327 lines
11 KiB
Bash
327 lines
11 KiB
Bash
#!/bin/bash
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#######################################################
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# PandoraFMS Community online installation script
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#######################################################
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## Tested versions ##
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# Centos 8.4, 8.5
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# Rocky 8.4, 8.5, 8.6, 8.7
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# Almalinuz 8.4, 8.5
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# RedHat 8.5
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#Constants
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S_VERSION='202302201'
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LOGFILE="/tmp/deploy-ext-db-$(date +%F).log"
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# define default variables
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[ "$TZ" ] || TZ="Europe/Madrid"
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[ "$MYVER" ] || MYVER=80
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[ "$DBHOST" ] || DBHOST=127.0.0.1
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[ "$DBNAME" ] || DBNAME=pandora
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[ "$DBUSER" ] || DBUSER=pandora
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[ "$DBPASS" ] || DBPASS=pandora
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[ "$DBPORT" ] || DBPORT=3306
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[ "$DBROOTUSER" ] || DBROOTUSER=root
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[ "$DBROOTPASS" ] || DBROOTPASS=pandora
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[ "$SKIP_DATABASE_INSTALL" ] || SKIP_DATABASE_INSTALL=0
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[ "$SKIP_KERNEL_OPTIMIZATIONS" ] || SKIP_KERNEL_OPTIMIZATIONS=0
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[ "$POOL_SIZE" ] || POOL_SIZE=$(grep -i total /proc/meminfo | head -1 | awk '{printf "%.2f \n", $(NF-1)*0.4/1024}' | sed "s/\\..*$/M/g")
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# Ansi color code variables
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red="\e[0;91m"
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green="\e[0;92m"
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cyan="\e[0;36m"
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reset="\e[0m"
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# Functions
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execute_cmd () {
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local cmd="$1"
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local msg="$2"
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echo -e "${cyan}$msg...${reset}"
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$cmd &>> "$LOGFILE"
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if [ $? -ne 0 ]; then
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echo -e "${red}Fail${reset}"
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[ "$3" ] && echo "$3"
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echo "Error installing Pandora FMS for detailed error please check log: $LOGFILE"
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rm -rf "$HOME"/pandora_deploy_tmp &>> "$LOGFILE"
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exit 1
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else
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echo -e "\e[1A\e ${cyan}$msg...${reset} ${green}OK${reset}"
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return 0
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fi
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}
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check_cmd_status () {
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if [ $? -ne 0 ]; then
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echo -e "${red}Fail${reset}"
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[ "$1" ] && echo "$1"
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echo "Error installing Pandora FMS for detailed error please check log: $LOGFILE"
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rm -rf "$HOME"/pandora_deploy_tmp/*.rpm* &>> "$LOGFILE"
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exit 1
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else
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echo -e "${green}OK${reset}"
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return 0
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fi
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}
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check_root_permissions () {
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echo -en "${cyan}Checking root account... ${reset}"
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if [ "$(whoami)" != "root" ]; then
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echo -e "${red}Fail${reset}"
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echo "Please use a root account or sudo for installing Pandora FMS"
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echo "Error installing Pandora FMS for detailed error please check log: $LOGFILE"
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exit 1
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else
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echo -e "${green}OK${reset}"
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fi
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}
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## Main
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echo "Starting PandoraFMS External DB deployment EL8 ver. $S_VERSION"
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if ! grep --version &>> $LOGFILE ; then echo 'Error grep is not detected on the system, grep tool is needed for installation.'; exit -1 ;fi
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if ! sed --version &>> $LOGFILE ; then echo 'Error grep is not detected on the system, grep tool is needed for installation.'; exit -1 ;fi
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# Centos Version
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if [ ! "$(grep -Ei 'centos|rocky|Almalinux|Red Hat Enterprise' /etc/redhat-release)" ]; then
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printf "\n ${red}Error this is not a Centos/Rocky/Almalinux Base system, this installer is compatible with RHEL/Almalinux/Centos/Rockylinux systems only${reset}\n"
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exit 1
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fi
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echo -en "${cyan}Check Centos Version...${reset}"
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[ $(sed -nr 's/VERSION_ID+=\s*"([0-9]).*"$/\1/p' /etc/os-release) -eq '8' ]
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check_cmd_status 'Error OS version, RHEL/Almalinux/Centos/Rockylinux 8+ is expected'
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#Detect OS
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os_name=$(grep ^PRETTY_NAME= /etc/os-release | cut -d '=' -f2 | tr -d '"')
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execute_cmd "echo $os_name" "OS detected: ${os_name}"
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# initialice logfile
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execute_cmd "echo 'Starting community deployment' > $LOGFILE" "All installer activity is logged on $LOGFILE"
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echo "Community installer version: $S_VERSION" >> "$LOGFILE"
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# Pre checks
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# Root permisions
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check_root_permissions
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# Systemd
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execute_cmd "systemctl status" "Checking SystemD" 'This is not a SystemD enable system, if tryng to use in a docker env please check: https://github.com/pandorafms/pandorafms/tree/develop/extras/docker/centos8'
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# Check memomry greather or equal to 2G
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execute_cmd "[ $(grep MemTotal /proc/meminfo | awk '{print $2}') -ge 1700000 ]" 'Checking memory (required: 2 GB)'
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# Check disk size at least 10 Gb free space
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execute_cmd "[ $(df -BM / | tail -1 | awk '{print $4}' | tr -d M) -gt 10000 ]" 'Checking Disk (required: 10 GB free min)'
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# Setting timezone
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rm -rf /etc/localtime &>> "$LOGFILE"
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execute_cmd "timedatectl set-timezone $TZ" "Setting Timezone $TZ"
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# Execute tools check
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execute_cmd "awk --version" 'Checking needed tools: awk'
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execute_cmd "grep --version" 'Checking needed tools: grep'
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execute_cmd "sed --version" 'Checking needed tools: sed'
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execute_cmd "dnf --version" 'Checking needed tools: dnf'
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# Creating working directory
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rm -rf "$HOME"/pandora_deploy_tmp/*.rpm* &>> "$LOGFILE"
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mkdir "$HOME"/pandora_deploy_tmp &>> "$LOGFILE"
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execute_cmd "cd $HOME/pandora_deploy_tmp" "Moving to workspace: $HOME/pandora_deploy_tmp"
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## Extra steps on redhat envs
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if [ "$(grep -Ei 'Red Hat Enterprise' /etc/redhat-release)" ]; then
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## In case REDHAT
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# Check susbscription manager status:
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echo -en "${cyan}Checking Red Hat Enterprise subscription... ${reset}"
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subscription-manager list &>> "$LOGFILE"
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subscription-manager status &>> "$LOGFILE"
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check_cmd_status 'Error checking subscription status, make sure your server is activated and suscribed to Red Hat Enterprise repositories'
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# Ckeck repolist
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dnf repolist &>> "$LOGFILE"
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echo -en "${cyan}Checking Red Hat Enterprise repolist... ${reset}"
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dnf repolist | grep 'rhel-8-for-x86_64-baseos-rpms' &>> "$LOGFILE"
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check_cmd_status 'Error checking repositories status, could try a subscription-manager attach command or contact sysadmin'
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#install extra repos
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extra_repos=" \
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tar \
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dnf-utils \
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https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm \
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https://repo.percona.com/yum/percona-release-latest.noarch.rpm"
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execute_cmd "dnf install -y $extra_repos" "Installing extra repositories"
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execute_cmd "subscription-manager repos --enable codeready-builder-for-rhel-8-x86_64-rpms" "Enabling subscription to codeready-builder"
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else
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# For alma/rocky/centos
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extra_repos=" \
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tar \
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dnf-utils \
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epel-release \
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https://repo.percona.com/yum/percona-release-latest.noarch.rpm"
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execute_cmd "dnf install -y $extra_repos" "Installing extra repositories"
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execute_cmd "dnf config-manager --set-enabled powertools" "Configuring Powertools"
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fi
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#Installing wget
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execute_cmd "dnf install -y wget" "Installing wget"
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# Install percona Database
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execute_cmd "dnf module disable -y mysql" "Disabiling mysql module"
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if [ "$MYVER" -eq '80' ] ; then
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execute_cmd "percona-release setup ps80 -y" "Enabling mysql80 module"
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execute_cmd "dnf install -y percona-server-server percona-xtrabackup-80" "Installing Percona Server 80"
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fi
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if [ "$MYVER" -ne '80' ] ; then
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execute_cmd "dnf install -y Percona-Server-server-57 percona-xtrabackup-24" "Installing Percona Server 57"
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fi
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# Disabling SELINUX and firewalld
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setenforce 0 &>> "$LOGFILE"
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sed -i -e "s/^SELINUX=.*/SELINUX=disabled/g" /etc/selinux/config &>> "$LOGFILE"
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systemctl disable firewalld --now &>> "$LOGFILE"
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# Adding standar cnf for initial setup.
