scripts/install-openvim.sh - osm/openvim - Gitiles

 #!/bin/bash

 ##
 # Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
 # This file is part of openvim
 # All Rights Reserved.
 #
 # 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.
 #
 # For those usages not covered by the Apache License, Version 2.0 please
 # contact with: nfvlabs@tid.es
 ##

 #ONLY TESTED for Ubuntu 14.10 14.04 16.04, CentOS7 and RHEL7
 #Get needed packages, source code and configure to run openvim
 #Ask for database user and password if not provided


 function usage(){
     echo -e "usage: sudo $0 [OPTIONS]"
     echo -e "Install last stable source code in ./openvim and the needed packages"
     echo -e "On a Ubuntu 16.04 it configures openvim as a service"
     echo -e "  OPTIONS"
     echo -e "     -u USER:    database admin user. 'root' by default. Prompts if needed"
     echo -e "     -p PASS:    database admin password to be used or installed. Prompts if needed"
     echo -e "     -q --quiet: install in an unattended mode"
     echo -e "     -h --help:  show this help"
     echo -e "     --develop:  install last version for developers, and do not configure as a service"
     echo -e "     --forcedb:  reinstall vim_db DB, deleting previous database if exists and creating a new one"
     echo -e "     --force:    makes idenpotent, delete previous installations folders if needed"
     echo -e "     --noclone:  assumes that openvim was cloned previously and that this script is run from the local repo"
     echo -e "     --no-install-packages: use this option to skip updating and installing the requires packages. This avoid wasting time if you are sure requires packages are present e.g. because of a previous installation"
 }

 function install_packages(){
     [ -x /usr/bin/apt-get ] && apt-get install -y $*
     [ -x /usr/bin/yum ]     && yum install -y $*

     #check properly installed
     for PACKAGE in $*
     do
         PACKAGE_INSTALLED="no"
         [ -x /usr/bin/apt-get ] && dpkg -l $PACKAGE            &>> /dev/null && PACKAGE_INSTALLED="yes"
         [ -x /usr/bin/yum ]     && yum list installed $PACKAGE &>> /dev/null && PACKAGE_INSTALLED="yes"
         if [ "$PACKAGE_INSTALLED" = "no" ]
         then
             echo "failed to install package '$PACKAGE'. Revise network connectivity and try again"
             exit -1
        fi
     done
 }

 function db_exists() {
     RESULT=`mysqlshow --defaults-extra-file="$2" | grep -v Wildcard | grep -o $1`
     if [ "$RESULT" == "$1" ]; then
         echo " DB $1 exists"
         return 0
     fi
     echo " DB $1 does not exist"
     return 1
 }


 GIT_URL=https://osm.etsi.org/gerrit/osm/openvim.git
 DBUSER="root"
 DBPASSWD=""
 DBPASSWD_PARAM=""
 QUIET_MODE=""
 DEVELOP=""
 FORCEDB=""
 FORCE=""
 NOCLONE=""
 NO_PACKAGES=""
 while getopts ":u:p:hiq-:" o; do
     case "${o}" in
         u)
             export DBUSER="$OPTARG"
             ;;
         p)
             export DBPASSWD="$OPTARG"
             export DBPASSWD_PARAM="-p$OPTARG"
             ;;
         q)
             export QUIET_MODE=yes
             export DEBIAN_FRONTEND=noninteractive
             ;;
         h)
             usage && exit 0
             ;;
         -)
             [ "${OPTARG}" == "help" ] && usage && exit 0
             [ "${OPTARG}" == "develop" ] && DEVELOP="y" && continue
             [ "${OPTARG}" == "forcedb" ] && FORCEDB="y" && continue
             [ "${OPTARG}" == "force" ]   && FORCEDB="y" && FORCE="y" && continue
             [ "${OPTARG}" == "noclone" ] && NOCLONE="y" && continue
             [ "${OPTARG}" == "quiet" ] && export QUIET_MODE=yes && export DEBIAN_FRONTEND=noninteractive && continue
             [ "${OPTARG}" == "no-install-packages" ] && export NO_PACKAGES=yes && continue
             echo -e "Invalid option: '--$OPTARG'\nTry $0 --help for more information" >&2
             exit 1
             ;;
         \?)
             echo -e "Invalid option: '-$OPTARG'\nTry $0 --help for more information" >&2
             exit 1
             ;;
         :)
             echo -e "Option '-$OPTARG' requires an argument\nTry $0 --help for more information" >&2
             exit 1
             ;;
         *)
             usage >&2
             exit -1
             ;;
     esac
 done

 #check root privileges and non a root user behind
 [ "$USER" != "root" ] && echo "Needed root privileges" >&2 && exit -1
 if [[ -z "$SUDO_USER" ]] || [[ "$SUDO_USER" = "root" ]]
 then
     [[ -z $QUIET_MODE ]] && read -e -p "Install in the root user (y/N)?" KK
     [[ -z $QUIET_MODE ]] && [[ "$KK" != "y" ]] && [[ "$KK" != "yes" ]] && echo "Cancelled" && exit 1
     export SUDO_USER=root
 fi

