Question

我需要找到一个节点的IP，如果有的话。问题是'cluster_nodes.first'没问题，但它没有任何方法，'。ip'不存在，cluster_nodes.first [：ip]也没有找到关于Chef Wiki的任何信息。

cluster_nodes = search(:node, "name:cluster1*")

if cluster_nodes.size > 0
  node[:primary_node] = cluster_nodes.first.ip
else
  node[:primary_node] = ''
end

错误：

[Sat, 01 Sep 2012 10:29:22 +0000] ERROR: Running exception handlers
[Sat, 01 Sep 2012 10:29:22 +0000] FATAL: Saving node information to /var/chef/cache/failed-run-data.json
[Sat, 01 Sep 2012 10:29:22 +0000] ERROR: Exception handlers complete
[Sat, 01 Sep 2012 10:29:22 +0000] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
[Sat, 01 Sep 2012 10:29:22 +0000] FATAL: ArgumentError: Attribute ip is not defined!

Answer 1

haproxy配方它有一个很好的例子，这是从该配方中摘录的片段：

cluster_nodes = search(:node, "name:cluster1*")
member = cluster_nodes.first if cluster_nodes

if cluster_nodes && cluster_nodes.size > 0
  primary_node = begin
    if member.attribute?('cloud')
      if node.attribute?('cloud') && (member['cloud']['provider'] == node['cloud']['provider'])
         member['cloud']['local_ipv4']
      else
        member['cloud']['public_ipv4']
      end
    else
      member['ipaddress']
    end
  end
else
  primary_node = ''
end

它对我有用。第一个节点获取空值，第二个，第三个节点获取IP地址。

如何在Chef配方中动态查找主机的IP

1 个答案: