source: installer/opengnsys_installer.sh @ 893ebb02

#!/bin/bash

#####################################################################
####### Script instalador OpenGnsys
####### autor: Luis Guillén <lguillen@unizar.es>
#####################################################################


WORKDIR=/tmp/opengnsys_installer
LOG_FILE=$WORKDIR/installation.log

# Array con las dependencias
DEPENDENCIES=( subversion php5 mysql-server nfs-kernel-server dhcp3-server udpcast bittorrent apache2 php5 mysql-server php5-mysql tftpd-hpa syslinux tftp-hpa openbsd-inetd update-inetd )

INSTALL_TARGET=/opt/opengnsys

MYSQL_ROOT_PASSWORD="passwordroot"

# conexión al svn
SVN_URL=svn://www.informatica.us.es:3690/opengnsys

# Datos de base de datos
HIDRA_DATABASE=bdhidra
HIDRA_DB_USER=usuhidra
HIDRA_DB_PASSWD=passusuhidra
HIDRA_DB_CREATION_FILE=eac-hidra/branches/eac-hidra-us/Hidra/doc/hidra-bd.sql

USUARIO=`whoami`

if [ $USUARIO != 'root' ]
then
        echo "ERROR: this program must run under root privileges!!"
        exit 1
fi


mkdir -p $WORKDIR
pushd $WORKDIR

#####################################################################
####### Algunas funciones útiles de propósito general:
#####################################################################
getDateTime()
{
        echo `date +%Y%m%d-%H%M%S`
}

# Escribe a fichero y muestra por pantalla
echoAndLog()
{
        echo $1
        FECHAHORA=`getDateTime`
        echo "$FECHAHORA;$SSH_CLIENT;$1" >> $LOG_FILE
}

errorAndLog()
{
        echo "ERROR: $1"
        FECHAHORA=`getDateTime`
        echo "$FECHAHORA;$SSH_CLIENT;ERROR: $1" >> $LOG_FILE
}

# comprueba si el elemento pasado en $2 esta en el array $1
isInArray()
{
        if [ $# -ne 2 ]; then
                errorAndLog "isInArray(): invalid number of parameters"
                exit 1
        fi

        echoAndLog "isInArray(): checking if $2 is in $1"
        local deps
        eval "deps=( \"\${$1[@]}\" )"
        elemento=$2

        local is_in_array=1
        # copia local del array del parametro 1
        for (( i = 0 ; i < ${#deps[@]} ; i++ ))
        do
                if [ "${deps[$i]}" = "${elemento}" ]; then
                        echoAndLog "isInArray(): $elemento found in array"
                        is_in_array=0
                fi
        done

        if [ $is_in_array -ne 0 ]; then
                echoAndLog "isInArray(): $elemento NOT found in array"
        fi

        return $is_in_array

}

#####################################################################
####### Funciones de manejo de paquetes Debian
#####################################################################

checkPackage()
{
        package=$1
        if [ -z $package ]; then
                errorAndLog "checkPackage(): parameter required"
                exit 1
        fi
        echoAndLog "checkPackage(): checking if package $package exists"
        dpkg -L $package &>/dev/null
        if [ $? -eq 0 ]; then
                echoAndLog "checkPackage(): package $package exists"
                return 0
        else
                echoAndLog "checkPackage(): package $package doesn't exists"
                return 1
        fi
}

# recibe array con dependencias
# por referencia deja un array con las dependencias no resueltas
# devuelve 1 si hay alguna dependencia no resuelta
checkDependencies()
{
        if [ $# -ne 2 ]; then
                errorAndLog "checkDependencies(): invalid number of parameters"
                exit 1
        fi

        echoAndLog "checkDependencies(): checking dependences"
        uncompletedeps=0

        # copia local del array del parametro 1
        local deps
        eval "deps=( \"\${$1[@]}\" )"

        declare -a local_notinstalled

        for (( i = 0 ; i < ${#deps[@]} ; i++ ))
        do
                checkPackage ${deps[$i]}
                if [ $? -ne 0 ]; then
                        local_notinstalled[$uncompletedeps]=$package
                        let uncompletedeps=uncompletedeps+1
                fi
        done

        # relleno el array especificado en $2 por referencia
        for (( i = 0 ; i < ${#local_notinstalled[@]} ; i++ ))
        do
                eval "${2}[$i]=${local_notinstalled[$i]}"
        done

