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# Manage a service using daemontools.
#
# Example using a file resource for the run script:
#
# base::daemontools::supervise { 'postfix-k5':
# ensure => present,
# source => 'puppet:///s_mailman/service/postfix-k5/run',
# }
#
# Example using a template for the run script and enabling logging:
#
# base::daemontools::supervise { 'signal':
# ensure => present,
# content => template('base/s_ldap/signal-run.erb'),
# logging => '/var/log/signal',
# logging_mode => '0755',
# }
define base::daemontools::supervise(
$ensure = 'present',
$source = 'NOSRC',
$content = 'NOCONTENT',
$logging = 'NONE',
$logging_mode = '0750'
) {
$svcdir = "/service/$name"
$run = "/service/$name/run"
case $ensure {
absent: {
# Stop the service. We have to first move the service directory
# aside so that svscan doesn't just restart it, then stop the
# service and the supervise process, and finally delete the
# directory.
exec { "remove $svcdir":
command => "mv $svcdir /service/.$name && svc -dx /service/.$name && (if [ -d /service/.$name/log ] ; then svc -dx /service/.$name/log ; fi) && rm -rf /service/.$name",
onlyif => "[ -d $svcdir ]",
}
}
present: {
# Test to make sure that either source or content has been
# specified, but not both.
if ($source == 'NOSRC') and ($content == 'NOCONTENT') {
fail('source or content required')
}
if ($source != 'NOSRC') and ($content != 'NOCONTENT') {
fail('Specify source or content but not both')
}
include base::daemontools
file { "$svcdir":
ensure => directory,
mode => $logging ? { 'NONE' => 755, default => 1755 }
}
file { $run:
source => $content ? {
'NOCONTENT' => $source,
default => undef
},
content => $source ? {
'NOSRC' => $content,
default => undef
},
mode => 755,
notify => Exec["svc -u $svcdir"],
}
# Configure logging if desired.
if $logging != 'NONE' {
file {
"$svcdir/log":
ensure => directory,
mode => 755;
$logging:
ensure => directory,
mode => $logging_mode;
"$svcdir/log/run":
content => template('base/daemontools/log-run.erb'),
mode => 755;
}
}
}
default: { crit "Invalid ensure value: $ensure" }
}
# Start the service
exec { "svc -u $svcdir":
command => "svc -u $svcdir",
refreshonly => true,
}
}