Add a temporary tripleo cloud "rh2"

rh1 is physically moving location soon, to prevent an outage we
intend to run a subset to tripleo jobs on rh2.

Depends-On: I6026c6a814faa089788ccdf7a0d6622283cb691d
Change-Id: I7e5b7007424e87428be9ee4d463b9afd9fb184f1

nodepool/nodepool.yaml

@@ -132,6 +132,12 @@ labels:
     min-ready: 18
     providers:
       - name: tripleo-test-cloud-rh1
+  - name: tripleo-centos-7-ovb
+    image: centos-7
+    ready-script: configure_mirror.sh
+    min-ready: 3
+    providers:
+      - name: tripleo-test-cloud-rh2
 providers:
   - name: rax-dfw
     region-name: 'DFW'
@@ -615,6 +621,21 @@ providers:
         diskimage: centos-7
         username: jenkins
         private-key: /home/nodepool/.ssh/id_rsa
+  - name: tripleo-test-cloud-rh2
+    region-name: 'regionOne'
+    cloud: tripleo-test-cloud-rh2
+    boot-timeout: 120
+    max-servers: 15
+    rate: 0.001
+    networks:
+      - net-label: private
+    images:
+      - name: centos-7
+        min-ram: 6144
+        name-filter: undercloud
+        diskimage: centos-7
+        username: jenkins
+        private-key: /home/nodepool/.ssh/id_rsa
 
 targets:
   - name: zuul