 #Discover Linux distribution
 #try redhat type
 [ -f /etc/redhat-release ] && _DISTRO=$(cat /etc/redhat-release 2>/dev/null | cut  -d" " -f1)
 #if not assuming ubuntu type
 [ -f /etc/redhat-release ] || _DISTRO=$(lsb_release -is  2>/dev/null)
 if [ "$_DISTRO" == "Ubuntu" ]
 then
     _RELEASE=$(lsb_release -rs)
     if [[ ${_RELEASE%%.*} != 14 ]] && [[ ${_RELEASE%%.*} != 16 ]]
     then
         [[ -z $QUIET_MODE ]] && read -e -p "WARNING! Not tested Ubuntu version. Continue assuming a trusty (14.XX)'? (y/N)" KK
         [[ -z $QUIET_MODE ]] && [[ "$KK" != "y" ]] && [[ "$KK" != "yes" ]] && echo "Cancelled" && exit 1
         _RELEASE = 14
     fi
 elif [ "$_DISTRO" == "CentOS" ]
 then
     _RELEASE="7"
     if ! cat /etc/redhat-release | grep -q "7."
     then
         read -e -p "WARNING! Not tested CentOS version. Continue assuming a '_RELEASE' type? (y/N)" KK
         [ "$KK" != "y" -a  "$KK" != "yes" ] && echo "Cancelled" && exit 0
     fi
 elif [ "$_DISTRO" == "Red" ]
 then
     _RELEASE="7"
     if ! cat /etc/redhat-release | grep -q "7."
     then
         read -e -p "WARNING! Not tested Red Hat OS version. Continue assuming a '_RELEASE' type? (y/N)" KK
         [ "$KK" != "y" -a  "$KK" != "yes" ] && echo "Cancelled" && exit 0
     fi
 else  #[ "$_DISTRO" != "Ubuntu" -a "$_DISTRO" != "CentOS" -a "$_DISTRO" != "Red" ]
     _DISTRO_DISCOVER=$_DISTRO
     [ -x /usr/bin/apt-get ] && _DISTRO="Ubuntu" && _RELEASE="14"
     [ -x /usr/bin/yum ]     && _DISTRO="CentOS" && _RELEASE="7"
     read -e -p "WARNING! Not tested Linux distribution '$_DISTRO_DISCOVER '. Continue assuming a '$_DISTRO $_RELEASE' type? (y/N)" KK
     [ "$KK" != "y" -a  "$KK" != "yes" ] && echo "Cancelled" && exit 0
 fi

 #check if installed as a service
 INSTALL_AS_A_SERVICE=""
 [[ "$_DISTRO" == "Ubuntu" ]] &&  [[ ${_RELEASE%%.*} == 16 ]] && [[ -z $DEVELOP ]] && INSTALL_AS_A_SERVICE="y"

 #Next operations require knowing BASEFOLDER
 if [[ -z "$NOCLONE" ]]; then
     if [[ -n "$INSTALL_AS_A_SERVICE" ]] ; then
         OPENVIM_BASEFOLDER=__openvim__${RANDOM}
     else
         OPENVIM_BASEFOLDER="${PWD}/openvim"
     fi
     [[ -n "$FORCE" ]] && rm -rf $OPENVIM_BASEFOLDER #make idempotent
 else
     HERE=$(realpath $(dirname $0))
     OPENVIM_BASEFOLDER=$(dirname $HERE)
 fi


 if [[ -z "$NO_PACKAGES" ]]
 then
 echo '
 #################################################################
 #####               UPDATE REPOSITORIES                     #####
 #################################################################'
 [ "$_DISTRO" == "Ubuntu" ] && apt-get update -y

 [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && yum check-update -y
 [ "$_DISTRO" == "CentOS" ] && sudo yum install -y epel-release
 [ "$_DISTRO" == "Red" ] && wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm \
   && sudo rpm -ivh epel-release-7-5.noarch.rpm && sudo yum install -y epel-release && rm -f epel-release-7-5.noarch.rpm
 [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && sudo yum repolist
 fi

 if [[ -z "$NO_PACKAGES" ]]
 then
 echo '
 #################################################################
 #####               INSTALL REQUIRED PACKAGES               #####
 #################################################################'
 [ "$_DISTRO" == "Ubuntu" ] && install_packages "git screen wget mysql-server"
 [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && install_packages "git screen wget mariadb mariadb-server"

 if [[ "$_DISTRO" == "Ubuntu" ]]
 then
     #start services. By default CentOS does not start services
     service mysql start >> /dev/null
     # try to set admin password, ignore if fails
     [[ -n $DBPASSWD ]] && mysqladmin -u $DBUSER -s password $DBPASSWD
 fi

 if [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ]
 then
     #start services. By default CentOS does not start services
     service mariadb start
     service httpd   start
     systemctl enable mariadb
     systemctl enable httpd
     read -e -p "Do you want to configure mariadb (recomended if not done before) (Y/n)" KK
     [ "$KK" != "n" -a  "$KK" != "no" ] && mysql_secure_installation

     read -e -p "Do you want to set firewall to grant web access port 80,443  (Y/n)" KK
     [ "$KK" != "n" -a  "$KK" != "no" ] &&
         firewall-cmd --permanent --zone=public --add-service=http &&
         firewall-cmd --permanent --zone=public --add-service=https &&
         firewall-cmd --reload
 fi
 fi  #[[ -z "$NO_PACKAGES" ]]

