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v2.0.1
LEMPer/scripts/install_memcached.sh
Edi Septriyanto f59710bda5 Small fix
2021-06-05 16:34:16 +07:00

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#!/usr/bin/env bash
# Memcached Installer
# Min. Requirement : GNU/Linux Ubuntu 16.04 & 16.04
# Last Build : 31/08/2019
# Author : MasEDI.Net (me@masedi.net)
# Since Version : 1.0.0
# Include helper functions.
if [ "$(type -t run)" != "function" ]; then
BASEDIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )
# shellchechk source=scripts/helper.sh
# shellcheck disable=SC1090
. "${BASEDIR}/helper.sh"
fi
# Make sure only root can run this installer script.
requires_root
##
# Memcached install
#
# Usage: install_memcached [VERSION] [INSTALLER]
#
function install_memcached() {
local SELECTED_INSTALLER=""
if "${AUTO_INSTALL}"; then
if [[ ${INSTALL_MEMCACHED} == true ]]; then
DO_INSTALL_MEMCACHED="y"
SELECTED_INSTALLER=${MEMCACHED_INSTALLER:-"repo"}
else
DO_INSTALL_MEMCACHED="n"
fi
else
while [[ "${DO_INSTALL_MEMCACHED}" != "y" && "${DO_INSTALL_MEMCACHED}" != "n" ]]; do
read -rp "Do you want to install Memcached server? [y/n]: " -i y -e DO_INSTALL_MEMCACHED
done
fi
if [[ ${DO_INSTALL_MEMCACHED} == y* || ${DO_INSTALL_MEMCACHED} == Y* ]]; then
# Install menu.
if ! "${AUTO_INSTALL}"; then
echo "Available Memcached installation method:"
echo " 1). Install from Repository (repo)"
echo " 2). Compile from Source (source)"
echo "-------------------------------------"
while [[ ${SELECTED_INSTALLER} != "1" && ${SELECTED_INSTALLER} != "2" && ${SELECTED_INSTALLER} != "none" && \
${SELECTED_INSTALLER} != "repo" && ${SELECTED_INSTALLER} != "source" ]]; do
read -rp "Select an option [1-2]: " -e SELECTED_INSTALLER
done
fi
case "${SELECTED_INSTALLER}" in
1|"repo")
echo "Installing Memcached server from repository..."
if hash apt 2>/dev/null; then
install_dependencies "apt install -qq -y" debian_is_installed \
libevent-dev libsasl2-dev libmemcached-tools libmemcached11 libmemcachedutil2 memcached
else
fail "Unable to install Memcached, this GNU/Linux distribution is not supported."
fi
;;
2|"source")
echo "Installing Memcached server from source..."
if hash apt 2>/dev/null; then
install_dependencies "apt install -qq -y" debian_is_installed \
libevent-dev libsasl2-dev libmemcached-tools libmemcached11 libmemcachedutil2
else
fail "Unable to install Memcached, this GNU/Linux distribution is not supported."
fi
local CURRENT_DIR && \
CURRENT_DIR=$(pwd)
run cd "${BUILD_DIR}"
# Install Libevent from source.
#LIBEVENT_DOWNLOAD_URL="https://github.com/libevent/libevent/releases/download/release-2.1.11-stable/libevent-2.1.11-stable.tar.gz"
#if curl -sLI "${LIBEVENT_DOWNLOAD_URL}" | grep -q "HTTP/[.12]* [2].."; then
# run wget -q -O libevent.tar.gz "${LIBEVENT_DOWNLOAD_URL}"
# run tar -zxf libevent.tar.gz
# run cd libevent-*
# run ./configure --prefix=/usr/local/libevent
# run make
# run make install
# run cd "${BUILD_DIR}"
#fi
# Memcached source.
if [[ ${MEMCACHED_VERSION} == "latest" ]]; then
MEMCACHED_DOWNLOAD_URL="http://memcached.org/latest"
else
MEMCACHED_DOWNLOAD_URL="https://memcached.org/files/memcached-${MEMCACHED_VERSION}.tar.gz"
fi
if curl -sLI "${MEMCACHED_DOWNLOAD_URL}" | grep -q "HTTP/[.12]* [2].."; then
run wget -q -O memcached.tar.gz "${MEMCACHED_DOWNLOAD_URL}" && \
run tar -zxf memcached.tar.gz && \
run cd memcached-* && \
if [[ ${MEMCACHED_SASL} == "enable" || ${MEMCACHED_SASL} == true ]]; then
#run ./configure --enable-sasl --bindir=/usr/bin --with-libevent=/usr/local/libevent
run ./configure --enable-sasl --bindir=/usr/bin
else
#run ./configure --bindir=/usr/bin --with-libevent=/usr/local/libevent
run ./configure --bindir=/usr/bin
fi
run make && \
run make install
# Create memcache user.
# TODO: not realy used, due to LEMPer will run memcached as www-data for Nginx PageSpeed module.
if [[ -z $(getent passwd memcache) ]]; then
if "${DRYRUN}"; then
echo "Create memcache user in dryrun mode."
else
run groupadd -r memcache
run useradd -r -M -g memcache memcache
fi
fi
else
error "An error occured while downloading Memcached source."
fi
run cd "${CURRENT_DIR}"
;;
*)
# Skip installation.
error "Installer method not supported. Memcached installation skipped."
