Use gce hostname as inventory name

Calico does not allow renaming hosts

.gitlab-ci.yml

@@ -328,7 +328,6 @@ before_script:
   CLUSTER_MODE: separate
   ETCD_DEPLOYMENT: rkt
   KUBELET_DEPLOYMENT: rkt
-  UPGRADE_TEST: "graceful"
 
 .ubuntu_vault_sep_variables: &ubuntu_vault_sep_variables
 # stage: deploy-gce-part1
@@ -445,7 +444,7 @@ rhel7-weave-triggers:
   when: on_success
   only: ['triggers']
 
-debian8-calico:
+debian8-calico-upgrade:
   stage: deploy-gce-part2
   <<: *job
   <<: *gce

tests/templates/inventory-gce.j2

-node1 ansible_ssh_host={{gce.instance_data[0].public_ip}}
-node2 ansible_ssh_host={{gce.instance_data[1].public_ip}}
+{% set node1 = gce.instance_data[0].name %}
+{% set node2 = gce.instance_data[1].name %}
+{{node1}} ansible_ssh_host={{gce.instance_data[0].public_ip}}
+{{node2}} ansible_ssh_host={{gce.instance_data[1].public_ip}}
 {% if mode is defined and mode in ["separate", "ha"] %}
-node3 ansible_ssh_host={{gce.instance_data[2].public_ip}}
+{% set node3 = gce.instance_data[2].name %}
+{{node3}} ansible_ssh_host={{gce.instance_data[2].public_ip}}
 {% endif %}
 
 {% if mode is defined and mode == "separate" %}
 [kube-master]
-node1
+{{node1}}
 
 [kube-node]
-node2
+{{node2}}
 
 [etcd]
-node3
+{{node3}}
 
 [vault]
-node3
+{{node3}}
 {% elif mode is defined and mode == "ha" %}
 [kube-master]
-node1
-node2
+{{node1}}
+{{node2}}
 
 [kube-node]
-node3
+{{node3}}
 
 [etcd]
-node2
-node3
+{{node2}}
+{{node3}}
 
 [vault]
-node2
-node3
+{{node2}}
+{{node3}}
 {% else %}
 [kube-master]
-node1
+{{node1}}
 
 [kube-node]
-node2
+{{node2}}
 
 [etcd]
-node1
+{{node1}}
 
 [vault]
-node1
+{{node1}}
 {% endif %}
 
 [k8s-cluster:children]