Feat/add sqlserver user (#8)

fix: correct wrong import

---------

Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>

docs/resources/sqlserverflexalpha_instance.md

@@ -0,0 +1,118 @@
+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "stackitprivatepreview_sqlserverflexalpha_instance Resource - stackitprivatepreview"
+subcategory: ""
+description: |-
+  SQLServer Flex ALPHA instance resource schema. Must have a region specified in the provider configuration.
+---
+
+# stackitprivatepreview_sqlserverflexalpha_instance (Resource)
+
+SQLServer Flex ALPHA instance resource schema. Must have a `region` specified in the provider configuration.
+
+## Example Usage
+
+```terraform
+# Copyright (c) STACKIT
+
+resource "stackitprivatepreview_sqlserverflexalpha_instance" "example" {
+  project_id      = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  name            = "example-instance"
+  acl             = ["XXX.XXX.XXX.X/XX", "XX.XXX.XX.X/XX"]
+  backup_schedule = "00 00 * * *"
+  flavor = {
+    cpu = 4
+    ram = 16
+  }
+  storage = {
+    class = "class"
+    size  = 5
+  }
+  version = 2022
+}
+
+# Only use the import statement, if you want to import an existing sqlserverflex instance
+import {
+  to = stackitprivatepreview_sqlserverflexalpha_instance.import-example
+  id = "${var.project_id},${var.region},${var.sql_instance_id}"
+}
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- `encryption` (Attributes) The encryption block. (see [below for nested schema](#nestedatt--encryption))
+- `flavor` (Attributes) (see [below for nested schema](#nestedatt--flavor))
+- `name` (String) Instance name.
+- `network` (Attributes) The network block. (see [below for nested schema](#nestedatt--network))
+- `project_id` (String) STACKIT project ID to which the instance is associated.
+
+### Optional
+
+- `backup_schedule` (String) The backup schedule. Should follow the cron scheduling system format (e.g. "0 0 * * *")
+- `is_deletable` (Boolean)
+- `region` (String) The resource region. If not defined, the provider region is used.
+- `retention_days` (Number)
+- `status` (String)
+- `storage` (Attributes) (see [below for nested schema](#nestedatt--storage))
+- `version` (String)
+
+### Read-Only
+
+- `edition` (String)
+- `id` (String) Terraform's internal resource ID. It is structured as "`project_id`,`region`,`instance_id`".
+- `instance_id` (String) ID of the SQLServer Flex instance.
+- `replicas` (Number)
+
+<a id="nestedatt--encryption"></a>
+### Nested Schema for `encryption`
+
+Required:
+
+- `key_id` (String) STACKIT KMS - Key ID of the encryption key to use.
+- `key_version` (String) STACKIT KMS - Key version to use in the encryption key.
+- `keyring_id` (String)
+- `service_account` (String)
+
+
+<a id="nestedatt--flavor"></a>
+### Nested Schema for `flavor`
+
+Required:
+
+- `cpu` (Number)
+- `node_type` (String)
+- `ram` (Number)
+
+Optional:
+
+- `id` (String)
+
+Read-Only:
+
+- `description` (String)
+
+
+<a id="nestedatt--network"></a>
+### Nested Schema for `network`
+
+Required:
+
+- `access_scope` (String) The access scope of the instance. (e.g. SNA)
+- `acl` (List of String) The Access Control List (ACL) for the SQLServer Flex instance.
+
+Read-Only:
+
+- `instance_address` (String) The returned instance IP address of the SQLServer Flex instance.
+- `router_address` (String) The returned router IP address of the SQLServer Flex instance.
+
+
+<a id="nestedatt--storage"></a>
+### Nested Schema for `storage`
+
+Optional:
+
+- `class` (String)
+- `size` (Number)