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/network_plugin/cilium/defaults/main.yml

@@ -0,0 +1,25 @@
+---
+# Log-level
+cilium_debug: false
+cilium_disable_ipv4: false
+
+# Etcd SSL dirs
+cilium_cert_dir: /etc/cilium/certs
+etcd_cert_dir: /etc/ssl/etcd/ssl
+
+# Cilium Network Policy directory
+cilium_policy_dir: /etc/kubernetes/policy
+
+# Limits for apps
+cilium_memory_limit: 500M
+cilium_cpu_limit: 200m
+cilium_memory_requests: 64M
+cilium_cpu_requests: 50m
+
+# Optional features
+cilium_enable_prometheus: false
+
+rbac_resources:
+  - sa
+  - clusterrole
+  - clusterrolebinding