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Add Java and .NET Support (#10)
* add support for java and .net lambda functions * adds java example * adds .net example * formatting * update documentation for .net and java * minor updates to documentation * add comment with option for building dotnet example with arm64 architecture
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‎.gitignore‎

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.terraform.lock.hcl
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build
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target
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bin
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obj
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.DS_Store

‎README.md‎

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@@ -64,6 +64,58 @@ module "lambda-datadog" {
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}
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```
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### .NET
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```
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module "lambda-datadog" {
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source = "DataDog/lambda-datadog/aws"
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version = "1.1.0"
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filename = "example.zip"
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function_name = "example-function"
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role = aws_iam_role.lambda_role.arn
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handler = "Example::Example.Function::Handler"
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runtime = "dotnet8"
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memory_size = 256
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environment_variables = {
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"DD_API_KEY_SECRET_ARN" : "arn:aws:secretsmanager:us-east-1:000000000000:secret:example-secret"
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"DD_ENV" : "dev"
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"DD_SERVICE" : "example-service"
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"DD_SITE": "datadoghq.com"
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"DD_VERSION" : "1.0.0"
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}
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datadog_extension_layer_version = 58
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datadog_dotnet_layer_version = 15
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}
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```
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### Java
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```
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module "lambda-datadog" {
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source = "DataDog/lambda-datadog/aws"
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version = "1.1.0"
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filename = "example.jar"
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function_name = "example-function"
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role = aws_iam_role.lambda_role.arn
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handler = "com.example.Handler"
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runtime = "java21"
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memory_size = 1024
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environment_variables = {
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"DD_API_KEY_SECRET_ARN" : "arn:aws:secretsmanager:us-east-1:000000000000:secret:example-secret"
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"DD_ENV" : "dev"
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"DD_SERVICE" : "example-service"
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"DD_SITE": "datadoghq.com"
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"DD_VERSION" : "1.0.0"
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}
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datadog_extension_layer_version = 58
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datadog_java_layer_version = 14
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}
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```
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## Configuration
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### Lambda Function
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variables = {
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"DD_API_KEY_SECRET_ARN" : "arn:aws:secretsmanager:us-east-1:000000000000:secret:example-secret"
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"DD_ENV" : "dev"
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"DD_SITE": "datadoghq.com"
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"DD_SERVICE" : "example-service"
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"DD_VERSION" : "1.0.0"
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}
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#### Datadog Terraform module for AWS Lambda
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```
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module "example_lambda_function" {
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source = "Datadog/lambda-datadog/aws"
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module "lambda-datadog" {
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source = "DataDog/lambda-datadog/aws"
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version = "1.1.0"
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function_name = "example-function"
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...
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environment_variables = {
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"DD_API_KEY_SECRET_ARN" : "arn:aws:secretsmanager:us-east-1:000000000000:secret:example-secret"
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"DD_ENV" : "dev"
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"DD_SITE": "datadoghq.com"
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"DD_SERVICE" : "example-service"
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"DD_VERSION" : "1.0.0"
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}
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| Variable | Description |
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| -------- | ----------- |
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| `datadog_extension_layer_version` | Version of the [Datadog Lambda Extension layer](https://github.com/DataDog/datadog-lambda-extension/releases) to install |
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| `datadog_dotnet_layer_version` | Version of the [Datadog .NET Lambda layer](https://github.com/DataDog/dd-trace-dotnet-aws-lambda-layer/releases) to install |
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| `datadog_java_layer_version` | Version of the [Datadog Java Lambda layer](https://github.com/DataDog/datadog-lambda-java/releases) to install |
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| `datadog_node_layer_version` | Version of the [Datadog Node Lambda layer](https://github.com/DataDog/datadog-lambda-js/releases) to install |
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| `datadog_python_layer_version` | Version of the [Datadog Python Lambda layer](https://github.com/DataDog/datadog-lambda-python/releases) to install |
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* [Serverless Agent Configuration](https://docs.datadoghq.com/serverless/guide/agent_configuration/)
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* Tracer Configuration
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- [.NET](https://docs.datadoghq.com/tracing/trace_collection/library_config/dotnet-framework/?tab=environmentvariables)
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- [Java](https://docs.datadoghq.com/tracing/trace_collection/library_config/java/)
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- [Node](https://github.com/DataDog/datadog-lambda-js?tab=readme-ov-file#configuration)
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- [Python](https://github.com/DataDog/datadog-lambda-python?tab=readme-ov-file#configuration)
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| <a name="input_architectures"></a> [architectures](#input\_architectures) | Instruction set architecture for your Lambda function. Valid values are ["x86\_64"] and ["arm64"]. | `list(string)` | <pre>["x86_64"]</pre> | no |
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| <a name="input_code_signing_config_arn"></a> [code\_signing\_config\_arn](#input\_code\_signing\_config\_arn) | To enable code signing for this function, specify the ARN of a code-signing configuration. A code-signing configuration includes a set of signing profiles, which define the trusted publishers for this function. | `string` | `null` | no |
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| <a name="input_datadog_extension_layer_version"></a> [datadog\_extension\_layer\_version](#input\_datadog\_extension\_layer\_version) | Version for the Datadog Extension Layer | `number` | `58` | no |
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| <a name="input_datadog_dotnet_layer_version"></a> [datadog\_dotnet\_layer\_version](#input\_datadog\_dotnet\_layer\_version) | Version for the Datadog .NET Layer | `number` | `15` | no |
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| <a name="input_datadog_java_layer_version"></a> [datadog\_java\_layer\_version](#input\_datadog\_java\_layer\_version) | Version for the Datadog Java Layer | `number` | `14` | no |
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| <a name="input_datadog_node_layer_version"></a> [datadog\_node\_layer\_version](#input\_datadog\_node\_layer\_version) | Version for the Datadog Node Layer | `number` | `112` | no |
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| <a name="input_datadog_python_layer_version"></a> [datadog\_python\_layer\_version](#input\_datadog\_python\_layer\_version) | Version for the Datadog Python Layer | `number` | `95` | no |
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| <a name="input_dead_letter_config_target_arn"></a> [dead\_letter\_config\_target\_arn](#input\_dead\_letter\_config\_target\_arn) | ARN of an SNS topic or SQS queue to notify when an invocation fails. | `string` | `null` | no |

