Add playbook to apply Performance profile to run llc tests

Signed-off-by: Niranjan M.R <mniranja@redhat.com>

Author: mrniranjan

roles/llc/README.md

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+# LLC Role
+
+This Ansible role creates a PerformanceProfile for Low Latency Communications (LLC) workloads on OpenShift clusters.
+
+## Description
+
+The role creates a PerformanceProfile with specific configurations optimized for low latency workloads including:
+- CPU isolation and reservation
+- Huge pages configuration
+- Real-time kernel settings
+- Network optimizations
+- NUMA topology settings
+
+## Variables
+
+The following variables can be customized in your playbook or inventory:
+
+- `llc_performance_profile_name`: Name of the performance profile (default: "performance")
+- `llc_performance_profile_namespace`: Namespace where the profile will be created (default: "openshift-cluster-node-tuning-operator")
+- `pp_kubeconfig`: Path to kubeconfig file (optional)
+
+## Usage
+
+Include this role in your playbook:
+
+```yaml
+- hosts: localhost
+  roles:
+    - llc
+```
+
+Or with custom variables:
+
+```yaml
+- hosts: localhost
+  vars:
+    llc_performance_profile_name: "my-llc-profile"
+  roles:
+    - llc
+```
+
+## Requirements
+
+- kubernetes.core collection
+- Access to OpenShift cluster with cluster-admin privileges
+- Node Feature Discovery and Performance Addon Operator installed

roles/llc/defaults/main.yml

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+---
+llc_performance_profile_name: performance
+llc_performance_profile_namespace: openshift-cluster-node-tuning-operator

roles/llc/tasks/main.yml

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+---
+- name: Create LLC performance profile
+  kubernetes.core.k8s:
+    kubeconfig: "{{ pp_kubeconfig | default(omit) }}"
+    state: present
+    definition:
+      apiVersion: performance.openshift.io/v2
+      kind: PerformanceProfile
+      metadata:
+        name: "{{ llc_performance_profile_name }}"
+        namespace: "{{ llc_performance_profile_namespace }}"
+      spec:
+        additionalKernelArgs:
+          - module_blacklist=irdma
+        cpu:
+          isolated: 2-255,258-511
+          reserved: 0-1,256-257
+        machineConfigPoolSelector:
+          machineconfiguration.openshift.io/role: worker-cnf
+        hugepages:
+          defaultHugepagesSize: 1G
+          pages:
+            - count: 1
+              node: 0
+              size: 1G
+            - count: 128
+              node: 1
+              size: 2M
+        net:
+          userLevelNetworking: true
+        nodeSelector:
+          node-role.kubernetes.io/worker-cnf: ""
+        numa:
+          topologyPolicy: single-numa-node
+        realTimeKernel:
+          enabled: false
+        workloadHints:
+          highPowerConsumption: true
+          perPodPowerManagement: false
+          realTime: true
+
+- name: Wait for performance profile to be applied
+  kubernetes.core.k8s_info:
+    kubeconfig: "{{ pp_kubeconfig | default(omit) }}"
+    api_version: performance.openshift.io/v2
+    kind: PerformanceProfile
+    name: "{{ llc_performance_profile_name }}"
+    namespace: "{{ llc_performance_profile_namespace }}"
+  register: performance_profile_status
+  until:
+    - "'resources' in performance_profile_status"
+    - performance_profile_status.resources | length > 0
+    - performance_profile_status.resources[0].status is defined
+  retries: 30
+  delay: 10