Script to Install LEMP Stack
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Price Hiller
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CentOS/Install-LEMP-Stack.bash
Executable file
170
CentOS/Install-LEMP-Stack.bash
Executable file
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#!/bin/bash
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set -e
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echo_rgb() {
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# Echo a colored string to the terminal based on rgb values
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#
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# Positional Arguments:
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#
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# message <type: string> <position: 1> <required: true>
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# - The message to be printed to stdout
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# red <type: int> <position: 2> <required: true>
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# - The red value from 0 to 255
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# green <type: int> <position: 3> <required: true>
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# - The green value from 0 to 255
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# blue <type: int> <position: 4> <required: true>
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# - The blue value from 0 to 255
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#
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# Usage:
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# echo_rgb "Yep" 10 8 30
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#
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# POSIX Compliant:
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# N/A
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#
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local red
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local green
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local blue
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local input
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input="${1}"
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red="${2}"
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green="${3}"
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blue="${4}"
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printf "\e[0;38;2;%s;%s;%sm%s\e[m\n" "${red}" "${green}" "${blue}" "${input}"
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}
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log() {
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# Print a message and send it to stdout or stderr depending upon log level, also configurable with debug etc.
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#
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# Arguments:
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# level <type: string> <position: 1> <required: true>
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# - The log level, defined within a case check in this function
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# message <type: string> <position: 2> <required: true>
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# - The info message
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# line_number <type: int> <position: 3> <required: false>
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# - The line number of the calling function (${LINNO})
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#
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# Usage:
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# log "info" "Could not find that directory"
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#
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# POSIX Compliant:
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# Yes
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#
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# Set debug status depending if a global debug variable has been set to either 1 or 0
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local debug
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if [ ${DEBUG} ]; then
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debug=${DEBUG}
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else
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debug=0
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fi
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local FORMAT
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FORMAT="[$(echo_rgb "$(date +%Y-%m-%dT%H:%M:%S)" 180 140 255)]"
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# Convert the level to uppercase
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local level
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level=$(echo "${1}" | tr '[:lower:]' '[:upper:]')
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local message
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message="${2}"
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case "${level}" in
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INFO)
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# Output all info log levels to stdout
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printf "${FORMAT}[$(echo_rgb "INFO" 0 140 255)] %s\n" "${message}" >&1
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return 0
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;;
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WARN | WARNING)
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# Output all info log levels to stdout
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printf "${FORMAT}[$(echo_rgb "WARNING" 255 255 0)] %s\n" "${message}" >&1
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return 0
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;;
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DEBUG)
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[[ ${debug} == 0 ]] && return
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printf "${FORMAT}[$(echo_rgb "DEBUG" 0 160 110)] %s\n" "${message}" >&1
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return 0
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;;
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ERROR)
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# Output all error log levels to stderr
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printf "${FORMAT}[$(echo_rgb "ERROR" 255 0 0)] %s\n" "${message}" >&2
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return 0
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;;
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# Further log levels can be added by extending this switch statement with more comparisons
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*) # Default case, no matches
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# Returns non-zero code as an improper log option was passed, this helps with using `set -e`
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printf "${FORMAT}[ERROR] %s\n" "Invalid log level passed, received level \"${level}\" with message \"${message}\"" >&2
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return 1
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;;
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esac
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}
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[[ "$(id -u)" -ne 0 ]] && log "error" "$(basename "${0}") must be ran as root, exiting..." && exit 1
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log "info" "Adding firewall rules for http & https"
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firewall-cmd --permanent --add-service=http
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firewall-cmd --permanent --add-service=https
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firewall-cmd --reload
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log "info" "Installing nginx"
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dnf -y install nginx
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log "info" "Enabling nginx at startup and starting nginx"
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systemctl enable nginx
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systemctl start nginx
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log "info" "Installing mariadb & mariadb-server (mysql)"
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dnf -y install mariadb mariadb-server
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log "info" "Enabling mariadb at startup and starting nginx"
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systemctl enable mariadb
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systemctl start mariadb
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log "info" "Running mariadb secure installation"
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mysql_secure_installation
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log "info" "Installing pfp-fpm, php-mysqlnd, & php-cli"
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dnf -y install php-fpm php-mysqlnd php-cli
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PHP_INI_LOCATION="/etc/php.ini"
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log "info" "Updating php.ini located at ${PHP_INI_LOCATION}"
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while read -r line; do
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if [[ "${line}" == cgi.fix_pathinfo=* ]]; then
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# Overwrites cgi.fix_pathinfo by setting it to 1
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echo "${line//cgi.fix_path_info=*/cgi.fix_pathinfo=1}"
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else
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echo "${line}"
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fi
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done < "${PHP_INI_LOCATION}" > "php.temp" && mv "php.temp" "${PHP_INI_LOCATION}"
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PHP_WWW_CONF_LOCATION="/etc/php-fpm.d/www.conf"
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log "info" "Updating php-fpm www.conf located at ${PHP_WWW_CONF_LOCATION}"
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while read -r line; do
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if [[ "${line}" == pm.min_spare_servers* ]]; then
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# Uncomments the pm.min_spare_servers line
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echo "${line//*pm.min_spare_servers*/pm.min_spare_servers = 5}"
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elif [[ "${line}" == pm.max_spare_servers* ]]; then
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# Uncomments the pm.max_spare_servers line
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echo "${line//*pm.max_spare_servers*/pm.max_spare_servers = 35}"
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elif [[ "${line}" == "listen ="* ]]; then
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# Changes the listen parameter to 127.0.0.1
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echo "${line//listen =*/listen = 127.0.0.1:9000}"
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else
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echo "${line}"
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fi
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done < "${PHP_WWW_CONF_LOCATION}" > "php.www.temp" && mv "php.www.temp" "${PHP_WWW_CONF_LOCATION}"
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log "info" "Restoring SELinux settings for php-fpm.conf"
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restorecon -v "${PHP_WWW_CONF_LOCATION}"
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log "info" "Enabling php-fpm and starting php-fpm"
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systemctl enable php-fpm
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systemctl start php-fpm
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log "info" "Finished installing LEMP stack, virtual host files should be place in /etc/nginx/conf.d/"
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