mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-01 12:48:14 +00:00
e5a76fcf44
When `--with-iou` and `--with-openvpn` are both enabled, hostname were updated in `/etc/hostname` but not on the running system (only changed after reboot). So the old hostname were used in MOTD and client OpenVPN config URL.
420 lines
10 KiB
Bash
420 lines
10 KiB
Bash
#!/bin/bash
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Install GNS3 on a remote Ubuntu LTS server
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# This create a dedicated user and setup all the package
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# and optionnaly a VPN
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#
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function help {
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echo "Usage:" >&2
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echo "--with-openvpn: Install OpenVPN" >&2
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echo "--with-iou: Install IOU" >&2
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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
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echo "--without-kvm: Disable KVM, required if system do not support it (limitation in some hypervisors and cloud providers). Warning: only disable KVM if strictly necessary as this will degrade performance" >&2
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echo "--unstable: Use the GNS3 unstable repository"
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echo "--help: This help" >&2
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}
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function log {
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echo "=> $1" >&2
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}
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lsb_release -d | grep "LTS" > /dev/null
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if [ $? != 0 ]
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then
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echo "This script can only be run on a Linux Ubuntu LTS release"
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exit 1
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fi
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# Read the options
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USE_VPN=0
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USE_IOU=0
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I386_REPO=0
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DISABLE_KVM=0
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UNSTABLE=0
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TEMP=`getopt -o h --long with-openvpn,with-iou,with-i386-repository,without-kvm,unstable,help -n 'gns3-remote-install.sh' -- "$@"`
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if [ $? != 0 ]
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then
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help
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exit 1
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fi
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eval set -- "$TEMP"
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# extract options and their arguments into variables.
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while true ; do
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case "$1" in
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--with-openvpn)
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USE_VPN=1
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shift
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;;
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--with-iou)
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USE_IOU=1
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shift
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;;
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--with-i386-repository)
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I386_REPO=1
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shift
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;;
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--without-kvm)
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DISABLE_KVM=1
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shift
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;;
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--unstable)
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UNSTABLE=1
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shift
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;;
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-h|--help)
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help
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exit 1
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;;
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--) shift ; break ;;
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*) echo "Internal error! $1" ; exit 1 ;;
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esac
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done
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# Exit in case of error
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set -e
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export DEBIAN_FRONTEND="noninteractive"
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UBUNTU_CODENAME=`lsb_release -c -s`
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log "Add GNS3 repository"
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if [ "$UBUNTU_CODENAME" == "trusty" ]
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then
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if [ $UNSTABLE == 1 ]
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then
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cat <<EOFLIST > /etc/apt/sources.list.d/gns3.list
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deb http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main
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deb-src http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main
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deb http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main
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deb-src http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main
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EOFLIST
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else
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cat <<EOFLIST > /etc/apt/sources.list.d/gns3.list
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deb http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main
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deb-src http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main
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deb http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main
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deb-src http://ppa.launchpad.net/gns3/qemu/ubuntu $UBUNTU_CODENAME main
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EOFLIST
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fi
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else
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if [ $UNSTABLE == 1 ]
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then
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cat <<EOFLIST > /etc/apt/sources.list.d/gns3.list
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deb http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main
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deb-src http://ppa.launchpad.net/gns3/unstable/ubuntu $UBUNTU_CODENAME main
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EOFLIST
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else
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cat <<EOFLIST > /etc/apt/sources.list.d/gns3.list
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deb http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main
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deb-src http://ppa.launchpad.net/gns3/ppa/ubuntu $UBUNTU_CODENAME main
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EOFLIST
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fi
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fi
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if [ $I386_REPO == 1 ]
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then
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cat <<EOFLIST2 >> /etc/apt/sources.list
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###### Ubuntu Main Repos
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deb http://archive.ubuntu.com/ubuntu/ $UBUNTU_CODENAME main universe multiverse
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deb-src http://archive.ubuntu.com/ubuntu/ $UBUNTU_CODENAME main universe multiverse
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###### Ubuntu Update Repos
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deb http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-security main universe multiverse
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deb http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-updates main universe multiverse
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deb-src http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-security main universe multiverse
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deb-src http://archive.ubuntu.com/ubuntu/ ${UBUNTU_CODENAME}-updates main universe multiverse
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EOFLIST2
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fi
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apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys A2E3EF7B
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log "Update system packages"
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apt-get update
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log "Upgrade packages"
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apt-get upgrade --yes --force-yes -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold"
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log "Install GNS3 packages"
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apt-get install -y gns3-server
