Fix logic for ingress can_uninstall?

We want to be able to uninstall ingress
not based on jupyter installable but on
jupyter installed status

app/models/clusters/applications/ingress.rb

@@ -50,7 +50,7 @@ module Clusters
       end
 
       def allowed_to_uninstall?
-        external_ip_or_hostname? && application_jupyter_nil_or_installable?
+        external_ip_or_hostname? && !application_jupyter_installed?
       end
 
       def install_command
@@ -161,8 +161,8 @@ module Clusters
         YAML.load_file(chart_values_file).deep_merge!(specification)
       end
 
-      def application_jupyter_nil_or_installable?
-        cluster.application_jupyter.nil? || cluster.application_jupyter&.installable?
+      def application_jupyter_installed?
+        cluster.application_jupyter&.installed?
       end
 
       def modsecurity_snippet_content

changelogs/unreleased/fix_logic_for_ingress_can_uninstall.yml

+---
+title: Fix logic for ingress can_uninstall?
+merge_request: 27729
+author:
+type: fixed

spec/models/clusters/applications/ingress_spec.rb

@@ -21,27 +21,61 @@ describe Clusters::Applications::Ingress do
   describe '#can_uninstall?' do
     subject { ingress.can_uninstall? }
 
-    it 'returns true if external ip is set and no application exists' do
+    context 'with jupyter installed' do
+      before do
+        create(:clusters_applications_jupyter, :installed, cluster: ingress.cluster)
+      end
+
+      it 'returns false if external_ip_or_hostname? is true' do
         ingress.external_ip = 'IP'
 
-      is_expected.to be_truthy
+        is_expected.to be_falsey
       end
 
-    it 'returns false if application_jupyter_nil_or_installable? is false' do
-      create(:clusters_applications_jupyter, :installed, cluster: ingress.cluster)
-
+      it 'returns false if external_ip_or_hostname? is false' do
         is_expected.to be_falsey
       end
+    end
+
+    context 'with jupyter installable' do
+      before do
+        create(:clusters_applications_jupyter, :installable, cluster: ingress.cluster)
+      end
+
+      it 'returns true if external_ip_or_hostname? is true' do
+        ingress.external_ip = 'IP'
 
-    it 'returns false if application_elastic_stack_nil_or_installable? is false' do
-      create(:clusters_applications_elastic_stack, :installed, cluster: ingress.cluster)
+        is_expected.to be_truthy
+      end
 
+      it 'returns false if external_ip_or_hostname? is false' do
         is_expected.to be_falsey
       end
+    end
 
+    context 'with jupyter nil' do
       it 'returns false if external_ip_or_hostname? is false' do
         is_expected.to be_falsey
       end
+
+      context 'if external_ip_or_hostname? is true' do
+        context 'with IP' do
+          before do
+            ingress.external_ip = 'IP'
+          end
+
+          it { is_expected.to be_truthy }
+        end
+
+        context 'with hostname' do
+          before do
+            ingress.external_hostname = 'example.com'
+          end
+
+          it { is_expected.to be_truthy }
+        end
+      end
+    end
   end
 
   describe '#make_installed!' do