Connect domain settings to pools, create v2 API

spec/unit/pool_manager_spec.rb

@@ -1672,6 +1672,93 @@ EOT
     end
   end
 
+  describe '#get_domain_for_pool' do
+    let(:provider_name) { 'mock_provider' }
+    context 'No provider is set' do
+      let(:config) { YAML.load(<<~EOT
+        ---
+        :config:
+        :providers:
+          :mock_provider:
+        :pools:
+          - name: '#{pool}'
+            size: 1
+        EOT
+      )}
+
+      it 'should return nil' do
+        result = subject.get_domain_for_pool(pool)
+        expect(result).to be_nil
+      end
+    end
+    context 'No domain is set' do
+      let(:config) { YAML.load(<<~EOT
+        ---
+        :config:
+        :providers:
+          :mock_provider:
+        :pools:
+          - name: '#{pool}'
+            size: 1
+            provider: #{provider_name}
+        EOT
+      )}
+
+      it 'should return nil' do
+        allow(subject).to receive(:get_provider_for_pool).with(pool).and_return(provider)
+        allow(provider).to receive(:name).and_return(provider_name)
+        result = subject.get_domain_for_pool(pool)
+        expect(result).to be_nil
+      end
+    end
+
+    context 'Only a global domain is set' do
+      let(:config) { YAML.load(<<~EOT
+        ---
+        :config:
+          domain: example.com
+        :providers:
+          :mock_provider:
+        :pools:
+          - name: '#{pool}'
+            size: 1
+            provider: #{provider_name}
+        EOT
+      )}
+
+      it 'should return the domain set in the config section' do
+        allow(subject).to receive(:get_provider_for_pool).with(pool).and_return(provider)
+        allow(provider).to receive(:name).and_return(provider_name)
+        result = subject.get_domain_for_pool(pool)
+        expect(result).to_not be_nil
+        expect(result).to eq('example.com')
+      end
+    end
+
+    context 'A provider specified a domain to use' do
+      let(:config) { YAML.load(<<~EOT
+        ---
+        :config:
+        :providers:
+          :mock_provider:
+            domain: m.example.com
+        :pools:
+          - name: '#{pool}'
+            size: 1
+            provider: #{provider_name}
+        EOT
+      )}
+
+      it 'should return the domain set in the config section' do
+        allow(subject).to receive(:get_provider_for_pool).with(pool).and_return(provider)
+        allow(provider).to receive(:name).and_return(provider_name)
+        result = subject.get_domain_for_pool(pool)
+        expect(result).to_not be_nil
+        expect(result).to eq('m.example.com')
+      end
+    end
+  end
+
   describe '#check_disk_queue' do
     let(:threads) {[]}
 
@@ -2708,6 +2795,7 @@ EOT
       allow(subject).to receive(:check_snapshot_queue)
       allow(subject).to receive(:check_pool)
       allow(subject).to receive(:check_ondemand_requests)
+      allow(subject).to receive(:get_domain_for_pool).and_return('example.com')
 
       allow(logger).to receive(:log)
     end