 #check and ask for database user password. Must be done after database installation
 if [[ -n $QUIET_MODE ]]
 then
     echo -e "\nCheking database connection and ask for credentials"
     while ! mysqladmin -s -u$DBUSER $DBPASSWD_PARAM status >/dev/null
     do
         [ -n "$logintry" ] &&  echo -e "\nInvalid database credentials!!!. Try again (Ctrl+c to abort)"
         [ -z "$logintry" ] &&  echo -e "\nProvide database credentials"
         read -e -p "database user? ($DBUSER) " DBUSER_
         [ -n "$DBUSER_" ] && DBUSER=$DBUSER_
         read -e -s -p "database password? (Enter for not using password) " DBPASSWD_
         [ -n "$DBPASSWD_" ] && DBPASSWD="$DBPASSWD_" && DBPASSWD_PARAM="-p$DBPASSWD_"
         [ -z "$DBPASSWD_" ] && DBPASSWD=""           && DBPASSWD_PARAM=""
         logintry="yes"
     done
 fi

 if [[ -z "$NO_PACKAGES" ]]
 then
 echo '
 #################################################################
 #####               INSTALL PYTHON PACKAGES                 #####
 #################################################################'
 [ "$_DISTRO" == "Ubuntu" ] && install_packages "python-yaml python-libvirt python-bottle python-mysqldb python-jsonschema python-paramiko python-argcomplete python-requests"
 [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && install_packages "PyYAML libvirt-python MySQL-python python-jsonschema python-paramiko python-argcomplete python-requests"

 #The only way to install python-bottle on Centos7 is with easy_install or pip
 [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && easy_install -U bottle

 fi  #[[ -z "$NO_PACKAGES" ]]

 if [[ -z $NOCLONE ]]; then
     echo '
 #################################################################
 #####                 DOWNLOAD SOURCE                       #####
 #################################################################'
     if [[ -d "${OPENVIM_BASEFOLDER}" ]]
     then
         if [[ -n "$FORCE" ]]
         then
             echo "deleting '${OPENVIM_BASEFOLDER}' folder"
             rm -rf "$OPENVIM_BASEFOLDER" #make idempotent
         elif [[ -z "$QUIET_MODE" ]]
         then
             read -e -p "${OPENVIM_BASEFOLDER} folder exist, overwrite? (y/N)" KK
             if [[ "$KK" == "y" ]] || [[ "$KK" == "yes" ]]
                 then rm -rf "$OPENVIM_BASEFOLDER"
             else
                 echo "canceled"
                 exit 1
             fi
         else
             echo "'${OPENVIM_BASEFOLDER}' folder exist" >&2 && exit 1
         fi
     fi


     su $SUDO_USER -c "git clone ${GIT_URL} ${OPENVIM_BASEFOLDER}"
     su $SUDO_USER -c "cp ${OPENVIM_BASEFOLDER}/.gitignore-common ${OPENVIM_BASEFOLDER}/.gitignore"
     [[ -z $DEVELOP ]] && su $SUDO_USER -c "git -C  ${OPENVIM_BASEFOLDER} checkout tags/v1.0.2"
 fi

 echo '
 #################################################################
 #####               CREATE DATABASE                         #####
 #################################################################'
 echo -e "\nCreating temporary file form MYSQL installation and initialization"
 TEMPFILE="$(mktemp -q --tmpdir "installopenvim.XXXXXX")"
 trap 'rm -f "$TEMPFILE"' EXIT
 chmod 0600 "$TEMPFILE"
 echo -e "[client]\n user='$DBUSER'\n password='$DBPASSWD'">"$TEMPFILE"

 if db_exists "vim_db" $TEMPFILE ; then
     if [[ -n $FORCEDB ]]; then
         echo "   Deleting previous database vim_db"
         DBDELETEPARAM=""
         [[ -n $QUIET_MODE ]] && DBDELETEPARAM="-f"
         mysqladmin --defaults-extra-file=$TEMPFILE -s drop vim_db $DBDELETEPARAM || ! echo "Could not delete vim_db database" || exit 1
         #echo "REVOKE ALL PRIVILEGES ON vim_db.* FROM 'vim'@'localhost';" | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
         #echo "DELETE USER 'vim'@'localhost';"   | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
         mysqladmin --defaults-extra-file=$TEMPFILE -s create vim_db || ! echo "Error creating vim_db database" || exit 1
         echo "DROP USER 'vim'@'localhost';"   | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
         echo "CREATE USER 'vim'@'localhost' identified by 'vimpw';"   | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
         echo "GRANT ALL PRIVILEGES ON vim_db.* TO 'vim'@'localhost';" | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
         echo " Database 'vim_db' created, user 'vim' password 'vimpw'"
     else
         echo "Database exists. Use option '--forcedb' to force the deletion of the existing one" && exit 1
     fi
 else
     mysqladmin -u$DBUSER $DBPASSWD_PARAM -s create vim_db || ! echo "Error creating vim_db database" || exit 1
     echo "CREATE USER 'vim'@'localhost' identified by 'vimpw';"   | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
     echo "GRANT ALL PRIVILEGES ON vim_db.* TO 'vim'@'localhost';" | mysql --defaults-extra-file=$TEMPFILE -s || ! echo "Failed while creating user vim at database" || exit 1
     echo " Database 'vim_db' created, user 'vim' password 'vimpw'"
 fi

