Support for Oracle Linux (#3655)

Fixed Issue #1032

test case for OEL7 AIL with kubeadm

Add packet CI stuff for oracle 7

tests/files/gce_oracle-canal.yml

@@ -0,0 +1,14 @@
+---
+# Instance settings
+cloud_image_family: oracle-7
+cloud_region: us-central1-a
+cloud_machine_type: "n1-standard-1"
+mode: default
+
+# Deployment settings
+kube_network_plugin: canal
+dynamic_kubelet_configuration: true
+deploy_netchecker: true
+kubeadm_enabled: true
+kubedns_min_replicas: 1
+cloud_provider: gce

tests/files/packet_oracle-7-canal.yml

@@ -0,0 +1,11 @@
+---
+# Instance settings
+cloud_image: oracle-7
+mode: ha
+
+# Kubespray settings
+kube_network_plugin: canal
+kubeadm_enabled: true
+dynamic_kubelet_configuration: true
+deploy_netchecker: true
+dns_min_replicas: 1