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9
LICENSE
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9
LICENSE
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MIT License
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Copyright (c) <year> <copyright holders>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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34
README.md
34
README.md
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# Autonode
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Autonode is a bash script for setting up a new docker swarm, or a new node for your existing docker swarm. Autonode is tested on Ubuntu 22.10 and requires no additional packages to be installed prior to running.
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To have Autonode run using values provided by a config file such as autonode.conf, make the script executable, run it as root, and specify your config with '-init *config*':
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> sudo su
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> wget https://github.com/imthegm/autonode/archive/refs/heads/main.tar.gz
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> tar -xf main.tar.gz
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> cd autonode-main
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> chmod +x autonode.sh
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> ./autonode.sh -init autonode.conf
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To input values manually while Autonode runs, simply make the script executable and run it as root:
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> sudo su
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> wget https://github.com/imthegm/autonode/archive/refs/heads/main.tar.gz
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> tar -xf main.tar.gz
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> cd autonode-main
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> chmod +x autonode.sh
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> ./autonode.sh
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Project is mirrored from the Cliffhouse Games instance of https://gitea.io/
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For support, email kris@cliffhouse.games or join the Cliffhouse Games discord server at https://discord.cliffhouse.games
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Enjoy!
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35
autonode.conf
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35
autonode.conf
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##########
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# To initialize a new swarm, new_swarm=true and node_ip_address= the IPV4 address for this manager node to listen on.
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#######
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new_swarm=true
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node_ip_address="192.168.1.1"
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##########
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# To join an existing swarm, provide the swarm token here, including prefix and manager IP:port combination.
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########
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swarm_token="SWMTKN-################################################ 192.168.1.1:1111"
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##########
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# Add all other node IP addresses here to whitelist necessary ports incoming from all nodes in the swarm.
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########
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swarm_ip_addresses=(192.168.1.101 192.168.1.102)
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##########
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# Enable OpenSSH in the firewall. If not installed, install it.
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########
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enable_ssh=true
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##########
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# NFS settings.
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# !! Caution: Enabling nfs_docker_data will cause weird failures if you are using nfs_url:nfs_mount for multiple docker daemons !!
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# local_mount does not need to be a directory that exists, the directory will be created.
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#######
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nfs_setup=true
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nfs_url="192.168.1.10"
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nfs_mount="/share"
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local_mount="/dockershare"
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##########
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# Set file for logging. Defaults to install.log
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#######
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log_file="install.log"
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##########
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# Disable prompts for user input. If quiet_install is empty but an input file is provided, defaults to true.
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########
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quiet_install="false"
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252
autonode.sh
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252
autonode.sh
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#!/bin/bash
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####
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# Examine environment, define valid inputs, declare variables
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##
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if ! command -v docker &> /dev/null; then
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docker_installed=false
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else
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docker_installed=true
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fi
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if ! command -v ssh &> /dev/null; then
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openssh_installed=false
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else
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openssh_installed=true
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fi
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# IP validation working for IPV4
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ip_valid='^(0*(1?[0-9]{1,2}|2([0-4][0-9]|5[0-5]))\.){3}'
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ip_valid+='0*(1?[0-9]{1,2}|2([0-4][0-9]|5[0-5]))$'
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# Swarm token validation not working
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# swarm_token_valid='SWMTKN.*[A-Za-z0-9]+.*[A-Za-z0-9]+.*\b(?:(?:2(?:[0-4][0-9]|5[0-5])|[0-1]?[0-9]?[0-9])\.){3}(?:(?:2([0-4][0-9]|5[0-5])|[0-1]?[0-9]?[0-9]))\b.*[0-9]+'
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swarm_token_valid='^SWMTKN.{80}([0-9]{1,3}\.){3}([0-9]{1,3}):[0-9]{1,5}$'
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port_valid='[0-9]+'
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swarm_ip_addresses=()
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new_swarm=false
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nfs_setup=false
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enable_ssh=false
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nfsclient_installed=false
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remote_subdir=$(hostname)
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quiet_install=""
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####
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# Detect init file if given, verify that it exists, and set quiet_install to true or false
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##
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if [[ "$1" == "-init" ]]; then
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INPUT_FILE="$2"
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if ! [[ -f "$INPUT_FILE" ]]; then
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echo "Error: File not found: $INPUT_FILE"
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exit 1
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fi
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source "$INPUT_FILE"
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if [[ -z "$quit_install" ]]; then
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quiet_install=true
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fi
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if [[ -z "$log_file" ]]; then
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log_file=install.log
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fi
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exec &> >(tee -a "$log_file")
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else
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quiet_install=false
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exec &> >(tee -a "install.log")
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fi
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#
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####
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# Allow the user to customize the install if not running quiet install,
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##
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if [ "$quiet_install"=false ]; then
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while true; do
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read -p "Do you want to initiate a new Docker Swarm? (y/n) " new_swarm_opt
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if ([ $new_swarm_opt == "y" ] || [ $new_swarm_opt == "Y" ] || [ $new_swarm_opt == "n" ] || [ $new_swarm_opt == "N" ]); then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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if ([ $new_swarm_opt == "y" ] || [ $new_swarm_opt == "Y" ]); then
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new_swarm=true
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else
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new_swarm=false
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fi
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if [[ "$new_swarm" = true ]]; then
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while true; do
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read -p "Enter the IP address of this node: " node_ip_address
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if [[ $node_ip_address =~ $ip_valid ]]; then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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else
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read -p "Enter Docker Swarm token, including manager IP and port: " swarm_token
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# Swarm token input validation WIP
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# while true; do
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# read -p "Enter Docker Swarm token, including manager IP and port: " swarm_token
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# if [[ "$swarm_token" =~ "$swarm_token_valid" ]]; then
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# break
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# else
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# echo "Invalid input. Please try again."
