feat: add sysyadm initialization script
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README.md
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README.md
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# sysfiles
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# JILITS System Files Repository
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YADM repo for system level files
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This repository contains system configuration files managed by `yadm` for simplified deployment and bootstrap of system files.
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## System Initialization Instructions
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To set up the repository on a fresh system, use the provided one-liner below to download and execute the initialization script.The script initializes, clones, and configures `yadm` for system-wide usage.
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```bash
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curl -fsSL https://git.jilits.se/JILITS/sysfiles/raw/branch/main/usr/local/jilits/sysyadm-init.sh | bash
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```
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### Initialization Prerequisites
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- **System Requirements**: A Debian-based system (Ubuntu, Debian, etc.).
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- **Git Access**: Ensure you can add the SSH key to the Git server (`git.jilits.se`).
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### Generated SSH Key
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The script generates an SSH key for the root user if it does not already exist. The public key will be printed during execution. Make sure to add the SSH key to the Git server to allow cloning.
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## Troubleshooting
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If the script fails:
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1. Ensure you are not running the script as the root user.
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2. Verify internet connectivity and access to the Git repository.
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3. Check that you have permissions to install packages using `sudo`.
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106
usr/local/jilits/sysyadm-init.sh
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106
usr/local/jilits/sysyadm-init.sh
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#!/bin/bash
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# Exit immediately if a command exits with a non-zero status
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set -e
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# Google Bash Script Guidelines: All static variables are defined at the top and marked readonly.
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readonly REPO_URL="ssh://git@git.jilits.se:2222/JILITS/sysfiles.git"
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readonly YADM_DIR="/etc/yadm"
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readonly YADM_DATA_DIR="$YADM_DIR/data"
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readonly YADM_REPO_PATH="$YADM_DATA_DIR/repo.git"
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readonly ROOT_SSH_KEY="/root/.ssh/id_rsa"
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readonly ALIASES_FILE="$HOME/.bash_aliases"
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readonly -A ALIASES=(
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["y"]="yadm"
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["sysyadm"]="sudo yadm --yadm-dir '$YADM_DIR' --yadm-data '$YADM_DATA_DIR'"
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["s"]="sysyadm"
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)
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# Function to print messages
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function iprint() {
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echo -e "\e[32m[INFO]\e[0m $1"
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}
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function eprint() {
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echo -e "\e[31m[ERROR]\e[0m $1" >&2
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}
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# Function to run sysyadm commands
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function sysyadm() {
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sudo yadm --yadm-dir "$YADM_DIR" --yadm-data "$YADM_DATA_DIR" "$@"
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}
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if [ "$EUID" -eq 0 ]; then
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eprint "This script must be run as a non-root user. Exiting."
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exit 1
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fi
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if ! command -v apt &>/dev/null; then
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eprint "This script is intended for Debian-based systems. Exiting."
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exit 1
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fi
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iprint "System is Debian-compatible. Proceeding..."
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if ! command -v yadm &>/dev/null; then
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iprint "Installing yadm..."
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sudo apt update && sudo apt install -y yadm
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else
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iprint "yadm is already installed."
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fi
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iprint "Ensuring aliases are in $ALIASES_FILE..."
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for alias_name in "${!ALIASES[@]}"; do
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alias_cmd="alias $alias_name=\"${ALIASES[$alias_name]}\""
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grep -qxF "$alias_cmd" "$ALIASES_FILE" || echo "$alias_cmd" >>"$ALIASES_FILE"
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done
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iprint "Aliases added. Reloading bash aliases."
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# shellcheck disable=SC1090
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source "$ALIASES_FILE"
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if sudo test -f "$ROOT_SSH_KEY"; then
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iprint "SSH key for root already exists. Skipping key generation."
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else
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iprint "Generating SSH key for root..."
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sudo ssh-keygen -t rsa -N "" -f "$ROOT_SSH_KEY"
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fi
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iprint "Printing the public SSH key for root:"
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sudo cat "$ROOT_SSH_KEY.pub"
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while true; do
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read -p "Has the SSH key been added to the Git server? (y/n): " CONFIRM
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case $CONFIRM in
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[Yy])
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break
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;;
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[Nn])
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iprint "Please add the key to the Git server and confirm when done."
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;;
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*)
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iprint "Please answer y or n."
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;;
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esac
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done
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iprint "Using repository URL: $REPO_URL"
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if [ -d "$YADM_REPO_PATH" ]; then
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iprint "Yadm repository already exists at $YADM_REPO_PATH. Skipping initialization and clone."
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else
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iprint "Initializing sysyadm with root privileges..."
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sysyadm init -w /
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iprint "Cloning sysyadm repository..."
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sysyadm clone -w / "$REPO_URL"
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fi
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iprint "Running sysyadm alts..."
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sysyadm alts
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iprint "Running sysyadm bootstrap..."
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sysyadm bootstrap
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iprint "Script completed successfully."
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