 echo '
 #################################################################
 #####        INIT DATABASE                                  #####
 #################################################################'
 su $SUDO_USER -c "${OPENVIM_BASEFOLDER}/database_utils/init_vim_db.sh -u vim -p vimpw -d vim_db" || ! echo "Failed while initializing database" || exit 1


 if [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ]
 then
     echo '
 #################################################################
 #####        CONFIGURE firewalld                            #####
 #################################################################'
     read -e -p "Configure firewalld for openvimd port 9080? (Y/n)" KK
     if [ "$KK" != "n" -a  "$KK" != "no" ]
     then
         #Creates a service file for openvim
         echo '<?xml version="1.0" encoding="utf-8"?>
 <service>
  <short>openvimd</short>
  <description>openvimd service</description>
  <port protocol="tcp" port="9080"/>
 </service>' > /etc/firewalld/services/openvimd.xml
         #put proper permissions
         pushd /etc/firewalld/services > /dev/null
         restorecon openvim
         chmod 640 openvim
         popd > /dev/null
         #Add the openvim service to the default zone permanently and reload the firewall configuration
         firewall-cmd --permanent --add-service=openvim > /dev/null
         firewall-cmd --reload > /dev/null
         echo "done."
     else
         echo "skipping."
     fi
 fi

 echo '
 #################################################################
 #####        CONFIGURE openvim CLIENT                       #####
 #################################################################'
 #creates a link at ~/bin if not configured as a service
 if [[ -z "$INSTALL_AS_A_SERVICE" ]]
 then
     su $SUDO_USER -c 'mkdir -p ~/bin'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/openvim'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/openflow'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/service-openvim'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/initopenvim'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/service-floodlight'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/service-opendaylight'
     su $SUDO_USER -c 'rm -f ${HOME}/bin/get_dhcp_lease.sh'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/openvim'   "'${HOME}/bin/openvim'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/openflow'  "'${HOME}/bin/openflow'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/service-openvim.sh'  "'${HOME}/bin/service-openvim'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/initopenvim.sh'  "'${HOME}/bin/initopenvim'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/service-floodlight.sh'  "'${HOME}/bin/service-floodlight'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/service-opendaylight.sh'  "'${HOME}/bin/service-opendaylight'
     su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/get_dhcp_lease.sh'  "'${HOME}/bin/get_dhcp_lease.sh'

     #insert /home/<user>/bin in the PATH
     #skiped because normally this is done authomatically when ~/bin exist
     #if ! su $SUDO_USER -c 'echo $PATH' | grep -q "/home/${SUDO_USER}/bin"
     #then
     #    echo "    inserting /home/$SUDO_USER/bin in the PATH at .bashrc"
     #    su $SUDO_USER -c 'echo "PATH=\$PATH:/home/\${USER}/bin" >> ~/.bashrc'
     #fi

     if [[ $SUDO_USER == root ]]
     then
         if ! echo $PATH | grep -q "${HOME}/bin"
         then
             echo "PATH=\$PATH:\${HOME}/bin" >> ${HOME}/.bashrc
         fi
     fi
 fi

 #configure arg-autocomplete for this user
 #in case of minmal instalation this package is not installed by default
 [[ "$_DISTRO" == "CentOS" || "$_DISTRO" == "Red" ]] && yum install -y bash-completion
 #su $SUDO_USER -c 'mkdir -p ~/.bash_completion.d'
 su $SUDO_USER -c 'activate-global-python-argcomplete --user'
 if ! grep -q bash_completion.d/python-argcomplete.sh ${HOME}/.bashrc
 then
     echo "    inserting .bash_completion.d/python-argcomplete.sh execution at .bashrc"
     su $SUDO_USER -c 'echo ". ${HOME}/.bash_completion.d/python-argcomplete.sh" >> ~/.bashrc'
 fi


 if [[ -n "$INSTALL_AS_A_SERVICE"  ]]
 then
 echo '
 #################################################################
 #####             CONFIGURE OPENVIM SERVICE                 #####
 #################################################################'

     DELETE_PARAM="" && [[ -z "$NOCLONE" ]] && DELETE_PARAM="-d"
     ${OPENVIM_BASEFOLDER}/scripts/install-openvim-service.sh -f ${OPENVIM_BASEFOLDER} ${DELETE_PARAM}
 #    alias service-openvim="service openvim"
 #    echo 'alias service-openvim="service openvim"' >> ${HOME}/.bashrc

     echo
     echo
     echo "Done!  installed at /opt/openvim"
     echo " Manage server with 'service openvim start|stop|status|...' "


 else

     echo
     echo "Done!  you may need to logout and login again for loading client configuration"
     echo " Run 'service-openvim start' for starting openvim in a screen"

 fi
	#!/bin/bash

	##
	# Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
	# This file is part of openvim
	# All Rights Reserved.
	#
	# 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.
	#
	# For those usages not covered by the Apache License, Version 2.0 please
	# contact with: nfvlabs@tid.es
	##