        # retorna el numero de paquetes no resueltos
        echoAndLog "checkDependencies(): dependencies uncompleted: $uncompletedeps"
        return $uncompletedeps
}

# Recibe un array con las dependencias y lo instala
installDependencies()
{
        if [ $# -ne 1 ]; then
                errorAndLog "installDependencies(): invalid number of parameters"
                exit 1
        fi
        echoAndLog "installDependencies(): installing uncompleted dependencies"

        # copia local del array del parametro 1
        local deps
        eval "deps=( \"\${$1[@]}\" )"

        local string_deps=""
        for (( i = 0 ; i < ${#deps[@]} ; i++ ))
        do
                string_deps="$string_deps ${deps[$i]}"
        done

        if [ -z "${string_deps}" ]; then
                errorAndLog "installDependencies(): array of dependeces is empty"
                exit 1
        fi

        OLD_DEBIAN_FRONTEND=$DEBIAN_FRONTEND
        export DEBIAN_FRONTEND=noninteractive

        echoAndLog "installDependencies(): now ${string_deps} will be installed"
        apt-get -y install --force-yes ${string_deps}
        if [ $? -ne 0 ]; then
                errorAndLog "installDependencies(): error installing dependencies"
                return 1
        fi

        DEBIAN_FRONTEND=$OLD_DEBIAN_FRONTEND
        echoAndLog "installDependencies(): dependencies installed"
}

#####################################################################
####### Funciones para el manejo de bases de datos
#####################################################################

# This function set password to root
mysqlSetRootPassword()
{
        if [ $# -ne 1 ]; then
                errorAndLog "mysqlSetRootPassword(): invalid number of parameters"
                exit 1
        fi

        local root_mysql=$1
        echoAndLog "mysqlSetRootPassword(): setting root password in MySQL server"
        /usr/bin/mysqladmin -u root password ${root_mysql}
        if [ $? -ne 0 ]; then
                errorAndLog "mysqlSetRootPassword(): error while setting root password in MySQL server"
                return 1
        fi
        echoAndLog "mysqlSetRootPassword(): root password saved!"
        return 0
}

# comprueba si puede conectar con mysql con el usuario root
function mysqlTestConnection()
{
        if [ $# -ne 1 ]; then
                errorAndLog "mysqlTestConnection(): invalid number of parameters"
                exit 1
        fi

        local root_password="${1}"
        echoAndLog "mysqlTestConnection(): checking connection to mysql..."
        echo "" | mysql -uroot -p"${root_password}"
        if [ $? -ne 0 ]; then
                errorAndLog "mysqlTestConnection(): connection to mysql failed, check root password and if daemon is running!"
                return 1
        else
                echoAndLog "mysqlTestConnection(): connection success"
                return 0
        fi
}

# comprueba si la base de datos existe
function mysqlDbExists()
{
        if [ $# -ne 2 ]; then
                errorAndLog "mysqlDbExists(): invalid number of parameters"
                exit 1
        fi

        local root_password="${1}"
        local database=$2
        echoAndLog "mysqlDbExists(): checking if $database exists..."
        echo "show databases" | mysql -uroot -p"${root_password}" | grep "^${database}$"
        if [ $? -ne 0 ]; then
                echoAndLog "mysqlDbExists():database $database doesn't exists"
                return 1
        else
                echoAndLog "mysqlDbExists():database $database exists"
                return 0
        fi
}

function mysqlCheckDbIsEmpty()
{
        if [ $# -ne 2 ]; then
                errorAndLog "mysqlCheckDbIsEmpty(): invalid number of parameters"
                exit 1
        fi

        local root_password="${1}"
        local database=$2
        echoAndLog "mysqlCheckDbIsEmpty(): checking if $database is empty..."
        num_tablas=`echo "show tables" | mysql -uroot -p"${root_password}" "${database}" | wc -l`
        if [ $? -ne 0 ]; then
                errorAndLog "mysqlCheckDbIsEmpty(): error executing query, check database and root password"
                exit 1
        fi

        if [ $num_tablas -eq 0 ]; then
                echoAndLog "mysqlCheckDbIsEmpty():database $database is empty"
                return 0
        else
                echoAndLog "mysqlCheckDbIsEmpty():database $database has tables"
                return 1
        fi