‎examples/dotnet/README.md‎

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# .NET Example
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A simple .NET Lambda function with out of the box Datadog instrumentation.
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## Usage
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* Create a [Datadog API Key](https://app.datadoghq.com/organization-settings/api-keys)
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* Create a secret in [AWS Secrets Manager](https://docs.aws.amazon.com/secretsmanager/latest/userguide/intro.html) and add the Datadog API Key as the secret value in plaintext
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* Create a `terraform.tfvars` file
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- Set the `datadog_secret_arn` to the arn of the secret you just created
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- Set the `datadog_service_name` to the name of the service you want to use to filter for the resource in Datadog
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- Set the `datadog_site` to the [Datadog destination site](https://docs.datadoghq.com/getting_started/site/) for your metrics, traces, and logs
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* Run the following commands
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```
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dotnet restore ./src/HelloWorld
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dotnet lambda package --configuration Debug --framework net8.0 --output-package src/HelloWorld/bin/release/net8.0/hello-dotnet.zip --project-location ./src/HelloWorld
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terraform init
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terraform plan
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terraform apply
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```
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If using `arm64` architecture then build the lambda package with the `-farch arm64` argument.
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<!-- BEGIN_TF_DOCS -->
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## Requirements
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| Name | Version |
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|------|---------|
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| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.3 |
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| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.32.0 |
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## Providers
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| Name | Version |
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|------|---------|
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| <a name="provider_archive"></a> [archive](#provider\_archive) | 2.4.2 |
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| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.32.0 |
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## Modules
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| Name | Source | Version |
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|------|--------|---------|
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| <a name="module_lambda-datadog"></a> [lambda-datadog](#module\_lambda-datadog) | ../../ | n/a |
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## Resources
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| Name | Type |
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|------|------|
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| [aws_iam_policy.secrets_manager_read_policy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
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| [aws_iam_role.lambda_role](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource |
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| [aws_iam_role_policy_attachment.attach_iam_policy_to_iam_role](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy_attachment) | resource |
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| [aws_iam_role_policy_attachment.attach_secrets_manager_policy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy_attachment) | resource |
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| [archive_file.zip_code](https://registry.terraform.io/providers/hashicorp/archive/latest/docs/data-sources/file) | data source |
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## Inputs
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| Name | Description | Type | Default | Required |
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|------|-------------|------|---------|:--------:|
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| <a name="input_datadog_secret_arn"></a> [datadog\_secret\_arn](#input\_datadog\_secret\_arn) | Secret for Datadog API Key | `string` | n/a | yes |
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| <a name="input_datadog_service_name"></a> [datadog\_service\_name](#input\_datadog\_service\_name) | Service used to filter for resources in Datadog | `string` | n/a | yes |
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| <a name="input_datadog_site"></a> [datadog\_site](#input\_datadog\_site) | Destination site for your metrics, traces, and logs | `string` | n/a | yes |
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## Outputs
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| Name | Description |
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|------|-------------|
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| <a name="output_arn"></a> [arn](#output\_arn) | Amazon Resource Name (ARN) identifying your Lambda Function. |
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| <a name="output_function_name"></a> [function\_name](#output\_function\_name) | Unique name for your Lambda Function |
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| <a name="output_invoke_arn"></a> [invoke\_arn](#output\_invoke\_arn) | ARN to be used for invoking Lambda Function from API Gateway. |
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<!-- END_TF_DOCS -->