	#ONLY TESTED for Ubuntu 14.10 14.04 16.04, CentOS7 and RHEL7
	#Get needed packages, source code and configure to run openvim
	#Ask for database user and password if not provided



	function usage(){
	echo -e "usage: sudo $0 [OPTIONS]"
	echo -e "Install last stable source code in ./openvim and the needed packages"
	echo -e "On a Ubuntu 16.04 it configures openvim as a service"
	echo -e " OPTIONS"
	echo -e " -u USER: database admin user. 'root' by default. Prompts if needed"
	echo -e " -p PASS: database admin password to be used or installed. Prompts if needed"
	echo -e " -q --quiet: install in an unattended mode"
	echo -e " -h --help: show this help"
	echo -e " --develop: install last version for developers, and do not configure as a service"
	echo -e " --forcedb: reinstall vim_db DB, deleting previous database if exists and creating a new one"
	echo -e " --force: makes idenpotent, delete previous installations folders if needed"
	echo -e " --noclone: assumes that openvim was cloned previously and that this script is run from the local repo"
	echo -e " --no-install-packages: use this option to skip updating and installing the requires packages. This avoid wasting time if you are sure requires packages are present e.g. because of a previous installation"
	}

	function install_packages(){
	[ -x /usr/bin/apt-get ] && apt-get install -y $*
	[ -x /usr/bin/yum ] && yum install -y $*

	#check properly installed
	for PACKAGE in $*
	do
	PACKAGE_INSTALLED="no"
	[ -x /usr/bin/apt-get ] && dpkg -l $PACKAGE &>> /dev/null && PACKAGE_INSTALLED="yes"
	[ -x /usr/bin/yum ] && yum list installed $PACKAGE &>> /dev/null && PACKAGE_INSTALLED="yes"
	if [ "$PACKAGE_INSTALLED" = "no" ]
	then
	echo "failed to install package '$PACKAGE'. Revise network connectivity and try again"
	exit -1
	fi
	done
	}

	function db_exists() {
	RESULT=`mysqlshow --defaults-extra-file="$2" \| grep -v Wildcard \| grep -o $1`
	if [ "$RESULT" == "$1" ]; then
	echo " DB $1 exists"
	return 0
	fi
	echo " DB $1 does not exist"
	return 1
	}


	GIT_URL=https://osm.etsi.org/gerrit/osm/openvim.git
	DBUSER="root"
	DBPASSWD=""
	DBPASSWD_PARAM=""
	QUIET_MODE=""
	DEVELOP=""
	FORCEDB=""
	FORCE=""
	NOCLONE=""
	NO_PACKAGES=""
	while getopts ":u:p:hiq-:" o; do
	case "${o}" in
	u)
	export DBUSER="$OPTARG"
	;;
	p)
	export DBPASSWD="$OPTARG"
	export DBPASSWD_PARAM="-p$OPTARG"
	;;
	q)
	export QUIET_MODE=yes
	export DEBIAN_FRONTEND=noninteractive
	;;
	h)
	usage && exit 0
	;;
	-)
	[ "${OPTARG}" == "help" ] && usage && exit 0
	[ "${OPTARG}" == "develop" ] && DEVELOP="y" && continue
	[ "${OPTARG}" == "forcedb" ] && FORCEDB="y" && continue
	[ "${OPTARG}" == "force" ] && FORCEDB="y" && FORCE="y" && continue
	[ "${OPTARG}" == "noclone" ] && NOCLONE="y" && continue
	[ "${OPTARG}" == "quiet" ] && export QUIET_MODE=yes && export DEBIAN_FRONTEND=noninteractive && continue
	[ "${OPTARG}" == "no-install-packages" ] && export NO_PACKAGES=yes && continue
	echo -e "Invalid option: '--$OPTARG'\nTry $0 --help for more information" >&2
	exit 1
	;;
	\?)
	echo -e "Invalid option: '-$OPTARG'\nTry $0 --help for more information" >&2
	exit 1
	;;
	:)
	echo -e "Option '-$OPTARG' requires an argument\nTry $0 --help for more information" >&2
	exit 1
	;;
	*)
	usage >&2
	exit -1
	;;
	esac
	done

	#check root privileges and non a root user behind
	[ "$USER" != "root" ] && echo "Needed root privileges" >&2 && exit -1
	if [[ -z "$SUDO_USER" ]] \|\| [[ "$SUDO_USER" = "root" ]]
	then
	[[ -z $QUIET_MODE ]] && read -e -p "Install in the root user (y/N)?" KK
	[[ -z $QUIET_MODE ]] && [[ "$KK" != "y" ]] && [[ "$KK" != "yes" ]] && echo "Cancelled" && exit 1
	export SUDO_USER=root
	fi

