diff --git a/.gitignore b/.gitignore
index b4f2a01..2098ce8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 .terraform
 *.auto.tfvars
+*.tfstate
+*.tfstate.backup
diff --git a/terraform.tfstate b/terraform.tfstate
deleted file mode 100644
index bdcf237..0000000
--- a/terraform.tfstate
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "version": 4,
-  "terraform_version": "0.12.24",
-  "serial": 26,
-  "lineage": "0f8651e8-593e-1889-aef1-d79f69de7a9a",
-  "outputs": {
-    "ansible_inventory": {
-      "value": {
-        "all": {
-          "children": {
-            "controllers": {
-              "hosts": {
-                "controller.testing.thengo.net": {}
-              }
-            },
-            "provider_hetzner": {
-              "hosts": {
-                "controller.testing.thengo.net": {
-                  "ansible_host": "116.203.152.103",
-                  "external_ip": "116.203.152.103"
-                }
-              }
-            }
-          },
-          "hosts": {
-            "controller.testing.thengo.net": {}
-          }
-        }
-      },
-      "type": [
-        "object",
-        {
-          "all": [
-            "object",
-            {
-              "children": [
-                "object",
-                {
-                  "controllers": [
-                    "object",
-                    {
-                      "hosts": [
-                        "object",
-                        {
-                          "controller.testing.thengo.net": [
-                            "object",
-                            {}
-                          ]
-                        }
-                      ]
-                    }
-                  ],
-                  "provider_hetzner": [
-                    "object",
-                    {
-                      "hosts": [
-                        "object",
-                        {
-                          "controller.testing.thengo.net": [
-                            "object",
-                            {
-                              "ansible_host": "string",
-                              "external_ip": "string"
-                            }
-                          ]
-                        }
-                      ]
-                    }
-                  ]
-                }
-              ],
-              "hosts": [
-                "object",
-                {
-                  "controller.testing.thengo.net": [
-                    "object",
-                    {}
-                  ]
-                }
-              ]
-            }
-          ]
-        }
-      ]
-    }
-  },
-  "resources": [
-    {
-      "mode": "managed",
-      "type": "hcloud_server",
-      "name": "vms",
-      "each": "map",
-      "provider": "provider.hcloud",
-      "instances": [
-        {
-          "index_key": "controller.testing.thengo.net",
-          "schema_version": 0,
-          "attributes": {
-            "backup_window": "",
-            "backups": false,
-            "datacenter": "nbg1-dc3",
-            "id": "5685515",
-            "image": "debian-10",
-            "ipv4_address": "116.203.152.103",
-            "ipv6_address": "2a01:4f8:c0c:c828::1",
-            "ipv6_network": "2a01:4f8:c0c:c828::/64",
-            "iso": null,
-            "keep_disk": false,
-            "labels": {},
-            "location": "nbg1",
-            "name": "controller.testing.thengo.net",
-            "rescue": null,
-            "server_type": "cx11",
-            "ssh_keys": [
-              "1501431"
-            ],
-            "status": "running",
-            "user_data": null
-          },
-          "private": "bnVsbA==",
-          "dependencies": [
-            "hcloud_ssh_key.ssh_keys"
-          ]
-        }
-      ]
-    },
-    {
-      "mode": "managed",
-      "type": "hcloud_ssh_key",
-      "name": "ssh_keys",
-      "each": "map",
-      "provider": "provider.hcloud",
-      "instances": [
-        {
-          "index_key": "~/.ssh/id_ed25519.pub",
-          "schema_version": 0,
-          "attributes": {
-            "fingerprint": "75:3c:1e:51:61:71:51:48:d0:45:18:e4:66:19:de:6e",
-            "id": "1501431",
-            "labels": {},
-            "name": "~/.ssh/id_ed25519.pub",
