GIT URL;
--------------------------------
https://github.com/Orange-OpenSource/towards5gs-helm

N6 network unreachable issue:
----------------------------------------
Updated n6 gateway to '0.0.0.0' then upf worked.
---------------------------------------
Steps:
1. Cluster with kubernetes v1.24.4 and kernel 5.4.0-128-generic. [https://github.com/Orange-OpenSource/towards5gs-helm/tree/main/charts/free5gc#networks-configuration]
2. Attach second interface to all the nodes and  follow below steps:
	-> ifconfig <interface_name> up
	-> sudo ifconfig <interface_name> <IPAddress from xerces(172.16.0.216)> netmask 255.255.0.0  broadcast <first 2 blocks of IP>.255.255
3. Intsall GTPG on all nodes.
	git clone https://github.com/PrinzOwO/gtp5g.git
	cd gtp5g
	apt install make
	make
	sudo make install
	Note:
	-> If gcc command not found? Install below
		sudo apt-get install gcc

4. Install Calicos plugin and follow multus CNI readme to setup [https://github.com/k8snetworkplumbingwg/multus-cni]
5. Edit the main values yml file to point to the actual interface names.
6. Create presistent volume by using below
7. If some plugins not available in the path '/opt/cni/bin'---> Follow below
	-> Follow below 'steps to execute on each node'

*********************************************
cat <<EOF | kubectl apply -n free5gc -f -
apiVersion: v1
kind: PersistentVolume
metadata:
  name: example-local-pv9
  labels:
    project: test-free5gc
spec:
  capacity:
    storage: 8Gi
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  local:
    path: /home/ubuntu/kubedata/
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - (10.2.0.136 <Worker-Node-IPAddress>)
EOF
*******************************************************

6. If mongodb making issue create the local path mentioned in the above '/home/ubuntu/kubedata/'
	-> To create the path we need to follow below
		-> docker ps --> get the conatiner id of the kubelet
		-> exec to the kubelet container then create dir


7. Values.yml 

deployMongoDB: true
deployAMF: true
deployAUSF: false
deployN3IWF: false
deployNRF: true
deployNSSF: false
deployPCF: false
deploySMF: true
deployUDM: false
deployUDR: false
deployUPF: true
deployWEBUI: true







Installation guide:
-------------------------------------------
https://www.free5gc.org/installations/stage-1-all-in-one/
https://medium.com/rahasak/deploying-5g-core-network-with-free5gc-kubernets-and-helm-charts-29741cea3922

WEbUI Login details :
-----------------------------------
https://www.free5gc.org/installations/stage-2-standalone-5g/


UPF-n6network issue:
------------------------------
https://github.com/k8snetworkplumbingwg/multus-cni/issues/809

solving the 'static' plugin not found issue:
-----------------------------------------------------
https://github.com/containernetworking/plugins/issues/637

Install snap which will require to install go
$ sudo apt install -y snap $ snap version

Install go using snap
$ sudo snap install go --classic $ which go
If you have issue, logout and login again.

Install CNI Plugins

Login to each worker node and execute following steps

Download the CNI plugin from GIT repo using clone
# git clone https://github.com/containernetworking/plugins.git
# cd plugins
# ls -l

Build the CNI plugin binaries using build_linux.sh script. Bi8naries will be in the /plugins/bin directory
# cd plugins/
# ./build_linux.sh

Verify all binaries are built
# cd bin/
# ls -l

Copy all/required binary files to /opt/cni/bin/ directory. Following example showing only static plugin
# cp static /opt/cni/bin/

Verify required binaries are transferred to /opt/cni/bin/ directory
# cd /opt/cni/bin/
# ls -l


Steps to execute on each node:
------------------------------------------------
mkdir CNI_plugins
cd CNI_plugins
sudo apt install -y snap

sudo snap install go --classic
git clone https://github.com/containernetworking/plugins.git
cd plugins
ls -l
./build_linux.sh
cd bin/
ls -l 
sudo cp * /opt/cni/bin/
ls -l /opt/cni/bin/

------------------------------------------------------
Followed this doc initially:
---------------------
https://github.com/Orange-OpenSource/towards5gs-helm/tree/main/charts/free5gc#networks-configuration