Question

考虑一下，我有一个变量，它是地图列表的列表。

示例：

    processes = [
      [
       {start_cmd: "a-server-start", attribute2:"type_a"}, 
       {start_cmd: "a-worker-start", attribute2:"type_b"}
       {start_cmd: "a--different-worker-start", attribute2:"type_c"}
      ],
      [
       {start_cmd: "b-server-start", attribute2:"type_a"},
       {start_cmd: "b-worker-start", attribute2:"type_b"}
      ]
    ]

在每次迭代中，我需要取出映射数组，然后遍历该数组并取出映射值。如何在terraform中实现这一目标？

我考虑过要进行两次计数，并做一些算术来欺骗terraform来执行相似的嵌套迭代Check reference here。但是在我们的情况下，内部数组中的映射数可以变化。

此外，我们目前正在使用0.11 terraform版本，但是如果可以在该版本中使用它，则不要介意使用alpha 0.12版本的terraform。

编辑：

添加了如何使用此变量：

resource “create_application” “applications” {
  // Create a resource for every array in the variable processes. 2 in this case
  name        = ""              
  migration_command = "" 

  proc {                
    // For every map create this attribute for the resource.
    name    = ““                
    init_command   = “a-server-start”                   
    type   = “server”                
  }                                    
}

不确定是否可以清除要求。请问是否仍然不清楚。

Answer 1

使用Terraform 0.12.x

locals {
  processes = [
    [
      { start_cmd: "a-server-start", type: "type_a", name: "inglorious bastards" },
      { start_cmd: "a-worker-start", type: "type_b", name: "kill bill" },
      { start_cmd: "a--different-worker-start", type: "type_c", name: "pulp fiction" },
    ],
    [
      { start_cmd: "b-server-start", type: "type_a", name: "inglorious bastards" },
      { start_cmd: "b-worker-start", type: "type_b", name: "kill bill" },
    ]
  ]
}

# just an example
data "archive_file" "applications" {
  count = length(local.processes)

  type = "zip"

  output_path = "applications.zip"

  dynamic "source" {
    for_each = local.processes[count.index]

    content {
      content  = source.value.type
      filename = source.value.name
    }
  }
}

$ terraform apply
data.archive_file.applications[0]: Refreshing state...
data.archive_file.applications[1]: Refreshing state...

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

如果存在create_application资源，则可以这样建模

resource "create_application" "applications" {
  count             = length(local.processes)
  name              = ""
  migration_command = "" 

  dynamic "proc" {
    for_each = local.processes[count.index]

    content {
      name         = proc.value.name
      init_command = proc.value.start_cmd
      type         = proc.value.type
    }
  }
}

遍历terraform中的地图列表

1 个答案: