Add __systemd_unit type (#589)

This commit is contained in:
lubo 2017-11-07 13:25:37 +01:00 committed by Darko Poljak
parent a8c41bfe44
commit b18327c520
10 changed files with 232 additions and 0 deletions

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#!/bin/sh
#
# 2017 Ľubomír Kučera <lubomir.kucera.jr at gmail.com>
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
systemctl is-enabled "${__object_id}" 2>/dev/null || true

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#!/bin/sh
#
# 2017 Ľubomír Kučera <lubomir.kucera.jr at gmail.com>
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
command -v systemctl > /dev/null 2>&1 && echo 0 || echo 1

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#!/bin/sh -e
#
# 2017 Ľubomír Kučera <lubomir.kucera.jr at gmail.com>
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
systemctl_present=$(cat "${__object}/explorer/systemctl-present")
if [ "${systemctl_present}" -ne 0 ]; then
echo "systemctl does not seem to be present on this system" >&2
exit 1
fi
name="${__object_id}"
state=$(cat "${__object}/parameter/state")
current_enablement_state=$(cat "${__object}/explorer/enablement-state")
if [ "${state}" = "absent" ]; then
if [ ! -z "${current_enablement_state}" ]; then
echo "systemctl --now disable ${name}"
fi
exit 0
fi
desired_enablement_state=$(cat "${__object}/parameter/enablement-state")
if [ "${current_enablement_state}" = "${desired_enablement_state}" ]; then
exit 0
fi
case "${desired_enablement_state}" in
"")
# Do nothing
:
;;
enabled)
echo "systemctl enable ${name}"
;;
disabled)
echo "systemctl disable ${name}"
;;
*)
echo "Unsupported unit status: ${desired_enablement_state}" >&2
exit 1
;;
esac

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cdist-type__systemd_unit(7)
===========================
NAME
----
cdist-type__systemd_unit - Install a systemd unit
DESCRIPTION
-----------
This type can install, enable and start a systemd unit. This is particularly
useful on systems which take advantage of systemd heavily (e.g., CoreOS). For
more information about systemd units, see SYSTEMD.UNIT(5).
REQUIRED PARAMETERS
-------------------
None.
OPTIONAL PARAMETERS
-------------------
enablement-state
'enabled' or 'disabled', where:
enabled
enables the unit
disabled
disables the unit
source
Path to the config file. If source is '-' (dash), take what was written to
stdin as the config file content.
state
'present' or 'absent', defaults to 'present' where:
present
the unit is installed, enabled and started
absent
the unit is stopped, disabled and uninstalled
BOOLEAN PARAMETERS
------------------
restart
Restart the unit on change.
MESSAGES
--------
None.
EXAMPLES
--------
.. code-block:: sh
# Installs, enables and starts foobar.service
__systemd_unit foobar.service \
--source "${__manifest}/files/foobar.service" \
--enablement-state enabled \
--restart
# Disables the unit
__systemd_unit foobar.service --enablement-state disabled
# Stops, disables and uninstalls foobar.service
__systemd_unit foobar.service --state absent
AUTHORS
-------
Ľubomír Kučera <lubomir.kucera.jr at gmail.com>
COPYING
-------
Copyright \(C) 2017 Ľubomír Kučera. You can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

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#!/bin/sh -e
#
# 2017 Ľubomír Kučera <lubomir.kucera.jr at gmail.com>
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
name="${__object_id}"
source=$(cat "${__object}/parameter/source")
state=$(cat "${__object}/parameter/state")
onchange() {
echo -n "systemctl daemon-reload"
if [ -f "${__object}/parameter/restart" ]; then
echo -n " && (systemctl restart ${name} || true)"
fi
echo
}
__config_file "/etc/systemd/system/${name}" \
--mode 644 \
--onchange "$(onchange)" \
--source "${source}" \
--state "${state}"

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restart

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present

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enablement-state
source
state