Configure route to vBRG via vBNG on vGMUX
[demo.git] / vnfs / vCPE / scripts / v_gmux_install.sh
index b43cf7b..5e98fe1 100644 (file)
@@ -4,7 +4,30 @@ REPO_URL_BLOB=$(cat /opt/config/repo_url_blob.txt)
 REPO_URL_ARTIFACTS=$(cat /opt/config/repo_url_artifacts.txt)
 DEMO_ARTIFACTS_VERSION=$(cat /opt/config/demo_artifacts_version.txt)
 INSTALL_SCRIPT_VERSION=$(cat /opt/config/install_script_version.txt)
+VPP_SOURCE_REPO_URL=$(cat /opt/config/vpp_source_repo_url.txt)
+VPP_SOURCE_REPO_BRANCH=$(cat /opt/config/vpp_source_repo_branch.txt)
+VPP_PATCH_URL=$(cat /opt/config/vpp_patch_url.txt)
+HC2VPP_SOURCE_REPO_URL=$(cat /opt/config/hc2vpp_source_repo_url.txt)
+HC2VPP_SOURCE_REPO_BRANCH=$(cat /opt/config/hc2vpp_source_repo_branch.txt)
+HC2VPP_PATCH_URL=$(cat /opt/config/hc2vpp_patch_url.txt)
+LIBEVEL_PATCH_URL=$(cat /opt/config/libevel_patch_url.txt)
 CLOUD_ENV=$(cat /opt/config/cloud_env.txt)
+MUX_GW_IP=$(cat /opt/config/mux_gw_net_ipaddr.txt)
+MUX_GW_CIDR=$(cat /opt/config/mux_gw_net_cidr.txt)
+MUX_TO_BNG_IP=$(cat /opt/config/mux_to_bng_net_ipaddr.txt)
+BNG_MUX_CIDR=$(cat /opt/config/bng_mux_net_cidr.txt)
+BRG_BNG_CIDR=$(cat /opt/config/brg_bng_net_cidr.txt)
+BNG_TO_MUX_IP=$(cat /opt/config/bng_to_mux_net_ipaddr.txt)
+
+# Build states are:
+# 'build' - just build the code
+# 'done' - code is build, install and setup
+# 'auto' - bulid, install and setup
+BUILD_STATE="auto"
+if [[ -f /opt/config/compile_state.txt ]]
+then
+    BUILD_STATE=$(cat /opt/config/compile_state.txt)
+fi
 
 # Convert Network CIDR to Netmask
 cdr2mask () {
@@ -15,73 +38,562 @@ cdr2mask () {
 }
 
 # OpenStack network configuration
-if [[ $CLOUD_ENV == "openstack" ]]
+if [[ $BUILD_STATE != "build" ]]
 then
-       echo 127.0.0.1 $(hostname) >> /etc/hosts
-
-       # Allow remote login as root
-       mv /root/.ssh/authorized_keys /root/.ssh/authorized_keys.bk
-       cp /home/ubuntu/.ssh/authorized_keys /root/.ssh
-
-       MTU=$(/sbin/ifconfig | grep MTU | sed 's/.*MTU://' | sed 's/ .*//' | sort -n | head -1)
-
-       IP=$(cat /opt/config/bng_mux_net_ipaddr.txt)
-       BITS=$(cat /opt/config/bng_mux_net_cidr.txt | cut -d"/" -f2)
-       NETMASK=$(cdr2mask $BITS)
-       echo "auto eth1" >> /etc/network/interfaces
-       echo "iface eth1 inet static" >> /etc/network/interfaces
-       echo "    address $IP" >> /etc/network/interfaces
-       echo "    netmask $NETMASK" >> /etc/network/interfaces
-       echo "    mtu $MTU" >> /etc/network/interfaces
-
-       IP=$(cat /opt/config/oam_ipaddr.txt)
-       BITS=$(cat /opt/config/oam_cidr.txt | cut -d"/" -f2)
-       NETMASK=$(cdr2mask $BITS)
-       echo "auto eth2" >> /etc/network/interfaces
-       echo "iface eth2 inet static" >> /etc/network/interfaces
-       echo "    address $IP" >> /etc/network/interfaces
-       echo "    netmask $NETMASK" >> /etc/network/interfaces
-       echo "    mtu $MTU" >> /etc/network/interfaces
-
-       IP=$(cat /opt/config/mux_gw_net_ipaddr.txt)
-       BITS=$(cat /opt/config/mux_gw_net_cidr.txt | cut -d"/" -f2)
-       NETMASK=$(cdr2mask $BITS)
-       echo "auto eth3" >> /etc/network/interfaces
-       echo "iface eth3 inet static" >> /etc/network/interfaces
-       echo "    address $IP" >> /etc/network/interfaces
-       echo "    netmask $NETMASK" >> /etc/network/interfaces
-       echo "    mtu $MTU" >> /etc/network/interfaces
-
-       ifup eth1
-       ifup eth2
-       ifup eth3
-fi
+    if [[ $CLOUD_ENV == "openstack" ]]
+    then
+        echo 127.0.0.1 $(hostname) >> /etc/hosts
+
+        # Allow remote login as root
+        mv /root/.ssh/authorized_keys /root/.ssh/authorized_keys.bk
+        cp /home/ubuntu/.ssh/authorized_keys /root/.ssh
+
+        MTU=$(/sbin/ifconfig | grep MTU | sed 's/.*MTU://' | sed 's/ .*//' | sort -n | head -1)
 
-# Download required dependencies
-add-apt-repository -y ppa:openjdk-r/ppa
-apt-get update
-apt-get install -y wget openjdk-8-jdk apt-transport-https ca-certificates g++ libcurl4-gnutls-dev
-sleep 1
-
-# Download DHCP config files
-cd /opt
-wget $REPO_URL_BLOB/org.onap.demo/vnfs/vcpe/$INSTALL_SCRIPT_VERSION/v_gmux_init.sh
-wget $REPO_URL_BLOB/org.onap.demo/vnfs/vcpe/$INSTALL_SCRIPT_VERSION/v_gmux.sh
-chmod +x v_gmux_init.sh
-chmod +x v_gmux.sh
-mv v_gmux.sh /etc/init.d
-update-rc.d v_gmux.sh defaults
-
-# Rename network interface in openstack Ubuntu 16.04 images. Then, reboot the VM to pick up changes
-if [[ $CLOUD_ENV != "rackspace" ]]
+        IP=$(cat /opt/config/oam_ipaddr.txt)
+        BITS=$(cat /opt/config/oam_cidr.txt | cut -d"/" -f2)
+        NETMASK=$(cdr2mask $BITS)
+        echo "auto eth2" >> /etc/network/interfaces
+        echo "iface eth2 inet static" >> /etc/network/interfaces
+        echo "    address $IP" >> /etc/network/interfaces
+        echo "    netmask $NETMASK" >> /etc/network/interfaces
+        echo "    mtu $MTU" >> /etc/network/interfaces
+
+        ifup eth2
+    fi
+fi  # endif BUILD_STATE != "build"
+
+if [[ $BUILD_STATE != "done" ]]
 then
-       sed -i "s/GRUB_CMDLINE_LINUX=.*/GRUB_CMDLINE_LINUX=\"net.ifnames=0 biosdevname=0\"/g" /etc/default/grub
-       grub-mkconfig -o /boot/grub/grub.cfg
-       sed -i "s/ens[0-9]*/eth0/g" /etc/network/interfaces.d/*.cfg
-       sed -i "s/ens[0-9]*/eth0/g" /etc/udev/rules.d/70-persistent-net.rules
-       echo 'network: {config: disabled}' >> /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
-       echo "APT::Periodic::Unattended-Upgrade \"0\";" >> /etc/apt/apt.conf.d/10periodic
-       reboot
-fi
+    # Download required dependencies
+    echo "deb http://ppa.launchpad.net/openjdk-r/ppa/ubuntu $(lsb_release -c -s) main" >>  /etc/apt/sources.list.d/java.list
+    echo "deb-src http://ppa.launchpad.net/openjdk-r/ppa/ubuntu $(lsb_release -c -s) main" >>  /etc/apt/sources.list.d/java.list
+    apt-get update
+    apt-get install --allow-unauthenticated -y wget openjdk-8-jdk apt-transport-https ca-certificates g++ libcurl4-gnutls-dev
+    sleep 1
+
+    # Install the tools required for download codes
+    apt-get install -y expect git patch make linux-image-extra-`uname -r`
+
+    #Download and build the VPP codes
+    cd /opt
+    git clone ${VPP_SOURCE_REPO_URL} -b ${VPP_SOURCE_REPO_BRANCH} vpp
+    wget -O Vpp-Add-VES-agent-for-vG-MUX.patch ${VPP_PATCH_URL} 
+
+    cd vpp
+    patch -p1 < ../Vpp-Add-VES-agent-for-vG-MUX.patch
+    expect -c "
+            spawn make install-dep;
+            expect {
+                    \"Do you want to continue?*\" {send \"Y\r\"; interact}
+            }
+    "
+
+    # Install the evel-library first since we need the lib
+    cd /opt
+    apt-get install -y libcurl4-openssl-dev
+    git clone http://gerrit.onap.org/r/demo
+    wget -O vCPE-vG-MUX-libevel-fixup.patch ${LIBEVEL_PATCH_URL} 
+    cd demo
+    patch -p1 < ../vCPE-vG-MUX-libevel-fixup.patch
+    cd vnfs/VES5.0/evel/evel-library/bldjobs 
+    make
+    cp ../libs/x86_64/libevel.so /usr/lib
+    ldconfig
+
+    cd /opt/vpp/build-root
+    ./bootstrap.sh
+    make V=0 PLATFORM=vpp TAG=vpp install-deb
+
+    # Install the VPP package
+    apt install -y python-ply-lex-3.5 python-ply-yacc-3.5 python-pycparser python-cffi
+    dpkg -i *.deb
+    systemctl stop vpp
+fi  # endif BUILD_STATE != "done"
+
+if [[ $BUILD_STATE != "build" ]]
+then
+    # Auto-start configuration for the VPP
+    cat > /etc/vpp/startup.conf << EOF
+
+unix {
+  nodaemon
+  log /tmp/vpp.log
+  full-coredump
+  cli-listen localhost:5002
+  startup-config /etc/vpp/setup.gate
+}
+
+api-trace {
+  on
+}
+
+api-segment {
+  gid vpp
+}
+
+cpu {
+       ## In the VPP there is one main thread and optionally the user can create worker(s)
+       ## The main thread and worker thread(s) can be pinned to CPU core(s) manually or automatically
+
+       ## Manual pinning of thread(s) to CPU core(s)
+
+       ## Set logical CPU core where main thread runs
+       # main-core 1
+
+       ## Set logical CPU core(s) where worker threads are running
+       # corelist-workers 2-3,18-19
+
+       ## Automatic pinning of thread(s) to CPU core(s)
+
+       ## Sets number of CPU core(s) to be skipped (1 ... N-1)
+       ## Skipped CPU core(s) are not used for pinning main thread and working thread(s).
+       ## The main thread is automatically pinned to the first available CPU core and worker(s)
+       ## are pinned to next free CPU core(s) after core assigned to main thread
+       # skip-cores 4
+
+       ## Specify a number of workers to be created
+       ## Workers are pinned to N consecutive CPU cores while skipping "skip-cores" CPU core(s)
+       ## and main thread's CPU core
+       # workers 2
+
+       ## Set scheduling policy and priority of main and worker threads
+
+       ## Scheduling policy options are: other (SCHED_OTHER), batch (SCHED_BATCH)
+       ## idle (SCHED_IDLE), fifo (SCHED_FIFO), rr (SCHED_RR)
+       # scheduler-policy fifo
+
+       ## Scheduling priority is used only for "real-time policies (fifo and rr),
+       ## and has to be in the range of priorities supported for a particular policy
+       # scheduler-priority 50
+}
+
+# dpdk {
+       ## Change default settings for all intefaces
+       # dev default {
+               ## Number of receive queues, enables RSS
+               ## Default is 1
+               # num-rx-queues 3
+
+               ## Number of transmit queues, Default is equal
+               ## to number of worker threads or 1 if no workers treads
+               # num-tx-queues 3
+
+               ## Number of descriptors in transmit and receive rings
+               ## increasing or reducing number can impact performance
+               ## Default is 1024 for both rx and tx
+               # num-rx-desc 512
+               # num-tx-desc 512
+
+               ## VLAN strip offload mode for interface
+               ## Default is off
+               # vlan-strip-offload on
+       # }
+
+       ## Whitelist specific interface by specifying PCI address
+       # dev 0000:02:00.0
+
+       ## Whitelist specific interface by specifying PCI address and in
+       ## addition specify custom parameters for this interface
+       # dev 0000:02:00.1 {
+       #       num-rx-queues 2
+       # }
+
+       ## Change UIO driver used by VPP, Options are: igb_uio, vfio-pci
+       ## and uio_pci_generic (default)
+       # uio-driver vfio-pci
+
+       ## Disable mutli-segment buffers, improves performance but
+       ## disables Jumbo MTU support
+       # no-multi-seg
+
+       ## Increase number of buffers allocated, needed only in scenarios with
+       ## large number of interfaces and worker threads. Value is per CPU socket.
+       ## Default is 16384
+       # num-mbufs 128000
+
+       ## Change hugepages allocation per-socket, needed only if there is need for
+       ## larger number of mbufs. Default is 256M on each detected CPU socket
+       # socket-mem 2048,2048
+# }
+
+EOF
+
+    # Get list of network device PCI bus addresses
+    get_nic_pci_list() {
+        while read -r line ; do
+            if [ "$line" != "${line#*network device}" ]; then
+                echo -n "${line%% *} "
+            fi
+        done < <(lspci)
+    }
+
+    NICS=$(get_nic_pci_list)
+    NICS=`echo ${NICS} | sed 's/[0]\+\([0-9]\)/\1/g' | sed 's/[.:]/\//g'`
+
+    BNG_MUX_NIC=GigabitEthernet`echo ${NICS} | cut -d " " -f 2`  # second interface in list
+    MUX_GW_NIC=GigabitEthernet`echo ${NICS} | cut -d " " -f 4`   # fourth interface in list
+
+    cat > /etc/vpp/setup.gate << EOF
+set int state ${BNG_MUX_NIC} up
+set int ip address ${BNG_MUX_NIC} ${MUX_TO_BNG_IP}/${BNG_MUX_CIDR#*/}
+
+set int state ${MUX_GW_NIC} up
+set int ip address ${MUX_GW_NIC} ${MUX_GW_IP}/${MUX_GW_CIDR#*/}
+ip route add ${BRG_BNG_CIDR} via ${BNG_TO_MUX_IP} ${BNG_MUX_NIC}
+EOF
+
+fi  # endif BUILD_STATE != "build"
+
+if [[ $BUILD_STATE != "done" ]]
+then
+    # Download and install HC2VPP from source
+    cd /opt
+    git clone ${HC2VPP_SOURCE_REPO_URL} -b ${HC2VPP_SOURCE_REPO_BRANCH} hc2vpp
+    wget -O Hc2vpp-Add-VES-agent-for-vG-MUX.patch ${HC2VPP_PATCH_URL}
+
+    apt-get install -y maven
+    mkdir -p ~/.m2
+    cat > ~/.m2/settings.xml << EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- vi: set et smarttab sw=2 tabstop=2: -->
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
+
+  <profiles>
+    <profile>
+      <id>fd.io-release</id>
+      <repositories>
+        <repository>
+          <id>fd.io-mirror</id>
+          <name>fd.io-mirror</name>
+          <url>https://nexus.fd.io/content/groups/public/</url>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+      <pluginRepositories>
+        <pluginRepository>
+          <id>fd.io-mirror</id>
+          <name>fd.io-mirror</name>
+          <url>https://nexus.fd.io/content/repositories/public/</url>
+          <releases>
+            <enabled>true</enabled>
+            <updatePolicy>never</updatePolicy>
+          </releases>
+          <snapshots>
+            <enabled>false</enabled>
+          </snapshots>
+        </pluginRepository>
+      </pluginRepositories>
+    </profile>
+
+    <profile>
+      <id>fd.io-snapshots</id>
+      <repositories>
+        <repository>
+          <id>fd.io-snapshot</id>
+          <name>fd.io-snapshot</name>
+          <url>https://nexus.fd.io/content/repositories/fd.io.snapshot/</url>
+          <releases>
+            <enabled>false</enabled>
+          </releases>
+          <snapshots>
+            <enabled>true</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+      <pluginRepositories>
+        <pluginRepository>
+          <id>fd.io-snapshot</id>
+          <name>fd.io-snapshot</name>
+          <url>https://nexus.fd.io/content/repositories/fd.io.snapshot/</url>
+          <releases>
+            <enabled>false</enabled>
+          </releases>
+          <snapshots>
+            <enabled>true</enabled>
+          </snapshots>
+        </pluginRepository>
+      </pluginRepositories>
+    </profile>
+    <profile>
+      <id>opendaylight-snapshots</id>
+      <repositories>
+        <repository>
+          <id>opendaylight-snapshot</id>
+          <name>opendaylight-snapshot</name>
+          <url>https://nexus.opendaylight.org/content/repositories/opendaylight.snapshot/</url>
+          <releases>
+            <enabled>false</enabled>
+          </releases>
+          <snapshots>
+            <enabled>true</enabled>
+          </snapshots>
+        </repository>
+      </repositories>
+      <pluginRepositories>
+        <pluginRepository>
+          <id>opendaylight-shapshot</id>
+          <name>opendaylight-snapshot</name>
+          <url>https://nexus.opendaylight.org/content/repositories/opendaylight.snapshot/</url>
+          <releases>
+            <enabled>false</enabled>
+          </releases>
+          <snapshots>
+            <enabled>true</enabled>
+          </snapshots>
+        </pluginRepository>
+      </pluginRepositories>
+    </profile>
+  </profiles>
+
+  <activeProfiles>
+    <activeProfile>fd.io-release</activeProfile>
+    <activeProfile>fd.io-snapshots</activeProfile>
+    <activeProfile>opendaylight-snapshots</activeProfile>
+  </activeProfiles>
+</settings>
+EOF
+
+    cd hc2vpp
+    patch -p1 < ../Hc2vpp-Add-VES-agent-for-vG-MUX.patch
+    p_version_snap=$(cat ves/ves-impl/pom.xml | grep -A 1 "jvpp-ves" | tail -1)
+    p_version_snap=$(echo "${p_version_snap%<*}")
+    p_version_snap=$(echo "${p_version_snap#*>}")
+    p_version=$(echo "${p_version_snap%-*}")
+    mkdir -p  ~/.m2/repository/io/fd/vpp/jvpp-ves/${p_version_snap}
+    mvn install:install-file -Dfile=/usr/share/java/jvpp-ves-${p_version}.jar -DgroupId=io.fd.vpp -DartifactId=jvpp-ves -Dversion=${p_version_snap} -Dpackaging=jar
