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root / snf-image-helper / tasks / 50AssignHostname.in @ c50358a6

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#! /bin/bash
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# Copyright (C) 2011 GRNET S.A. 
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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### BEGIN TASK INFO
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# Provides:		AssignHostname
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# RunBefore:            EnforcePersonality
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# RunAfter:		InstallUnattend
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# Short-Description:	Assign Hostname/Computer Name to the instance
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### END TASK INFO
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set -e
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. "@commondir@/common.sh"
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trap task_cleanup EXIT
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report_task_start
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# Check if the task should be prevented from running.
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check_if_excluded
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windows_hostname() {
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    local target="$1"
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    local password="$2"
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    local tmp_unattend=`mktemp` || exit 1
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    add_cleanup rm "$tmp_unattend"
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    echo -n "Assigning new computer name..."
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    local namespace="urn:schemas-microsoft-com:unattend"
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    "$XMLSTARLET" ed -N x=$namespace -u "/x:unattend/x:settings/x:component/x:ComputerName" -v "$password" "$target/Unattend.xml" > "$tmp_unattend"
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    cat "$tmp_unattend" > "$target/Unattend.xml"
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    echo done
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}
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linux_hostname() {
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    local target="$1"
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    local hostname="$2"
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    local distro=$(get_base_distro "$target")
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    case "$distro" in
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        debian)
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            echo "$hostname" > "$target/etc/hostname";;
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        redhat)
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            sed -ie "s/HOSTNAME=.*$/HOSTNAME=$hostname/g" "$target/etc/sysconfig/network";;
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        slackware|suse)
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            #local domain=$(sed -e 's/^[^\.]*//g' < /etc/HOSTNAME)
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            # In slackware hostname and domain name are joined together. For now
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            # I will not retain the domain name.
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            echo "$hostname" > "${target}/etc/HOSTNAME";;
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        gentoo)
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            sed -ie "s/\(\(HOSTNAME\)\|\(hostname\)\)=.*$/\1=\"$hostname\"/" "$target/etc/conf.d/hostname";;
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        arch)
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            # In newer archlinux systems /etc/hostname is used to assign the hostname
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            if [[ -f "$target/etc/hostname" ]]; then
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                echo "$hostname" > "$target/etc/hostname"
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            fi
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            # Older ones use the HOSTNAME variable in /etc/rc.conf
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            sed -ie "s/^HOSTNAME=.*$/HOSTNAME=\"$hostname\"/" "$target/etc/rc.conf"
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            if grep "^127\.0\.0\.1[ \t]*" "$target/etc/hosts" > /dev/null; then
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               sed -ie "s/127\.0\.0\.1[ \t]*.*$/127.0.0.1\t$hostname/" "$target/etc/hosts"
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            else
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               echo -e "127.0.0.1\t$hostname" >> "$target/etc/hosts"
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            fi;;
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        *) log_error "Don't know how to assign hostname. Unknown linux distribution.";;
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    esac
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    # Some Linux distributions assign the hostname to 127.0.1.1 in order to be
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    # resolvable to an IP address. Lets replace this if found in /etc/hosts
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    sed -ie "s/^[[:blank:]]*127\.0\.1\.1[[:blank:]].\+$/127.0.1.1\t$hostname/" "$target/etc/hosts"
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}
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if [ ! -d "$SNF_IMAGE_TARGET" ]; then
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    log_error "Target dir: \`$SNF_IMAGE_TARGET' is missing"	
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fi
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if [ -z "$SNF_IMAGE_HOSTNAME" ]; then
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    log_error "Hostname is missing"
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fi
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if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" = "windows" ]; then
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    windows_hostname "$SNF_IMAGE_TARGET" "$SNF_IMAGE_HOSTNAME"
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elif [ "$SNF_IMAGE_PROPERTY_OSFAMILY" = "linux" ]; then
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    linux_hostname "$SNF_IMAGE_TARGET" "$SNF_IMAGE_HOSTNAME"
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fi
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exit 0
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# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :
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