renes_start.sh

#!/bin/bash

# Requires the following variables
# KUBECTL: kubectl command
# OSMNS: OSM namespace in the cluster vim
# VACC: "pod_id" or "deploy/deployment_id" of the access vnf
# VCPE: "pod_id" or "deploy/deployment_id" of the cpd vnf
# HOMETUNIP: the ip address for the home side of the tunnel
# VNFTUNIP: the ip address for the vnf side of the tunnel
# VCPEPUBIP: the public ip address for the vcpe
# VCPEGW: the default gateway for the vcpe

set -u # to verify variables are defined
: $KUBECTL
: $OSMNS
: $VACC
: $VCPE
: $HOMETUNIP
: $VNFTUNIP
: $VCPEPUBIP
: $VCPEGW

if [[ ! $VACC =~ "helmchartrepo-accesschart"  ]]; then
    echo ""       
    echo "ERROR: incorrect <access_deployment_id>: $VACC"
    exit 1
fi

if [[ ! $VCPE =~ "helmchartrepo-cpechart"  ]]; then
    echo ""       
    echo "ERROR: incorrect <cpe_deployment_id>: $VCPE"
    exit 1
fi

ACC_EXEC="$KUBECTL exec -n $OSMNS $VACC --"
CPE_EXEC="$KUBECTL exec -n $OSMNS $VCPE --"

# Router por defecto en red residencial
VCPEPRIVIP="192.168.255.1"

# Router por defecto inicial en k8s (calico)
K8SGW="169.254.1.1"

## 1. Obtener IPs de las VNFs
echo "## 1. Obtener IPs de las VNFs"
IPACCESS=`$ACC_EXEC hostname -I | awk '{print $1}'`
echo "IPACCESS = $IPACCESS"

IPCPE=`$CPE_EXEC hostname -I | awk '{print $1}'`
echo "IPCPE = $IPCPE"

## 2. Iniciar el Servicio OpenVirtualSwitch en cada VNF:
echo "## 2. Iniciar el Servicio OpenVirtualSwitch en cada VNF"
$ACC_EXEC service openvswitch-switch start
$CPE_EXEC service openvswitch-switch start

## 3. En VNF:access agregar un bridge y configurar IPs y rutas
echo "## 3. En VNF:access agregar un bridge y configurar IPs y rutas"
$ACC_EXEC ovs-vsctl add-br brint
$ACC_EXEC ifconfig net1 $VNFTUNIP/24
$ACC_EXEC ovs-vsctl add-port brint vxlanacc -- set interface vxlanacc type=vxlan options:remote_ip=$HOMETUNIP
$ACC_EXEC ovs-vsctl add-port brint vxlanint -- set interface vxlanint type=vxlan options:remote_ip=$IPCPE options:key=inet options:dst_port=8742
$ACC_EXEC ip route add $IPCPE/32 via $K8SGW

## 4. En VNF:cpe agregar un bridge y configurar IPs y rutas
echo "## 4. En VNF:cpe agregar un bridge y configurar IPs y rutas"
$CPE_EXEC ovs-vsctl add-br brint
$CPE_EXEC ifconfig brint $VCPEPRIVIP/24
$CPE_EXEC ovs-vsctl add-port brint vxlanint -- set interface vxlanint type=vxlan options:remote_ip=$IPACCESS options:key=inet options:dst_port=8742
$CPE_EXEC ifconfig brint mtu 1400
$CPE_EXEC ifconfig net1 $VCPEPUBIP/24
$CPE_EXEC ip route add $IPACCESS/32 via $K8SGW
$CPE_EXEC ip route del 0.0.0.0/0 via $K8SGW
$CPE_EXEC ip route add 0.0.0.0/0 via $VCPEGW

## 5. En VNF:cpe iniciar Servidor DHCP
echo "## 5. En VNF:cpe iniciar Servidor DHCP"
$CPE_EXEC sed -i 's/homeint/brint/' /etc/default/isc-dhcp-server
$CPE_EXEC service isc-dhcp-server restart
sleep 10

## 6. En VNF:cpe activar NAT para dar salida a Internet
echo "## 6. En VNF:cpe activar NAT para dar salida a Internet"
$CPE_EXEC /usr/bin/vnx_config_nat brint net1