || true
-chroot $STAGING_DIR useradd stack -s /bin/bash -d $DEST -G libvirtd || true
+chroot $STAGING_DIR useradd $DEFAULT_STACK_USER -s /bin/bash -d $DEST -G libvirtd || true
 
 # Add a simple password - pass
-echo stack:pass | chroot $STAGING_DIR chpasswd
+echo $DEFAULT_STACK_USER:pass | chroot $STAGING_DIR chpasswd
 
 # Configure sudo
-( umask 226 && echo "stack ALL=(ALL) NOPASSWD:ALL" \
+( umask 226 && echo "$DEFAULT_STACK_USER ALL=(ALL) NOPASSWD:ALL" \
     > $STAGING_DIR/etc/sudoers.d/50_stack_sh )
 
 # Copy over your ssh keys and env if desired
@@ -64,7 +67,7 @@
 cp_it . $STAGING_DIR/$DEST/devstack
 
 # Give stack ownership over $DEST so it may do the work needed
-chroot $STAGING_DIR chown -R stack $DEST
+chroot $STAGING_DIR chown -R $DEFAULT_STACK_USER $DEST
 
 # Unmount
 umount $STAGING_DIR
diff --git a/tools/xen/build_xva.sh b/tools/xen/build_xva.sh
index c359c55..f3f166f 100755
--- a/tools/xen/build_xva.sh
+++ b/tools/xen/build_xva.sh
@@ -65,8 +65,8 @@
 cat <<EOF >$STAGING_DIR/etc/rc.local
 # network restart required for getting the right gateway
 /etc/init.d/networking restart
-chown -R stack /opt/stack
-su -c "/opt/stack/run.sh > /opt/stack/run.sh.log" stack
+chown -R $DEFAULT_STACK_USER /opt/stack
+su -c "/opt/stack/run.sh > /opt/stack/run.sh.log" $DEFAULT_STACK_USER
 exit 0
 EOF
 
diff --git a/tools/xen/prepare_guest.sh b/tools/xen/prepare_guest.sh
index 4aa4554..fe52445 100755
--- a/tools/xen/prepare_guest.sh
+++ b/tools/xen/prepare_guest.sh
@@ -19,6 +19,7 @@
 STAGING_DIR=${STAGING_DIR:-stage}
 DO_TGZ=${DO_TGZ:-1}
 XS_TOOLS_PATH=${XS_TOOLS_PATH:-"/root/xs-tools.deb"}
+STACK_USER=${STACK_USER:-stack}
 
 # Install basics
 chroot $STAGING_DIR apt-get update
@@ -46,12 +47,12 @@
 
 # Add stack user
 chroot $STAGING_DIR groupadd libvirtd
-chroot $STAGING_DIR useradd stack -s /bin/bash -d /opt/stack -G libvirtd
-echo stack:$GUEST_PASSWORD | chroot $STAGING_DIR chpasswd
-echo "stack ALL=(ALL) NOPASSWD: ALL" >> $STAGING_DIR/etc/sudoers
+chroot $STAGING_DIR useradd $STACK_USER -s /bin/bash -d /opt/stack -G libvirtd
+echo $STACK_USER:$GUEST_PASSWORD | chroot $STAGING_DIR chpasswd
+echo "$STACK_USER ALL=(ALL) NOPASSWD: ALL" >> $STAGING_DIR/etc/sudoers
 
 # Give ownership of /opt/stack to stack user
-chroot $STAGING_DIR chown -R stack /opt/stack
+chroot $STAGING_DIR chown -R $STACK_USER /opt/stack
 
 # Make our ip address hostnames look nice at the command prompt
 echo "export PS1='${debian_chroot:+($debian_chroot)}\\u@\\H:\\w\\$ '" >> $STAGING_DIR/opt/stack/.bashrc