feat(cluster-connection): implement conterpart for cluster connection…

…s api in particular tgw (#115)

* feat(cluster-connection): implement conterpart for cluster connections api

* feat(cluster-connection): add docs

---------

Co-authored-by: Dmitry Kropachev <[email protected]>

CODEOWNERS

@@ -4,3 +4,4 @@
 /internal/provider/cqlauth/        @rjeczalik
 /internal/provider/serverless/     @rjeczalik
 /internal/provider/vpcpeering/     @rjeczalik
+/internal/provider/connection/     @dkropachev @charconstpointer

docs/resources/cluster_connection.md

@@ -0,0 +1,72 @@
+---
+page_title: "scylladbcloud_cluster_connection Resource - terraform-provider-scylladbcloud"
+subcategory: ""
+description: |-
+  
+---
+
+# scylladbcloud_cluster_connection (Resource)
+
+
+
+## Example of AWS Transit Gateway VPC Attachment Cluster Connection
+
+```terraform
+# Create AWS TGW VPC Attachment Connection for the specified cluster.
+
+resource "scylladbcloud_cluster_connection" "aws_tgw" {
+	cluster_id = 1337
+	name       = "aws-tgw-test"
+	cidrlist = ["10.201.0.0/16"]
+	type = "AWS_TGW_ATTACHMENT"
+	datacenter = "AWS_US_EAST_1"
+	data = {
+		tgwid  = "tgw-08461afa1119f390a"
+ 		ramarn = "arn:aws:ram:us-east-1:043400831220:resource-share/be3b0395-1782-47cb-9ae4-6d3517c6a721"
+	}
+}
+
+output "scylladbcloud_cluster_connection_id" {
+	value = scylladbcloud_cluster_connection.aws_tgw.id
+}
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- `cidrlist` (List of String) List of CIDRs to route to the cluster connection
+- `cluster_id` (Number) Cluster ID
+- `data` (Map of String) Connection Data
+- `datacenter` (String) Cluster datacenter name
+- `type` (String) Connection Type
+
+### Optional
+
+- `name` (String) Cluster Connection Name
+- `status` (String) Connection Status
+- `timeouts` (Block, Optional) (see [below for nested schema](#nestedblock--timeouts))
+
+### Read-Only
+
+- `external_id` (String) ID of the cloud resource that represents connection
+- `id` (String) Cluster connection ID
+
+<a id="nestedblock--timeouts"></a>
+### Nested Schema for `timeouts`
+
+Optional:
+
+- `create` (String)
+- `delete` (String)
+- `update` (String)
+
+## Import
+
+Import is supported using the following syntax:
+
+```shell
+# An cluster connection can be imported by specifying the numeric identifier.
+terraform import scylladbcloud_cluster_connection.example 123
+```

examples/resources/scylladbcloud_cluster_connection/aws-tgw-vpc-attachment.tf

@@ -0,0 +1,17 @@
+# Create AWS TGW VPC Attachment Connection for the specified cluster.
+
+resource "scylladbcloud_cluster_connection" "aws_tgw" {
+	cluster_id = 1337
+	name       = "aws-tgw-test"
+	cidrlist = ["10.201.0.0/16"]
+	type = "AWS_TGW_ATTACHMENT"
+	datacenter = "AWS_US_EAST_1"
+	data = {
+		tgwid  = "tgw-08461afa1119f390a"
+ 		ramarn = "arn:aws:ram:us-east-1:043400831220:resource-share/be3b0395-1782-47cb-9ae4-6d3517c6a721"
+	}
+}
+
+output "scylladbcloud_cluster_connection_id" {
+	value = scylladbcloud_cluster_connection.aws_tgw.id
+}

examples/resources/scylladbcloud_cluster_connection/import.sh

@@ -0,0 +1,2 @@
+# An cluster connection can be imported by specifying the numeric identifier.
+terraform import scylladbcloud_cluster_connection.example 123