;;
esac
if [[ -n $(command -v memcached) ]]; then
echo "Configuring Memcached server..."
# Remove existing Memcached config.
[ -f /etc/memcached.conf ] && run mv /etc/memcached.conf /etc/memcached.conf~
# Copy multi user instance config.
run cp -fr etc/memcached/memcache.conf /etc/memcached_memcache.conf
run cp -fr etc/memcached/www-data.conf /etc/memcached_www-data.conf
# Memcached init script.
[ -f /etc/init.d/memcached ] && run mv /etc/init.d/memcached /etc/init.d/memcached~
run cp -f etc/init.d/memcached /etc/init.d/
run chmod ugo+x /etc/init.d/memcached
# Memcached systemd script (multi user instance).
[ -f /lib/systemd/system/memcached.service ] && \
run mv /lib/systemd/system/memcached.service /lib/systemd/system/memcached.service~
[ ! -f /lib/systemd/system/memcached@.service ] && \
run cp etc/systemd/memcached@.service /lib/systemd/system/
[ -f /etc/systemd/system/multi-user.target.wants/memcached@.service ] && \
run mv /etc/systemd/system/multi-user.target.wants/memcached@.service \
/etc/systemd/system/multi-user.target.wants/memcached@.service~
[ ! -f /etc/systemd/system/multi-user.target.wants/memcached@.service ] && \
run ln -s /lib/systemd/system/memcached@.service \
/etc/systemd/system/multi-user.target.wants/memcached@.service
# Custom memcached scripts.
if [ ! -f /usr/share/memcached/scripts/systemd-memcached-wrapper ]; then
run cp -fr share/memcached /usr/share/
run chmod ugo+x /usr/share/memcached/scripts/systemd-memcached-wrapper
run chmod ugo+x /usr/share/memcached/scripts/start-memcached
run chmod ugo+x /usr/share/memcached/scripts/memcached-tool
run chmod ugo+x /usr/share/memcached/scripts/damemtop
fi
# Try reloading daemon.
run systemctl daemon-reload
# Enable in start up.
run systemctl enable memcached@memcache.service
run systemctl enable memcached@www-data.service
# Enabled SASL auth?
if [[ ${MEMCACHED_SASL} == "enable" || ${MEMCACHED_SASL} == true ]]; then
echo "Memcached SASL auth option is enabled..."
if "${DRYRUN}"; then
info "Memcahed SASL-auth configured in dry run mode."
else
MEMCACHED_USERNAME=${MEMCACHED_USERNAME:-"lempermc"}
MEMCACHED_PASSWORD=${MEMCACHED_PASSWORD:-$(openssl rand -base64 64 | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)}
run mkdir -p /etc/sasl2 && run touch /etc/sasl2/memcached_memcache.conf
cat > /etc/sasl2/memcached_memcache.conf <<EOL
mech_list: plain
log_level: 5
sasldb_path: /etc/sasl2/memcached-sasldb2
EOL
# Add new sasl auth for memcached.
run saslpasswd2 -p -a memcached -f /etc/sasl2/memcached-sasldb2 -c "${MEMCACHED_USERNAME}" <<<"${MEMCACHED_PASSWORD}"
run chown memcache:memcache /etc/sasl2/memcached-sasldb2
run echo -e "\n# Enable SASL auth\n-S" >> /etc/memcached_memcache.conf
run sed -i "/#\ -vv/a -vv" /etc/memcached_memcache.conf
# Save config.
save_config -e "MEMCACHED_SASL=enabled\nMEMCACHED_USERNAME=${MEMCACHED_USERNAME}\nMEMCACHED_PASSWORD=${MEMCACHED_PASSWORD}\nMEMCACHED_INSTANCE=memcache"
# Save log.
save_log -e "Memcached SASL auth is enabled, below is your default auth credential.\nUsername: ${MEMCACHED_USERNAME}, password: ${MEMCACHED_PASSWORD}\nSave this credential and use it to authenticate your Memcached connection."
fi
fi
# Optimizing Memcached conf.
local RAM_SIZE && \
RAM_SIZE=$(get_ram_size)
if [[ ${RAM_SIZE} -le 2048 ]]; then
# If machine RAM less than / equal 2GiB, set Memcached to 1/16 of RAM size.
local MEMCACHED_SIZE=$((RAM_SIZE / 16))
elif [[ ${RAM_SIZE} -gt 2049 && ${RAM_SIZE} -le 8192 ]]; then
# If machine RAM less than / equal 8GiB and greater than 2GiB, set Memcached to 1/8 of RAM size.
local MEMCACHED_SIZE=$((RAM_SIZE / 8))
else
# Otherwise, set Memcached to max of 2GiB.
local MEMCACHED_SIZE=2048
fi
run sed -i "s/-m 64/-m ${MEMCACHED_SIZE}/g" /etc/memcached_memcache.conf
run sed -i "s/-m 64/-m ${MEMCACHED_SIZE}/g" /etc/memcached_www-data.conf
fi
# Installation status.
if "${DRYRUN}"; then
info "Memcached server installed in dryrun mode."