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log "Create user GNS3 with /opt/gns3 as home directory"
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if [ ! -d "/opt/gns3/" ]
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then
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useradd -d /opt/gns3/ -m gns3
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fi
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log "Add GNS3 to the ubridge group"
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usermod -aG ubridge gns3
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log "Install docker"
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if [ ! -f "/usr/bin/docker" ]
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then
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curl -sSL https://get.docker.com | bash
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fi
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log "Add GNS3 to the docker group"
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usermod -aG docker gns3
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if [ $USE_IOU == 1 ]
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then
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log "Setup IOU"
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dpkg --add-architecture i386
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apt-get update
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apt-get install -y gns3-iou
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# Force the host name to gns3vm
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echo gns3vm > /etc/hostname
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hostname gns3vm
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HOSTNAME=$(hostname)
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# Force hostid for IOU
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dd if=/dev/zero bs=4 count=1 of=/etc/hostid
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# Block iou call. The server is down
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echo "127.0.0.254 xml.cisco.com" | tee --append /etc/hosts
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fi
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log "Add gns3 to the kvm group"
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usermod -aG kvm gns3
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log "Setup GNS3 server"
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mkdir -p /etc/gns3
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cat <<EOFC > /etc/gns3/gns3_server.conf
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[Server]
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host = 0.0.0.0
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port = 3080
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images_path = /opt/gns3/images
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projects_path = /opt/gns3/projects
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appliances_path = /opt/gns3/appliances
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configs_path = /opt/gns3/configs
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report_errors = True
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[Qemu]
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enable_hardware_acceleration = True
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require_hardware_acceleration = True
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EOFC
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if [ $DISABLE_KVM == 1 ]
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then
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log "Disable KVM support"
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sed -i 's/hardware_acceleration = True/hardware_acceleration = False/g' /etc/gns3/gns3_server.conf
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fi
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chown -R gns3:gns3 /etc/gns3
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chmod -R 700 /etc/gns3
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if [ "$UBUNTU_CODENAME" == "trusty" ]
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then
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cat <<EOFI > /etc/init/gns3.conf
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description "GNS3 server"
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author "GNS3 Team"
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start on filesystem or runlevel [2345]
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stop on runlevel [016]
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respawn
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console log
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script
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exec start-stop-daemon --start --make-pidfile --pidfile /var/run/gns3.pid --chuid gns3 --exec "/usr/bin/gns3server"
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end script
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pre-start script
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echo "" > /var/log/upstart/gns3.log
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echo "[`date`] GNS3 Starting"
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end script
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pre-stop script
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echo "[`date`] GNS3 Stopping"
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end script
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EOFI
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chown root:root /etc/init/gns3.conf
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chmod 644 /etc/init/gns3.conf
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log "Start GNS3 service"
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set +e
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service gns3 stop
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set -e
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service gns3 start
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else
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# Install systemd service
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cat <<EOFI > /lib/systemd/system/gns3.service
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[Unit]
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Description=GNS3 server
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After=network-online.target
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Wants=network-online.target
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Conflicts=shutdown.target
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[Service]
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User=gns3
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Group=gns3
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PermissionsStartOnly=true
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EnvironmentFile=/etc/environment
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ExecStartPre=/bin/mkdir -p /var/log/gns3 /var/run/gns3
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ExecStartPre=/bin/chown -R gns3:gns3 /var/log/gns3 /var/run/gns3
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ExecStart=/usr/bin/gns3server --log /var/log/gns3/gns3.log
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ExecReload=/bin/kill -s HUP $MAINPID
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Restart=on-failure
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RestartSec=5
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LimitNOFILE=16384
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[Install]
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WantedBy=multi-user.target
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EOFI
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chmod 755 /lib/systemd/system/gns3.service
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chown root:root /lib/systemd/system/gns3.service
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log "Start GNS3 service"
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systemctl enable gns3
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systemctl start gns3
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fi
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log "GNS3 installed with success"
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if [ $USE_VPN == 1 ]
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then
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log "Setup VPN"
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log "Change GNS3 to listen on VPN interface"
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sed -i 's/host = 0.0.0.0/host = 172.16.253.1/' /etc/gns3/gns3_server.conf
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log "Install packages for OpenVPN"
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apt-get install -y \
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openvpn \
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uuid \
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dnsutils \
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nginx-light
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MY_IP_ADDR=$(dig @ns1.google.com -t txt o-o.myaddr.l.google.com +short -4 | sed 's/"//g')
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log "IP detected: $MY_IP_ADDR"
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UUID=$(uuid)
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log "Update motd"
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cat <<EOFMOTD > /etc/update-motd.d/70-openvpn
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#!/bin/sh
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echo ""
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echo "_______________________________________________________________________________________________"
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echo "Download the VPN configuration here:"
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echo "http://$MY_IP_ADDR:8003/$UUID/$HOSTNAME.ovpn"
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echo ""
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echo "And add it to your openvpn client."
