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systemd/test/TEST-15-DROPIN/test-dropin.sh
Zbigniew Jędrzejewski-Szmek cc5549ca12 scripts: use 4 space indentation
We had all kinds of indentation: 2 sp, 3 sp, 4 sp, 8 sp, and mixed.
4 sp was the most common, in particular the majority of scripts under test/
used that. Let's standarize on 4 sp, because many commandlines are long and
there's a lot of nesting, and with 8sp indentation less stuff fits. 4 sp
also seems to be the default indentation, so this will make it less likely
that people will mess up if they don't load the editor config. (I think people
often use vi, and vi has no support to load project-wide configuration
automatically. We distribute a .vimrc file, but it is not loaded by default,
and even the instructions in it seem to discourage its use for security
reasons.)

Also remove the few vim config lines that were left. We should either have them
on all files, or none.

Also remove some strange stuff like '#!/bin/env bash', yikes.
2019-04-12 08:30:31 +02:00

284 lines
9.2 KiB
Bash
Executable File

#! /bin/bash
set -e
set -x
_clear_service () {
systemctl stop $1.service 2>/dev/null || :
rm -f /{etc,run,usr/lib}/systemd/system/$1.service
rm -fr /{etc,run,usr/lib}/systemd/system/$1.service.d
rm -fr /{etc,run,usr/lib}/systemd/system/$1.service.{wants,requires}
}
clear_services () {
for u in $*; do
_clear_service $u
done
systemctl daemon-reload
}
create_service () {
clear_services $1
cat >/etc/systemd/system/$1.service<<EOF
[Unit]
Description=$1 unit
[Service]
ExecStart=/bin/sleep 100000
EOF
mkdir -p /{etc,run,usr/lib}/systemd/system/$1.service.d
mkdir -p /etc/systemd/system/$1.service.{wants,requires}
mkdir -p /run/systemd/system/$1.service.{wants,requires}
mkdir -p /usr/lib/systemd/system/$1.service.{wants,requires}
}
create_services () {
for u in $*; do
create_service $u
done
}
check_ok () {
[ $# -eq 3 ] || return
x="$(systemctl show --value -p $2 $1)"
case "$x" in
*$3*) return 0 ;;
*) return 1 ;;
esac
}
check_ko () {
! check_ok "$@"
}
test_basic_dropins () {
echo "Testing basic dropins..."
echo "*** test a wants b wants c"
create_services a b c
ln -s ../b.service /etc/systemd/system/a.service.wants/
ln -s ../c.service /etc/systemd/system/b.service.wants/
check_ok a Wants b.service
check_ok b Wants c.service
echo "*** test a wants,requires b"
create_services a b c
ln -s ../b.service /etc/systemd/system/a.service.wants/
ln -s ../b.service /etc/systemd/system/a.service.requires/
check_ok a Wants b.service
check_ok a Requires b.service
echo "*** test a wants nonexistent"
create_service a
ln -s ../nonexistent.service /etc/systemd/system/a.service.wants/
check_ok a Wants nonexistent.service
systemctl start a
systemctl stop a
echo "*** test a requires nonexistent"
ln -sf ../nonexistent.service /etc/systemd/system/a.service.requires/
systemctl daemon-reload
check_ok a Requires nonexistent.service
# 'b' is already loaded when 'c' pulls it in via a dropin.
echo "*** test a,c require b"
create_services a b c
ln -sf ../b.service /etc/systemd/system/a.service.requires/
ln -sf ../b.service /etc/systemd/system/c.service.requires/
systemctl start a
check_ok c Requires b.service
systemctl stop a b
# 'b' is already loaded when 'c' pulls it in via an alias dropin.
echo "*** test a wants alias"
create_services a b c
ln -sf c.service /etc/systemd/system/c1.service
ln -sf ../c.service /etc/systemd/system/a.service.wants/
ln -sf ../c1.service /etc/systemd/system/b.service.wants/
systemctl start a
check_ok a Wants c.service
check_ok b Wants c.service
systemctl stop a c
clear_services a b c
}
test_template_dropins () {
echo "Testing template dropins..."
create_services foo bar@ yup@
ln -s /etc/systemd/system/bar@.service /etc/systemd/system/foo.service.wants/bar@1.service
check_ok foo Wants bar@1.service
clear_services foo bar@ yup@
}
test_alias_dropins () {
echo "Testing alias dropins..."
echo "*** test a wants b1 alias of b"
create_services a b
ln -sf b.service /etc/systemd/system/b1.service
ln -sf ../b1.service /etc/systemd/system/a.service.wants/
check_ok a Wants b.service
systemctl start a
systemctl --quiet is-active b
systemctl stop a b
rm /etc/systemd/system/b1.service
clear_services a b
# A weird behavior: the dependencies for 'a' may vary. It can be
# changed by loading an alias...
#
# [1] 'a1' is loaded and then "renamed" into 'a'. 'a1' is therefore
# part of the names set so all its specific dropins are loaded.
#
# [2] 'a' is already loaded. 'a1' is simply only merged into 'a' so
# none of its dropins are loaded ('y' is missing from the deps).
echo "*** test 2"
create_services a x y
mkdir -p /etc/systemd/system/a1.service.wants/
ln -sf a.service /etc/systemd/system/a1.service
ln -sf ../x.service /etc/systemd/system/a.service.wants/
ln -sf ../y.service /etc/systemd/system/a1.service.wants/