‎examples/dotnet/main.tf‎

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resource "aws_iam_role" "lambda_role" {
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name = "terraform-example-dotnet-${var.datadog_service_name}-role"
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assume_role_policy = jsonencode(
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{
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"Version" : "2012-10-17",
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"Statement" : [
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{
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"Sid" : "",
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"Effect" : "Allow",
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"Action" : "sts:AssumeRole",
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"Principal" : {
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"Service" : "lambda.amazonaws.com"
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}
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}
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]
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})
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}
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resource "aws_iam_policy" "secrets_manager_read_policy" {
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name = "terraform-example-dotnet-${var.datadog_service_name}-secrets-manager-policy"
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description = "Policy to allow read access to Secrets Manager"
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policy = jsonencode({
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Version = "2012-10-17"
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Statement = [
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{
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Sid = "ReadSecret"
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Effect = "Allow"
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Action = "secretsmanager:GetSecretValue"
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Resource = var.datadog_secret_arn
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}
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]
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})
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}
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resource "aws_iam_role_policy_attachment" "attach_iam_policy_to_iam_role" {
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role = aws_iam_role.lambda_role.name
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policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
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}
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resource "aws_iam_role_policy_attachment" "attach_secrets_manager_policy" {
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role = aws_iam_role.lambda_role.name
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policy_arn = aws_iam_policy.secrets_manager_read_policy.arn
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}
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module "lambda-datadog" {
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source = "../../"
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filename = "${path.module}/src/HelloWorld/bin/release/net8.0/hello-dotnet.zip"
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source_code_hash = filebase64sha256("${path.module}/src/HelloWorld/bin/release/net8.0/hello-dotnet.zip")
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function_name = "terraform-example-dotnet-${var.datadog_service_name}-function"
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role = aws_iam_role.lambda_role.arn
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handler = "HelloWorld::HelloWorld.Function::Handler"
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runtime = "dotnet8"
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memory_size = 256
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environment_variables = {
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"DD_API_KEY_SECRET_ARN" : var.datadog_secret_arn
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"DD_ENV" : "dev"
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"DD_SERVICE" : var.datadog_service_name
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"DD_SITE" : var.datadog_site
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"DD_VERSION" : "1.0.0"
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}
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}

‎examples/dotnet/outputs.tf‎

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output "arn" {
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description = "Amazon Resource Name (ARN) identifying your Lambda Function."
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value = module.lambda-datadog.arn
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}
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output "invoke_arn" {
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description = "ARN to be used for invoking Lambda Function from API Gateway."
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value = module.lambda-datadog.invoke_arn
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}
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output "function_name" {
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description = "Unique name for your Lambda Function"
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value = module.lambda-datadog.function_name
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}

‎examples/dotnet/src/HelloWorld/Function.cs‎

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using Amazon.Lambda.Core;
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[assembly: LambdaSerializer(typeof(Amazon.Lambda.Serialization.Json.JsonSerializer))]
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namespace HelloWorld
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{
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public class Function
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{
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public string Handler(object input, ILambdaContext context)
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{
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return "Hello!";
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}
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}
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}

