add image_uri to data source aws_lambda_function

.changelog/21015.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+data source/aws_lambda_function: Add `image_uri` attribute
+```

internal/service/lambda/function_data_source.go

@@ -191,6 +191,10 @@ func DataSourceFunction() *schema.Resource {
 					Type: schema.TypeString,
 				},
 			},
+			"image_uri": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
 		},
 	}
 }
@@ -258,6 +262,10 @@ func dataSourceFunctionRead(d *schema.ResourceData, meta interface{}) error {
 	d.Set("kms_key_arn", function.KMSKeyArn)
 	d.Set("last_modified", function.LastModified)
 
+	if output.Code != nil {
+		d.Set("image_uri", output.Code.ImageUri)
+	}
+
 	if err := d.Set("layers", flattenLayers(function.Layers)); err != nil {
 		return fmt.Errorf("Error setting layers for Lambda Function (%s): %w", d.Id(), err)
 	}

internal/service/lambda/function_data_source_test.go

@@ -206,6 +206,7 @@ func TestAccLambdaFunctionDataSource_image(t *testing.T) {
 				Config: testAccFunctionImageDataSourceConfig(rName, imageLatestID),
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttrPair(dataSourceName, "code_signing_config_arn", resourceName, "code_signing_config_arn"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "image_uri", resourceName, "image_uri"),
 				),
 			},
 		},

website/docs/d/lambda_function.html.markdown

@@ -41,6 +41,7 @@ In addition to all arguments above, the following attributes are exported:
 * `environment` - The Lambda environment's configuration settings.
 * `file_system_config` - The connection settings for an Amazon EFS file system.
 * `handler` - The function entrypoint in your code.
+* `image_uri` - The URI of the container image.
 * `invoke_arn` - The ARN to be used for invoking Lambda Function from API Gateway.
 * `kms_key_arn` - The ARN for the KMS encryption key.
 * `last_modified` - The date this resource was last modified.