Add support for max pods per node configuration to Composer (beta)

.changelog/4873.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+composer: added field `max_pods_per_node` to resource `google_composer_environment` (beta)
+```

google-beta/resource_composer_environment.go

@@ -192,6 +192,14 @@ func resourceComposerEnvironment() *schema.Resource {
 										DiffSuppressFunc: compareServiceAccountEmailToLink,
 										Description:      `The Google Cloud Platform Service Account to be used by the node VMs. If a service account is not specified, the "default" Compute Engine service account is used. Cannot be updated. If given, note that the service account must have roles/composer.worker for any GCP resources created under the Cloud Composer Environment.`,
 									},
+
+									"max_pods_per_node": {
+										Type:        schema.TypeInt,
+										Computed:    true,
+										Optional:    true,
+										ForceNew:    true,
+										Description: `The maximum pods per node in the GKE cluster allocated during environment creation. Lowering this value reduces IP address consumption by the Cloud Composer Kubernetes cluster. This value can only be set during environment creation, and only if the environment is VPC-Native. The range of possible values is 8-110, and the default is 32.`,
+									},
 									"tags": {
 										Type:     schema.TypeSet,
 										Optional: true,
@@ -913,6 +921,8 @@ func flattenComposerEnvironmentConfigNodeConfig(nodeCfg *composer.NodeConfig) in
 	transformed["disk_size_gb"] = nodeCfg.DiskSizeGb
 	transformed["service_account"] = nodeCfg.ServiceAccount
 	transformed["oauth_scopes"] = flattenComposerEnvironmentConfigNodeConfigOauthScopes(nodeCfg.OauthScopes)
+
+	transformed["max_pods_per_node"] = nodeCfg.MaxPodsPerNode
 	transformed["tags"] = flattenComposerEnvironmentConfigNodeConfigTags(nodeCfg.Tags)
 	transformed["ip_allocation_policy"] = flattenComposerEnvironmentConfigNodeConfigIPAllocationPolicy(nodeCfg.IpAllocationPolicy)
 	return []interface{}{transformed}
@@ -1153,6 +1163,10 @@ func expandComposerEnvironmentConfigNodeConfig(v interface{}, d *schema.Resource
 		transformed.ServiceAccount = transformedServiceAccount
 	}
 
+	if transformedMaxPodsPerNode, ok := original["max_pods_per_node"]; ok {
+		transformed.MaxPodsPerNode = int64(transformedMaxPodsPerNode.(int))
+	}
+
 	var nodeConfigZone string
 	if v, ok := original["zone"]; ok {
 		transformedZone, err := expandComposerEnvironmentZone(v, d, config)

google-beta/resource_composer_environment_test.go

@@ -902,6 +902,11 @@ resource "google_composer_environment" "test" {
 			zone       = "us-central1-a"
 
 			service_account = google_service_account.test.name
+			max_pods_per_node = 33
+			ip_allocation_policy {
+				use_ip_aliases          = true
+				cluster_ipv4_cidr_block = "10.0.0.0/16"
+			}
 		}
 	}
 

google-beta/resource_gke_hub_feature_membership_test.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"testing"
 
-	dcl "github.com/GoogleCloudPlatform/declarative-resource-client-library/dcl"
+	"github.com/GoogleCloudPlatform/declarative-resource-client-library/dcl"
 	gkehub "github.com/GoogleCloudPlatform/declarative-resource-client-library/services/google/gkehub/beta"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"

website/docs/r/composer_environment.html.markdown

@@ -247,6 +247,14 @@ The `node_config` block supports:
   Structure is documented below.
   Cannot be updated.
 
+* `max_pods_per_node` -
+  (Optional, [Beta](https://terraform.io/docs/providers/google/guides/provider_versions.html))
+  The maximum pods per node in the GKE cluster allocated during environment 
+  creation. Lowering this value reduces IP address consumption by the Cloud 
+  Composer Kubernetes cluster. This value can only be set if the environment is VPC-Native. 
+  The range of possible values is 8-110, and the default is 32.
+  Cannot be updated.
+
 The `software_config` block supports:
 
 * `airflow_config_overrides` -