hello:
i currently am using Puppet to run some commands in a sequence. there are
two sequences of exec resources. we found that we cannot use require =>
Exec and it does not work at all as expected. here is some sample code.
exec { "exec-AAA":
command => "/bin/true",
returns => 0,
notify => Exec["exec-BBB"],
}
exec { "exec-BBB":
refreshonly => true,
command => "/bin/false",
returns => 0,
notify => Exec["exec-CCC"],
}
exec { "exec-CCC":
refreshonly => true,
command => "/bin/touch /tmp/CCC",
returns => 0,
}
exec { "exec-DDD":
require => Exec["exec-CCC"],
command => "/bin/true",
returns => 0,
notify => Exec["exec-EEE"],
}
exec { "exec-EEE":
refreshonly => true,
command => "/bin/false",
notify => Exec["exec-FFF"],
}
exec { "exec-FFF":
refreshonly => true,
command => "/bin/touch /tmp/FFF",
returns => 0,
}
*ms1:/root/aaron> puppet apply t1.pp*
notice: /Stage[main]//Exec[exec-AAA]/returns: executed successfully
err: /Stage[main]//Exec[exec-BBB]: Failed to call refresh: /bin/false
returned 1 instead of one of [0] at /root/aaron/t1.pp:11
notice: /Stage[main]//Exec[exec-DDD]/returns: executed successfully
err: /Stage[main]//Exec[exec-EEE]: Failed to call refresh: /bin/false
returned 1 instead of one of [0] at /root/aaron/t1.pp:28
notice: Finished catalog run in 0.36 seconds
in the example above, how did Exec["exec-DDD"] run when Exec["exec-CCC"]
did not run and Exec["exec-DDD"] require Exec["exec-CCC"]?
*ms1:/root/aaron> puppet apply --debug t1.pp*
info: Applying configuration version '1349209769'
debug: /Stage[main]//Exec[exec-DDD]/require: requires Exec[exec-CCC]
debug: /Stage[main]//Exec[exec-DDD]/notify: subscribes to Exec[exec-EEE]
debug: /Stage[main]//Exec[exec-BBB]/notify: subscribes to Exec[exec-CCC]
debug: /Stage[main]//Exec[exec-AAA]/notify: subscribes to Exec[exec-BBB]
debug: /Stage[main]//Exec[exec-EEE]/notify: subscribes to Exec[exec-FFF]
debug: /Schedule[never]: Skipping device resources because running on a host
debug: /Schedule[daily]: Skipping device resources because running on a host
debug: /Schedule[monthly]: Skipping device resources because running on a
host
debug: /Schedule[puppet]: Skipping device resources because running on a
host
debug: /Schedule[hourly]: Skipping device resources because running on a
host
debug: /Schedule[weekly]: Skipping device resources because running on a
host
debug: Exec[exec-AAA](provider=posix): Executing '/bin/true'
debug: Executing '/bin/true'
notice: /Stage[main]//Exec[exec-AAA]/returns: executed successfully
debug: /Stage[main]//Exec[exec-AAA]: The container Class[Main] will
propagate my refresh event
info: /Stage[main]//Exec[exec-AAA]: Scheduling refresh of Exec[exec-BBB]
debug: Exec[exec-BBB](provider=posix): Executing '/bin/false'
debug: Executing '/bin/false'
err: /Stage[main]//Exec[exec-BBB]: Failed to call refresh: /bin/false
returned 1 instead of one of [0] at /root/aaron/t1.pp:11
debug: Exec[exec-DDD](provider=posix): Executing '/bin/true'
debug: Executing '/bin/true'
notice: /Stage[main]//Exec[exec-DDD]/returns: executed successfully
debug: /Stage[main]//Exec[exec-DDD]: The container Class[Main] will
propagate my refresh event
info: /Stage[main]//Exec[exec-DDD]: Scheduling refresh of Exec[exec-EEE]
debug: Exec[exec-EEE](provider=posix): Executing '/bin/false'
debug: Executing '/bin/false'
err: /Stage[main]//Exec[exec-EEE]: Failed to call refresh: /bin/false
returned 1 instead of one of [0] at /root/aaron/t1.pp:28
debug: Class[Main]: The container Stage[main] will propagate my refresh
event
debug: Finishing transaction 70054935787440
debug: Storing state
debug: Stored state in 0.06 seconds
notice: Finished catalog run in 0.37 seconds
debug: /File[/var/lib/puppet/rrd]/seluser: Found seluser default 'system_u'
for /var/lib/puppet/rrd
debug: /File[/var/lib/puppet/rrd]/selrole: Found selrole default 'object_r'
for /var/lib/puppet/rrd
debug: /File[/var/lib/puppet/rrd]/seltype: Found seltype default
'puppet_var_lib_t' for /var/lib/puppet/rrd
debug: /File[/var/lib/puppet/rrd]/selrange: Found selrange default 's0' for
/var/lib/puppet/rrd
debug: Finishing transaction 70054934905120
debug: Recieved report to process from ms1
debug: Processing report from ms1 with processor Puppet::Reports::Store
as you can see in the debug run, even though Exec["exec-DDD"] require
Exec["exec-CCC"], and the latter does not run, the former runs. what is
going on here?
thank you for your time.
have a nice day,
Aaron
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