我正在puppet中使用.erb来管理apacheflume配置文件(flume将把原木运送到elasticsearch，以便在kibana中进行搜索和排序。）
一些背景知识：它从一个名为logpath的自定义事实真相生成器获取这些信息，它将我的日志路径保持为以下格式：

>MysqlBlah;/var/logs/mysql/error.log:/var/logs/mysql/slow_query.log
>TomcatBlah;/var/logs/tomcat/catalina.out:/var/logs/tomcat/error.log

因此，每个服务都以一个>开头，日志列表以一个；，日志路径用一个分隔符分隔。
我想让我的erb读取它，遍历每个日志文件，得到可以放入flume配置文件的文本。
所有这些似乎都没问题，但我遇到了一个无法追踪的错误：

-:58: syntax error, unexpected $end, expecting ')'

我似乎没有任何未闭合的括号，所以我不知道如何寻找是什么原因造成这一点。
编辑1：
根据@daiku，我在所有变量周围添加了双引号，现在它正在通过语法检查。但是，puppet现在出现以下错误：

Could not find value for 'sourcenamelist'

这是范围问题吗？在 %> ?
编辑2：
我应该看看电话号码的。事实证明，我可以按原来的方式插入变量，导致问题的行号是我附加到列表中的行号（这很有意义，因为我在开始附加到列表之前没有声明该变量）。我现在回到正轨了；一旦我解决了剩下的bug，我就会发布完成的代码。
我的代码如下：

<%

# split on > to get each service

services = @logpaths.split(">")
services.each do |serviceline| 

# split on semicolon

service = serviceline.split(";")
servicename = service[0]

# split into logs on colon

logs = service[1].string.split(":")
lognumber = 0
logs.each do |log|

# sourcelist is a space-delimited list of names for each logfile (eg mysql3311-1)

lognumber += 1
sourcename = servicename + "-" + lognumber.to_s + " "
sourcenamelist << sourcename    

# sourceconfigs assigns each source to channel, exec path

sourceconfig = "a1.sources.#{sourcename}.type = exec\na1.sources.#{sourcename}.command = tail -F #{log}\na1.sources.#{sourcename}.channels = c1"
sourceconfiglist << sourceconfig

# sourceinterceptors appends sourcename, path, and servicename (you know, for search)

sourceinterceptors = "a1.sources.#{sourcename}.interceptors = i1 i2 i3 i4\na1.sources.#{sourcename}.interceptors.i1.type = timestamp"
sourceinterceptorlist << sourceinterceptors
end
end 
-%>

# Name the components on this agent

a1.sources = <%= #{sourcenamelist} -%>
a1.sinks = k1
a1.channels = c1

# Describe/configure the source

<%= #{sourceconfiglist} -%>

# Describe the sink

a1.sinks.k1.type = elasticsearch
a1.sinks.k1.hostNames = (my elasticsearch host):9300
a1.sinks.k1.indexName = flume
a1.sinks.k1.indexType = flume_logs
a1.sinks.k1.clusterName = elasticsearch
a1.sinks.k1.batchSize = 1000
a1.sinks.k1.ttl = 2
a1.sinks.k1.serializer = org.apache.flume.sink.elasticsearch.ElasticSearchLogStashEventSerializer

# Use a channel which buffers events in memory

a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel

a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

# interceptor

<%= #{sourceinterceptorlist} -%>