Rudder

bash -x invoke-rc.d rudder-slapd start
+ RUNLEVELHELPER=/sbin/runlevel
+ POLICYHELPER=/usr/sbin/policy-rc.d
+ INITDPREFIX=/etc/init.d/
+ RCDPREFIX=/etc/rc
+ BEQUIET=
+ MODE=
+ ACTION=
+ FALLBACK=
+ NOFALLBACK=
+ FORCE=
+ RETRY=
+ RETURNFAILURE=
+ RC=
+ is_upstart=
+ is_systemd=
+ is_openrc=
+ set +e
+ test 2 -eq 0
+ state=I
+ test 2 -gt 0
+ test I '!=' III
+ case "$1" in
+ case ${state} in
+ verifyparameter rudder-slapd
+ test 1 -eq 0
+ test 1 -ne 1
+ return
+ INITSCRIPTID=rudder-slapd
+ state=II
+ shift
+ test 1 -gt 0
+ test II '!=' III
+ case "$1" in
+ case ${state} in
+ verifyparameter start
+ test 1 -eq 0
+ test 1 -ne 1
+ return
+ ACTION=start
+ state=III
+ shift
+ test 0 -gt 0
+ test III '!=' III
+ case ${ACTION} in
+ unset UPSTART_SESSION
+ which initctl
+ test -d /run/systemd/system
+ is_systemd=1
+ UNIT=rudder-slapd.service
++ /sbin/runlevel
+ RL='N 5'
+ RL=5
+ test x5 = x0
+ test x5 = x6
+ test x5 = x0
+ test x5 = x6
+ test x5 '!=' x
++ xargs
++ ls -d -Q '/etc/rc5.d/S[0-9][0-9]rudder-slapd'
+ SLINK=
++ xargs
++ ls -d -Q '/etc/rc5.d/K[0-9][0-9]rudder-slapd'
+ KLINK=
++ xargs
++ ls -d -Q '/etc/rcS.d/S[0-9][0-9]rudder-slapd'
+ SSLINK=
+ verifyrclink
+ doexit=
+ test 0 -gt 0
+ test x '!=' x
+ return 0
+ RC=
+ case ${ACTION} in
+ testexec
+ test 0 -gt 0
+ return 1
+ testexec
+ test 0 -gt 0
+ return 1
+ testexec
+ test 0 -gt 0
+ return 1
+ RC=101
+ _executable=
+ '[' -n '' ']'
+ '[' -n 1 ']'
+ _executable=1
+ '[' 1 = 1 ']'
+ test x101 = x
+ querypolicy
+ policyaction=start
+ test x101 = x101
+ test start = start
+ policyaction='(start)'
+ test x/usr/sbin/policy-rc.d '!=' x
+ test -x /usr/sbin/policy-rc.d
+ test x101 = x
+ return
+ case ${RC} in
+ test x = xquery
+ '[' -n '' ']'
+ '[' 0 '!=' 0 ']'
+ clean_ldpreload libeatmydata.so
+ local name=libeatmydata.so 'oifs=     
' found=0 tok= nval= 'delim= '
+ '[' '' = '' ']'
+ IFS=' '
+ IFS='     
'
+ '[' 0 = 1 ']'
+ return 0
+ test x '!=' x
+ test 101 -eq 104
+ test 101 -eq 101
+ test x = x
+ test xstart = xstatus
+ RC=0
+ exit 0

There is not rudder-slapd in /etc/rc5.d (but there is a

lrwxrwxrwx   1 root root   16 Mar 22 16:18 S03rudder -> ../init.d/rudder

This is because there is no rc installed.
rc files are installed on rpm based packages but not on dpkg based ones. Why ?

As a workaround (since we don't want to rewrite debian packaging now we can use service instead of invoke-rc.d
There is no obligation to use invoke-rc.d, the only difference with service is that is checks current rcX.d links. Which is not mandatory in our case.