check_ok a1 Wants x.service # see [1]
check_ok a1 Wants y.service
systemctl start a
check_ok a1 Wants x.service # see [2]
check_ko a1 Wants y.service
systemctl stop a x y
rm /etc/systemd/system/a1.service
clear_services a x y
}
test_masked_dropins () {
echo "Testing masked dropins..."
create_services a b
# 'b' is masked for both deps
echo "*** test a wants,requires b is masked"
ln -sf /dev/null /etc/systemd/system/a.service.wants/b.service
ln -sf /dev/null /etc/systemd/system/a.service.requires/b.service
check_ko a Wants b.service
check_ko a Requires b.service
# 'a' wants 'b' and 'b' is masked at a lower level
echo "*** test a wants b, mask override"
ln -sf ../b.service /etc/systemd/system/a.service.wants/b.service
ln -sf /dev/null /usr/lib/systemd/system/a.service.wants/b.service
check_ok a Wants b.service
# 'a' wants 'b' and 'b' is masked at a higher level
echo "*** test a wants b, mask"
ln -sf /dev/null /etc/systemd/system/a.service.wants/b.service
ln -sf ../b.service /usr/lib/systemd/system/a.service.wants/b.service
check_ko a Wants b.service
# 'a' is masked but has an override config file
echo "*** test a is masked but has an override"
create_services a b
ln -sf /dev/null /etc/systemd/system/a.service
cat >/usr/lib/systemd/system/a.service.d/override.conf <<EOF
[Unit]
After=b.service
EOF
check_ok a UnitFileState masked
# 'b1' is an alias for 'b': masking 'b' dep should not influence 'b1' dep
echo "*** test a wants b, b1, and one is masked"
create_services a b
ln -sf b.service /etc/systemd/system/b1.service
ln -sf /dev/null /etc/systemd/system/a.service.wants/b.service
ln -sf ../b1.service /usr/lib/systemd/system/a.service.wants/b1.service
systemctl cat a
systemctl show -p Wants,Requires a
systemctl cat b1
systemctl show -p Wants,Requires b1
check_ok a Wants b.service
check_ko a Wants b1.service # the alias does not show up in the list of units
rm /etc/systemd/system/b1.service
# 'b1' is an alias for 'b': masking 'b1' should not influence 'b' dep
echo "*** test a wants b, alias dep is masked"
create_services a b
ln -sf b.service /etc/systemd/system/b1.service
ln -sf /dev/null /etc/systemd/system/a.service.wants/b1.service
ln -sf ../b.service /usr/lib/systemd/system/a.service.wants/b.service
check_ok a Wants b.service
check_ko a Wants b1.service # the alias does not show up in the list of units
rm /etc/systemd/system/b1.service
# 'a' has Wants=b.service but also has a masking
# dropin 'b': 'b' should still be pulled in.
echo "*** test a wants b both ways"
create_services a b
ln -sf /dev/null /etc/systemd/system/a.service.wants/b.service
cat >/usr/lib/systemd/system/a.service.d/wants-b.conf<<EOF
[Unit]
Wants=b.service
EOF
check_ok a Wants b.service
# mask a dropin that points to an nonexistent unit.
echo "*** test a wants nonexistent is masked"
create_services a
ln -sf /dev/null /etc/systemd/system/a.service.requires/nonexistent.service
ln -sf ../nonexistent.service /usr/lib/systemd/system/a.service.requires/
check_ko a Requires nonexistent.service
# 'b' is already loaded when 'c' pulls it in via a dropin but 'b' is
# masked at a higher level.
echo "*** test a wants b is masked"
create_services a b c
ln -sf ../b.service /etc/systemd/system/a.service.requires/
ln -sf ../b.service /run/systemd/system/c.service.requires/
ln -sf /dev/null /etc/systemd/system/c.service.requires/b.service
systemctl start a
check_ko c Requires b.service
systemctl stop a b
# 'b' is already loaded when 'c' pulls it in via a dropin but 'b' is
# masked at a lower level.
echo "*** test a requires b is masked"
create_services a b c
ln -sf ../b.service /etc/systemd/system/a.service.requires/
ln -sf ../b.service /etc/systemd/system/c.service.requires/
ln -sf /dev/null /run/systemd/system/c.service.requires/b.service
systemctl start a
check_ok c Requires b.service
systemctl stop a b
# 'a' requires 2 aliases of 'b' and one of them is a mask.
echo "*** test a requires alias of b, other alias masked"
create_services a b
ln -sf b.service /etc/systemd/system/b1.service
ln -sf b.service /etc/systemd/system/b2.service
ln -sf /dev/null /etc/systemd/system/a.service.requires/b1.service
ln -sf ../b1.service /run/systemd/system/a.service.requires/
ln -sf ../b2.service /usr/lib/systemd/system/a.service.requires/
check_ok a Requires b
# Same as above but now 'b' is masked.
echo "*** test a requires alias of b, b dep masked"
create_services a b
ln -sf b.service /etc/systemd/system/b1.service
ln -sf b.service /etc/systemd/system/b2.service
ln -sf ../b1.service /run/systemd/system/a.service.requires/
ln -sf ../b2.service /usr/lib/systemd/system/a.service.requires/
ln -sf /dev/null /etc/systemd/system/a.service.requires/b.service
check_ok a Requires b
clear_services a b
}
test_basic_dropins
test_template_dropins
test_alias_dropins
test_masked_dropins
touch /testok