+    mvn clean install -nsu -DskipTests=true
+    l_version=$(cat pom.xml | grep "<version>" | head -1)
+    l_version=$(echo "${l_version%<*}")
+    l_version=$(echo "${l_version#*>}")
+    mv vpp-integration/minimal-distribution/target/vpp-integration-distribution-${l_version}-hc/vpp-integration-distribution-${l_version} /opt/honeycomb
+    sed -i 's/127.0.0.1/0.0.0.0/g' /opt/honeycomb/config/honeycomb.json
+
+    # Disable automatic upgrades
+    if [[ $CLOUD_ENV != "rackspace" ]]
+    then
+        echo "APT::Periodic::Unattended-Upgrade \"0\";" >> /etc/apt/apt.conf.d/10periodic
+        sed -i 's/\(APT::Periodic::Unattended-Upgrade\) "1"/\1 "0"/' /etc/apt/apt.conf.d/20auto-upgrades
+    fi
+fi  # endif BUILD_STATE != "done"
+
+if [[ $BUILD_STATE != "build" ]]
+then
+    # Create systemctl service for Honeycomb
+    cat > /etc/systemd/system/honeycomb.service << EOF
+[Unit]
+Description=Honeycomb Agent for the VPP control plane
+Documentation=https://wiki.fd.io/view/Honeycomb
+Requires=vpp.service
+After=vpp.service
+
+[Service]
+ExecStart=/opt/honeycomb/honeycomb
+Restart=always
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target
+EOF
+    systemctl enable /etc/systemd/system/honeycomb.service
+
+    #Create a systemd service for auto-save
+    cat > /usr/bin/save_config << EOF
+#!/bin/bash
+
+#########################################################################
+#
+#  Copyright (c) 2017 Intel and/or its affiliates.
+# 
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0
+# 
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+##########################################################################
+
+############################### Variables ################################
+VPP_SETUP_GATE=/etc/vpp/setup.gate
+
+############################### Functions ################################
+
+# Write the commands to the startup scripts.
+#
+# We could set VPP configuration to the startup.conf.
+# Write the configuration to the startup scripts so we could
+# restore the system after rebooting.
+#
+write_startup_scripts()
+{
+       local cmd=\${2}
+       local is_add=\${1}
+
+       if [[ \${is_add} == add ]] ;then
+               while read -r line
+               do
+                       if [[ \${line} == \${cmd} ]] ;then
+                               return 0
+                       fi
+               done < \${VPP_SETUP_GATE}
+
+               echo "\${cmd}" >> \${VPP_SETUP_GATE}
+       else
+               while read -r line
+               do
+                       if [[ \${line} == \${cmd} ]] ;then
+                               sed -i "/\${line}/d" \${VPP_SETUP_GATE}
+                               return 0
+                       fi
+               done < \${VPP_SETUP_GATE}
+       fi
+}
+
+# Saves the VES agent configuration to the startup script.
+#
+# Get the current VES agent configuration from the bash command:
+# \$vppctl show ves agent
+#    Server Addr    Server Port Interval Enabled
+#    127.0.0.1        8080         10    True
+# Set the VES agent configuration with the bash command:
+# \$vppctl set ves agent server 127.0.0.1 port 8080 intval 10
+#
+save_ves_config()
+{
+       local server=""
+       local port=""
+       local intval=""
+
+       local ves_config=\`vppctl show ves agent | head -2 | tail -1\`
+       if [ "\${ves_config}" != "" ] ;then
+               server=\`echo \${ves_config} | awk '{ print \$1 }'\`
+               port=\`echo \${ves_config} | awk '{ print \$2 }'\`
+               intval=\`echo \${ves_config} | awk '{ print \$3 }'\`
+               write_startup_scripts add "set ves agent server \${server} port \${port} intval \${intval}"
+       fi
+}
+
+# Save the VxLAN Tunnel Configuration to the startup script.