‎examples/dotnet/src/HelloWorld/HelloWorld.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
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<AWSProjectType>Lambda</AWSProjectType>
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<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Amazon.Lambda.Core" Version="2.2.0" />
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<PackageReference Include="Amazon.Lambda.Serialization.Json" Version="2.2.1" />
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</ItemGroup>
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</Project>

‎examples/dotnet/variables.tf‎

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variable "datadog_secret_arn" {
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description = "Secret for Datadog API Key"
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type = string
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}
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variable "datadog_service_name" {
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description = "Service used to filter for resources in Datadog"
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type = string
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}
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variable "datadog_site" {
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description = "Destination site for your metrics, traces, and logs"
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type = string
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}

‎examples/dotnet/versions.tf‎

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terraform {
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required_version = ">= 1.3"
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required_providers {
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aws = {
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source = "hashicorp/aws"
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version = ">= 5.32.0"
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}
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}
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}

‎examples/java/README.md‎

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# Java Example
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A simple Java Lambda function with out of the box Datadog instrumentation.
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## Usage
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* Create a [Datadog API Key](https://app.datadoghq.com/organization-settings/api-keys)
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* Create a secret in [AWS Secrets Manager](https://docs.aws.amazon.com/secretsmanager/latest/userguide/intro.html) and add the Datadog API Key as the secret value in plaintext
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* Create a `terraform.tfvars` file
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- Set the `datadog_secret_arn` to the arn of the secret you just created
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- Set the `datadog_service_name` to the name of the service you want to use to filter for the resource in Datadog
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- Set the `datadog_site` to the [Datadog destination site](https://docs.datadoghq.com/getting_started/site/) for your metrics, traces, and logs
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* Run the following commands
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```
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mvn clean package shade:shade
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terraform init
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terraform plan
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terraform apply
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```
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<!-- BEGIN_TF_DOCS -->
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## Requirements
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| Name | Version |
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|------|---------|
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| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.3 |
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| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.32.0 |
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## Providers
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| Name | Version |
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|------|---------|
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| <a name="provider_archive"></a> [archive](#provider\_archive) | 2.4.2 |
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| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.32.0 |
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## Modules
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| Name | Source | Version |
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|------|--------|---------|
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| <a name="module_lambda-datadog"></a> [lambda-datadog](#module\_lambda-datadog) | ../../ | n/a |
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## Resources
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| Name | Type |
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|------|------|
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| [aws_iam_policy.secrets_manager_read_policy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
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| [aws_iam_role.lambda_role](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource |
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| [aws_iam_role_policy_attachment.attach_iam_policy_to_iam_role](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy_attachment) | resource |
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| [aws_iam_role_policy_attachment.attach_secrets_manager_policy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy_attachment) | resource |
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| [archive_file.zip_code](https://registry.terraform.io/providers/hashicorp/archive/latest/docs/data-sources/file) | data source |
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## Inputs
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| Name | Description | Type | Default | Required |
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|------|-------------|------|---------|:--------:|
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| <a name="input_datadog_secret_arn"></a> [datadog\_secret\_arn](#input\_datadog\_secret\_arn) | Secret for Datadog API Key | `string` | n/a | yes |
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| <a name="input_datadog_service_name"></a> [datadog\_service\_name](#input\_datadog\_service\_name) | Service used to filter for resources in Datadog | `string` | n/a | yes |
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| <a name="input_datadog_site"></a> [datadog\_site](#input\_datadog\_site) | Destination site for your metrics, traces, and logs | `string` | n/a | yes |
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## Outputs
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| Name | Description |
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|------|-------------|
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| <a name="output_arn"></a> [arn](#output\_arn) | Amazon Resource Name (ARN) identifying your Lambda Function. |
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| <a name="output_function_name"></a> [function\_name](#output\_function\_name) | Unique name for your Lambda Function |
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| <a name="output_invoke_arn"></a> [invoke\_arn](#output\_invoke\_arn) | ARN to be used for invoking Lambda Function from API Gateway. |
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<!-- END_TF_DOCS -->

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