Add OCI controller implemented with oracle API code.

This patch allow us decouple terraform code from cluster testing.
Terraform provided by oracle and maintained by them.
Terraform version / code may be updated by oracle .

We run the test same as customer , created support for the next steps:
1. Create a bucket (object-storage)
2. Upload ISO file to the object-storage bucket
3. Create pre authenticated - return ISO download link from OCI storage
4. Create a stack , declare the provision configuration.
5. Upload infrastructure zip file to the stack and set terraform variable
6. Start running job creating oci nodes discovered by redhat cluster and return terraform output files
7. Once nodes are discovered we configure manifest return in #6

We handle cleanup on teardown , running destory .

skipper.env

@@ -158,6 +158,9 @@ DAY2_PROVISIONING_CIDR6
 DAY2_NETWORK_IF
 DAY2_SECONDARY_NETWORK_IF
 OCI_COMPARTMENT
+OCI_COMPUTE_SHAPE
+OCI_CONTROLLER_SHAPE
+OCI_INFRASTRUCTURE_ZIP_FILE
 OCI_USER
 OCI_PRIVATE_KEY_PATH
 OCI_PUBLIC_KEY_FINGERPRINT

src/assisted_test_infra/test_infra/controllers/__init__.py

@@ -7,6 +7,7 @@
 from .node_controllers.node import Node
 from .node_controllers.nutanix_controller import NutanixController
 from .node_controllers.oci_controller import OciController
+from .node_controllers.oci_api_controller import OciApiController
 from .node_controllers.terraform_controller import TerraformController
 from .node_controllers.vsphere_controller import VSphereController
 from .proxy_controller.proxy_controller import ProxyController
@@ -25,6 +26,7 @@
     "TerraformController",
     "LibvirtController",
     "OciController",
+    "OciApiController",
     "VSphereController",
     "NutanixController",
 ]

src/assisted_test_infra/test_infra/controllers/node_controllers/__init__.py

@@ -3,6 +3,7 @@
 from .node import Node
 from .node_controller import NodeController
 from .oci_controller import OciController
+from .oci_api_controller import OciApiController
 from .terraform_controller import TerraformController
 from .vsphere_controller import VSphereController
 from .zvm_controller import ZVMController
@@ -15,5 +16,6 @@
     "Node",
     "LibvirtController",
     "OciController",
+    "OciApiController",
     "ZVMController",
 ]