resource/aws_synthetics_canrany: Add environment variables to run config

.changelog/23574.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/aws_synthetics_canary: Add optional `environment_variables` to `run_config`.
+```

internal/service/synthetics/canary.go

@@ -114,6 +114,11 @@ func ResourceCanary() *schema.Resource {
 							Type:     schema.TypeBool,
 							Optional: true,
 						},
+						"environment_variables": {
+							Type:     schema.TypeMap,
+							Optional: true,
+							Elem:     &schema.Schema{Type: schema.TypeString},
+						},
 						"memory_in_mb": {
 							Type:     schema.TypeInt,
 							Optional: true,
@@ -385,7 +390,12 @@ func resourceCanaryRead(d *schema.ResourceData, meta interface{}) error {
 		return fmt.Errorf("error setting vpc config: %w", err)
 	}
 
-	if err := d.Set("run_config", flattenCanaryRunConfig(canary.RunConfig)); err != nil {
+	runConfig := &synthetics.CanaryRunConfigInput{}
+	if v, ok := d.GetOk("run_config"); ok {
+		runConfig = expandCanaryRunConfig(v.([]interface{}))
+	}
+
+	if err := d.Set("run_config", flattenCanaryRunConfig(canary.RunConfig, runConfig.EnvironmentVariables)); err != nil {
 		return fmt.Errorf("error setting run config: %w", err)
 	}
 
@@ -703,10 +713,14 @@ func expandCanaryRunConfig(l []interface{}) *synthetics.CanaryRunConfigInput {
 		codeConfig.ActiveTracing = aws.Bool(v)
 	}
 
+	if vars, ok := m["environment_variables"].(map[string]interface{}); ok && len(vars) > 0 {
+		codeConfig.EnvironmentVariables = flex.ExpandStringMap(vars)
+	}
+
 	return codeConfig
 }
 
-func flattenCanaryRunConfig(canaryCodeOut *synthetics.CanaryRunConfigOutput) []interface{} {
+func flattenCanaryRunConfig(canaryCodeOut *synthetics.CanaryRunConfigOutput, envVars map[string]*string) []interface{} {
 	if canaryCodeOut == nil {
 		return []interface{}{}
 	}
@@ -717,6 +731,10 @@ func flattenCanaryRunConfig(canaryCodeOut *synthetics.CanaryRunConfigOutput) []i
 		"active_tracing":     aws.BoolValue(canaryCodeOut.ActiveTracing),
 	}
 
+	if envVars != nil {
+		m["environment_variables"] = aws.StringValueMap(envVars)
+	}
+
 	return []interface{}{m}
 }
 

internal/service/synthetics/canary_test.go

@@ -389,6 +389,49 @@ func TestAccSyntheticsCanary_runTracing(t *testing.T) {
 	})
 }
 
+func TestAccSyntheticsCanary_runEnvironmentVariables(t *testing.T) {
+	var conf synthetics.Canary
+	rName := fmt.Sprintf("tf-acc-test-%s", sdkacctest.RandString(8))
+	resourceName := "aws_synthetics_canary.test"
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:     func() { acctest.PreCheck(t) },
+		ErrorCheck:   acctest.ErrorCheck(t, synthetics.EndpointsID),
+		Providers:    acctest.Providers,
+		CheckDestroy: testAccCheckCanaryDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccCanaryRunEnvVariables1Config(rName),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					testAccCheckCanaryExists(resourceName, &conf),
+					resource.TestCheckResourceAttr(resourceName, "run_config.0.environment_variables.test1", "result1"),
+				),
+			},
+			{
+				ResourceName:            resourceName,
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"zip_file", "start_canary", "run_config.0.environment_variables"},
+			},
+			{
+				Config: testAccCanaryRunEnvVariables2Config(rName),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					testAccCheckCanaryExists(resourceName, &conf),
+					resource.TestCheckResourceAttr(resourceName, "run_config.0.environment_variables.test1", "result1"),
+					resource.TestCheckResourceAttr(resourceName, "run_config.0.environment_variables.test2", "result2"),
+				),
+			},
+			{
+				Config: testAccCanaryBasicConfig(rName),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					testAccCheckCanaryExists(resourceName, &conf),
+					resource.TestCheckNoResourceAttr(resourceName, "run_config.0.environment_variables"),
+				),
+			},
+		},
+	})
+}
+
 func TestAccSyntheticsCanary_vpc(t *testing.T) {
 	if testing.Short() {
 		t.Skip("skipping long-running test in short mode")
@@ -817,6 +860,57 @@ resource "aws_synthetics_canary" "test" {
 `, rName, tracing))
 }
 
+func testAccCanaryRunEnvVariables1Config(rName string) string {
+	return acctest.ConfigCompose(testAccCanaryBaseConfig(rName), fmt.Sprintf(`
+resource "aws_synthetics_canary" "test" {
+  name                 = %[1]q
+  artifact_s3_location = "s3://${aws_s3_bucket.test.bucket}/"
+  execution_role_arn   = aws_iam_role.test.arn
+  handler              = "exports.handler"
+  zip_file             = "test-fixtures/lambdatest.zip"
+  runtime_version      = "syn-nodejs-puppeteer-3.2"
+
+  schedule {
+    expression = "rate(0 minute)"
+  }
+
+  run_config {
+    environment_variables = {
+      test1 = "result1"
+    }
+  }
+
+  depends_on = [aws_iam_role.test, aws_iam_role_policy.test]
+}
+`, rName))
+}
+
+func testAccCanaryRunEnvVariables2Config(rName string) string {
+	return acctest.ConfigCompose(testAccCanaryBaseConfig(rName), fmt.Sprintf(`
+resource "aws_synthetics_canary" "test" {
+  name                 = %[1]q
+  artifact_s3_location = "s3://${aws_s3_bucket.test.bucket}/"
+  execution_role_arn   = aws_iam_role.test.arn
+  handler              = "exports.handler"
+  zip_file             = "test-fixtures/lambdatest.zip"
+  runtime_version      = "syn-nodejs-puppeteer-3.2"
+
+  schedule {
+    expression = "rate(0 minute)"
+  }
+
+  run_config {
+    environment_variables = {
+      test1 = "result1"
+      test2 = "result2"
+    }
+  }
+
+  depends_on = [aws_iam_role.test, aws_iam_role_policy.test]
+}
+`, rName))
+}
+
 func testAccCanaryBasicConfig(rName string) string {
 	return acctest.ConfigCompose(testAccCanaryBaseConfig(rName), fmt.Sprintf(`
 resource "aws_synthetics_canary" "test" {

website/docs/r/synthetics_canary.html.markdown

@@ -73,6 +73,7 @@ The following arguments are optional:
 * `timeout_in_seconds` - (Optional) Number of seconds the canary is allowed to run before it must stop. If you omit this field, the frequency of the canary is used, up to a maximum of 840 (14 minutes).
 * `memory_in_mb` - (Optional) Maximum amount of memory available to the canary while it is running, in MB. The value you specify must be a multiple of 64.
 * `active_tracing` - (Optional) Whether this canary is to use active AWS X-Ray tracing when it runs. You can enable active tracing only for canaries that use version syn-nodejs-2.0 or later for their canary runtime.
+* `environment_variables` - (Optional) Map of environment variables that are accessible from the canary during execution. Please see [AWS Docs](https://docs.aws.amazon.com/lambda/latest/dg/configuration-envvars.html#configuration-envvars-runtime) for variables reserved for Lambda.
 
 ### vpc_config