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cat > /etc/my.cnf << EO_CONFIG_TMP
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[mysqld]
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datadir=/var/lib/mysql
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socket=/var/lib/mysql/mysql.sock
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symbolic-links=0
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log-error=/var/log/mysqld.log
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pid-file=/var/run/mysqld/mysqld.pid
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EO_CONFIG_TMP
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#Configuring Database
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if [ "$SKIP_DATABASE_INSTALL" -eq '0' ] ; then
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execute_cmd "systemctl start mysqld" "Starting database engine"
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export MYSQL_PWD=$(grep "temporary password" /var/log/mysqld.log | rev | cut -d' ' -f1 | rev)
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if [ "$MYVER" -eq '80' ] ; then
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echo """
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SET PASSWORD FOR '$DBROOTUSER'@'localhost' = 'Pandor4!';
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UNINSTALL COMPONENT 'file://component_validate_password';
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SET PASSWORD FOR '$DBROOTUSER'@'localhost' = '$DBROOTPASS';
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""" | mysql --connect-expired-password -u$DBROOTUSER &>> "$LOGFILE"
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fi
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if [ "$MYVER" -ne '80' ] ; then
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echo """
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SET PASSWORD FOR '$DBROOTUSER'@'localhost' = PASSWORD('Pandor4!');
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UNINSTALL PLUGIN validate_password;
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SET PASSWORD FOR '$DBROOTUSER'@'localhost' = PASSWORD('$DBROOTPASS');
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""" | mysql --connect-expired-password -u$DBROOTUSER &>> "$LOGFILE"fi
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fi
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export MYSQL_PWD=$DBROOTPASS
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echo -en "${cyan}Creating Pandora FMS database...${reset}"
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echo "create database $DBNAME" | mysql -u$DBROOTUSER -P$DBPORT -h$DBHOST
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check_cmd_status "Error creating database $DBNAME, is this an empty node? if you have a previus installation please contact with support."
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echo "CREATE USER \"$DBUSER\"@'%' IDENTIFIED BY \"$DBPASS\";" | mysql -u$DBROOTUSER -P$DBPORT -h$DBHOST
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echo "ALTER USER \"$DBUSER\"@'%' IDENTIFIED WITH mysql_native_password BY \"$DBPASS\"" | mysql -u$DBROOTUSER -P$DBPORT -h$DBHOST
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echo "GRANT ALL PRIVILEGES ON $DBNAME.* TO \"$DBUSER\"@'%'" | mysql -u$DBROOTUSER -P$DBPORT -h$DBHOST
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#Generating my.cnf
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cat > /etc/my.cnf << EO_CONFIG_F
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[mysqld]
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datadir=/var/lib/mysql
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socket=/var/lib/mysql/mysql.sock
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user=mysql
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character-set-server=utf8
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skip-character-set-client-handshake
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# Disabling symbolic-links is recommended to prevent assorted security risks
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symbolic-links=0
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# Mysql optimizations for Pandora FMS
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# Please check the documentation in http://pandorafms.com for better results
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max_allowed_packet = 64M
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innodb_buffer_pool_size = $POOL_SIZE
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innodb_lock_wait_timeout = 90
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innodb_file_per_table
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innodb_flush_log_at_trx_commit = 0
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innodb_flush_method = O_DIRECT
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innodb_log_file_size = 64M
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innodb_log_buffer_size = 16M
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innodb_io_capacity = 100
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thread_cache_size = 8
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thread_stack = 256K
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max_connections = 100
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key_buffer_size=4M
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read_buffer_size=128K
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read_rnd_buffer_size=128K
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sort_buffer_size=128K
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join_buffer_size=4M
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query_cache_type = 1
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query_cache_size = 64M
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query_cache_min_res_unit = 2k
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query_cache_limit = 256K
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#skip-log-bin
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sql_mode=""
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[mysqld_safe]
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log-error=/var/log/mysqld.log
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pid-file=/var/run/mysqld/mysqld.pid
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EO_CONFIG_F
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if [ "$MYVER" -eq '80' ] ; then
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sed -i -e "/query_cache.*/ s/^#*/#/g" /etc/my.cnf
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sed -i -e "s/#skip-log-bin/skip-log-bin/g" /etc/my.cnf
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sed -i -e "s/character-set-server=utf8/character-set-server=utf8mb4/g" /etc/my.cnf
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fi
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execute_cmd "systemctl restart mysqld" "Configuring database engine"
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execute_cmd "systemctl enable mysqld --now" "Enabling Database service"
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fi
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export MYSQL_PWD=$DBPASS
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# Kernel optimization
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if [ "$SKIP_KERNEL_OPTIMIZATIONS" -eq '0' ] ; then
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cat >> /etc/sysctl.conf <<EO_KO
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# Pandora FMS Optimization
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# default=5
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net.ipv4.tcp_syn_retries = 3
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# default=5
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net.ipv4.tcp_synack_retries = 3
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# default=1024
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net.ipv4.tcp_max_syn_backlog = 65536
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# default=124928
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net.core.wmem_max = 8388608
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# default=131071
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net.core.rmem_max = 8388608
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# default = 128
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net.core.somaxconn = 1024
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# default = 20480
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net.core.optmem_max = 81920
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EO_KO
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[ -d /dev/lxd/ ] || execute_cmd "sysctl --system" "Applying Kernel optimization"
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fi
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execute_cmd "echo done" "Percona server installed"
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cd
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execute_cmd "rm -rf $HOME/pandora_deploy_tmp" "Removing temporary files" |