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# fi
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# done
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fi
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while true; do
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read -p "Enter a docker swarm node IP address to whitelist in UFW (or press enter to continue): " swarm_ip_address
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if [[ $swarm_ip_address =~ $ip_valid ]]; then
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swarm_ip_addresses+=("$swarm_ip_address")
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elif [[ -z "$swarm_ip_address" ]]; then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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while true; do
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read -p "Would you like to install/enable OpenSSH on this host? (y/n) " enable_ssh_opt
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if ([ "$enable_ssh_opt" == "y" ] || [ "$enable_ssh_opt" == "Y" ] || [ "$enable_ssh_opt" == "n" ] || [ "$enable_ssh_opt" == "N" ]); then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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if ([ "$enable_ssh_opt" == "Y" ] || [ "$enable_ssh_opt" == "y" ]); then
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enable_ssh=true
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fi
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# NFS share setup only validates that input is not blank. Need to write input validation for this feature and generally improve input validation in the script.
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while true; do
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read -p "Would you like to setup an NFS share? (y/n) " nfs_setup_opt
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if ([ "$nfs_setup_opt" == "y" ] || [ "$nfs_setup_opt" == "Y" ] || [ "$nfs_setup_opt" == "n" ] || [ "$nfs_setup_opt" == "N" ]); then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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if ([ "$nfs_setup_opt" == "Y" ] || [ "$nfs_setup_opt" == "y" ]); then
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nfs_setup=true
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fi
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if [[ "$nfs_setup" = true ]]; then
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while true; do
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read -p "Please enter the IP or hostname of the NFS server: " nfs_url
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if [[ ! -z "$nfs_url" ]]; then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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while true; do
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read -p "Please enter the directory shared by the NFS server: ? " nfs_mount
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if [[ ! -z "$nfs_mount" ]]; then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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while true; do
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read -p "Please enter the local mount point for the NFS share: (This directory need not already exist) " local_mount
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if [[ ! -z "$local_mount" ]]; then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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fi
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while true; do
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read -p "Do you want to use a subdirectory of this share as the default location for docker containers? (y/n) " nfs_docker_data_opt
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if ([ "$nfs_docker_data_opt" == "y" ] || [ "$nfs_docker_data_opt" == "Y" ] || [ "$nfs_docker_data_opt" == "n" ] || [ "$nfs_docker_data_opt" == "N" ]); then
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break
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else
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echo "Invalid input. Please try again."
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fi
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done
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if ([ "$nfs_docker_data_opt" == "Y" ] || [ "$nfs_docker_data_opt" == "y" ]); then
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nfs_docker_data=true
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fi
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fi
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#Function to install docker
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install_docker() {
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apt-get update
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apt-get install ca-certificates curl gnupg -y
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mkdir -m 0755 -p /etc/apt/keyrings
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curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
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echo "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
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chmod a+r /etc/apt/keyrings/docker.gpg
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apt-get update
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apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y
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docker run hello-world
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if [[ "$quiet_install" = false ]]; then
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echo "Docker is installed, now configuring docker swarm."
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fi
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}
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# Function to add all nodes from swarm_ip_addresses to whitelist for docker ports
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whitelist_nodes() {
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for swarm_ip_address in "${swarm_ip_addresses[@]}"; do
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if [[ "$quiet_install" = false ]]; then
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echo "Whitelisting IP address in UFW: $ip_address"
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fi
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ufw allow from $swarm_ip_address to any port 2377 comment 'Docker Swarm'
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ufw allow from $swarm_ip_address to any port 4789 comment 'Docker Swarm'
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ufw allow from $swarm_ip_address to any port 7946 comment 'Docker Swarm'
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ufw reload
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done
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}
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# Function to install & enbable openssh
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allow_ssh() {
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if [[ "$openssh_installed" = false ]]; then
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apt-get update
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apt-get install openssh-server -y
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fi
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ufw allow OpenSSH
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ufw reload
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}
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# Funciton to initialize docker swarm
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init_swarm() {
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docker swarm init --advertise-addr $node_ip_address --listen-addr $node_ip_address
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join_token=$(docker swarm join-token -q worker)
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if [[ "$quiet_install" = false ]]; then
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echo "Swarm initiated!"
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fi
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}
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# Function to join swarm
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join_swarm() {
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if [[ "$quiet_install" = false ]]; then
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echo "Joining swarm with the following token: $swarm_token"
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fi
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docker swarm join --token $swarm_token
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}
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# Function to mount NFS share & set docker data directory
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mount_containdir() {
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if [[ "$nfsclient_installed" = false ]]; then
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apt-get update
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apt-get install nfs-common -y
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fi
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mkdir $local_mount
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echo "$nfs_url:$nfs_mount /$local_mount nfs default 0 0" | tee -a /etc/fstab
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systemctl daemon-reload
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mount -a
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if [[ "$nfs_docker_data" = true ]]; then
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touch /etc/docker/daemon.json
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echo "{
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"data-root": "$local_mount/$remote_subdir"
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}" | tee -a /etc/docker/daemon.json
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systemctl stop docker
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systemctl start docker
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fi
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}
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####
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# Execute functions based on selected parameters.
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##
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if [[ "$docker_installed" = false ]]; then
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install_docker
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fi
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if [[ "$enable_ssh" = true ]]; then
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allow_ssh
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fi
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whitelist_nodes
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if [[ "$nfs_setup" = true ]]; then
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mount_containdir
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fi
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if [[ "$new_swarm" = true ]]; then
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init_swarm
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else
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join_swarm
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fi
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read -p "Installation complete. Press any button to close."
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