ruby - ERB:迭代一个数组并将每个值作为单行字符串的一部分输出

Question

我正在尝试通过遍历来自 puppet 数组的数组来编写 sudoers 文件。

这是我的 puppet 类。它定义了一个数组 oracle_homes

1 class oracle_home {
2   $oracle_homes = split($::oracle_homes, ',')
3   file { '/tmp/oracle_homes':
4     ensure  => file,
5     content => template('oracle/oracle.sudoer.erb'),
6   } 
7 }       
8 
9 require oracle_home

这是 erb 模板。

 1 Defaults    env_keep += "ORACLE_BASE ORACLE_HOME TNS_ADMIN"
 2 
 3 <% @oracle_homes.each do |oracle_home| -%>
 4 Cmnd_Alias SQLPLUS = <%= oracle_home -%>/bin/sqlplus
 5 Cmnd_Alias SRVCTL  = <%= oracle_home -%>/bin/srvctl
 6 Cmnd_Alias VOTEDSK = <%= oracle_home -%>/bin/crsctl query css votedisk
 7 <% end -%>  
 8 
 9 Runas_Alias DB    = oracle, regdb
10 Runas_Alias GRID  = oracle, grid
11 
12 zabbix ALL = (GRID) NOPASSWD: VOTEDSK
13 zabbix ALL = (DB) NOPASSWD: SQLPLUS
14 zabbix ALL = (GRID) NOPASSWD: SRVCTL
15 
16 Defaults:zabbix !authenticate
17 Defaults:zabbix !syslog

从第 3 行到第 6 行，我试图生成 Cmnd_Alias 但输出不是我需要的。

我明白了

 1  Defaults    env_keep += "ORACLE_BASE ORACLE_HOME TNS_ADMIN"
 2  
 3  Cmnd_Alias SQLPLUS = '/opt/oracle/regdb/product/12.1.0.2/dbhome_1'/bin/sqlplus
 4  Cmnd_Alias SRVCTL  = '/opt/oracle/regdb/product/12.1.0.2/dbhome_1'/bin/srvctl
 5  Cmnd_Alias VOTEDSK = '/opt/oracle/regdb/product/12.1.0.2/dbhome_1'/bin/crsctl query css votedisk
 6  Cmnd_Alias SQLPLUS = '/opt/oracle/regdb/product/11.2.0.4/dbhome_1'/bin/sqlplus
 7  Cmnd_Alias SRVCTL  = '/opt/oracle/regdb/product/11.2.0.4/dbhome_1'/bin/srvctl
 8  Cmnd_Alias VOTEDSK = '/opt/oracle/regdb/product/11.2.0.4/dbhome_1'/bin/crsctl query css votedisk
 9  
10  Runas_Alias DB    = oracle, regdb
11  Runas_Alias GRID  = oracle, grid
12  
13  zabbix ALL = (GRID) NOPASSWD: VOTEDSK
14  zabbix ALL = (DB) NOPASSWD: SQLPLUS
15  zabbix ALL = (GRID) NOPASSWD: SRVCTL
16  
17  Defaults:zabbix !authenticate
18  Defaults:zabbix !syslog

如何更改迭代语法以生成类似 Cmnd_Alias 的行

Cmnd_Alias SQLPLUS = /opt/oracle/regdb/product/12.1.0.2/dbhome_1/bin/sqlplus, /opt/oracle/regdb/product/11.2.0.4/dbhome_1/bin/sqlplus
Cmnd_Alias VOTEDSK = /opt/oracle/regdb/product/12.1.0.2/dbhome_1/bin/crsctl query css votedisk, /opt/oracle/regdb/product/11.2.0.4/dbhome_1/bin/crsctl query css votedisk

Answer 1

我会尝试替换

3 <% @oracle_homes.each do |oracle_home| -%>
4 Cmnd_Alias SQLPLUS = <%= oracle_home -%>/bin/sqlplus
5 Cmnd_Alias SRVCTL  = <%= oracle_home -%>/bin/srvctl
6 Cmnd_Alias VOTEDSK = <%= oracle_home -%>/bin/crsctl query css votedisk
7 <% end -%>  

与

Cmnd_Alias SQLPLUS = <%= @oracle_homes.map { |path| "#{path}/bin/sqlplus" }.join(', ') %>
Cmnd_Alias SRVCTL  = <%= @oracle_homes.map { |path| "#{path}/bin/srvctl" }.join(', ') %>
Cmnd_Alias VOTEDSK = <%= @oracle_homes.map { |path| "#{path}/bin/crsctl query css votedisk" }.join(', ') %>