Adds the synthetic monitor target type as an option for uptime checks. (

#8709)

* Adds synthetic_monitor type that lives alongside resource_group and monitored_resource
* removes requirement for either tcp_check or http_check to be provided, as neither is required when synthetic_monitor is provided
* Adds acceptance test, and example. A new test fixutre w/ zip file is provided for these flows.

mmv1/products/monitoring/UptimeCheckConfig.yaml

@@ -56,6 +56,18 @@ examples:
     vars:
       display_name: 'tcp-uptime-check'
       group_display_name: 'uptime-check-group'
+  - !ruby/object:Provider::Terraform::Examples
+    name: 'uptime_check_config_synthetic_monitor'
+    primary_resource_id: 'synthetic_monitor'
+    vars:
+      display_name: 'synthetic_monitor'
+      function_name: 'synthetic_function'
+      zip_path: 'synthetic-fn-source.zip'
+      bucket_name: 'gcf-source'
+    test_env_vars:
+      project_id: :PROJECT_NAME
+    test_vars_overrides:
+      zip_path: '"./test-fixtures/synthetic-fn-source.zip"'
 custom_code: !ruby/object:Provider::Terraform::CustomCode
   constants: templates/terraform/constants/monitoring_uptime_check_config.go.erb
   custom_import: templates/terraform/custom_import/self_link_as_name.erb
@@ -163,9 +175,6 @@ properties:
   - !ruby/object:Api::Type::NestedObject
     name: httpCheck
     description: Contains information needed to make an HTTP or HTTPS check.
-    exactly_one_of:
-      - http_check
-      - tcp_check
     properties:
       - !ruby/object:Api::Type::Enum
         name: requestMethod
@@ -324,9 +333,6 @@ properties:
   - !ruby/object:Api::Type::NestedObject
     name: tcpCheck
     description: Contains information needed to make a TCP check.
-    exactly_one_of:
-      - http_check
-      - tcp_check
     properties:
       - !ruby/object:Api::Type::Integer
         name: port
@@ -342,6 +348,7 @@ properties:
     exactly_one_of:
       - monitored_resource
       - resource_group
+      - synthetic_monitor
     properties:
       - !ruby/object:Api::Type::Enum
         name: resourceType
@@ -379,6 +386,7 @@ properties:
     exactly_one_of:
       - monitored_resource
       - resource_group
+      - synthetic_monitor
     properties:
       - !ruby/object:Api::Type::String
         name: type
@@ -401,3 +409,28 @@ properties:
           Values for all of the labels listed in the associated monitored
           resource descriptor. For example, Compute Engine VM instances use the
           labels "project_id", "instance_id", and "zone".
+  - !ruby/object:Api::Type::NestedObject
+    name: syntheticMonitor
+    immutable: true
+    description:
+      A Synthetic Monitor deployed to a Cloud Functions V2 instance.
+    exactly_one_of:
+      - monitored_resource
+      - resource_group
+      - synthetic_monitor
+    properties:
+      - !ruby/object:Api::Type::NestedObject
+        name: cloudFunctionV2
+        immutable: true
+        required: true
+        description:
+          Target a Synthetic Monitor GCFv2 Instance
+        exactly_one_of:
+          - cloud_function_v2
+        properties:
+          - !ruby/object:Api::Type::String
+            name: name
+            immutable: true
+            required: true
+            description:
+              The fully qualified name of the cloud function resource.

mmv1/templates/terraform/examples/uptime_check_config_synthetic_monitor.tf.erb

@@ -0,0 +1,44 @@
+resource "google_storage_bucket" "bucket" {
+  name     = "<%= ctx[:test_env_vars]["project_id"] %>-<%= ctx[:vars]['bucket_name'] %>"  # Every bucket name must be globally unique
+  location = "US"
+  uniform_bucket_level_access = true
+}
+
+resource "google_storage_bucket_object" "object" {
+  name   = "function-source.zip"
+  bucket = google_storage_bucket.bucket.name
+  source = "<%= ctx[:vars]['zip_path'] %>"  # Add path to the zipped function source code
+}
+
+resource "google_cloudfunctions2_function" "function" {
+  name = "<%= ctx[:vars]['function_name'] %>"
+  location = "us-central1"
+
+  build_config {
+    runtime = "nodejs16"
+    entry_point = "SyntheticFunction"  # Set the entry point 
+    source {
+      storage_source {
+        bucket = google_storage_bucket.bucket.name
+        object = google_storage_bucket_object.object.name
+      }
+    }
+  }
+
+  service_config {
+    max_instance_count  = 1
+    available_memory    = "256M"
+    timeout_seconds     = 60
+  }
+}
+
+resource "google_monitoring_uptime_check_config" "<%= ctx[:primary_resource_id] %>" {
+  display_name = "<%= ctx[:vars]["display_name"] %>"
+  timeout = "60s"
+
+  synthetic_monitor {
+    cloud_function_v2 {
+      name = google_cloudfunctions2_function.function.id
+    }
+  }
+}