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我正在尝试从 DataDog 提供商创建大量资源。我希望对每个资源进行尽可能少的定义。许多属性都有一些合理的默认值。我很难决定如何处理监控阈值,特别是有些可能是可选的。
resource "datadog_monitor" "monitor" {
for_each = {
faulty_deploy = {
message = "A deployment failed."
name = "Deployment Failure"
query = "someLongQuery"
type = "alert"
thresholds = {critical = "0"}
}
}
message = each.value["message"]
query = each.value["query"]
name = each.value["name"]
type = each.value["type"]
escalation_message = coalesce(each.value["escalation_message"], "")
evaluation_delay = coalesce(each.value["evaluation_delay"], "0")
include_tags = coalesce(each.value["include_tags"],"true")
dynamic "monitor_thresholds" {
for_each = each.value["thresholds"]
iterator = threshold
content {
# Dynamically adding these properties is the issue.
"${threshold.key}" = threshold.value
}
}
# These and more would use coalesce to set defaults.
new_group_delay = "60"
notify_audit = "false"
on_missing_data = "default"
priority = "0"
renotify_interval = "0"
renotify_occurrences = "0"
require_full_window = "false"
tags = []
timeout_h = "0"
}
鉴于某些阈值可能设置也可能不设置,如何以这种方式添加动态属性?它们是否应该始终存在0
或""
可以选择覆盖?
答案1
简而言之,你不能。
但是,您可以monitor_thresholds
在所有情况下包含具有默认值的嵌套架构。给定与问题中列出的相同格式:
monitor_thresholds {
critical = lookup(each.value["thresholds"], "critical", "")
warning = lookup(each.value["thresholds"], "warning", "")
}
该lookup
函数允许缺少密钥,并在缺少密钥时提供默认值。可以使用条件扩展此功能以获得更多可选部分。
monitor_threshold_windows {
recovery_window = lookup(each.value, "threshold_windows", null) != null ? lookup(each.value["threshold_windows"], "recovery_window", "") : ""
}