117 lines
3.3 KiB
Bash
Executable File
117 lines
3.3 KiB
Bash
Executable File
#!/bin/sh
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# CONTEXT: GUEST during CONSTRUCTION as ROOT
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# PURPOSE: Install controller base required packages
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set -ex
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export DEBIAN_FRONTEND=noninteractive
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cat > "/etc/sysctl.d/10-redis-performance.conf" << _EOF_
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# See 'http://redis.io/topics/admin' for best practices.
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# Make sure to set the Linux kernel overcommit memory setting to 1.
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vm.overcommit_memory=1
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# Linux kernel will silently truncate 'tcp-backlog' to the value of
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# '/proc/sys/net/core/somaxconn' so make sure to raise both the value of
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# 'somaxconn' and 'tcp_max_syn_backlog' in order to get the desired effect.
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net.ipv4.tcp_max_syn_backlog=1024
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net.core.somaxconn=1024
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_EOF_
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cat > "/etc/rc.local" << _EOF_
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#!/bin/bash
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# Make sure to disable Linux kernel feature transparent huge pages,
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# it will affect greatly both memory usage and latency in a negative way.
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if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
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echo never > /sys/kernel/mm/transparent_hugepage/defrag
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fi
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if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
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echo never > /sys/kernel/mm/transparent_hugepage/enabled
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fi
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_EOF_
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# Install Redis from scratch
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ARCH_SAV=$ARCH
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unset ARCH
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apt-get update
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apt-get --allow-unauthenticated install -y build-essential tcl curl
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cd /tmp
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REDIS_VERSION=3.2.6
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REDIS_NAME=redis-$REDIS_VERSION
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REDIS_ARCHIVE=$REDIS_NAME.tar.gz
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curl -O http://download.redis.io/releases/$REDIS_ARCHIVE
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tar xzvf $REDIS_ARCHIVE
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cd $REDIS_NAME
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make distclean
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make
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make install
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export ARCH=$ARCH_SAV
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adduser --system --group --no-create-home redis
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# Create the data dir
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REDIS_DATA_DIR=/var/lib/redis
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REDIS_LOG_DIR=/var/log/redis
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REDIS_LOG=$REDIS_LOG_DIR/redis.log
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REDIS_RUN_DIR=/var/run/redis
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REDIS_PID=$REDIS_RUN_DIR/redis-server.pid
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mkdir -p $REDIS_DATA_DIR
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chown redis:redis $REDIS_DATA_DIR
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chmod 770 $REDIS_DATA_DIR
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mkdir -p $REDIS_LOG_DIR
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chown redis:redis $REDIS_LOG_DIR
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chmod 775 $REDIS_LOG_DIR
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mkdir -p $REDIS_RUN_DIR
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chown redis:redis $REDIS_RUN_DIR
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# Set up a proper conf file to start
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REDIS_CONF_NAME=redis.conf
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REDIS_CONF_DIR=/etc/redis
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REDIS_CONF=$REDIS_CONF_DIR/$REDIS_CONF_NAME
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mkdir $REDIS_CONF_DIR
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cp /tmp/$REDIS_NAME/$REDIS_CONF_NAME $REDIS_CONF_DIR
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chown redis:redis $REDIS_CONF
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sed -i "s#dir .*#dir $REDIS_DATA_DIR#" $REDIS_CONF
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sed -i "s#pidfile .*#pidfile $REDIS_PID#" $REDIS_CONF
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sed -i "s#logfile .*#logfile $REDIS_LOG#" $REDIS_CONF
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sed -i "s/supervised no/supervised systemd/" $REDIS_CONF
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sed -i "s/daemonize no/daemonize yes/" $REDIS_CONF
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sed -i "s/protected-mode yes/protected-mode no/" $REDIS_CONF
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cat > "/etc/systemd/system/redis-server.service" << _EOF_
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[Unit]
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Description=Redis In-Memory Data Store
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After=network.target
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[Service]
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Type=forking
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PIDFile=$REDIS_PID
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User=redis
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Group=redis
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Environment=statedir=$REDIS_RUN_DIR
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PermissionsStartOnly=true
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ExecStartPre=/bin/mkdir -p \${statedir}
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ExecStartPre=/bin/chown -R redis:redis \${statedir}
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ExecStart=/usr/local/bin/redis-server $REDIS_CONF
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ExecReload=/bin/kill -USR2 \$MAINPID
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ExecStop=/usr/local/bin/redis-cli shutdown
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Restart=always
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[Install]
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WantedBy=multi-user.target
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_EOF_
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cat > "/etc/default/redis-server" << _EOF_
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# Call ulimit -n with this argument prior to invoking Redis itself.
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# This may be required for high-concurrency environments. Redis itself cannot
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# alter its limits as it is not being run as root.
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ULIMIT=65536
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_EOF_
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# Install Python driver for Redis ('redis-py').
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pip3 install redis
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