[patch] add some ocp functions (#149)

Co-authored-by: Sanjay Prabhakar <sanjay.prabhakar@uk.ibm.com>

Author: sanjayprab

src/mas/devops/ocp.py

@@ -243,6 +243,63 @@ def crdExists(dynClient: DynamicClient, crdName: str) -> bool:
         return False
 
 
+def getCR(dynClient: DynamicClient, cr_api_version: str, cr_kind: str, cr_name: str, namespace: str = None) -> dict:
+    """
+    Get a Custom Resource
+    """
+
+    try:
+        crAPI = dynClient.resources.get(api_version=cr_api_version, kind=cr_kind)
+        if namespace:
+            cr = crAPI.get(name=cr_name, namespace=namespace)
+        else:
+            cr = crAPI.get(name=cr_name)
+        return cr
+    except NotFoundError:
+        logger.debug(f"CR {cr_name} of kind {cr_kind} does not exist in namespace {namespace}")
+
+    return {}
+
+
+def getSecret(dynClient: DynamicClient, namespace: str, secret_name: str) -> dict:
+    """
+    Get a Secret
+    """
+    try:
+        secretAPI = dynClient.resources.get(api_version="v1", kind="Secret")
+        secret = secretAPI.get(name=secret_name, namespace=namespace)
+        logger.debug(f"Secret {secret_name} exists in namespace {namespace}")
+        return secret.to_dict()
+    except NotFoundError:
+        logger.debug(f"Secret {secret_name} does not exist in namespace {namespace}")
+    return {}
+
+
+def apply_resource(dynClient: DynamicClient, resource_yaml: str, namespace: str):
+    """
+    Apply a Kubernetes resource from its YAML definition.
+    If the resource already exists, it will be updated.
+    If it does not exist, it will be created.
+    """
+    resource_dict = yaml.safe_load(resource_yaml)
+    kind = resource_dict['kind']
+    api_version = resource_dict['apiVersion']
+    metadata = resource_dict['metadata']
+    name = metadata['name']
+
+    try:
+        resource = dynClient.resources.get(api_version=api_version, kind=kind)
+        # Try to get the existing resource
+        resource.get(name=name, namespace=namespace)
+        # If found, update it
+        logger.debug(f"Updating existing {kind} '{name}' in namespace '{namespace}'")
+        resource.patch(body=resource_dict, namespace=namespace, name=name)
+    except NotFoundError:
+        # If not found, create it
+        logger.debug(f"Creating new {kind} '{name}' in namespace '{namespace}'")
+        resource.create(body=resource_dict, namespace=namespace)
+
+
 def listInstances(dynClient: DynamicClient, apiVersion: str, kind: str) -> list:
     """
     Get a list of instances of a particular CR on the cluster