-            "public_key": "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGwdEkFBdQfY5YB6LR1l+copG7rZXlGLQyWWwhZdNkpW ka\n"
-          },
-          "private": "bnVsbA=="
-        }
-      ]
-    },
-    {
-      "mode": "managed",
-      "type": "local_file",
-      "name": "foo",
-      "provider": "provider.local",
-      "instances": [
-        {
-          "schema_version": 0,
-          "attributes": {
-            "content": "{\"all\":{\"children\":{\"controllers\":{\"hosts\":{\"controller.testing.thengo.net\":{}}},\"provider_hetzner\":{\"hosts\":{\"controller.testing.thengo.net\":{\"ansible_host\":\"116.203.152.103\",\"external_ip\":\"116.203.152.103\"}}}},\"hosts\":{\"controller.testing.thengo.net\":{}}}}",
-            "content_base64": null,
-            "directory_permission": "0755",
-            "file_permission": "0644",
-            "filename": "inventory.json",
-            "id": "0f2b79f769f5dcbdebc46242e9b0484c11646b71",
-            "sensitive_content": null
-          },
-          "private": "bnVsbA==",
-          "dependencies": [
-            "hcloud_server.vms"
-          ]
-        }
-      ]
-    }
-  ]
-}
diff --git a/terraform.tfstate.backup b/terraform.tfstate.backup
deleted file mode 100644
index 1dc64a2..0000000
--- a/terraform.tfstate.backup
+++ /dev/null
@@ -1,238 +0,0 @@
-{
-  "version": 4,
-  "terraform_version": "0.12.24",
-  "serial": 22,
-  "lineage": "0f8651e8-593e-1889-aef1-d79f69de7a9a",
-  "outputs": {
-    "ansible_inventory": {
-      "value": {
-        "all": {
-          "children": {
-            "controllers": {
-              "hosts": {
-                "controller.testing.thengo.net": {}
-              }
-            },
-            "nameservers": {
-              "hosts": {
-                "ns.testing.thengo.net": {}
-              }
-            },
-            "provider_hetzner": {
-              "hosts": {
-                "controller.testing.thengo.net": {
-                  "ansible_host": "116.203.152.103",
-                  "external_ip": "116.203.152.103"
-                },
-                "ns.testing.thengo.net": {
-                  "ansible_host": "116.203.152.95",
-                  "external_ip": "116.203.152.95"
-                }
-              }
-            }
-          },
-          "hosts": {
-            "controller.testing.thengo.net": {},
-            "ns.testing.thengo.net": {}
-          }
-        }
-      },
-      "type": [
-        "object",
-        {
-          "all": [
-            "object",
-            {
-              "children": [
-                "object",
-                {
-                  "controllers": [
-                    "object",
-                    {
-                      "hosts": [
-                        "object",
-                        {
-                          "controller.testing.thengo.net": [
-                            "object",
-                            {}
-                          ]
-                        }
-                      ]
-                    }
-                  ],
-                  "nameservers": [
-                    "object",
-                    {
-                      "hosts": [
-                        "object",
-                        {
-                          "ns.testing.thengo.net": [
-                            "object",
-                            {}
-                          ]
-                        }
-                      ]
-                    }
-                  ],
-                  "provider_hetzner": [
-                    "object",
-                    {
-                      "hosts": [
-                        "object",
-                        {
-                          "controller.testing.thengo.net": [
-                            "object",
-                            {
-                              "ansible_host": "string",
-                              "external_ip": "string"
-                            }
-                          ],
-                          "ns.testing.thengo.net": [
-                            "object",
-                            {
-                              "ansible_host": "string",
-                              "external_ip": "string"
-                            }
-                          ]
-                        }
-                      ]
-                    }
-                  ]
-                }
-              ],