	#Discover Linux distribution
	#try redhat type
	[ -f /etc/redhat-release ] && _DISTRO=$(cat /etc/redhat-release 2>/dev/null \| cut -d" " -f1)
	#if not assuming ubuntu type
	[ -f /etc/redhat-release ] \|\| _DISTRO=$(lsb_release -is 2>/dev/null)
	if [ "$_DISTRO" == "Ubuntu" ]
	then
	_RELEASE=$(lsb_release -rs)
	if [[ ${_RELEASE%%.} != 14 ]] && [[ ${_RELEASE%%.} != 16 ]]
	then
	[[ -z $QUIET_MODE ]] && read -e -p "WARNING! Not tested Ubuntu version. Continue assuming a trusty (14.XX)'? (y/N)" KK
	[[ -z $QUIET_MODE ]] && [[ "$KK" != "y" ]] && [[ "$KK" != "yes" ]] && echo "Cancelled" && exit 1
	_RELEASE = 14
	fi
	elif [ "$_DISTRO" == "CentOS" ]
	then
	_RELEASE="7"
	if ! cat /etc/redhat-release \| grep -q "7."
	then
	read -e -p "WARNING! Not tested CentOS version. Continue assuming a '_RELEASE' type? (y/N)" KK
	[ "$KK" != "y" -a "$KK" != "yes" ] && echo "Cancelled" && exit 0
	fi
	elif [ "$_DISTRO" == "Red" ]
	then
	_RELEASE="7"
	if ! cat /etc/redhat-release \| grep -q "7."
	then
	read -e -p "WARNING! Not tested Red Hat OS version. Continue assuming a '_RELEASE' type? (y/N)" KK
	[ "$KK" != "y" -a "$KK" != "yes" ] && echo "Cancelled" && exit 0
	fi
	else #[ "$_DISTRO" != "Ubuntu" -a "$_DISTRO" != "CentOS" -a "$_DISTRO" != "Red" ]
	_DISTRO_DISCOVER=$_DISTRO
	[ -x /usr/bin/apt-get ] && _DISTRO="Ubuntu" && _RELEASE="14"
	[ -x /usr/bin/yum ] && _DISTRO="CentOS" && _RELEASE="7"
	read -e -p "WARNING! Not tested Linux distribution '$_DISTRO_DISCOVER '. Continue assuming a '$_DISTRO $_RELEASE' type? (y/N)" KK
	[ "$KK" != "y" -a "$KK" != "yes" ] && echo "Cancelled" && exit 0
	fi

	#check if installed as a service
	INSTALL_AS_A_SERVICE=""
	[[ "$_DISTRO" == "Ubuntu" ]] && [[ ${_RELEASE%%.*} == 16 ]] && [[ -z $DEVELOP ]] && INSTALL_AS_A_SERVICE="y"

	#Next operations require knowing BASEFOLDER
	if [[ -z "$NOCLONE" ]]; then
	if [[ -n "$INSTALL_AS_A_SERVICE" ]] ; then
	OPENVIM_BASEFOLDER=__openvim__${RANDOM}
	else
	OPENVIM_BASEFOLDER="${PWD}/openvim"
	fi
	[[ -n "$FORCE" ]] && rm -rf $OPENVIM_BASEFOLDER #make idempotent
	else
	HERE=$(realpath $(dirname $0))
	OPENVIM_BASEFOLDER=$(dirname $HERE)
	fi


	if [[ -z "$NO_PACKAGES" ]]
	then
	echo '
	#################################################################
	##### UPDATE REPOSITORIES #####
	#################################################################'
	[ "$_DISTRO" == "Ubuntu" ] && apt-get update -y

	[ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && yum check-update -y
	[ "$_DISTRO" == "CentOS" ] && sudo yum install -y epel-release
	[ "$_DISTRO" == "Red" ] && wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm \
	&& sudo rpm -ivh epel-release-7-5.noarch.rpm && sudo yum install -y epel-release && rm -f epel-release-7-5.noarch.rpm
	[ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && sudo yum repolist
	fi

	if [[ -z "$NO_PACKAGES" ]]
	then
	echo '
	#################################################################
	##### INSTALL REQUIRED PACKAGES #####
	#################################################################'
	[ "$_DISTRO" == "Ubuntu" ] && install_packages "git screen wget mysql-server"
	[ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && install_packages "git screen wget mariadb mariadb-server"

	if [[ "$_DISTRO" == "Ubuntu" ]]
	then
	#start services. By default CentOS does not start services
	service mysql start >> /dev/null
	# try to set admin password, ignore if fails
	[[ -n $DBPASSWD ]] && mysqladmin -u $DBUSER -s password $DBPASSWD
	fi

	if [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ]
	then
	#start services. By default CentOS does not start services
	service mariadb start
	service httpd start
	systemctl enable mariadb
	systemctl enable httpd
	read -e -p "Do you want to configure mariadb (recomended if not done before) (Y/n)" KK
	[ "$KK" != "n" -a "$KK" != "no" ] && mysql_secure_installation

	read -e -p "Do you want to set firewall to grant web access port 80,443 (Y/n)" KK
	[ "$KK" != "n" -a "$KK" != "no" ] &&
	firewall-cmd --permanent --zone=public --add-service=http &&
	firewall-cmd --permanent --zone=public --add-service=https &&
	firewall-cmd --reload
	fi
	fi #[[ -z "$NO_PACKAGES" ]]

