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#!/bin/bash
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# Salt default Master/Minion preconfiguration script for a single computer
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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 18.04 LTS or variants
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# Use alternative Saltstack official repository, not the one provided by default Ubuntu repositories?
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# Usually Saltstack repository provides a newer Salt master/minion versions
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#
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# NOTE:Please make sure that Salt master & minion versions correspond each other!
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#
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USE_SALTREPO="true"
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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 installation (recommended)? [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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Ubuntu*)
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pkgmgr_cmd() {
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if [[ -v UPDATES ]]; then
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# Update Salt to the latest version - 2018.3
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# Yes, we use 16.04 until 18.04 will officially be available
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if [[ $USE_SALTREPO == "true" ]]; then
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wget -O - https://repo.saltstack.com/py3/ubuntu/16.04/amd64/latest/SALTSTACK-GPG-KEY.pub | apt-key add -
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echo "deb http://repo.saltstack.com/py3/ubuntu/16.04/amd64/latest xenial main" > /etc/apt/sources.list.d/saltstack.list
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elif [[ $USE_ALTREPO != "true" ]] && [[ -f /etc/apt/sources.list.d/saltstack.list ]]; then
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rm /etc/apt/sources.list.d/saltstack.list
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fi
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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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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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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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