+#
+# Get the current VxLAN tunnel configuration with bash command:
+# \$vppctl show vxlan tunnel
+#  [0] src 10.3.0.2 dst 10.1.0.20 vni 100 sw_if_index 1 encap_fib_index 0 fib_entry_index 7 decap_next l2
+#  [1] src 10.5.0.20 dst 10.5.0.21 vni 100 sw_if_index 2 encap_fib_index 0 fib_entry_index 8 decap_next l2
+# Set the VxLAN Tunnel with the bash command:
+# \$vppctl create vxlan tunnel src 10.3.0.2 dst 10.1.0.20 vni 100
+# vxlan_tunnel0
+save_vxlan_tunnel()
+{
+       local src=""
+       local dst=""
+       local vni=""
+
+       vppctl show vxlan tunnel | while read line
+       do
+               if [ "\${line}" != "" ] ;then
+                       src=\`echo \${line} | awk '{ print \$3 }'\`
+                       dst=\`echo \${line} | awk '{ print \$5 }'\`
+                       vni=\`echo \${line} | awk '{ print \$7 }'\`
+
+                       write_startup_scripts add "create vxlan tunnel src \${src} dst \${dst} vni \${vni}"
+               fi
+       done
+}
+
+# Save the VxLAN tunnel L2 xconnect configuration to the startup script.
+#
+# Get the Current L2 Address configuration with bash command:
+# \$vppctl show int addr
+# local0 (dn):
+# vxlan_tunnel0 (up):
+#   l2 xconnect vxlan_tunnel1
+# vxlan_tunnel1 (up):
+#   l2 xconnect vxlan_tunnel0
+# Save the VxLAN tunnel L2 xconnect configuration with bash command:
+# \$vppctl set interface l2 xconnect vxlan_tunnel0 vxlan_tunnel1
+#
+save_vxlan_xconnect()
+{
+       local ingress=""
+       local egress=""
+
+       vppctl show int addr | while read line
+       do
+               if [[ \${line} == vxlan_tunnel* ]] ;then
+                       read next
+                       while [[ \${next} != l2* ]] || [[ \${next} == "" ]]
+                       do
+                               line=\`echo \${next}\`
+                               read next
+                       done
+                       if [[ \${next} == l2* ]] ;then
+                               ingress=\`echo \${line} | awk '{ print \$1 }'\`
+                               egress=\`echo \${next} | awk '{ print \$3 }'\`
+                               write_startup_scripts add "set interface l2 xconnect \${ingress} \${egress}"
+                       fi
+               fi
+       done
+}
+
+################################# MAIN ###################################
+
+save_ves_config
+
+save_vxlan_tunnel
+
+save_vxlan_xconnect
+
+EOF
+    chmod a+x /usr/bin/save_config
+    cat > /etc/systemd/system/autosave.service << EOF
+[Unit]
+Description=Run Scripts at Start and Stop
+Requires=vpp.service
+After=vpp.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=true
+ExecStop=/usr/bin/save_config
+
+[Install]
+WantedBy=multi-user.target
+EOF
+    systemctl enable /etc/systemd/system/autosave.service
+
+    # Download DHCP config files
+    cd /opt
+    wget $REPO_URL_BLOB/org.onap.demo/vnfs/vcpe/$INSTALL_SCRIPT_VERSION/v_gmux_init.sh
+    wget $REPO_URL_BLOB/org.onap.demo/vnfs/vcpe/$INSTALL_SCRIPT_VERSION/v_gmux.sh
+    chmod +x v_gmux_init.sh
+    chmod +x v_gmux.sh
+    mv v_gmux.sh /etc/init.d
+    update-rc.d v_gmux.sh defaults
+
+    # Rename network interface in openstack Ubuntu 16.04 images. Then, reboot the VM to pick up changes
+    if [[ $CLOUD_ENV != "rackspace" ]]
+    then
+        sed -i "s/GRUB_CMDLINE_LINUX=.*/GRUB_CMDLINE_LINUX=\"net.ifnames=0 biosdevname=0\"/g" /etc/default/grub
+        grub-mkconfig -o /boot/grub/grub.cfg
+        sed -i "s/ens[0-9]*/eth0/g" /etc/network/interfaces.d/*.cfg
+        sed -i "s/ens[0-9]*/eth0/g" /etc/udev/rules.d/70-persistent-net.rules
+        echo 'network: {config: disabled}' >> /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
+        reboot
+    fi
 
-./v_gmux_init.sh
\ No newline at end of file
+    ./v_gmux_init.sh
+fi  # endif BUILD_STATE != "build"