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