109 lines
3.6 KiB
Bash
Executable File
109 lines
3.6 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2014-2017 Steven Armstrong (steven-cdist at armstrong.cc)
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# 2014 Nico Schottelius (nico-cdist at schottelius.org)
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# 2019 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
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#
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# This file is part of cdist.
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#
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# cdist 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 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU 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 cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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os=$(cat "$__global/explorer/os")
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name_running=$(cat "$__global/explorer/hostname")
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name_config=$(cat "$__object/explorer/persistent_hostname")
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has_hostnamectl=$(cat "$__object/explorer/has_hostnamectl")
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if [ -f "$__object/parameter/name" ]; then
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name_should="$(cat "$__object/parameter/name")"
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else
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case $os
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in
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# RedHat-derivatives and BSDs
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centos|fedora|redhat|scientific|freebsd|netbsd|openbsd)
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# Hostname is FQDN
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name_should="${__target_host}"
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;;
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*)
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# Hostname is only first component of FQDN
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name_should="${__target_host%%.*}"
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;;
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esac
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fi
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################################################################################
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# Check if the hostname is already correct
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#
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if [ "$name_running" = "$name_should" ] \
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&& [ -z "$name_config" -o "$name_config" = "$name_should" ]
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then
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exit 0
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fi
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################################################################################
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# Setup hostname
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#
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echo 'changed' >>"$__messages_out"
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# First try to set the hostname using hostnamectl, if available.
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if [ -n "$has_hostnamectl" ]; then
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# Allow hostnamectl to fail silently.
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# Who the fuck invented a tool that needs dbus to set the hostname anyway…
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# NOTE: We write the static hostname to /etc/hostname first in case
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# hostnamectl fails. Fallback-code below will then adjust the running
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# hostname below.
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echo "echo '$name_should' >/etc/hostname"
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echo "hostnamectl set-hostname '$name_should' && exit 0"
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fi
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# Use the good old way to set the hostname. Also if hostnamectl fails.
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case $os
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in
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alpine|archlinux|debian|devuan|ubuntu)
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echo "echo '$name_should' >/etc/hostname"
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echo "hostname -F /etc/hostname"
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;;
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coreos|openbmc-phosphor)
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# NOTE: systemd-only distros have the hostname already written above.
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# But since hostamectl failed, we update the running hostname
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# manually.
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echo "hostname -F /etc/hostname"
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;;
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gentoo)
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# NOTE: Writing the hostname to file is done in the manifest for OpenRC.
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# For systemd hostnamectl should take care of that.
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echo "hostname '$name_should'"
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;;
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macosx)
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echo "scutil --set HostName '$name_should'"
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;;
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suse)
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# We write into /etc/HOSTNAME for backwards-compatibility. Modern SuSE
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# has hostnamectl anyway and symlinks /etc/HOSTNAME to /etc/hostname.
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echo "echo '$name_should' >/etc/HOSTNAME"
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echo 'hostname -F /etc/HOSTNAME'
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;;
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centos|fedora|freebsd|netbsd|openbsd|redhat|scientific)
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# NOTE: Writing the hostname to file is done in the manifest.
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echo "hostname '$name_should'"
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;;
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*)
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echo "echo 'Unsupported OS: $os' >&2; exit 1"
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;;
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esac
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