Adds initial usrp ansible role content

Change-Id: I4e1e308aa7e9e2f6db04bc8a344b8a4f8f63c61a
diff --git a/.cookiecutter_params.json b/.cookiecutter_params.json
new file mode 100644
index 0000000..5edbea9
--- /dev/null
+++ b/.cookiecutter_params.json
@@ -0,0 +1,24 @@
+{
+    "_template": "../cookiecutters/role",
+    "author": "Open Networking Foundation",
+    "company": "Open Networking Foundation",
+    "description": "Prepare a node for USRP related services in sdran",
+    "email": "support@opennetworking.org",
+    "issue_tracker_url": "https://jira.opennetworking.org/",
+    "license": "Apache-2.0",
+    "min_ansible_version": "2.9.5",
+    "molecule_privileged": "true",
+    "platform": "Ubuntu 18.04",
+    "platforms": {
+        "Ubuntu": [
+            "16.04",
+            "18.04"
+        ]
+    },
+    "role_defaults": {
+        "example_default1": "example_value1",
+        "example_default2": "example_value2"
+    },
+    "role_name": "usrp",
+    "year": "2021"
+}
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..3881b73
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=ansible/role/usrp.git
+defaultremote=origin
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 0000000..314bdba
--- /dev/null
+++ b/.reuse/dep5
@@ -0,0 +1,9 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: .cookiecutter_params.json VERSION .gitreview
+Copyright: 2021 Open Networking Foundation
+License: Apache-2.0
+
+Files: files/ettusresearch.gpg
+Copyright: GPG Key Data
+License: CC0-1.0
diff --git a/LICENSES/Apache-2.0.txt b/LICENSES/Apache-2.0.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSES/Apache-2.0.txt
@@ -0,0 +1,202 @@
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new file mode 100644
index 0000000..0e259d4
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@@ -0,0 +1,121 @@
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diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..29d6f2a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,39 @@
+# usrp Makefile
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+SHELL = bash -eu -o pipefail
+
+.DEFAULT_GOAL := help
+.PHONY: test lint yamllint ansiblelint license help
+
+test: ## run tests on the playbook with molecule
+	molecule --version
+	molecule test
+
+lint: yamllint ansiblelint ## run all lint checks
+
+# all YAML files
+YAML_FILES ?= $(shell find . -type f \( -name '*.yaml' -o -name '*.yml' \) -print )
+
+yamllint: ## lint check with yamllint
+	yamllint --version
+	yamllint \
+    -d "{extends: default, rules: {line-length: {max: 99}}}" \
+    -s $(YAML_FILES)
+
+ansiblelint: ## lint check with ansible-lint
+	ansible-lint --version
+	ansible-lint -v .
+	ansible-lint -v molecule/*/*
+
+license: ## Check license with the reuse tool
+	reuse --version
+	reuse --root . lint
+
+help: ## Print help for each target
+	@echo usrp test targets
+	@echo
+	@grep '^[[:alnum:]_-]*:.* ##' $(MAKEFILE_LIST) \
+    | sort | awk 'BEGIN {FS=":.* ## "}; {printf "%-25s %s\n", $$1, $$2};'
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0ca44f7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,40 @@
+<!--
+SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+--!>
+# usrp
+
+This repository will be used in a pre-deployment stage, to configure compute nodes
+(e.g., NUCs) connected to USRPs that will become part of a k8s cluster in an Aether pod.
+The goal is to have the compute nodes ready for receiving the provisioning of specific
+sdran helm charts, i.e., the charts related to OpenAir Interface (OAI) docker images.
+Those images utilize the USRPs in the sdran deployments, and need specific kernel
+configurations and OS settings.
