I am confused about the puppet class/define execution ordering.
I wrote a module named 'mysql', manifests follow:
*mysql/manifests/init.pp*
> class mysql($base_dir='/usr/local/mysql') {
> class { 'mysql::install':
> base_dir => $base_dir,
> }
> }
>
*mysql/manifests/install.pp*
> class mysql::install($base_dir) {
> group { 'mysql':
> ensure => present,
> }
> user { 'mysql':
> ensure => present,
> gid => 'mysql',
> shell => '/sbin/nologin',
> managehome => false,
> require => Group['mysql'],
> }
> exec { 'download_mariadb_binary':
> path => '/bin:/usr/bin',
> cwd => '/tmp',
> timeout => 0,
> command => 'curl -OL
> http://mirror.yongbok.net/mariadb/mariadb-5.2.12/kvm-bintar-hardy-amd64/mariadb-5.2.12-Linux-x86_64.tar.gz',
> logoutput => on_failure,
> creates => '/tmp/mariadb-5.2.12-Linux-x86_64.tar.gz',
> require => User['mysql'],
> }
> exec { 'install_mariadb_binary':
> path => '/bin:/usr/bin',
> cwd => '/tmp',
> command => "tar xzfP mariadb-5.2.12-Linux-x86_64.tar.gz && mv
> mariadb-5.2.12-Linux-x86_64 $base_dir",
> logoutput => on_failure,
> creates => "${base_dir}/bin/mysql",
> require => Exec['download_mariadb_binary']
> }
> file { $base_dir:
> ensure => directory,
> require => Exec['install_mariadb_binary'],
> }
> file { "${base_dir}/scripts/start_db.sh":
> ensure => present,
> owner => 'root',
> group => 'root',
> mode => '0755',
> source => 'puppet:///modules/mysql/start_db.sh',
> require => File[$base_dir],
> }
> file { "${base_dir}/scripts/setup_mariadb.sh":
> ensure => present,
> owner => 'root',
> group => 'root',
> mode => '0755',
> source => 'puppet:///modules/mysql/setup_mariadb.sh',
> require => File[$base_dir],
> }
> file { "/tmp/stub_my.cnf":
> ensure => present,
> mode => '0755',
> source => 'puppet:///modules/mysql/stub_my.cnf',
> }
> }
>
*mysql/manifests/instance.pp*
> define mysql::instance(
> $bind_address='127.0.0.1',
> $port='3306',
> $extra_port='3991',
> $base_dir='/usr/local/mysql',
> $data_dir='/var/lib/mysql',
> $root_password
> ) {
> exec { 'create_mysql_instance':
> path => "/bin:/sbin:/usr/bin:/usr/sbin",
> cwd => '/tmp',
> command => "sh ${base_dir}/scripts/setup_mariadb.sh \
> --name=${title} \
> --stub=/tmp/stub_my.cnf \
> --bind=$bind_address \
> --port=$port \
> --extra-port=$extra_port \
> --basedir=$base_dir \
> --datadir=$data_dir \
> --root-password=$root_password",
> logoutput => on_failure,
> creates => "/etc/mysql/my_${instance}.cnf",
> }
> }
>
now I wrote a smoke test like this:
mysql/tests/init.pp
> class { 'mysql':
> base_dir => '/usr/local/mysql'
> }
> mysql::instance { 'test':
> root_password => 'rootpassword'
> }
> Class['mysql'] -> Mysql::Instance['test']
>
When I run this smoke test using `puppet apply --noop
/etc/puppet/modules/mysql/tests/init.pp`, the output log follows:
> notice: /Stage[main]/Mysql::Install/Exec[download_mariadb_binary]/returns:
> executed successfully
> notice: /Stage[main]/Mysql::Install/Exec[install_mariadb_binary]/returns:
> executed successfully
> notice: /File[/usr/local/mysql]/owner: owner changed '1001' to 'root'
> notice: /File[/usr/local/mysql]/group: group changed '1001' to 'root'
> notice: /File[/usr/local/mysql]/seluser: seluser changed 'unconfined_u' to
> 'system_u'
> notice: /File[/usr/local/mysql]/seltype: seltype changed 'user_tmp_t' to
> 'usr_t'
> err:
> /Stage[main]//Node[localhost.localdomain]/Mysql::Instance[test]/Exec[create_mysql_instance]/returns:
>
> change from notrun to 0 failed: sh: /usr/local/mysql/scrip
> ts/setup_mariadb.sh: No such file or directory
>
Why Mysql::Instance['test'] execute before
File["${base}/scripts/setup_mariadb.sh"]
As U see, I have wrote *Class['mysql'] -> Mysql::Instance['test']*,
and when I wrote *Class['mysql::install'] -> Class['mysql'] ->
Mysql::Instance['test']*,
the execution order is right
> notice: /Stage[main]/Mysql::Install/Exec[download_mariadb_binary]/returns:
> current_value notrun, should be 0 (noop)
> notice: /Stage[main]/Mysql::Install/Exec[install_mariadb_binary]/returns:
> current_value notrun, should be 0 (noop)
> notice: /File[/usr/local/mysql]/ensure: current_value absent, should be
> directory (noop)
> notice: /File[/usr/local/mysql/scripts/start_db.sh]/ensure: current_value
> absent, should be file (noop)
> notice: /Stage[main]/Mysql::Install/File[/tmp/stub_my.cnf]/ensure:
> current_value absent, should be file (noop)
> notice: /File[/usr/local/mysql/scripts/setup_mariadb.sh]/ensure:
> current_value absent, should be file (noop)
> notice: Class[Mysql::Install]: Would have triggered 'refresh' from 7 events
> notice:
> /Stage[main]//Mysql::Instance[test]/Exec[create_mysql_instance]/returns:
> current_value notrun, should be 0 (noop)
>
Sorry my bad English, who can help me!
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