}


function mysqlImportSqlFileToDb()
{
        if [ $# -ne 3 ]; then
                errorAndLog "mysqlImportSqlFileToDb(): invalid number of parameters"
                exit 1
        fi

        local root_password="${1}"
        local database=$2
        local sqlfile=$3

        if [ ! -f $sqlfile ]; then
                errorAndLog "mysqlImportSqlFileToDb(): Unable to locate $sqlfile!!"
                return 1
        fi

        echoAndLog "mysqlImportSqlFileToDb(): importing sql file to ${database}..."
        mysql -uroot -p"${root_password}" "${database}" < $sqlfile
        if [ $? -ne 0 ]; then
                errorAndLog "mysqlImportSqlFileToDb(): error while importing $sqlfile in database $database"
                return 1
        fi
        echoAndLog "mysqlImportSqlFileToDb(): file imported to database $database"
        return 0
}

# Crea la base de datos
function mysqlCreateDb()
{
        if [ $# -ne 2 ]; then
                errorAndLog "mysqlCreateDb(): invalid number of parameters"
                exit 1
        fi

        local root_password="${1}"
        local database=$2

        echoAndLog "mysqlCreateDb(): creating database..."
        mysqladmin -u root --password="${root_password}" create $database
        if [ $? -ne 0 ]; then
                errorAndLog "mysqlCreateDb(): error while creating database $database"
                return 1
        fi
        errorAndLog "mysqlCreateDb(): database $database created"
        return 0
}


function mysqlCheckUserExists()
{
        if [ $# -ne 2 ]; then
                errorAndLog "mysqlCheckUserExists(): invalid number of parameters"
                exit 1
        fi

        local root_password="${1}"
        local userdb=$2

        echoAndLog "mysqlCheckUserExists(): checking if $userdb exists..."
        echo "select user from user where user='${userdb}'\\G" |mysql -uroot -p"${root_password}" mysql | grep user
        if [ $? -ne 0 ]; then
                echoAndLog "mysqlCheckUserExists(): user doesn't exists"
                return 1
        else
                echoAndLog "mysqlCheckUserExists(): user already exists"
                return 0
        fi

}

# Crea un usuario administrativo para la base de datos
function mysqlCreateAdminUserToDb()
{
        if [ $# -ne 4 ]; then
                errorAndLog "mysqlCreateAdminUserToDb(): invalid number of parameters"
                exit 1
        fi

        local root_password=$1
        local database=$2
        local userdb=$3
        local passdb=$4

        echoAndLog "mysqlCreateAdminUserToDb(): creating admin user ${userdb} to database ${database}"

        cat > $WORKDIR/create_${database}.sql <<EOF
GRANT USAGE ON *.* TO '${userdb}'@'localhost' IDENTIFIED BY '${passdb}' ;
GRANT ALL PRIVILEGES ON ${database}.* TO '${userdb}'@'localhost' WITH GRANT OPTION ;
FLUSH PRIVILEGES ;
EOF
        mysql -u root --password=${root_password} < $WORKDIR/create_${database}.sql
        if [ $? -ne 0 ]; then
                errorAndLog "mysqlCreateAdminUserToDb(): error while creating user in mysql"
                rm -f $WORKDIR/create_${database}.sql
                return 1
        else
                echoAndLog "mysqlCreateAdminUserToDb(): user created ok"
                rm -f $WORKDIR/create_${database}.sql
                return 0
        fi
}


#####################################################################
####### Funciones para el manejo de Subversion
#####################################################################

svnCheckoutCode()
{
        if [ $# -ne 1 ]; then
                errorAndLog "svnCheckoutCode(): invalid number of parameters"
                exit 1
        fi

        local url=$1

        echoAndLog "svnCheckoutCode(): downloading subversion code..."

        /usr/bin/svn co "${url}"
        if [ $? -ne 0 ]; then
                errorAndLog "svnCheckoutCode(): error getting code from ${url}, verify your user and password"
                return 1
        fi
        echoAndLog "svnCheckoutCode(): subversion code downloaded"
        return 0
}

#####################################################################
####### Funciones específicas de la instalación de Opengnsys
#####################################################################

function openGnsysInstallHidraApacheConf()
{
        if [ $# -ne 2 ]; then
                errorAndLog "openGnsysInstallHidraApacheConf(): invalid number of parameters"
                exit 1
        fi

        local path_opengnsys_base=$1
        local path_apache2_confd=$2
        local path_web_hidra=${path_opengnsys_base}/www

        echoAndLog "openGnsysInstallHidraApacheConf(): creating apache2 config file.."

        # genera configuración
        cat > $WORKDIR/apache.conf <<EOF
# Hidra web interface configuration for Apache

Alias /hidra ${path_web_hidra}

<Directory ${path_web_hidra}>
        Options -Indexes FollowSymLinks
        DirectoryIndex acceso.php
</Directory>
EOF

        if [ ! -d $path_apache2_confd ]; then
                errorAndLog "openGnsysInstallHidraApacheConf(): path to apache2 conf.d can not found, verify your server installation"
                rm -f $WORKDIR/apache.conf
                return 1
        fi
        cp $WORKDIR/apache.conf $path_opengnsys_base/etc
        ln -s $path_opengnsys_base/etc/apache.conf $path_apache2_confd/hidra.conf
        if [ $? -ne 0 ]; then
                errorAndLog "openGnsysInstallHidraApacheConf(): config file can't be linked to apache conf, verify your server installation"
                rm -f $WORKDIR/apache.conf
                return 1
        else
                echoAndLog "openGnsysInstallHidraApacheConf(): config file created and linked, restart your apache daemon"
                rm -f $WORKDIR/apache.conf
                return 0
        fi
}

# Crea la estructura base de la instalación de opengnsys
openGnsysInstallCreateDirs()
{
        if [ $# -ne 1 ]; then
                errorAndLog "openGnsysInstallCreateDirs(): invalid number of parameters"
                exit 1
        fi

        local path_opengnsys_base=$1

        echoAndLog "openGnsysInstallCreateDirs(): creating directory paths in $path_opengnsys_base"

        mkdir -p $path_opengnsys_base
        mkdir -p $path_opengnsys_base/bin
        mkdir -p $path_opengnsys_base/client
        mkdir -p $path_opengnsys_base/etc
        mkdir -p $path_opengnsys_base/lib
        mkdir -p $path_opengnsys_base/log/clients
        mkdir -p $path_opengnsys_base/www
        mkdir -p $path_opengnsys_base/tftpboot/ogclients
        mkdir -p $path_opengnsys_base/images

        if [ $? -ne 0 ]; then
                errorAndLog "openGnsysInstallCreateDirs(): error while creating dirs. Do you have write permissions?"
                return 1
        fi

        echoAndLog "openGnsysInstallCreateDirs(): directory paths created"
        return 0
}

# Copia ficheros de configuración y ejecutables genéricos del servidor.
openGnsysCopyServerFiles () {
        if [ $# -ne 1 ]; then
                errorAndLog "openGnsysCopyServerFiles(): invalid number of parameters"
                exit 1
        fi

        local path_opengnsys_base=$1

        local SOURCES=( client/boot/initrd-generator \
                    client/boot/upgrade-clients-udeb.sh \
                    client/boot/udeblist.conf )
        local TARGETS=( bin/initrd-generator \
                    bin/upgrade-clients-udeb.sh \
                    etc/udeblist.conf )

        if [ ${#SOURCES[@]} != ${#TARGETS[@]} ]; then
                errorAndLog "openGnsysCopyServerFiles(): inconsistent number of array items"
                exit 1
        fi

    echoAndLog "openGnsysCopyServerFiles(): copying files to server directories"

    pushd opengnsys/trunk >/dev/null
        local i
        for (( i = 0; i < ${#SOURCES[@]}; i++ )); do
                if [ -f "${SOURCES[$i]}" ]; then
                        echoAndLog "copying ${SOURCES[$i]} to $path_opengnsys_base/${TARGETS[$i]}"
                        cp -p "${SOURCES[$i]}" "${path_opengnsys_base}/${TARGETS[$i]}"
                fi
                if [ -d "${SOURCES[$i]}" ]; then
                        echoAndLog "openGnsysCopyServerFiles(): copying content of ${SOURCES[$i]} to $path_opengnsys_base/${TARGETS[$i]}"
                        cp -pr "${SOURCES[$i]}/*" "${path_opengnsys_base}/${TARGETS[$i]}"
                fi
        done
    popd >/dev/null
}


#####################################################################
####### Proceso de instalación
#####################################################################

