diff --git a/python/src/mas/cli/install/app.py b/python/src/mas/cli/install/app.py
index e1719d245f..2f8e4eb691 100644
--- a/python/src/mas/cli/install/app.py
+++ b/python/src/mas/cli/install/app.py
@@ -37,6 +37,7 @@
 from .catalogs import supportedCatalogs
 
 from mas.cli.validators import (
+    ClusterIssuerValidator,
     InstanceIDFormatValidator,
     WorkspaceIDFormatValidator,
     WorkspaceNameFormatValidator,
@@ -51,7 +52,8 @@
     createNamespace,
     getStorageClasses,
     getClusterVersion,
-    isClusterVersionInRange
+    isClusterVersionInRange,
+    getClusterIssuers
 )
 from mas.devops.mas import (
     getCurrentCatalog,
@@ -562,7 +564,6 @@ def configDNSAndCerts(self):
                 "Unless you see an error during the ocp-verify stage indicating that the secret can not be determined you do not need to set this and can leave the response empty"
             ])
             self.promptForString("Cluster ingress certificate secret name", "ocp_ingress_tls_secret_name", default="")
-
             self.printH1("Configure Domain & Certificate Management")
             configureDomainAndCertMgmt = self.yesOrNo('Configure domain & certificate management')
             if configureDomainAndCertMgmt:
@@ -602,13 +603,34 @@ def configDNSAndCerts(self):
                     # Use MAS default self-signed cluster issuer with the default domain
                     self.setParam("dns_provider", "")
                     self.setParam("mas_domain", "")
-                    self.setParam("mas_cluster_issuer", "")
                 self.manualCerts = self.yesOrNo("Configure manual certificates")
                 self.setParam("mas_manual_cert_mgmt", self.manualCerts)
                 if self.getParam("mas_manual_cert_mgmt"):
                     self.manualCertsDir = self.promptForDir("Enter the path containing the manual certificates", mustExist=True)
                 else:
                     self.manualCertsDir = None
+            else:
+                # Configuring domain
+                if self.yesOrNo('Configure custom domain'):
+                    self.promptForString("MAS top-level domain", "mas_domain")
+                else:
+                    self.setParam("mas_domain", "")
+
+                # Configuring DNS
+                if self.yesOrNo("Do you want MAS to set up its own (self-signed) cluster issuer?"):
+                    self.setParam("mas_cluster_issuer", "")
+                else:
+                    self.printDescription([
+                        "Select the ClusterIssuer to use from the list below:",
+                    ])
+                    clusterIssuers = getClusterIssuers(self.dynamicClient)
+                    if clusterIssuers is not None and len(clusterIssuers) > 0:
+                        for clusterIssuer in clusterIssuers:
+                            print_formatted_text(HTML(f"<LightSlateGrey>  - {clusterIssuer.metadata.name}</LightSlateGrey>"))
+                        self.params['mas_cluster_issuer'] = prompt(HTML('<Yellow>MAS Cluster Issuer</Yellow> '), validator=ClusterIssuerValidator(), validate_while_typing=False)
+                    else:
+                        print_formatted_text(HTML("<Red>No ClusterIssuers found on this cluster. MAS will use self-signed certificates.</Red>"))
+                        self.setParam("mas_cluster_issuer", "")
 
     @logMethodCall
     def configDNSAndCertsCloudflare(self):
diff --git a/python/src/mas/cli/validators.py b/python/src/mas/cli/validators.py
index 446349b63b..202dc432b8 100644
--- a/python/src/mas/cli/validators.py
+++ b/python/src/mas/cli/validators.py
@@ -19,7 +19,7 @@
 
 from prompt_toolkit.validation import Validator, ValidationError
 
-from mas.devops.ocp import getStorageClass
+from mas.devops.ocp import getStorageClass, getClusterIssuer
 from mas.devops.mas import verifyMasInstance
 from mas.devops.aiservice import verifyAiServiceInstance, verifyAiServiceTenantInstance
 
@@ -238,3 +238,18 @@ def validate(self, document):
 
         if not match(r"^.{1,4}$", bucketPrefix):
             raise ValidationError(message='Bucket prefix does not meet the requirement', cursor_position=len(bucketPrefix))
+
+
+class ClusterIssuerValidator(Validator):
+    def validate(self, document):
+        """
+        Validate that a ClusterIssuer exists on the target cluster
+        """
+        name = document.text
+
+        dynClient = dynamic.DynamicClient(
+            api_client.ApiClient(configuration=config.load_kube_config())
+        )
+
+        if getClusterIssuer(dynClient, name) is None:
+            raise ValidationError(message='Specified cluster issuer is not available on this cluster', cursor_position=len(name))