Configure java runtime in the sample apps (#1276)

* Configure java runtime in the sample apps

* Update readme

Author: vasireddy99

java/sample-apps/aws-sdk/README.md

@@ -24,6 +24,14 @@ terraform init
 terraform apply
 ```
 
+Use the following command to configure runtime and architecture
+
+```
+TF_VAR_architecture=x86_64 \
+TF_VAR_runtime=java11 \
+terraform apply -auto-approve
+```
+
 For the agent version, to change the configuration of the OpenTelemetry collector, you can provide the ARN of a Lambda layer with a custom collector configuration in a file named `config.yaml` when prompted after running the `terraform apply` command. 
 
 After deployment, a URL which can be used to invoke the function via API Gateway will be displayed. The agent version

java/sample-apps/aws-sdk/deploy/agent/main.tf

@@ -5,7 +5,7 @@ module "hello-lambda-function" {
   architectures = compact([var.architecture])
   function_name = var.name
   handler       = "io.opentelemetry.lambda.sampleapps.awssdk.AwsSdkRequestHandler::handleRequest"
-  runtime       = "java11"
+  runtime       = var.runtime
 
   create_package         = false
   local_existing_package = "${path.module}/../../build/libs/aws-sdk-all.jar"

java/sample-apps/aws-sdk/deploy/agent/variables.tf

@@ -32,3 +32,9 @@ variable "architecture" {
   description = "Lambda function architecture, valid values are arm64 or x86_64"
   default     = "x86_64"
 }
+
+variable "runtime" {
+  type        = string
+  description = "java agent runtime used for sample Lambda Function"
+  default     = "java11"
+}

java/sample-apps/aws-sdk/deploy/wrapper/main.tf

@@ -5,7 +5,7 @@ module "hello-lambda-function" {
   architectures = compact([var.architecture])
   function_name = var.name
   handler       = "io.opentelemetry.lambda.sampleapps.awssdk.AwsSdkRequestHandler::handleRequest"
-  runtime       = "java11"
+  runtime       = var.runtime
 
   create_package         = false
   local_existing_package = "${path.module}/../../build/libs/aws-sdk-all.jar"

java/sample-apps/aws-sdk/deploy/wrapper/variables.tf

@@ -27,3 +27,9 @@ variable "architecture" {
   description = "Lambda function architecture, valid values are arm64 or x86_64"
   default     = "x86_64"
 }
+
+variable "runtime" {
+  type        = string
+  description = "java wrapper runtime used for sample Lambda Function"
+  default     = "java11"
+}

java/sample-apps/okhttp/README.md

@@ -36,6 +36,14 @@ terraform init
 terraform apply
 ```
 
+Use the following command to configure runtime and architecture
+
+```
+TF_VAR_architecture=x86_64 \
+TF_VAR_runtime=java11 \
+terraform apply -auto-approve
+```
+
 After deployment, a URL which can be used to invoke the function via API Gateway will be displayed. As it uses the 
 wrapper, it tends to take 5-10s. Confirm that spans are logged in the CloudWatch logs for the function on the AWS Console for the
 [wrapper](https://console.aws.amazon.com/cloudwatch/home?region=us-east-1#logsV2:log-groups/log-group/$252Faws$252Flambda$252Fhello-awssdk-java-wrapper).n

java/sample-apps/okhttp/deploy/wrapper/main.tf

@@ -5,7 +5,7 @@ module "hello-lambda-function" {
   architectures = compact([var.architecture])
   function_name = var.name
   handler       = "io.opentelemetry.lambda.sampleapps.okhttp.OkHttpRequestHandler::handleRequest"
-  runtime       = "java11"
+  runtime       = var.runtime
 
   create_package         = false
   local_existing_package = "${path.module}/../../build/libs/okhttp-all.jar"

java/sample-apps/okhttp/deploy/wrapper/variables.tf

@@ -27,3 +27,9 @@ variable "architecture" {
   description = "Lambda function architecture, valid values are arm64 or x86_64"
   default     = "x86_64"
 }
+
+variable "runtime" {
+  type        = string
+  description = "java runtime used for sample Lambda Function"
+  default     = "java11"
+}

java/sample-apps/sqs/README.md

@@ -23,6 +23,14 @@ terraform init
 terraform apply
 ```
 
+Use the following command to configure runtime and architecture
+
+```
+TF_VAR_architecture=x86_64 \
+TF_VAR_runtime=java11 \
+terraform apply -auto-approve
+```
+
 For the agent version, to change the configuration of the OpenTelemetry collector, you can provide the ARN of a Lambda layer with a custom collector configuration in a file named `config.yaml` when prompted after running the `terraform apply` command.
 
 After deployment, login to AWS and test the Lambda function using the predefined SQS test payload. The agent version tends to take 10-20s for the first request, while the wrapper version tends to take 5-10s. Confirm

java/sample-apps/sqs/deploy/agent/main.tf

@@ -5,7 +5,7 @@ module "hello-lambda-function" {
   architectures = compact([var.architecture])
   function_name = var.name
   handler       = "io.opentelemetry.lambda.sampleapps.sqs.SqsRequestHandler::handleRequest"
-  runtime       = "java11"
+  runtime       = var.runtime
 
   create_package         = false
   local_existing_package = "${path.module}/../../build/libs/sqs-all.jar"

java/sample-apps/sqs/deploy/agent/variables.tf

@@ -38,3 +38,9 @@ variable "architecture" {
 #   type        = string
 #   description = "ARN for the SQS queue to use an event source for the Lambda"
 # }
+
+variable "runtime" {
+  type        = string
+  description = "java runtime used for sample Lambda Function"
+  default     = "java11"
+}

java/sample-apps/sqs/deploy/wrapper/main.tf

@@ -5,7 +5,7 @@ module "hello-lambda-function" {
   architectures = compact([var.architecture])
   function_name = var.name
   handler       = "io.opentelemetry.lambda.sampleapps.sqs.SqsRequestHandler::handleRequest"
-  runtime       = "java11"
+  runtime       = var.runtime
 
   create_package         = false
   local_existing_package = "${path.module}/../../build/libs/sqs-all.jar"

java/sample-apps/sqs/deploy/wrapper/variables.tf

@@ -33,3 +33,9 @@ variable "architecture" {
 #   type        = string
 #   description = "ARN for the SQS queue to use an event source for the Lambda"
 # }
+
+variable "runtime" {
+  type        = string
+  description = "java runtime used for sample Lambda Function"
+  default     = "java11"
+}