Added the Key Pair drop down list to UI forms

Added new parameter for each Linux-based
(Linux Telnet and Linux Apache) services.

User can select the Key Pair from the drop down list
durring the Murano Linux-based services configuration.

Implemented: blueprint key-pair-for-linux-services
Change-Id: I774cd3714791ea7db1bd4889d38f52a1067c50fa

muranorepository/Services/heat_templates/Linux.template

@@ -5,7 +5,7 @@
         "KeyName": {
             "Description": "Key Pair name for Load Balancer",
             "Type": "String",
-            "Default": "murano-lb-key"
+            "Default": "$keyName"
         }
     },
 
@@ -13,6 +13,7 @@
         "$instanceName": {
             "Type": "AWS::EC2::Instance",
             "Properties": {
+                "KeyName": { "Ref" : "KeyName" },
                 "InstanceType": "$instanceType",
                 "ImageId": "$imageName",
                 "AvailabilityZone": "$availabilityZone",

muranorepository/Services/ui_forms/LinuxApache.yaml

@@ -34,6 +34,11 @@ forms:
           label: Instance Count
           description: Several instances with Apache web Service can be created at one time.
           helpText: Enter an integer value between 1 and 10
+        - name: keyPair
+          type: keypair
+          label: Key Pair
+          description: >-
+             The Key Pair for VMs with this service
         - name: unitNamingPattern
           type: string
           label: Hostname

muranorepository/Services/ui_forms/LinuxTelnet.yaml

@@ -43,6 +43,11 @@ forms:
           required: false
           widgetMedia:
             css: {all: [muranodashboard/css/checkbox.css]}
+        - name: keyPair
+          type: keypair
+          label: Key Pair
+          description: >-
+             The Key Pair for VMs with this service
         - name: unitNamingPattern
           type: string
           label: Hostname

muranorepository/Services/workflows/Apache.xml

@@ -16,6 +16,9 @@
 					<mapping name="instanceName">
 						<select path="state.hostname"/>
 					</mapping>
+                    <mapping name="keyName">
+                        <select path="::keyPair.name"/>
+                    </mapping>
 					<mapping name="userData">
 						<prepare-user-data template="Linux" initFile="linux_init.sh">
 							<parameter name="hostname">

muranorepository/Services/workflows/LinuxTelnet.xml

@@ -10,6 +10,7 @@
 			<parameter name="mappings">
 				<map>
 					<mapping name="instanceName"><select path="state.hostname"/></mapping>
+                    <mapping name="keyName"><select path="::keyPair.name"/></mapping>
 					<mapping name="userData">
 						<prepare-user-data template="Linux" initFile="linux_init.sh">
 							<parameter name="hostname"><select path="state.hostname"/></parameter>