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#!/bin/bash
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# Salt Master/Minion preconfiguration script
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# Copyright (C) 2018 Pekka Helenius
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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###########################################################
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# This script sets up default environment for basic Salt Master & Minion configuration
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# for one computer
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# Supported distributions: Ubuntu
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###########################################################
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# Check for command dependencies
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function checkCommands() {
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if [[ $(which --help 2>/dev/null) ]] && [[ $(echo --help 2>/dev/null) ]]; then
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COMMANDS=(grep mkdir systemctl id wget cat tee awk sed chmod)
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a=0
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for command in ${COMMANDS[@]}; do
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if [[ ! $(which $command 2>/dev/null) ]]; then
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COMMANDS_NOTFOUND[$a]=$command
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let a++
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fi
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done
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if [[ -v COMMANDS_NOTFOUND ]]; then
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echo -e "\n${bash_red}Error:${bash_color_default} The following commands could not be found: ${COMMANDS_NOTFOUND[*]}\nAborting\n"
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exit 1
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fi
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else
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exit 1
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fi
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}
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checkCommands
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###########################################################
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# Check root
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function checkRoot() {
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if [ $(id -u) -ne 0 ]; then
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echo "Run the script with root permissions (sudo or root)."
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exit 1
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fi
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}
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checkRoot
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###########################################################
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# Check network connection
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function checkInternet() {
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if [[ $(echo $(wget --delete-after -q -T 5 github.com -o -)$?) -ne 0 ]]; then
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echo -e "\nInternet connection failed (GitHub). Please check your connection and try again.\n"
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exit 1
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fi
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}
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checkInternet
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###########################################################
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# Welcome message
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function welcomeMessage() {
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read -r -p "This script will install Salt Master/Minion test environment. Continue? [y/N] " answer
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if [[ ! $(echo $answer | sed 's/ //g') =~ ^([yY][eE][sS]|[yY])$ ]]; then
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echo -e "Aborting.\n"
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exit 1
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fi
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unset answer
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}
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welcomeMessage
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###########################################################
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# Run package database updates?
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function packageUpdateQ() {
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read -r -p "Refresh package databases before Salt installation? [y/N] " answer
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if [[ $(echo $answer | sed 's/ //g') =~ ^([yY][eE][sS]|[yY])$ ]]; then
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UPDATES=""
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fi
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unset answer
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}
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packageUpdateQ
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###########################################################
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if [[ -f /etc/os-release ]]; then
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DISTRO=$(grep ^PRETTY_NAME /etc/os-release | grep -oP '(?<=")[^\s]*')
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function installPackages() {
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case "${DISTRO}" in
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#Arch*)
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# pkgmgr_cmd() {
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# if [[ -z UPDATES ]]; then
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# pacman -Suy && pacman -Fy
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# fi
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# pacman -S $1
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# }
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# PKGS=(salt openssh vagrant virtualbox)
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# ;;
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Ubuntu*)
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pkgmgr_cmd() {
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if [[ -v UPDATES ]]; then
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apt-get update
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fi
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apt-get -y install $1
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}
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PKGS=(salt-master salt-minion)
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;;
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default)
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echo -e "Can't recognize your Linux distribution. Aborting.\n"
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exit 1
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esac
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pkgmgr_cmd "${PKGS[*]}"
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systemctl enable salt-master.service &> /dev/null
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systemctl restart salt-master.service &> /dev/null
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}
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installPackages
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unset UPDATES
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else
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echo -e "Can't recognize your Linux distribution. Aborting.\n"
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exit 1
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fi
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###########################################################
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function saltEnvironment() {
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if [[ ! -d /srv/salt/apache/{data,scripts} ]]; then
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mkdir -p /srv/salt/apache/{data,scripts}
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fi
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function defaultMinionConf() {
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MINION_NAME="defaultMinion"
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if [[ -d /etc/salt ]]; then
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echo -e "\nWriting default Salt minion configuration '${MINION_NAME}' to /etc/salt/minion\n"
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echo -e "master: localhost\nid: ${MINION_NAME}" > /etc/salt/minion
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systemctl enable salt-minion.service &> /dev/null
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systemctl restart salt-minion.service &> /dev/null
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salt-key -y -a ${MINION_NAME} > /dev/null
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# Adding this sleep timer may reduce chance to failed connection tests in some cases
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sleep 5
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echo -e "Testing default Salt minion connection with the Salt master\n"
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if [[ $(echo $(salt "${MINION_NAME}" test.ping &> /dev/null)$?) -ne 0 ]]; then
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echo -e "Salt master can't connect to the default Salt minion. Aborting.\n"
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exit 1
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else
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echo -e "Connection OK!\n"
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fi
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else
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echo -e "Missing Salt configuration directory /etc/salt. Aborting.\n"
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exit 1
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fi
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}
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defaultMinionConf
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}
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if [ $? -eq 0 ]; then
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saltEnvironment
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else
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echo -e "Unknown error. Aborting.\n"
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exit 1
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fi
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###########################################################
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function getFiles() {
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echo -e "Downloading additional files\n"
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wget -q https://raw.githubusercontent.com/Fincer/salt_testrun/master/scripts/salt_pillar_apache_sample.sh \
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-O /srv/salt/apache/scripts/salt_pillar_apache_sample.sh
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wget -q https://raw.githubusercontent.com/Fincer/salt_testrun/master/data/sampleindex.html \
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-O /srv/salt/apache/data/sampleindex.html
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wget -q https://raw.githubusercontent.com/Fincer/salt_testrun/master/data/sampleindex_functions.js \
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-O /srv/salt/apache/data/sampleindex_functions.js
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chmod -R u+rw,go+r /srv/salt/apache
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}
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getFiles
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cd /srv/salt/apache/scripts
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bash ./salt_pillar_apache_sample.sh
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sudo -u \#1000 xdg-open $(echo "http://${DISTRO}.${MINION_NAME}.com" | awk '{print tolower($0)}') &
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