	#check and ask for database user password. Must be done after database installation
	if [[ -n $QUIET_MODE ]]
	then
	echo -e "\nCheking database connection and ask for credentials"
	while ! mysqladmin -s -u$DBUSER $DBPASSWD_PARAM status >/dev/null
	do
	[ -n "$logintry" ] && echo -e "\nInvalid database credentials!!!. Try again (Ctrl+c to abort)"
	[ -z "$logintry" ] && echo -e "\nProvide database credentials"
	read -e -p "database user? ($DBUSER) " DBUSER_
	[ -n "$DBUSER_" ] && DBUSER=$DBUSER_
	read -e -s -p "database password? (Enter for not using password) " DBPASSWD_
	[ -n "$DBPASSWD_" ] && DBPASSWD="$DBPASSWD_" && DBPASSWD_PARAM="-p$DBPASSWD_"
	[ -z "$DBPASSWD_" ] && DBPASSWD="" && DBPASSWD_PARAM=""
	logintry="yes"
	done
	fi

	if [[ -z "$NO_PACKAGES" ]]
	then
	echo '
	#################################################################
	##### INSTALL PYTHON PACKAGES #####
	#################################################################'
	[ "$_DISTRO" == "Ubuntu" ] && install_packages "python-yaml python-libvirt python-bottle python-mysqldb python-jsonschema python-paramiko python-argcomplete python-requests"
	[ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && install_packages "PyYAML libvirt-python MySQL-python python-jsonschema python-paramiko python-argcomplete python-requests"

	#The only way to install python-bottle on Centos7 is with easy_install or pip
	[ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && easy_install -U bottle

	fi #[[ -z "$NO_PACKAGES" ]]

	if [[ -z $NOCLONE ]]; then
	echo '
	#################################################################
	##### DOWNLOAD SOURCE #####
	#################################################################'
	if [[ -d "${OPENVIM_BASEFOLDER}" ]]
	then
	if [[ -n "$FORCE" ]]
	then
	echo "deleting '${OPENVIM_BASEFOLDER}' folder"
	rm -rf "$OPENVIM_BASEFOLDER" #make idempotent
	elif [[ -z "$QUIET_MODE" ]]
	then
	read -e -p "${OPENVIM_BASEFOLDER} folder exist, overwrite? (y/N)" KK
	if [[ "$KK" == "y" ]] \|\| [[ "$KK" == "yes" ]]
	then rm -rf "$OPENVIM_BASEFOLDER"
	else
	echo "canceled"
	exit 1
	fi
	else
	echo "'${OPENVIM_BASEFOLDER}' folder exist" >&2 && exit 1
	fi
	fi


	su $SUDO_USER -c "git clone ${GIT_URL} ${OPENVIM_BASEFOLDER}"
	su $SUDO_USER -c "cp ${OPENVIM_BASEFOLDER}/.gitignore-common ${OPENVIM_BASEFOLDER}/.gitignore"
	[[ -z $DEVELOP ]] && su $SUDO_USER -c "git -C ${OPENVIM_BASEFOLDER} checkout tags/v1.0.2"
	fi

	echo '
	#################################################################
	##### CREATE DATABASE #####
	#################################################################'
	echo -e "\nCreating temporary file form MYSQL installation and initialization"
	TEMPFILE="$(mktemp -q --tmpdir "installopenvim.XXXXXX")"
	trap 'rm -f "$TEMPFILE"' EXIT
	chmod 0600 "$TEMPFILE"
	echo -e "[client]\n user='$DBUSER'\n password='$DBPASSWD'">"$TEMPFILE"

	if db_exists "vim_db" $TEMPFILE ; then
	if [[ -n $FORCEDB ]]; then
	echo " Deleting previous database vim_db"
	DBDELETEPARAM=""
	[[ -n $QUIET_MODE ]] && DBDELETEPARAM="-f"
	mysqladmin --defaults-extra-file=$TEMPFILE -s drop vim_db $DBDELETEPARAM \|\| ! echo "Could not delete vim_db database" \|\| exit 1
	#echo "REVOKE ALL PRIVILEGES ON vim_db.* FROM 'vim'@'localhost';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	#echo "DELETE USER 'vim'@'localhost';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	mysqladmin --defaults-extra-file=$TEMPFILE -s create vim_db \|\| ! echo "Error creating vim_db database" \|\| exit 1
	echo "DROP USER 'vim'@'localhost';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	echo "CREATE USER 'vim'@'localhost' identified by 'vimpw';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	echo "GRANT ALL PRIVILEGES ON vim_db.* TO 'vim'@'localhost';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	echo " Database 'vim_db' created, user 'vim' password 'vimpw'"
	else
	echo "Database exists. Use option '--forcedb' to force the deletion of the existing one" && exit 1
	fi
	else
	mysqladmin -u$DBUSER $DBPASSWD_PARAM -s create vim_db \|\| ! echo "Error creating vim_db database" \|\| exit 1
	echo "CREATE USER 'vim'@'localhost' identified by 'vimpw';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	echo "GRANT ALL PRIVILEGES ON vim_db.* TO 'vim'@'localhost';" \| mysql --defaults-extra-file=$TEMPFILE -s \|\| ! echo "Failed while creating user vim at database" \|\| exit 1
	echo " Database 'vim_db' created, user 'vim' password 'vimpw'"
	fi

