Upgrade Cilium network plugin to v1.5.5. (#5014)

* Needs an additional cilium-operator deployment.
  * Added option to enable hostPort mappings.

roles/network_plugin/cilium/defaults/main.yml

@@ -1,7 +1,9 @@
 ---
 # Log-level
 cilium_debug: false
-cilium_disable_ipv4: false
+
+cilium_enable_ipv4: true
+cilium_enable_ipv6: false
 
 # Etcd SSL dirs
 cilium_cert_dir: /etc/cilium/certs
@@ -9,9 +11,6 @@ kube_etcd_cacert_file: ca.pem
 kube_etcd_cert_file: node-{{ inventory_hostname }}.pem
 kube_etcd_key_file: node-{{ inventory_hostname }}-key.pem
 
-# Cilium Network Policy directory
-cilium_policy_dir: /etc/kubernetes/policy
-
 # Limits for apps
 cilium_memory_limit: 500M
 cilium_cpu_limit: 500m
@@ -20,3 +19,12 @@ cilium_cpu_requests: 100m
 
 # Optional features
 cilium_enable_prometheus: false
+# Enable if you want to make use of hostPort mappings
+cilium_enable_portmap: false
+
+# If upgrading from Cilium < 1.5, you may want to override some of these options
+# to prevent service disruptions. See also:
+# http://docs.cilium.io/en/stable/install/upgrade/#changes-that-may-require-action
+cilium_preallocate_bpf_maps: false
+cilium_tofqdns_enable_poller: false
+cilium_enable_legacy_services: false