Question

我让Hiera与puppet / vagrant一起运行。

说我有一个木偶经纪人做了以下

      exec { create-project-database:
    command => 'mysql -u root -e "CREATE DATABASE project_db DEFAULT CHARACTER SET = \'utf8\';"',
    unless  => 'mysql -u root information_schema -e "select * from information_schema.schemata;" | grep "project_db"',
    require => Package[mysql-server],
  }

我想用my "project_db"中的变量替换字符串common.yaml

---
machine_message: 'This is the dev machine!'
codes_path: '/vagrant/code/laravel/'
project_db: 'project_db'

我怎么回事？语法对我来说并不清楚，这样的事情会带来错误：

    command => 'mysql -u root -e "CREATE DATABASE 'hiera('project_db)' DEFAULT CHARACTER SET = \'utf8\';"',

Answer 1

'hiera('project_db)'中的引号存在问题（即您未在括号前关闭，因此hiera('project_db')应该正确）

通常我会在hiera之前声明变量，所以像这样

$DB_NAME = hiera('project_db')
exec { create-project-database:
  command => "mysql -u root -e \"CREATE DATABASE $DB_NAME DEFAULT CHARACTER SET = 'utf8';\"",
  unless  => 'mysql -u root information_schema -e "select * from information_schema.schemata;" | grep "project_db"',
  require => Package[mysql-server],
}

木偶清单脚本中的Hiera变量

1 个答案: