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

roles/download/defaults/main.yml

@@ -41,6 +41,7 @@ vault_version: 0.8.1
 weave_version: 2.2.0
 pod_infra_version: 3.0
 contiv_version: 1.1.7
+cilium_version: "v1.0.0-rc4"
 
 # Download URLs
 istioctl_download_url: "https://storage.googleapis.com/istio-release/releases/{{ istio_version }}/istioctl/istioctl-linux"
@@ -88,6 +89,8 @@ contiv_image_repo: "contiv/netplugin"
 contiv_image_tag: "{{ contiv_version }}"
 contiv_auth_proxy_image_repo: "contiv/auth_proxy"
 contiv_auth_proxy_image_tag: "{{ contiv_version }}"
+cilium_image_repo: "docker.io/cilium/cilium"
+cilium_image_tag: "{{ cilium_version }}"
 
 nginx_image_repo: nginx
 nginx_image_tag: 1.13
@@ -174,6 +177,12 @@ downloads:
     repo: "{{ hyperkube_image_repo }}"
     tag: "{{ hyperkube_image_tag }}"
     sha256: "{{ hyperkube_digest_checksum|default(None) }}"
+  cilium:
+    enabled: "{{ kube_network_plugin == 'cilium' }}"
+    container: true
+    repo: "{{ cilium_image_repo }}"
+    tag: "{{ cilium_image_tag }}"
+    sha256: "{{ cilium_digest_checksum|default(None) }}"
   flannel:
     enabled: "{{ kube_network_plugin == 'flannel' or kube_network_plugin == 'canal' }}"
     container: true