	echo '
	#################################################################
	##### INIT DATABASE #####
	#################################################################'
	su $SUDO_USER -c "${OPENVIM_BASEFOLDER}/database_utils/init_vim_db.sh -u vim -p vimpw -d vim_db" \|\| ! echo "Failed while initializing database" \|\| exit 1


	if [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ]
	then
	echo '
	#################################################################
	##### CONFIGURE firewalld #####
	#################################################################'
	read -e -p "Configure firewalld for openvimd port 9080? (Y/n)" KK
	if [ "$KK" != "n" -a "$KK" != "no" ]
	then
	#Creates a service file for openvim
	echo '<?xml version="1.0" encoding="utf-8"?>
	<service>
	<short>openvimd</short>
	<description>openvimd service</description>
	<port protocol="tcp" port="9080"/>
	</service>' > /etc/firewalld/services/openvimd.xml
	#put proper permissions
	pushd /etc/firewalld/services > /dev/null
	restorecon openvim
	chmod 640 openvim
	popd > /dev/null
	#Add the openvim service to the default zone permanently and reload the firewall configuration
	firewall-cmd --permanent --add-service=openvim > /dev/null
	firewall-cmd --reload > /dev/null
	echo "done."
	else
	echo "skipping."
	fi
	fi

	echo '
	#################################################################
	##### CONFIGURE openvim CLIENT #####
	#################################################################'
	#creates a link at ~/bin if not configured as a service
	if [[ -z "$INSTALL_AS_A_SERVICE" ]]
	then
	su $SUDO_USER -c 'mkdir -p ~/bin'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/openvim'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/openflow'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/service-openvim'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/initopenvim'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/service-floodlight'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/service-opendaylight'
	su $SUDO_USER -c 'rm -f ${HOME}/bin/get_dhcp_lease.sh'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/openvim' "'${HOME}/bin/openvim'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/openflow' "'${HOME}/bin/openflow'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/service-openvim.sh' "'${HOME}/bin/service-openvim'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/initopenvim.sh' "'${HOME}/bin/initopenvim'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/service-floodlight.sh' "'${HOME}/bin/service-floodlight'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/service-opendaylight.sh' "'${HOME}/bin/service-opendaylight'
	su $SUDO_USER -c "ln -s '${OPENVIM_BASEFOLDER}/scripts/get_dhcp_lease.sh' "'${HOME}/bin/get_dhcp_lease.sh'

	#insert /home/<user>/bin in the PATH
	#skiped because normally this is done authomatically when ~/bin exist
	#if ! su $SUDO_USER -c 'echo $PATH' \| grep -q "/home/${SUDO_USER}/bin"
	#then
	# echo " inserting /home/$SUDO_USER/bin in the PATH at .bashrc"
	# su $SUDO_USER -c 'echo "PATH=\$PATH:/home/\${USER}/bin" >> ~/.bashrc'
	#fi

	if [[ $SUDO_USER == root ]]
	then
	if ! echo $PATH \| grep -q "${HOME}/bin"
	then
	echo "PATH=\$PATH:\${HOME}/bin" >> ${HOME}/.bashrc
	fi
	fi
	fi

	#configure arg-autocomplete for this user
	#in case of minmal instalation this package is not installed by default
	[[ "$_DISTRO" == "CentOS" \|\| "$_DISTRO" == "Red" ]] && yum install -y bash-completion
	#su $SUDO_USER -c 'mkdir -p ~/.bash_completion.d'
	su $SUDO_USER -c 'activate-global-python-argcomplete --user'
	if ! grep -q bash_completion.d/python-argcomplete.sh ${HOME}/.bashrc
	then
	echo " inserting .bash_completion.d/python-argcomplete.sh execution at .bashrc"
	su $SUDO_USER -c 'echo ". ${HOME}/.bash_completion.d/python-argcomplete.sh" >> ~/.bashrc'
	fi



	if [[ -n "$INSTALL_AS_A_SERVICE" ]]
	then
	echo '
	#################################################################
	##### CONFIGURE OPENVIM SERVICE #####
	#################################################################'

	DELETE_PARAM="" && [[ -z "$NOCLONE" ]] && DELETE_PARAM="-d"
	${OPENVIM_BASEFOLDER}/scripts/install-openvim-service.sh -f ${OPENVIM_BASEFOLDER} ${DELETE_PARAM}
	# alias service-openvim="service openvim"
	# echo 'alias service-openvim="service openvim"' >> ${HOME}/.bashrc

	echo
	echo
	echo "Done! installed at /opt/openvim"
	echo " Manage server with 'service openvim start\|stop\|status\|...' "


	else

	echo
	echo "Done! you may need to logout and login again for loading client configuration"
	echo " Run 'service-openvim start' for starting openvim in a screen"

	fi