Calico: update files to handle multi-asn bgp peering conditions. (#6971)

* update files to handle multi-asn bgp peering conditions.

* put back in the serviceClusterIPs.  Bad merge.

* remove extraneous environment var.

* update files as discussed with mirwan

* update titles.

* add not in.

* add a conditional for using bgp to advertise cluster ips.

Co-authored-by: marlow-h <mweston@habana.ai>

inventory/sample/group_vars/k8s-cluster/k8s-net-calico.yml

@@ -23,6 +23,10 @@
 # Global as_num (/calico/bgp/v1/global/as_num)
 # global_as_num: "64512"
 
+# If doing peering with node-assigned asn where the globas does not match your nodes, you want this
+# to be true.  All other cases, false.
+# calico_no_global_as_num: false
+
 # You can set MTU value here. If left undefined or empty, it will
 # not be specified in calico CNI config, so Calico will use built-in
 # defaults. The value should be a number, not a string.

roles/network_plugin/calico/tasks/install.yml

@@ -168,7 +168,7 @@
     - inventory_hostname in groups['k8s-cluster']
   run_once: yes
 
-- name: Calico | Set global as_num
+- name: Calico | Set up BGP Configuration
   command:
     cmd: "{{ bin_dir }}/calicoctl.sh apply -f -"
     stdin: >
@@ -179,9 +179,10 @@
       },
       "spec": {
           "logSeverityScreen": "Info",
+          {% if not calico_no_global_as_num|default(false) %}"asNumber": {{ global_as_num }},{% endif %}
           "nodeToNodeMeshEnabled": {{ nodeToNodeMeshEnabled|default('true') }} ,
-          "serviceExternalIPs": {{ _service_external_ips|default([]) }},
+          {% if calico_advertise_cluster_ips|default(false) %}"serviceClusterIPs": [{"cidr": {{ kube_service_addresses }} }],{% endif %}
-          "asNumber": {{ global_as_num }} }}
+          "serviceExternalIPs": {{ _service_external_ips|default([]) }} }}
   changed_when: false
   when:
     - inventory_hostname == groups['kube-master'][0]

roles/network_plugin/calico/templates/calico-node.yml.j2

@@ -224,10 +224,6 @@ spec:
               value: "{{ calico_felix_prometheusgometricsenabled }}"
             - name: FELIX_PROMETHEUSPROCESSMETRICSENABLED
               value: "{{ calico_felix_prometheusprocessmetricsenabled }}"
-{% if calico_advertise_cluster_ips|default(false) %}
-            - name: CALICO_ADVERTISE_CLUSTER_IPS
-              value: "{{ kube_service_addresses }}"
-{% endif %}
 {% if calico_ip_auto_method is defined %}
             - name: IP_AUTODETECTION_METHOD
               value: "{{ calico_ip_auto_method }}"