feat: add gcp_compute_instance_group_manager table (#669)

Co-authored-by: Ved misra <47312748+misraved@users.noreply.github.com>

docs/tables/gcp_compute_instance_group.md

@@ -5,7 +5,7 @@ description: "Allows users to query Google Cloud Compute Engine Instance Groups,
 
 # Table: gcp_compute_instance_group - Query Google Cloud Compute Engine Instance Groups using SQL
 
-Google Cloud Compute Engine Instance Groups are collections of virtual machine (VM) instances that you can manage as a single entity. These groups are ideal for applications that require a lot of computing power and need to scale rapidly to meet demand. They offer a range of features including autoscaling, load balancing, and rolling updates.
+Google Cloud Compute Engine Instance Groups are collections of virtual machine (VM) instances that you can manage as a single entity. When they are managed by Instance Group Managers, these groups are called [Managed Instance Groups (MIG)](https://cloud.google.com/compute/docs/instance-groups#managed_instance_groups), and are ideal for highly available applications that require a lot of computing power and need to scale rapidly to meet demand. They offer a range of features including autoscaling, autohealing, regional (multiple zone) deployment, and automatic updating. Otherwise, these groups are called [Unmanaged Instance Groups](https://cloud.google.com/compute/docs/instance-groups#unmanaged_instance_groups), and can contain heterogeneous instances that you can arbitrarily add and remove from them, but do not offer autoscaling, autohealing, rolling update support, multi-zone support, or the use of instance templates and are not a good fit for deploying highly available and scalable workloads, they can just be used for load balancing.
 
 ## Table Usage Guide
 
@@ -125,4 +125,4 @@ from
 where
   g.network = n.self_link
   and g.subnetwork = s.self_link;
-```
+```

docs/tables/gcp_compute_instance_group_manager.md

@@ -0,0 +1,70 @@
+---
+title: "Steampipe Table: gcp_compute_instance_group_manager - Query Google Cloud Compute Engine Instance Group Managers using SQL"
+description: "Allows users to query Google Cloud Compute Engine Instance Group Managers, providing insights into the configuration, status, and properties of these group managers."
+---
+
+# Table: gcp_compute_instance_group_manager - Query Google Cloud Compute Engine Instance Group Managers using SQL
+
+Google Cloud Compute Engine Instance Group Managers manage [Managed Instance Groups (MIG)](https://cloud.google.com/compute/docs/instance-groups#managed_instance_groups), and are ideal for highly available applications that require a lot of computing power and need to scale rapidly to meet demand. They offer a range of features including autoscaling, autohealing, regional (multiple zone) deployment, and automatic updating.
+
+## Table Usage Guide
+
+The `gcp_compute_instance_group_manager` table provides insights into instance group managers within Google Cloud Compute Engine. As a system administrator, you can explore group-specific details through this table, including configuration, associated instances, and autoscaling policies. Utilize it to monitor the status of your instance groups, manage load balancing, and plan for capacity adjustments.
+
+## Examples
+
+### Basic Info
+Discover the segments of your Google Cloud Platform (GCP) that contain instance group managers, gaining insights into aspects like size and location. This can help in project management and resource allocation within the GCP infrastructure.
+
+```sql+postgres
+select
+  name,
+  description,
+  self_link,
+  instance_group,
+  location,
+  akas,
+  project
+from
+  gcp_compute_instance_group_manager;
+```
+
+```sql+sqlite
+select
+  name,
+  description,
+  self_link,
+  instance_group,
+  location,
+  akas,
+  project
+from
+  gcp_compute_instance_group_manager;
+```
+
+### Get instance group details of each instance group manager
+Get the size of the instance groups managed by instance group managers.
+
+```sql+postgres
+select
+  m.name,
+  g.name as group_name,
+  g.size as group_size
+from
+  gcp_compute_instance_group_manager as m,
+  gcp_compute_instance_group as g
+where
+  m.instance_group ->> 'name' = g.name;
+```
+
+```sql+sqlite
+select
+  m.name,
+  g.name as group_name,
+  g.size as group_size
+from
+  gcp_compute_instance_group_manager as m,
+  gcp_compute_instance_group as g
+where
+  m.instance_group -> 'name' = g.name;
+```

gcp/plugin.go

@@ -74,6 +74,7 @@ func Plugin(ctx context.Context) *plugin.Plugin {
 			"gcp_compute_image":                                       tableGcpComputeImage(ctx),
 			"gcp_compute_instance":                                    tableGcpComputeInstance(ctx),
 			"gcp_compute_instance_group":                              tableGcpComputeInstanceGroup(ctx),
+			"gcp_compute_instance_group_manager":                      tableGcpComputeInstanceGroupManager(ctx),
 			"gcp_compute_instance_metric_cpu_utilization":             tableGcpComputeInstanceMetricCpuUtilization(ctx),
 			"gcp_compute_instance_metric_cpu_utilization_daily":       tableGcpComputeInstanceMetricCpuUtilizationDaily(ctx),
 			"gcp_compute_instance_metric_cpu_utilization_hourly":      tableGcpComputeInstanceMetricCpuUtilizationHourly(ctx),

gcp/table_gcp_compute_instance_group.go

@@ -45,7 +45,7 @@ func tableGcpComputeInstanceGroup(ctx context.Context) *plugin.Table {
 			},
 			{
 				Name:        "fingerprint",
-				Description: "The fingerprint of the named ports.",
+				Description: "The fingerprint of the instance group.",
 				Type:        proto.ColumnType_STRING,
 			},
 			{
@@ -89,7 +89,7 @@ func tableGcpComputeInstanceGroup(ctx context.Context) *plugin.Table {
 			},
 			{
 				Name:        "zone",
-				Description: "URL of the zone where the instance group resides.",
+				Description: "The URL of the zone where the instance group resides.",
 				Type:        proto.ColumnType_STRING,
 			},
 			{
@@ -148,7 +148,6 @@ func tableGcpComputeInstanceGroup(ctx context.Context) *plugin.Table {
 //// LIST FUNCTIONS
 
 func listComputeInstanceGroup(ctx context.Context, d *plugin.QueryData, h *plugin.HydrateData) (interface{}, error) {
-
 	// Max limit is set as per documentation
 	pageSize := types.Int64(500)
 	limit := d.QueryContext.Limit
@@ -159,7 +158,6 @@ func listComputeInstanceGroup(ctx context.Context, d *plugin.QueryData, h *plugi
 	}
 
 	// Get project details
-
 	projectId, err := getProject(ctx, d, h)
 	if err != nil {
 		return nil, err
@@ -202,7 +200,6 @@ func getComputeInstanceGroup(ctx context.Context, d *plugin.QueryData, h *plugin
 	plugin.Logger(ctx).Trace("getComputeInstanceGroup")
 
 	// Get project details
-
 	projectId, err := getProject(ctx, d, h)
 	if err != nil {
 		return nil, err