Adds initial usrp ansible role content

Change-Id: I4e1e308aa7e9e2f6db04bc8a344b8a4f8f63c61a
diff --git a/tasks/Debian.yml b/tasks/Debian.yml
new file mode 100644
index 0000000..a4368df
--- /dev/null
+++ b/tasks/Debian.yml
@@ -0,0 +1,106 @@
+---
+# usrp tasks/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Install apt related prereqs
+  apt:
+    name:
+      - "apt-transport-https"
+      - "ca-certificates"
+      - "gpg"
+      - "software-properties-common"
+    state: "present"
+    update_cache: true
+
+- name: Add ettusresearch apt repo
+  apt_repository:
+    repo: 'ppa:ettusresearch/uhd'
+    mode: 0644
+    update_cache: true
+
+- name: Add ettusresearch apt repo key
+  apt_key:
+    data: "{{ lookup('file','ettusresearch.gpg') }}"
+    state: "present"
+
+- name: Add Official ettusresearch apt repo
+  apt_repository:
+    repo: >-
+      deb http://ppa.launchpad.net/ettusresearch/uhd/ubuntu
+      {{ ansible_lsb['codename'] }} main
+    mode: 0644
+    update_cache: true
+
+- name: Install usrp related packages
+  apt:
+    name:
+      - "linux-image-lowlatency"
+      - "linux-headers-lowlatency"
+      - "cpufrequtils"
+      - "libuhd-dev"
+      - "libuhd003"
+      - "uhd-host"
+    state: "present"
+    update_cache: true
+
+- name: Update grub
+  replace:
+    path: /etc/default/grub
+    regexp: '(^GRUB_CMDLINE_LINUX_DEFAULT=)(.*)$'
+    replace: |
+      '\1"quiet intel_pstate=disable processor.max_cstate=1 intel_idle.max_cstate=0 idle=poll"'
+    backup: true
+  notify:
+    - update-grub2
+
+- name: Blacklist intel powerclamp
+  blockinfile:
+    dest: /etc/modprobe.d/blacklist.conf
+    block: |
+      # for OAI
+      blacklist intel_powerclamp
+    backup: true
+
+- name: Check for existence of file cpufrequtils
+  stat:
+    path: /etc/default/cpufrequtils
+  register: cpufrequtils_file_register
+
+- name: Create file cpufrequtils
+  when: not cpufrequtils_file_register.stat.exists
+  file:
+    path: /etc/default/cpufrequtils
+    state: touch
+    owner: root
+    group: root
+    mode: '0644'
+
+- name: Set cpufrequtils
+  blockinfile:
+    dest: /etc/default/cpufrequtils
+    block: |
+      # for OAI/USRP
+      GOVERNOR="performance"
+    backup: true
+
+- name: Disable ondemand service
+  systemd:
+    name: ondemand.service
+    enabled: false
+  notify:
+    - restart-cpufrequtils
+
+- name: Reboot necessary, flushing handlers
+  meta: flush_handlers
+
+- name: Reboot
+  when: usrp_reboot
+  reboot:
+    msg: "Reboot initiated by Ansible"
+    connect_timeout: 5
+    reboot_timeout: 600
+    pre_reboot_delay: 0
+    post_reboot_delay: 30
+    test_command: whoami