Refactor NRI activation for containerd and CRI-O (#10470)

Refactor NRI (Node Resource Interface) activation in CRI-O and
containerd. Introduce a shared variable, nri_enabled, to streamline
the process. Currently, enabling NRI requires a separate update of
defaults for each container runtime independently, without any
verification of NRI support for the specific version of containerd
or CRI-O in use.

With this commit, the previous approach is replaced. Now, a single
variable, nri_enabled, handles this functionality. Also, this commit
separates the responsibility of verifying NRI supported versions of
containerd and CRI-O from cluster administrators, and leaves it to
Ansible.

Signed-off-by: Feruzjon Muyassarov <feruzjon.muyassarov@intel.com>

roles/container-engine/containerd/defaults/main.yml

@@ -64,9 +64,6 @@ containerd_enable_unprivileged_ports: false
 # If enabled it will allow non root users to use icmp sockets
 containerd_enable_unprivileged_icmp: false
 
-# If enabled, it will activate the NRI support in containerd
-containerd_nri_disable: true
-
 containerd_cfg_dir: /etc/containerd
 
 # Extra config to be put in {{ containerd_cfg_dir }}/config.toml literally

roles/container-engine/containerd/templates/config.toml.j2

@@ -78,8 +78,10 @@ oom_score = {{ containerd_oom_score }}
 {% endif %}
 {% endfor %}
 
+{% if nri_enabled and containerd_version >= 1.7.0 %}
   [plugins."io.containerd.nri.v1.nri"]
-    disable = {{ containerd_nri_disable | default(true) | lower }}
+    disable = false
+{% endif %}
 
 {% if containerd_extra_args is defined %}
 {{ containerd_extra_args }}