else
if [[ $(pgrep -c memcached) -gt 0 ]]; then
#run systemctl restart memcached@memcache
run /usr/share/memcached/scripts/start-memcached \
/etc/memcached_memcache.conf /var/run/memcached_memcache.pid
#run systemctl restart memcached@www-data
run /usr/share/memcached/scripts/start-memcached \
/etc/memcached_www-data.conf /var/run/memcached_www-data.pid
success "Memcached server restarted successfully."
elif [[ -n $(command -v memcached) ]]; then
#run systemctl start memcached@memcache
run /usr/share/memcached/scripts/start-memcached \
/etc/memcached_memcache.conf /var/run/memcached_memcache.pid
#run systemctl start memcached@www-data
run /usr/share/memcached/scripts/start-memcached \
/etc/memcached_www-data.conf /var/run/memcached_www-data.pid
if [[ $(pgrep -c memcached) -gt 0 ]]; then
success "Memcached server started successfully."
else
info "Something went wrong with Memcached installation."
fi
fi
fi
else
info "Memcached server installation skipped."
fi
}
# Install PHP Memcached extension.
function install_php_memcached() {
# Selected PHP version.
local SELECTED_PHP="${1}"
# Install PHP memcached module.
echo "Installing PHP ${SELECTED_PHP} memcached module..."
if hash apt 2>/dev/null; then
#PHPVERS=$(sed "s/,/ /g" <<<"${SELECTED_PHP}")
for PHPv in ${SELECTED_PHP//,/ }
do
install_dependencies "apt install -qq -y" debian_is_installed \
"php${PHPv}-igbinary" "php${PHPv}-memcache" "php${PHPv}-memcached" "php${PHPv}-msgpack"
enable_php_memcached "${PHPv}"
done
# Default PHP 7.4 for LEMPer.
if [ "${PHPv}" != "7.4" ]; then
install_dependencies "apt install -qq -y" debian_is_installed \
"php7.4-igbinary" "php7.4-memcache" "php7.4-memcached" "php7.4-msgpack"
enable_php_memcached "7.4"
fi
else
fail "Unable to install PHP Memcached, this GNU/Linux distribution is not supported."
fi
}
function enable_php_memcached() {
# PHP version.
local PHPv="${1}"
echo "Enabling PHP ${PHPv} memcached module..."
if "${DRYRUN}"; then
echo "PHP ${PHPv} Memcache module enabled in dryrun mode."
else
# Optimize PHP memcache module.
if [ -d "/etc/php/${PHPv}/mods-available/" ]; then
if [ -f "/etc/php/${PHPv}/mods-available/memcache.ini" ]; then
cat >> "/etc/php/${PHPv}/mods-available/memcache.ini" <<EOL
; Optimized for LEMPer stack.
memcache.dbpath="/var/lib/memcache"
memcache.maxreclevel=0
memcache.maxfiles=0
memcache.archivememlim=0
memcache.maxfilesize=0
memcache.maxratio=0
; Custom setting for WordPress + W3TC.
session.bak_handler="memcache"
session.bak_path="tcp://127.0.0.1:11211"
EOL
success "PHP ${PHPv} Memcache module enabled."
fi
# Reload PHP-FPM service.
echo "Restarting php${PHPv}-fpm to apply Memcached module."
if [[ $(pgrep -c "php-fpm${PHPv}") -gt 0 ]]; then
run systemctl reload "php${PHPv}-fpm"
success "php${PHPv}-fpm restarted successfully."
elif [[ -n $(command -v "php${PHPv}") ]]; then
run systemctl start "php${PHPv}-fpm"
if [[ $(pgrep -c "php-fpm${PHPv}") -gt 0 ]]; then
success "php${PHPv}-fpm started successfully."
else
info "Something went wrong with php${PHPv}-fpm installation."
fi
fi
else
info "It seems that PHP ${PHPv} not yet installed. Please install it before!"
fi
fi
}
function init_memcached_install() {
install_memcached "${MEMC_VERSION}" "${MEMC_INSTALLER}"
if [[ -z "${SELECTED_PHP}" ]]; then
SELECTED_PHP=${PHP_VERSION:-"7.4"}
elif [[ "${SELECTED_PHP}" == "all" ]]; then
SELECTED_PHP="5.6,7.0,7.1,7.2,7.3,7.4,8.0"
fi
install_php_memcached "${PHP_VERSION}"
}
echo "[Memcached Server Installation]"
# Start running things from a call at the end so if this script is executed
# after a partial download it doesn't do anything.
if [[ -n $(command -v memcached) ]]; then
info "Memcached server already exists, installation skipped..."
else
init_memcached_install "$@"
fi
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