Terraform Helm Chart 环境变量答案

【问题标题】：Terraform Helm Chart Environment VariablesTerraform Helm Chart 环境变量
【发布时间】：2022-08-17 05:31:35
【问题描述】：

我正在尝试通过 terraform 为我的 Helm Chart 部署设置环境变量。目前我的代码如下所示：

resource \"helm_release\" \"datadog\" {
  name       = \"datadog\"
  repository = \"https://helm.datadoghq.com\"
  chart      = \"datadog\"

  namespace        = \"datadog\"
  create_namespace = true

  # Default Configuration items
  set {
    name  = \"datadog.apiKey\"
    value = var.datadog_api_key
  }

  set {
    name  = \"datadog.appKey\"
    value = var.datadog_app_key
  }

  set {
    name  = \"clusterAgent.enabled\"
    value = true
  }

  set {
    name  = \"targetSystem\"
    value = \"linux\"
  }

  # Set Datadog Configuration Items

  # Event Collection
  set {
    name  = \"agents.rbac.create\"
    value = true
  }

  set {
    name  = \"datadog.leaderElection\"
    value = true
  }

  set {
    name  = \"datadog.collectEvents\"
    value = true
  }

  # Custom/External Metrics
  set {
    name  = \"clusterAgent.metricsProvider.enabled\"
    value = true
  }

  # APM Configuration
  set {
    name  = \"datadog.apm.enabled\"
    value = true
  }

  # Logs Configuration
  set {
    name  = \"datadog.logs.enabled\"
    value = true
  }

  set {
    name  = \"datadog.logs.containerCollectAll\"
    value = true
  }

  set {
    name  = \"datadog.containerExcludeLogs\"
    value = local.exclude_image_list
  }

  # Set logging verbosity, valid log levels are: trace, debug, info, warn, error, critical, off.  Default is info
  set {
    name  = \"datadog.logLevel\"
    value = \"INFO\"
  }

  # Process Collection Configuration
  set {
    name  = \"datadog.processAgent.enabled\"
    value = true
  }

  # Exclude Containers
  set {
    name  = \"datadog.containerExclude\"
    value = local.exclude_image_list
  }

  # Set Environment Variables
  # DD_LOGS_CONFIG_USE_HTTP is for DD AWS PrivateLink: https://docs.datadoghq.com/agent/guide/private-link/?tab=useast1
  set {
    name  = \"env\"
    value = \"{DD_LOGS_CONFIG_USE_HTTP = true}\"
  }
}

请注意底部，我是如何设置的。我尝试将它作为字符串传递，但它不起作用。我也将它设置为一个也不起作用的地图。当我将其设置为地图时，出现以下错误：

╷
│ Error: Incorrect attribute value type
│ 
│   on .terraform/modules/datadog/helm.tf line 104, in resource \"helm_release\" \"datadog\":
│  104:     value = {\"DD_LOGS_CONFIG_USE_HTTP\" = true}
│ 
│ Inappropriate value for attribute \"value\": string required.

这是我要修改的舵图：

https://github.com/DataDog/helm-charts/tree/main/charts/datadog

根据文档，Helm 图表预期类型看起来更像[\"name\"=\"DD_LOGS_CONFIG_USE_HTTP\", \"value\"=\"true\"]，但不确定这是否完全正确。
当我尝试使用@MattSchuchard 时，我得到了这个： range can\'t iterate over [{name=DD_LOGS_CONFIG_USE_HTTP
Terraform 或 Helm API 错误？我假设 Helm 因为类型已转换。
是的，一个掌舵错误。它不喜欢输入的内容并且无法正确迭代该列表
听起来可能很愚蠢，但是您尝试过 value = {\"DD_LOGS_CONFIG_USE_HTTP\" = \"true\"} 吗？

标签： kubernetes terraform kubernetes-helm datadog

【解决方案1】：

这种方式对我有用：

values = [<<YAML
datadog:
  env:
    - name: DD_LOGS_CONFIG_USE_HTTP
      value: "true"
YAML
]

【讨论】：

【解决方案2】：

实际上，env 的值应该是带有键的对象数组（name，value），terraform 允许您在数组元素中定义键，因此您可以分两步完成：

为第一个元素设置键 name 的值

为第一个元素设置键 value 的值

resource "helm_release" "datadog" {
  name       = "datadog"
  repository = "https://helm.datadoghq.com"
  chart      = "datadog"

  namespace        = "datadog"
  create_namespace = true

  # Default Configuration items
  set {
    name  = "datadog.apiKey"
    value = var.datadog_api_key
  }

  set {
    name  = "datadog.appKey"
    value = var.datadog_app_key
  }

  set {
    name  = "clusterAgent.enabled"
    value = true
  }

  set {
    name  = "targetSystem"
    value = "linux"
  }

  # Set Datadog Configuration Items

  # Event Collection
  set {
    name  = "agents.rbac.create"
    value = true
  }

  set {
    name  = "datadog.leaderElection"
    value = true
  }

  set {
    name  = "datadog.collectEvents"
    value = true
  }

  # Custom/External Metrics
  set {
    name  = "clusterAgent.metricsProvider.enabled"
    value = true
  }

  # APM Configuration
  set {
    name  = "datadog.apm.enabled"
    value = true
  }

  # Logs Configuration
  set {
    name  = "datadog.logs.enabled"
    value = true
  }

  set {
    name  = "datadog.logs.containerCollectAll"
    value = true
  }

  set {
    name  = "datadog.containerExcludeLogs"
    value = local.exclude_image_list
  }

  # Set logging verbosity, valid log levels are: trace, debug, info, warn, error, critical, off.  Default is info
  set {
    name  = "datadog.logLevel"
    value = "INFO"
  }

  # Process Collection Configuration
  set {
    name  = "datadog.processAgent.enabled"
    value = true
  }

  # Exclude Containers
  set {
    name  = "datadog.containerExclude"
    value = local.exclude_image_list
  }

  # Set Environment Variables
  # DD_LOGS_CONFIG_USE_HTTP is for DD AWS PrivateLink: https://docs.datadoghq.com/agent/guide/private-link/?tab=useast1
  set {
    name  = "env[0].name"
    value = "DD_LOGS_CONFIG_USE_HTTP"
  }
  set {
    name  = "env[0].value"
    value = "true"
  }
}

【讨论】：