Overwrite PSP enable option for kube ver. 1.25+

Adding a check under get_override function for vault. This checks if PSP
is enabled by the user for systems with kubernetes version 1.25 and
above, and if it is, then it will be disabled.

Test Plan:
PASS	Unit Tests
PASS	User override with global.psp.enable=true will be changed to
	false during first/repeated application-apply
PASS	User override with global.psp.enable=true will be changed to
	false during application-update
PASS	Vault application install
PASS	Vault application update after kubernetes upgrade from version
	1.24 to 1.25 or newer
PASS	AIO-SX vault sanity

Story: 2011073
Task: 49799

Change-Id: Ia78e5a0c4423ff110a31d002904e82dee2316d65
Signed-off-by: Tae Park <tae.park@windriver.com>

python3-k8sapp-vault/k8sapp_vault/k8sapp_vault/helm/vault.py

@@ -12,6 +12,7 @@ from oslo_log import log as logging
 
 from sysinv.common import constants
 from sysinv.common import exception
+from sysinv.common import kubernetes
 
 from sysinv.helm import base
 from sysinv.helm import common
@@ -70,6 +71,34 @@ class VaultHelm(base.FluxCDBaseHelm):
             app_constants.HELM_CHART_NS_VAULT,
             'user_overrides')
 
+        k8s_version = ""
+
+        try:
+            kube = kubernetes.KubeOperator()
+            k8s_version = kube.kube_get_kubernetes_version()
+        except exception.KubeNotConfigured:
+            # Do not check for psp override if kubernetes is not configured yet
+            pass
+
+        if (k8s_version >= "v1.25.1"
+                and new_chart_overrides
+                and "global" in new_chart_overrides.keys()
+                and "psp" in new_chart_overrides["global"].keys()
+                and "enable" in new_chart_overrides["global"]["psp"].keys()
+                and new_chart_overrides["global"]["psp"]["enable"] is True):
+            LOG.info("PSP must be disabled for kubernetes version 1.25 and onwards, "
+                        "as the feature is depreciated. User helm override will be changed "
+                        "so that global.psp.enabled is false")
+            new_chart_overrides["global"]["psp"]["enable"] = False
+            self._update_helm_overrides(
+                dbapi_instance,
+                db_app,
+                app_constants.HELM_CHART_VAULT,
+                app_constants.HELM_CHART_NS_VAULT,
+                'user_overrides',
+                new_chart_overrides
+            )
+
         user_chosen_affinity = new_chart_overrides.get(
             app_constants.HELM_CHART_COMPONENT_LABEL) \
             if new_chart_overrides else None
@@ -123,3 +152,15 @@ class VaultHelm(base.FluxCDBaseHelm):
         except exception.HelmOverrideNotFound:
             LOG.debug("Overrides for this chart not found, nothing to be done.")
         return helm_overrides
+
+    @staticmethod
+    def _update_helm_overrides(dbapi_instance, app, chart, namespace,
+                            type_of_overrides, value):
+        """Helper function for updating helm overrides to db."""
+        helm_overrides = {type_of_overrides: yaml.safe_dump(value)}
+        dbapi_instance.helm_override_update(
+            app_id=app.id,
+            name=chart,
+            namespace=namespace,
+            values=helm_overrides
+        )