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echo ""
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echo "apt-get remove nginx-light to disable the HTTP server."
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echo "And remove this file with rm /etc/update-motd.d/70-openvpn"
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EOFMOTD
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chmod 755 /etc/update-motd.d/70-openvpn
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mkdir -p /etc/openvpn/
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[ -d /dev/net ] || mkdir -p /dev/net
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[ -c /dev/net/tun ] || mknod /dev/net/tun c 10 200
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log "Create keys"
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[ -f /etc/openvpn/dh.pem ] || openssl dhparam -out /etc/openvpn/dh.pem 2048
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[ -f /etc/openvpn/key.pem ] || openssl genrsa -out /etc/openvpn/key.pem 2048
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chmod 600 /etc/openvpn/key.pem
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[ -f /etc/openvpn/csr.pem ] || openssl req -new -key /etc/openvpn/key.pem -out /etc/openvpn/csr.pem -subj /CN=OpenVPN/
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[ -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
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log "Create client configuration"
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cat <<EOFCLIENT > /root/client.ovpn
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client
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nobind
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comp-lzo
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dev tun
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<key>
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`cat /etc/openvpn/key.pem`
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</key>
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<cert>
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`cat /etc/openvpn/cert.pem`
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</cert>
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<ca>
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`cat /etc/openvpn/cert.pem`
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</ca>
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<dh>
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`cat /etc/openvpn/dh.pem`
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</dh>
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<connection>
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remote $MY_IP_ADDR 1194 udp
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</connection>
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EOFCLIENT
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cat <<EOFUDP > /etc/openvpn/udp1194.conf
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server 172.16.253.0 255.255.255.0
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verb 3
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duplicate-cn
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comp-lzo
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key key.pem
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ca cert.pem
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cert cert.pem
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dh dh.pem
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keepalive 10 60
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persist-key
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persist-tun
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proto udp
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port 1194
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dev tun1194
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status openvpn-status-1194.log
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log-append /var/log/openvpn-udp1194.log
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EOFUDP
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log "Setup HTTP server for serving client certificate"
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mkdir -p /usr/share/nginx/openvpn/$UUID
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cp /root/client.ovpn /usr/share/nginx/openvpn/$UUID/$HOSTNAME.ovpn
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touch /usr/share/nginx/openvpn/$UUID/index.html
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touch /usr/share/nginx/openvpn/index.html
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cat <<EOFNGINX > /etc/nginx/sites-available/openvpn
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server {
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listen 8003;
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root /usr/share/nginx/openvpn;
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}
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EOFNGINX
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[ -f /etc/nginx/sites-enabled/openvpn ] || ln -s /etc/nginx/sites-available/openvpn /etc/nginx/sites-enabled/
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service nginx stop
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service nginx start
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log "Restart OpenVPN and GNS3"
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set +e
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service openvpn stop
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service openvpn start
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service gns3 stop
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service gns3 start
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log "Download http://$MY_IP_ADDR:8003/$UUID/$HOSTNAME.ovpn to setup your OpenVPN client after rebooting the server"
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fi
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