terraform kubernetes 提供程序的多行字符串注释

Question

我想设置 Ambassador as an API Gateway for kubernetes using terraform. There are several ways how to configure Ambassador. The recommended way, according to documentation，是通过为路由和暴露在集群外部的每个服务使用 kubernetes 注释。使用 kubernetes yaml 配置可以轻松完成此操作：

kind: Service
apiVersion: v1
metadata:
  name: my-service
  annotations:
    getambassador.io/config: |
      ---
        apiVersion: ambassador/v0
        kind:  Mapping
        name:  my_service_mapping
        prefix: /my-service/
        service: my-service
spec:
  selector:
    app: MyApp
  ports:
  - protocol: TCP
    port: 80
    targetPort: 9376

getambassador.io/config 字段的值以 | 开头表明它是一个多行字符串值。如何使用 Terraform HCL 实现相同的目的？

Answer 1

Terraform 文档包含 section 关于使用 <<EOF your multiline string EOF:

的多行字符串

resource "kubernetes_service" "my-service" {
  "metadata" {
    name = "my-service"
    annotations {
      "getambassador.io/config" = <<EOF
        apiVersion: ambassador/v0
        kind:  Mapping
        name:  my_service_mapping
        prefix: /my-service/
        service: my-service
        EOF
    }
  }
  "spec" {
    selector {
      app = "MyApp"
    }
    port {
      protocol = "TCP"
      port = 80
      target_port = "9376"
    }
  }
}

确保 yaml 配置中没有三重破折号 (---)。 Terraform 错误地解析了它。

terraform kubernetes 提供程序的多行字符串注释

Multiline string annotations for terraform kubernetes provider

yaml

terraform

terraform-provider-kubernetes