+
+## Requirements
+
+Minimum ansible version: 2.9.5
+
+## Defaults
+
+List of default values for variables:
+* `usrp_reboot: true`
+* `update_grub: true`
+
+
+## Example Playbook
+
+```yaml
+
+- name: Configure aether compute nodes
+  hosts: aethercomputeusrp
+  become: true
+  roles:
+    - usrp
+```
+
+## License and Author
+
+© 2021 Open Networking Foundation <support@opennetworking.org>
+
+License: Apache-2.0
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..c0ab82c
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.0.1-dev
diff --git a/defaults/main.yml b/defaults/main.yml
new file mode 100644
index 0000000..c313f9c
--- /dev/null
+++ b/defaults/main.yml
@@ -0,0 +1,8 @@
+---
+# usrp defaults/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+usrp_reboot: true
+update_grub: true
diff --git a/files/ettusresearch.gpg b/files/ettusresearch.gpg
new file mode 100644
index 0000000..cdd58af
--- /dev/null
+++ b/files/ettusresearch.gpg
@@ -0,0 +1,28 @@
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diff --git a/handlers/main.yml b/handlers/main.yml
new file mode 100644
index 0000000..e94d99e
--- /dev/null
+++ b/handlers/main.yml
@@ -0,0 +1,14 @@
+---
+# usrp handlers/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: update-grub2
+  when: update_grub
+  command:
+    cmd: update-grub2
+
+- name: restart-cpufrequtils
+  command:
+    cmd: /etc/init.d/cpufrequtils restart
diff --git a/meta/main.yml b/meta/main.yml
new file mode 100644
index 0000000..516b04c
--- /dev/null
+++ b/meta/main.yml
@@ -0,0 +1,27 @@
+---
+# usrp meta/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+galaxy_info:
+  author: Open Networking Foundation
+  description: Prepare a node for USRP related services in sdran
+  company: Open Networking Foundation
+
+  issue_tracker_url: https://jira.opennetworking.org/
+
+  license: Apache-2.0
+
+  min_ansible_version: 2.9.5
+
+  platforms:
+    - name: Ubuntu
+      versions:
+        - "16.04"
+        - "18.04"
+
+  galaxy_tags:
+    - usrp
+
+dependencies: []
diff --git a/molecule/default/converge.yml b/molecule/default/converge.yml
new file mode 100644
index 0000000..57be686
--- /dev/null
+++ b/molecule/default/converge.yml
@@ -0,0 +1,15 @@
+---
+# usrp molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Converge
+  hosts: all
+  tasks:
+    - name: "Include usrp"
+      include_role:
+        name: "usrp"
+      vars:
+        usrp_reboot: false
+        update_grub: false
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
new file mode 100644
index 0000000..c8cc099
--- /dev/null
+++ b/molecule/default/molecule.yml
@@ -0,0 +1,20 @@
+---
+# usrp molecule/default/molecule.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: "ubuntu-18.04-priv"
+    image: "quay.io/paulfantom/molecule-systemd:ubuntu-18.04"
+    privileged: true
+    volumes:
+      - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
+provisioner:
+  name: ansible
+verifier:
+  name: ansible
diff --git a/molecule/default/verify.yml b/molecule/default/verify.yml
new file mode 100644
index 0000000..ad90b61
--- /dev/null
+++ b/molecule/default/verify.yml
@@ -0,0 +1,12 @@
+---
+# usrp molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Verify
+  hosts: all
+  tasks:
+  - name: example assertion
+    assert:
+      that: true
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
diff --git a/tasks/main.yml b/tasks/main.yml
new file mode 100644
index 0000000..2cbe44a
--- /dev/null
+++ b/tasks/main.yml
@@ -0,0 +1,11 @@
+---
+# usrp tasks/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: include OS-specific vars
+  include_vars: "{{ ansible_os_family }}.yml"
+
+- name: include OS-specific tasks
+  include_tasks: "{{ ansible_os_family }}.yml"
diff --git a/vars/Debian.yml b/vars/Debian.yml
new file mode 100644
index 0000000..347f69a
--- /dev/null
+++ b/vars/Debian.yml
@@ -0,0 +1,11 @@
+---
+# usrp vars/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+#
+# NOTE: Only put platform/OS-specific variables in this file.
+# Put all other variables in the 'defaults/main.yml' file.
+
+usrp_reboot: true
+update_grub: true