This article helps you to deploy the nonrtric components in your local VM in minikube environment.

Prerequisite

Docker

Install Minikube

Login into your vm and run the below command as sudo user in the terminal. This will install the latest version of minikube in your vm.

minikube install

curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
  && chmod +x minikube

sudo mkdir -p /usr/local/bin/
sudo install minikube /usr/local/bin/

Start minikube

You can start the minikube with the below command. Check Troubleshoot section for any potential errors.

start minikube

sudo minikube start --vm-driver=none

If the above command is successful, you should see the below logs in your terminal,

If there are no issues then you could see below success message,

Install Kubectl

Kubectl command enables us to run commands against k8's cluster.

install kubectl

curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl

chmod +x ./kubectl

sudo mv ./kubectl /usr/local/bin/kubectl

kubectl version --client
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.3", GitCommit:"2e7996e3e2712684bc73f0dec0200d64eec7fe40", GitTreeState:"clean", BuildDate:"2020-05-20T12:52:00Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}

Install Helm

Run the below command to install helm version 2.16,

install Helm

curl -L https://git.io/get_helm.sh | bash

Run the below command to install latest helm, Create yaml file to define the service account & cluster role binding for helm,

helm tiller

cat > tiller-serviceaccount.yaml << EOF
apiVersion: v1
kind: ServiceAccount
metadata:
  name: tiller
  namespace: kube-system
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: tiller-clusterrolebinding
subjects:
- kind: ServiceAccount
  name: tiller
  namespace: kube-system
roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: ""
EOF

Create ServiceAccount

sudo kubectl create -f tiller-serviceaccount.yaml

helm init

helm init --service-account tiller --upgrade

After initializing helm you can call helm version and you should see below response,

Install Nonrtric

Clone IT/dep repo and go to /dep/bin and run below command,

Install nonrtric

./deploy-nonrtric -f ../nonrtric/RECIPE_EXAMPLE/example_recipe.yaml

If the deployment is successful, you could below logs,

Note: It may take a while for A1 controller image to be downloaded.

Kubectl -n nonrtric get pod, will show pod status

Troubleshoot

Install Conntrack

When you run minikube start you may get below error. Basically this is connection tracking module needed for kubernetes.

Install conntrack,

install conntrack

sudo apt-get install conntrack

Turn off swap

Once k8's commands are installed , minikube will start the initialization process and you may get below error,

Simply turn off the swap,

swap-turnoff

sudo swapoff -a

Increase the CPU

You need to increase the processors of the VM. To this go to the virtual box settings and increase it to 2.

Install socat

Install socat

apt install socat

Version Details

docker - 19.03
helm - 2.16
minikube - 1.11
kubernetes - 1.18

Setup

All the above setup is done in Oracle Virtual box VM and you can try it in different OS's and feel free to update this page

You have Oracle Virtual box installed with Ubuntu VM.

For more information, refer

https://www.virtualbox.org/

https://ubuntu.com/download/desktop

Alternative to Deploy NONRTRIC in Minikube

There is an alternative way, described in the procedure below to run NonRT-RIC kubenetes cluster in Minikube running on Oracle Virtual Box with Ubuntu 22.04.

Via an installation script that brings up Minikube and allow to deploy NonRT-RIC cluster on it. Besides, the Kubernetes GUI could be started to see overall deployment.

Prerequisite

VirtualBox version 6.1. (Can be downloaded from this page Download VirtualBox)

Install Ubuntu 22.04

Ubuntu version 22.04. (Can be downloaded from this page Download Ubuntu)

Basic configuration of Ubuntu on Virtual Box can be found below.

Install Curl and Git

###Install Curl###
$ sudo apt install curl
 
###Install Git###
$ sudo apt install git

Install Minikube

Minikube installer on Ubuntu 22.04

#!/bin/bash
 
# Script to run as root in Ubuntu 22.04 running on Oracle Virtual Box.
# This will bring up MiniKube running. For further Non-RT RIC installation, the related block must uncomment and run.
# NOTE: Do 'sudo su' before running the script
# NOTE: Before start to installation, ensure that Curl, Git and Wget are ready to use!
 
###Log all cmds to stdout###
set -x
 
###Fetch and install Docker###
curl -fsSL https://get.docker.com -o get-docker.sh
 
sh get-docker.sh
 
###Install Conntrack###
apt-get install conntrack
 
###Install Socat###
apt install socat
 
###Install GO Lang###
wget https://storage.googleapis.com/golang/getgo/installer_linux
chmod +x ./installer_linux
./installer_linux
source ~/.bash_profile
 
###Install cri-dockerd###
git clone https://github.com/Mirantis/cri-dockerd.git
cd cri-dockerd
mkdir bin
go build -o bin/cri-dockerd
mkdir -p /usr/local/bin
install -o root -g root -m 0755 bin/cri-dockerd /usr/local/bin/cri-dockerd
cp -a packaging/systemd/* /etc/systemd/system
sed -i -e 's,/usr/bin/cri-dockerd,/usr/local/bin/cri-dockerd,' /etc/systemd/system/cri-docker.service
systemctl daemon-reload
systemctl enable cri-docker.service
systemctl enable --now cri-docker.socket
cd ..
 
###Install Crictl###
VERSION="v1.25.0"
wget https://github.com/kubernetes-sigs/cri-tools/releases/download/$VERSION/crictl-$VERSION-linux-amd64.tar.gz
sudo tar zxvf crictl-$VERSION-linux-amd64.tar.gz -C /usr/local/bin
rm -f crictl-$VERSION-linux-amd64.tar.gz
 
###Fetch and install Minikube###
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
 && chmod +x minikube
mkdir -p /usr/local/bin/
install minikube /usr/local/bin/
 
###Fetch and install Kubectl###
curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl
chmod +x ./kubectl
mv ./kubectl /usr/local/bin/kubectl
kubectl version --client #Just print the version
 
###Fetch Helm 3###
curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3
chmod 700 get_helm.sh
./get_helm.sh
 
###exit root###
exit
 
###Add user to docker group###
sudo usermod -aG docker $USER && newgrp docker
 
 
##################################################################################
## Clone dep repo and deploy Non-RT RIC components                             ###
## Uncomment the following lines to install Non-RT RIC (can also be done later)###
##################################################################################
#git clone "https://gerrit.o-ran-sc.org/r/it/dep"
#cd dep/bin
#sudo ./deploy-nonrtric -f ../nonrtric/RECIPE_EXAMPLE/example_recipe.yaml

Start Minikube

Start Minikube

###Start minikube###
minikube start
 
###Check status###
$ minikube status
$ kubectl get pods -n kube-system

Open the Kubernetes Dashboard

Open the Kubernetes Dashboard

###Start dashboard###
$ minikube dashboard