        
# Proceso de instalación de opengnsys
declare -a notinstalled
checkDependencies DEPENDENCIES notinstalled
if [ $? -ne 0 ]; then
        installDependencies notinstalled
        if [ $? -ne 0 ]; then
                echoAndLog "Error while installing some dependeces, please verify your server installation before continue"
                exit 1
        fi
fi

isInArray notinstalled "mysql-server"
if [ $? -eq 0 ]; then
        mysqlSetRootPassword ${MYSQL_ROOT_PASSWORD}
fi

openGnsysInstallCreateDirs ${INSTALL_TARGET}
if [ $? -ne 0 ]; then
        errorAndLog "Error while creating directory paths!"
        exit 1
fi
svnCheckoutCode $SVN_URL
if [ $? -ne 0 ]; then
        errorAndLog "Error while getting code from svn"
        exit 1
fi

openGnsysCopyServerFiles ${INSTALL_TARGET}
if [ $? -ne 0 ]; then
        errorAndLog "Error while copying the server files!"
        exit 1
fi


mysqlTestConnection ${MYSQL_ROOT_PASSWORD}
if [ $? -ne 0 ]; then
        errorAndLog "Error while connection to mysql"
        exit 1
fi
mysqlDbExists ${MYSQL_ROOT_PASSWORD} ${HIDRA_DATABASE}
if [ $? -ne 0 ]; then
        echoAndLog "Creating hidra database"
        mysqlCreateDb ${MYSQL_ROOT_PASSWORD} ${HIDRA_DATABASE}
        if [ $? -ne 0 ]; then
                errorAndLog "Error while creating hidra database"
                exit 1
        fi
else
        echoAndLog "Hidra database exists, ommiting creation"
fi

mysqlCheckUserExists ${MYSQL_ROOT_PASSWORD} ${HIDRA_DB_USER}
if [ $? -ne 0 ]; then
        echoAndLog "Creating user in database"
        mysqlCreateAdminUserToDb ${MYSQL_ROOT_PASSWORD} ${HIDRA_DATABASE} ${HIDRA_DB_USER} "${HIDRA_DB_PASS}"
        if [ $? -ne 0 ]; then
                errorAndLog "Error while creating hidra user"
                exit 1
        fi

fi

mysqlCheckDbIsEmpty ${MYSQL_ROOT_PASSWORD} ${HIDRA_DATABASE}
if [ $? -eq 0 ]; then
        echoAndLog "Creating tables..."
        if [ -f $WORKDIR/$HIDRA_DB_CREATION_FILE ]; then
                mysqlImportSqlFileToDb ${MYSQL_ROOT_PASSWORD} ${HIDRA_DATABASE} $WORKDIR/$HIDRA_DB_CREATION_FILE
        else
                errorAndLog "Unable to locate $WORKDIR/$HIDRA_DB_CREATION_FILE!!"
                exit 1
        fi
fi

echoAndLog "Installing web files..."
# copiando paqinas web
cp -pr eac-hidra/branches/eac-hidra-us/Hidra/webhidra/* $INSTALL_TARGET/www   #*/ comentario para doxigen

# creando configuracion de apache2
openGnsysInstallHidraApacheConf $INSTALL_TARGET /etc/apache2/conf.d
if [ $? -ne 0 ]; then
        errorAndLog "Error while creating hidra apache config"
        exit 1
fi

popd
#rm -rf $WORKDIR
echoAndLog "Process finalized!"



function TestPxe () {
        cd /tmp
        echo "comprobando servidio pxe ..... Espere"
        tftp -v localhost -c get pxelinux.0 /tmp/pxelinux.0 && echo "servidor tftp OK" || echo "servidor tftp KO"
        cd /
}

function preparacontenedortft() {
############################################################
### Esqueleto para el Servicio pxe y contenedor tftpboot ##############
###########################################################
        basetftp=/var/lib/tftpboot
        basetftpaux=/tftpboot
        basetftpog=/opt/opengnsys/tftpboot
        # creamos los correspondientes enlaces hacia nuestro contenedor.
        ln -s ${basetftp} ${basetftpog}
        ln -s ${basetftpaux} ${basetftpog}

        # reiniciamos demonio internet
        /etc/init.d/openbsd-inetd start

        ##preparcion contendor tftpboot
        cp -pr /usr/lib/syslinux/ ${basetftpboot}/syslinux
        cp /usr/lib/syslinux/pxelinux.0 $basetftpboot
        # prepamos el directorio de la configuracion de pxe
        mkdir -p ${basetftpboot}/pxelinux.cfg
        touch ${basetftpboot}/pxelinux.cfg/default
        # comprobamos el servicio tftp
        sleep 1
        TestPxe
        ## damos perfimos de lectura a usuario web.
        chown -R www-data:www-data /var/lib/tftpboot
        ######### fin revisar2 contenedor tftp
}