Add script to configure debian-based systems (servers & dev machines)

scripts/install-debian.sh

@@ -0,0 +1,161 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+# Debian stable OS
+apt-get update
+apt-get -y upgrade
+apt-get -y dist-upgrade
+
+# Disable OpenStack SSH malware
+mv /home/debian/.ssh/authorized_keys /root/.ssh/authorized_keys ||:
+sed -i '/Generated-by-Nova/d' /root/.ssh/authorized_keys ||:
+chown root:root /root/.ssh/authorized_keys ||:
+
+# Terminal goodies
+touch .hushlogin
+
+cat <<'EOF'>> /root/.bashrc
+export LS_OPTIONS="--color=auto"
+eval "`dircolors`"
+
+alias ctop="docker run --rm -it --name=ctop -v /var/run/docker.sock:/var/run/docker.sock:ro quay.io/vektorlab/ctop"
+alias df="df --si"
+alias du="du -cs --si"
+alias free="free -h --si"
+alias l="ls $LS_OPTIONS -al --si --group-directories-first"
+alias less="less -i"
+alias nano="nano -clDOST4"
+alias pstree="pstree -palU"
+alias gobuild='CGO_ENABLED=0 GOARCH=amd64 go build -trimpath -ldflags="-s -w"'
+
+export HISTFILESIZE=
+export HISTSIZE=
+export HISTTIMEFORMAT="%F %T "
+
+GOPATH=$HOME/go
+HISTCONTROL=ignoreboth
+HISTFILESIZE=
+HISTSIZE=
+HISTTIMEFORMAT="%F %T "
+EOF
+
+cat <<EOF>> /etc/inputrc
+set completion-ignore-case
+set show-all-if-ambiguous On
+set show-all-if-unmodified On
+EOF
+
+cat <<EOF>> /etc/bash.bashrc
+if ! shopt -oq posix; then
+  if [ -f /usr/share/bash-completion/bash_completion ]; then
+    . /usr/share/bash-completion/bash_completion
+  elif [ -f /etc/bash_completion ]; then
+    . /etc/bash_completion
+  fi
+fi
+EOF
+
+# Basic packages
+apt-get -y install man bash-completion git ufw jq curl build-essential netcat wget psmisc lz4 file net-tools brotli unzip zip moreutils xauth sysfsutils rsync iperf pv tree mc screen
+
+# Configure screen
+cat <<'EOF'>> /etc/screenrc
+startup_message off
+shell -$SHELL
+defscrollback 100000
+bind l eval clear "scrollback 0" "scrollback 100000"
+EOF
+
+# Configure SSH
+cat <<EOF>> /etc/ssh/sshd_config
+Port 521
+PasswordAuthentication no
+AllowUsers root
+X11UseLocalhost no
+EOF
+service ssh restart
+
+touch /root/.Xauthority
+
+# Firewall
+ufw allow in 80/tcp
+ufw allow in 443/tcp
+ufw allow in 521/tcp
+ufw logging off
+ufw --force enable
+ufw --force delete 4
+ufw --force delete 4
+ufw --force delete 4
+
+# Optimize
+systemctl disable unattended-upgrades.service apt-daily.timer apt-daily-upgrade.timer console-setup.service keyboard-setup.service remote-fs.target man-db.timer systemd-timesyncd.service
+apt-get -y purge apparmor
+sed -i 's/MODULES=most/MODULES=dep/g' /etc/initramfs-tools/initramfs.conf
+sed -i 's/COMPRESS=gzip/COMPRESS=lz4/g' /etc/initramfs-tools/initramfs.conf
+update-initramfs -u
+echo 'GRUB_TIMEOUT=0' >> /etc/default/grub
+update-grub
+apt-get -y purge exim\*
+
+for i in $(seq 0 $(nproc --ignore 1)); do
+  echo "devices/system/cpu/cpu${i}/cpufreq/scaling_governor = performance" >> /etc/sysfs.conf
+done
+
+# Disable sleep when closing laptop screen
+echo HandleLidSwitch=ignore >> /etc/systemd/logind.conf
+
+# noatime
+sed -i 's| / ext4 | / ext4 noatime,|g' /etc/fstab
+
+# Disable swap
+swapoff -a
+sed -i '/swap/d' /etc/fstab
+
+# node.JS & yarn
+curl -sL https://deb.nodesource.com/setup_12.x | bash -
+apt-get -y install nodejs
+curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
+echo "deb https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list
+apt-get update
+apt-get -y install yarn
+
+# Docker
+apt-get -y install apt-transport-https ca-certificates curl gnupg2 software-properties-common
+curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -
+add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
+apt-get update
+apt-get -y install docker-ce docker-ce-cli containerd.io
+
+# ripgrep
+curl -LO https://github.com/BurntSushi/ripgrep/releases/download/11.0.2/ripgrep_11.0.2_amd64.deb
+dpkg -i ripgrep_11.0.2_amd64.deb
+rm ripgrep_11.0.2_amd64.deb
+
+# Go
+wget https://dl.google.com/go/go1.14.linux-amd64.tar.gz
+tar -C /usr/local -xzf go1.14.linux-amd64.tar.gz
+rm go1.14.linux-amd64.tar.gz
+echo 'export PATH=$PATH:/usr/local/go/bin' >> /etc/profile
+
+# Netdata
+# bash <(curl -Ss https://my-netdata.io/kickstart-static64.sh) --no-updates --stable-channel --disable-telemetry
+
+# Caddy
+curl https://getcaddy.com | bash -s personal http.ipfilter
+
+# Generate SSH key
+ssh-keygen -ted25519 -f ~/.ssh/id_ed25519 -N ''
+
+# Cleanup
+sed -i '/^deb-src/d' /etc/apt/sources.list
+apt-get update
+apt-get -y purge unattended-upgrades
+apt-get -y autoremove --purge
+apt-get clean
+
+# The end
+reboot