-              "hosts": [
-                "object",
-                {
-                  "controller.testing.thengo.net": [
-                    "object",
-                    {}
-                  ],
-                  "ns.testing.thengo.net": [
-                    "object",
-                    {}
-                  ]
-                }
-              ]
-            }
-          ]
-        }
-      ]
-    }
-  },
-  "resources": [
-    {
-      "mode": "managed",
-      "type": "hcloud_server",
-      "name": "vms",
-      "each": "map",
-      "provider": "provider.hcloud",
-      "instances": [
-        {
-          "index_key": "controller.testing.thengo.net",
-          "schema_version": 0,
-          "attributes": {
-            "backup_window": "",
-            "backups": false,
-            "datacenter": "nbg1-dc3",
-            "id": "5685515",
-            "image": "debian-10",
-            "ipv4_address": "116.203.152.103",
-            "ipv6_address": "2a01:4f8:c0c:c828::1",
-            "ipv6_network": "2a01:4f8:c0c:c828::/64",
-            "iso": null,
-            "keep_disk": false,
-            "labels": {},
-            "location": "nbg1",
-            "name": "controller.testing.thengo.net",
-            "rescue": null,
-            "server_type": "cx11",
-            "ssh_keys": [
-              "1501431"
-            ],
-            "status": "running",
-            "user_data": null
-          },
-          "private": "bnVsbA==",
-          "dependencies": [
-            "hcloud_ssh_key.ssh_keys"
-          ]
-        },
-        {
-          "index_key": "ns.testing.thengo.net",
-          "schema_version": 0,
-          "attributes": {
-            "backup_window": "",
-            "backups": false,
-            "datacenter": "nbg1-dc3",
-            "id": "5685513",
-            "image": "debian-10",
-            "ipv4_address": "116.203.152.95",
-            "ipv6_address": "2a01:4f8:c0c:c827::1",
-            "ipv6_network": "2a01:4f8:c0c:c827::/64",
-            "iso": null,
-            "keep_disk": false,
-            "labels": {},
-            "location": "nbg1",
-            "name": "ns.testing.thengo.net",
-            "rescue": null,
-            "server_type": "cx11",
-            "ssh_keys": [
-              "1501431"
-            ],
-            "status": "running",
-            "user_data": null
-          },
-          "private": "bnVsbA==",
-          "dependencies": [
-            "hcloud_ssh_key.ssh_keys"
-          ]
-        }
-      ]
-    },
-    {
-      "mode": "managed",
-      "type": "hcloud_ssh_key",
-      "name": "ssh_keys",
-      "each": "map",
-      "provider": "provider.hcloud",
-      "instances": [
-        {
-          "index_key": "~/.ssh/id_ed25519.pub",
-          "schema_version": 0,
-          "attributes": {
-            "fingerprint": "75:3c:1e:51:61:71:51:48:d0:45:18:e4:66:19:de:6e",
-            "id": "1501431",
-            "labels": {},
-            "name": "~/.ssh/id_ed25519.pub",
-            "public_key": "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGwdEkFBdQfY5YB6LR1l+copG7rZXlGLQyWWwhZdNkpW ka\n"
-          },
-          "private": "bnVsbA=="
-        }
-      ]
-    },
-    {
-      "mode": "managed",
-      "type": "local_file",
-      "name": "foo",
-      "provider": "provider.local",
-      "instances": [
-        {
-          "schema_version": 0,
-          "attributes": {
-            "content": "{\"all\":{\"children\":{\"controllers\":{\"hosts\":{\"controller.testing.thengo.net\":{}}},\"nameservers\":{\"hosts\":{\"ns.testing.thengo.net\":{}}},\"provider_hetzner\":{\"hosts\":{\"controller.testing.thengo.net\":{\"ansible_host\":\"116.203.152.103\",\"external_ip\":\"116.203.152.103\"},\"ns.testing.thengo.net\":{\"ansible_host\":\"116.203.152.95\",\"external_ip\":\"116.203.152.95\"}}}},\"hosts\":{\"controller.testing.thengo.net\":{},\"ns.testing.thengo.net\":{}}}}",
-            "content_base64": null,
-            "directory_permission": "0755",
-            "file_permission": "0644",
-            "filename": "inventory.json",
-            "id": "24344b5c76e5b8f59034052299c331fe9ea170c3",
-            "sensitive_content": null
-          },
-          "private": "bnVsbA==",
-          "dependencies": [
-            "hcloud_server.vms"
-          ]
-        }
-      ]
-    }
-  ]
-}