#!/bin/bash # # Copyright (C) 2015 GNS3 Technologies Inc. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # Install GNS3 on a remote Ubuntu LTS server # This create a dedicated user and setup all the package # and optionnaly a VPN # function help { echo "Usage:" >&2 echo "--with-openvpn: Install Open VPN" >&2 echo "--with-iou: Install IOU" >&2 echo "--with-i386-repository: Add the i386 repositories required by IOU if they are not already available on the system. Warning: this will replace your source.list in order to use the official Ubuntu mirror" >&2 echo "--unstable: Use the GNS3 unstable repository" echo "--help: This help" >&2 } function log { echo "=> $1" >&2 } lsb_release -d | grep "LTS" > /dev/null if [ $? != 0 ] then echo "This script can only be run on a Linux Ubuntu LTS release" exit 1 fi # Read the options USE_VPN=0 USE_IOU=0 I386_REPO=0 UNSTABLE=0 TEMP=`getopt -o h --long with-openvpn,with-iou,with-i386-repository,unstable,help -n 'gns3-remote-install.sh' -- "$@"` if [ $? != 0 ] then help exit 1 fi eval set -- "$TEMP" # extract options and their arguments into variables. while true ; do case "$1" in --with-openvpn) USE_VPN=1 shift ;; --with-iou) USE_IOU=1 shift ;; --with-i386-repository) I386_REPO=1 shift ;; --unstable) UNSTABLE=1 shift ;; -h|--help) help exit 1 ;; --) shift ; break ;; *) echo "Internal error! $1" ; exit 1 ;; esac done # Exit in case of error set -e export DEBIAN_FRONTEND="noninteractive" UBUNTU_VERSION=`lsb_release -r -s` if [ "$UBUNTU_VERSION" == "14.04" ] then UBUNTU_CODENAME="trusty" else UBUNTU_CODENAME="xenial" fi log "Add GNS3 repository" if [ "$UBUNTU_CODENAME" == "trusty" ] then if [ $UNSTABLE == 1 ] then cat < /etc/apt/sources.list.d/gns3.list deb http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main deb-src http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main deb http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main deb-src http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main EOFLIST else cat < /etc/apt/sources.list.d/gns3.list deb http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main deb-src http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main deb http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main deb-src http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main EOFLIST fi else if [ $UNSTABLE == 1 ] then cat < /etc/apt/sources.list.d/gns3.list deb http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main deb-src http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main EOFLIST else cat < /etc/apt/sources.list.d/gns3.list deb http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main deb-src http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main EOFLIST fi fi if [ $I386_REPO == 1 ] then cat <> /etc/apt/sources.list ###### Ubuntu Main Repos deb http://archive.ubuntu.com/ubuntu/ $UBUNTU_CODENAME main universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ $UBUNTU_CODENAME main universe multiverse ###### Ubuntu Update Repos deb http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-security main universe multiverse deb http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-updates main universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-security main universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-updates main universe multiverse EOFLIST2 fi apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A2E3EF7B log "Update system packages" apt-get update log "Upgrade packages" apt-get upgrade --yes --force-yes -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" log " Install GNS3 packages" apt-get install -y gns3-server log "Create user GNS3 with /opt/gns3 as home directory" if [ ! -d "/opt/gns3/" ] then useradd -d /opt/gns3/ -m gns3 fi log "Add GNS3 to the ubridge group" usermod -aG ubridge gns3 log "Install docker" if [ ! -f "/usr/bin/docker" ] then curl -sSL https://get.docker.com | bash fi log "Add GNS3 to the docker group" usermod -aG docker gns3 if [ $USE_IOU == 1 ] then log "IOU setup" dpkg --add-architecture i386 apt-get update apt-get install -y gns3-iou # Force the host name to gns3vm echo gns3vm > /etc/hostname # Force hostid for IOU dd if=/dev/zero bs=4 count=1 of=/etc/hostid # Block iou call. The server is down echo "127.0.0.254 xml.cisco.com" | tee --append /etc/hosts fi log "Add gns3 to the kvm group" usermod -aG kvm gns3 log "Setup GNS3 server" mkdir -p /etc/gns3 cat < /etc/gns3/gns3_server.conf [Server] host = 0.0.0.0 port = 3080 images_path = /opt/gns3/images projects_path = /opt/gns3/projects appliances_path = /opt/gns3/appliances configs_path = /opt/gns3/configs report_errors = True [Qemu] enable_kvm = True require_kvm = True EOFC chown -R gns3:gns3 /etc/gns3 chmod -R 700 /etc/gns3 if [ "$UBUNTU_CODENAME" == "trusty" ] then cat < /etc/init/gns3.conf description "GNS3 server" author "GNS3 Team" start on filesystem or runlevel [2345] stop on runlevel [016] respawn console log script exec start-stop-daemon --start --make-pidfile --pidfile /var/run/gns3.pid --chuid gns3 --exec "/usr/bin/gns3server" end script pre-start script echo "" > /var/log/upstart/gns3.log echo "[`date`] GNS3 Starting" end script pre-stop script echo "[`date`] GNS3 Stopping" end script EOFI chown root:root /etc/init/gns3.conf chmod 644 /etc/init/gns3.conf log "Start GNS3 service" set +e service gns3 stop set -e service gns3 start else # Install systemd service cat < /lib/systemd/system/gns3.service [Unit] Description=GNS3 server [Service] Type=forking User=gns3 Group=gns3 PermissionsStartOnly=true ExecStartPre=/bin/mkdir -p /var/log/gns3 /var/run/gns3 ExecStartPre=/bin/chown -R gns3:gns3 /var/log/gns3 /var/run/gns3 ExecStart=/usr/bin/gns3server --log /var/log/gns3/gns3.log \ --pid /var/run/gns3/gns3.pid --daemon Restart=on-abort PIDFile=/var/run/gns3/gns3.pid [Install] WantedBy=multi-user.target EOFI chmod 755 /lib/systemd/system/gns3.service chown root:root /lib/systemd/system/gns3.service log "Start GNS3 service" systemctl enable gns3 systemctl start gns3 fi log "GNS3 installed with success" if [ $USE_VPN == 1 ] then log "Setup VPN" cat < /etc/gns3/gns3_server.conf [Server] host = 172.16.253.1 port = 3080 images_path = /opt/gns3/images projects_path = /opt/gns3/projects report_errors = True [Qemu] enable_kvm = True require_kvm = True EOFSERVER log "Install packages for Open VPN" apt-get install -y \ openvpn \ uuid \ dnsutils \ nginx-light MY_IP_ADDR=$(dig @ns1.google.com -t txt o-o.myaddr.l.google.com +short -4 | sed 's/"//g') log "IP detected: $MY_IP_ADDR" UUID=$(uuid) log "Update motd" cat < /etc/update-motd.d/70-openvpn #!/bin/sh echo "" echo "_______________________________________________________________________________________________" echo "Download the VPN configuration here:" echo "http://$MY_IP_ADDR:8003/$UUID/$HOSTNAME.ovpn" echo "" echo "And add it to your openvpn client." echo "" echo "apt-get remove nginx-light to disable the HTTP server." echo "And remove this file with rm /etc/update-motd.d/70-openvpn" EOFMOTD chmod 755 /etc/update-motd.d/70-openvpn mkdir -p /etc/openvpn/ [ -d /dev/net ] || mkdir -p /dev/net [ -c /dev/net/tun ] || mknod /dev/net/tun c 10 200 log "Create keys" [ -f /etc/openvpn/dh.pem ] || openssl dhparam -out /etc/openvpn/dh.pem 2048 [ -f /etc/openvpn/key.pem ] || openssl genrsa -out /etc/openvpn/key.pem 2048 chmod 600 /etc/openvpn/key.pem [ -f /etc/openvpn/csr.pem ] || openssl req -new -key /etc/openvpn/key.pem -out /etc/openvpn/csr.pem -subj /CN=OpenVPN/ [ -f /etc/openvpn/cert.pem ] || openssl x509 -req -in /etc/openvpn/csr.pem -out /etc/openvpn/cert.pem -signkey /etc/openvpn/key.pem -days 24855 log "Create client configuration" cat < /root/client.ovpn client nobind comp-lzo dev tun `cat /etc/openvpn/key.pem` `cat /etc/openvpn/cert.pem` `cat /etc/openvpn/cert.pem` `cat /etc/openvpn/dh.pem` remote $MY_IP_ADDR 1194 udp EOFCLIENT cat < /etc/openvpn/udp1194.conf server 172.16.253.0 255.255.255.0 verb 3 duplicate-cn comp-lzo key key.pem ca cert.pem cert cert.pem dh dh.pem keepalive 10 60 persist-key persist-tun proto udp port 1194 dev tun1194 status openvpn-status-1194.log log-append /var/log/openvpn-udp1194.log EOFUDP echo "Setup HTTP server for serving client certificate" mkdir -p /usr/share/nginx/openvpn/$UUID cp /root/client.ovpn /usr/share/nginx/openvpn/$UUID/$HOSTNAME.ovpn touch /usr/share/nginx/openvpn/$UUID/index.html touch /usr/share/nginx/openvpn/index.html cat < /etc/nginx/sites-available/openvpn server { listen 8003; root /usr/share/nginx/openvpn; } EOFNGINX [ -f /etc/nginx/sites-enabled/openvpn ] || ln -s /etc/nginx/sites-available/openvpn /etc/nginx/sites-enabled/ service nginx stop service nginx start log "Restart OpenVPN" set +e service openvpn stop service openvpn start log "Download http://$MY_IP_ADDR:8003/$UUID/$HOSTNAME.ovpn to setup your OpenVPN client after rebooting the server" fi