fix: HSM configure_hsm.sh fails on OpenJDK 21 due to removed lib/ext

jobs/credhub/templates/configure_hsm.erb

@@ -32,10 +32,6 @@ EOL
 
 ln -f -s /var/vcap/jobs/credhub/config/encryption.conf /etc/Chrystoki.conf
 
-# JVM 8 - WILL NOT WORK ON JVM 11
-cp /var/vcap/packages/luna-hsm-client-7.4/jsp/LunaProvider.jar $JAVA_HOME/lib/ext/
-cp /var/vcap/packages/luna-hsm-client-7.4/jsp/64/libLunaAPI.so $JAVA_HOME/lib/ext/
-
 <%
   primary_server = hsm_servers.shift
   primary_serial_number = primary_server['partition_serial_number']

jobs/credhub/templates/credhub.erb

@@ -32,6 +32,10 @@ if p('credhub.data_storage.require_tls') || p('credhub.authentication.uaa.enable
 end
 %>
 
+<% if p('credhub.encryption.providers').flatten.any? { |provider| provider['type'] == 'hsm' } %>
+  JAVA_TOOL_OPTIONS="${JAVA_TOOL_OPTIONS} -Djava.library.path=/var/vcap/packages/luna-hsm-client-7.4/jsp/64"
+<% end %>
+
 export JAVA_HOME='/var/vcap/packages/openjdk_25.0/jre'
 export PATH="$JAVA_HOME/bin:$PATH"
 export JAVA_TOOL_OPTIONS

jobs/credhub/templates/ctl.erb

@@ -48,6 +48,10 @@ case $1 in
       -Djavax.net.ssl.trustStorePassword=${TRUST_STORE_PASSWORD} \\"
     end
 
+    if p('credhub.encryption.providers').flatten.any? { |provider| provider['type'] == 'hsm' }
+      java_command += "-Djava.library.path=/var/vcap/packages/luna-hsm-client-7.4/jsp/64 \\"
+    end
+
     java_command += "-ea -jar *.jar --management.server.port=" + p('credhub.health_endpoint_port').to_s
     java_command
     %>

spec/credhub/credhub_spec.rb

@@ -0,0 +1,106 @@
+require 'rspec'
+require 'json'
+require 'yaml'
+require 'bosh/template/test'
+
+describe 'credhub job' do
+  let(:release) { Bosh::Template::Test::ReleaseDir.new(File.join(File.dirname(__FILE__), '..', '..')) }
+  let(:job) { release.job('credhub') }
+
+  describe 'bin/credhub template' do
+    let(:template) { job.template('bin/credhub') }
+
+    let(:base_manifest) do
+      {
+        'credhub' => {
+          'encryption' => {
+            'providers' => [
+              {
+                'name' => 'some-internal-provider',
+                'type' => 'internal'
+              }
+            ]
+          }
+        }
+      }
+    end
+
+    let(:hsm_manifest) do
+      {
+        'credhub' => {
+          'encryption' => {
+            'providers' => [
+              {
+                'name' => 'primary',
+                'type' => 'hsm',
+                'connection_properties' => {
+                  'partition' => 'some-partition',
+                  'partition_password' => 'some-partition-password',
+                  'client_certificate' => 'some-client-certificate',
+                  'client_key' => 'some-client-key',
+                  'servers' => [
+                    {
+                      'host' => '10.0.0.1',
+                      'port' => 1792,
+                      'certificate' => 'some-hsm-certificate',
+                      'partition_serial_number' => '123456789'
+                    }
+                  ]
+                }
+              }
+            ]
+          }
+        }
+      }
+    end
+
+    context 'when no HSM provider is configured' do
+      it 'does not set java.library.path for Luna' do
+        script = template.render(base_manifest)
+        expect(script).not_to include('luna-hsm-client')
+      end
+    end
+
+    context 'when an HSM provider is configured' do
+      it 'sets java.library.path to the Luna native library directory' do
+        script = template.render(hsm_manifest)
+        expect(script).to include('-Djava.library.path=/var/vcap/packages/luna-hsm-client-7.4/jsp/64')
+      end
+    end
+
+    context 'when providers is a nested array containing an HSM provider' do
+      it 'sets java.library.path for the Luna native library' do
+        manifest = {
+          'credhub' => {
+            'encryption' => {
+              'providers' => [
+                [
+                  {
+                    'name' => 'primary',
+                    'type' => 'hsm',
+                    'connection_properties' => {
+                      'partition' => 'p',
+                      'partition_password' => 'pw',
+                      'client_certificate' => 'cert',
+                      'client_key' => 'key',
+                      'servers' => [
+                        {
+                          'host' => '10.0.0.1',
+                          'port' => 1792,
+                          'certificate' => 'hsm-cert',
+                          'partition_serial_number' => '123'
+                        }
+                      ]
+                    }
+                  }
+                ]
+              ]
+            }
+          }
+        }
+        script = template.render(manifest)
+        expect(script).to include('-Djava.library.path=/var/vcap/packages/luna-hsm-client-7.4/jsp/64')
+      end
+    end
+  end
+end

spec/credhub/ctl_spec.rb

@@ -0,0 +1,71 @@
+require 'rspec'
+require 'json'
+require 'yaml'
+require 'bosh/template/test'
+
+describe 'credhub job' do
+  let(:release) { Bosh::Template::Test::ReleaseDir.new(File.join(File.dirname(__FILE__), '..', '..')) }
+  let(:job) { release.job('credhub') }
+
+  describe 'bin/ctl template' do
+    let(:template) { job.template('bin/ctl') }
+
+    let(:base_manifest) do
+      {
+        'credhub' => {
+          'encryption' => {
+            'providers' => [
+              {
+                'name' => 'some-internal-provider',
+                'type' => 'internal'
+              }
+            ]
+          }
+        }
+      }
+    end
+
+    let(:hsm_manifest) do
+      {
+        'credhub' => {
+          'encryption' => {
+            'providers' => [
+              {
+                'name' => 'primary',
+                'type' => 'hsm',
+                'connection_properties' => {
+                  'partition' => 'some-partition',
+                  'partition_password' => 'some-partition-password',
+                  'client_certificate' => 'some-client-certificate',
+                  'client_key' => 'some-client-key',
+                  'servers' => [
+                    {
+                      'host' => '10.0.0.1',
+                      'port' => 1792,
+                      'certificate' => 'some-hsm-certificate',
+                      'partition_serial_number' => '123456789'
+                    }
+                  ]
+                }
+              }
+            ]
+          }
+        }
+      }
+    end
+
+    context 'when no HSM provider is configured' do
+      it 'does not add java.library.path for Luna' do
+        script = template.render(base_manifest)
+        expect(script).not_to include('luna-hsm-client')
+      end
+    end
+
+    context 'when an HSM provider is configured' do
+      it 'passes java.library.path for the Luna native library' do
+        script = template.render(hsm_manifest)
+        expect(script).to include('-Djava.library.path=/var/vcap/packages/luna-hsm-client-7.4/jsp/64')
+      end
+    end
+  end
+end