Added cilium support (#2236)

* Added cilium support

* Fix typo in debian test config

* Remove empty lines

* Changed cilium version from <latest> to <v1.0.0-rc3>

* Add missing changes for cilium

* Add cilium to CI pipeline

* Fix wrong file name

* Check kernel version for cilium

* fixed ci error

* fixed cilium-ds.j2 template

* added waiting for cilium pods to run

* Fixed missing EOF

* Fixed trailing spaces

* Fixed trailing spaces

* Fixed trailing spaces

* Fixed too many blank lines

* Updated tolerations,annotations in cilium DS template

* Set cilium_version to iptables-1.9 to see if bug is fixed in CI

* Update cilium image tag to v1.0.0-rc4

* Update Cilium test case CI vars filenames

* Add optional prometheus flag, adjust initial readiness delay

* Update README.md with cilium info

tests/files/gce_ubuntu-cilium-sep.yml

@@ -0,0 +1,11 @@
+# Instance settings
+cloud_image_family: ubuntu-1604-lts
+cloud_region: us-central1-b
+mode: separate
+
+# Deployment settings
+kube_network_plugin: cilium
+deploy_netchecker: true
+kubedns_min_replicas: 1
+cloud_provider: gce
+