|
| 1 | +#!/bin/bash |
| 2 | +printf """ |
| 3 | +----------------------------------- |
| 4 | +▶️ Running User/Group setup script |
| 5 | +----------------------------------- |
| 6 | +
|
| 7 | +""" |
| 8 | + |
| 9 | +# --- USAGE --- |
| 10 | +usage() { |
| 11 | + echo "Usage: $0 [OPTIONS]" |
| 12 | + echo "" |
| 13 | + echo "Options:" |
| 14 | + echo " --ssh-public-key ssh public key to add to the user" |
| 15 | + echo " -h, --help Show this help message" |
| 16 | + echo "" |
| 17 | + exit 1 |
| 18 | +} |
| 19 | + |
| 20 | +set -e |
| 21 | + |
| 22 | +GROUP_ID=1000 |
| 23 | +GROUP_NAME="application" |
| 24 | +USER_ID=1000 |
| 25 | +USER_NAME="provision" |
| 26 | + |
| 27 | +log() { |
| 28 | + echo -e "\n$1\n" |
| 29 | +} |
| 30 | + |
| 31 | +while [[ $# -gt 0 ]]; do |
| 32 | + case "$1" in |
| 33 | + --ssh-public-key) SSH_PUBLIC_KEY="$2"; shift 2 ;; |
| 34 | + -h|--help) usage ;; |
| 35 | + *) echo "Unknown option: $1"; usage ;; |
| 36 | + esac |
| 37 | +done |
| 38 | + |
| 39 | +# --- Group checks and creation --- |
| 40 | +group_info=$(getent group "$GROUP_ID") |
| 41 | +group_by_name=$(getent group "$GROUP_NAME") |
| 42 | + |
| 43 | +if [[ -n "$group_info" ]]; then |
| 44 | + actual_group=$(echo "$group_info" | cut -d: -f1) |
| 45 | + if [[ "$actual_group" == "$GROUP_NAME" ]]; then |
| 46 | + log "✅ Group with GID $GROUP_ID and name $GROUP_NAME exists." |
| 47 | + else |
| 48 | + log "❌ FAIL: GID $GROUP_ID exists as group '$actual_group', not '$GROUP_NAME'." |
| 49 | + exit 1 |
| 50 | + fi |
| 51 | +elif [[ -n "$group_by_name" ]]; then |
| 52 | + log "❌ FAIL: Group name '$GROUP_NAME' exists, but with different GID." |
| 53 | + exit 1 |
| 54 | +else |
| 55 | + log "🚀 Creating group: $GROUP_NAME with GID: $GROUP_ID" |
| 56 | + sudo groupadd -g $GROUP_ID $GROUP_NAME |
| 57 | +fi |
| 58 | + |
| 59 | +# --- User checks and creation --- |
| 60 | +user_info=$(getent passwd "$USER_ID") |
| 61 | +user_by_name=$(getent passwd "$USER_NAME") |
| 62 | + |
| 63 | +if [[ -n "$user_info" ]]; then |
| 64 | + actual_user=$(echo "$user_info" | cut -d: -f1) |
| 65 | + if [[ "$actual_user" == "$USER_NAME" ]]; then |
| 66 | + log "✅ User with UID $USER_ID and name $USER_NAME exists." |
| 67 | + else |
| 68 | + log "❌ FAIL: UID $USER_ID exists as user '$actual_user', not '$USER_NAME'." |
| 69 | + exit 1 |
| 70 | + fi |
| 71 | +elif [[ -n "$user_by_name" ]]; then |
| 72 | + log "❌ FAIL: User name '$USER_NAME' exists, but with different UID." |
| 73 | + exit 1 |
| 74 | +else |
| 75 | + log "🚀 Creating user: $USER_NAME with UID: $USER_ID and group: $GROUP_NAME" |
| 76 | + sudo useradd -u $USER_ID -g $GROUP_NAME $USER_NAME |
| 77 | +fi |
| 78 | + |
| 79 | +# --- Sudo access checks and grant --- |
| 80 | +# Check in /etc/sudoers and /etc/sudoers.d/ |
| 81 | +sudo_access=$(sudo grep -E '^provision\s+ALL=\(ALL(:ALL)?\)\s+ALL' /etc/sudoers 2>/dev/null || true) |
| 82 | +if [[ -z "$sudo_access" ]]; then |
| 83 | + sudo_access=$(sudo grep -E '^provision\s+ALL=\(ALL(:ALL)?\)\s+ALL' /etc/sudoers.d/* 2>/dev/null || true) |
| 84 | +fi |
| 85 | + |
| 86 | +if [[ -n "$sudo_access" ]]; then |
| 87 | + log "✅ User '$USER_NAME' already has full sudo access." |
| 88 | +else |
| 89 | + log "🚀 Granting full sudo access to user '$USER_NAME'..." |
| 90 | + log "${USER_NAME} ALL=(ALL:ALL) ALL" | sudo tee /etc/sudoers.d/$USER_NAME > /dev/null |
| 91 | + sudo chmod 0440 /etc/sudoers.d/$USER_NAME |
| 92 | +fi |
| 93 | + |
| 94 | +if [[ -f /home/$USER_NAME/.ssh/id_ed25519 ]]; then |
| 95 | + log "✅ SSH key pair for user '$USER_NAME' already exists." |
| 96 | +else |
| 97 | + sudo -u $USER_NAME mkdir -p /home/$USER_NAME/.ssh |
| 98 | + sudo chmod 700 /home/$USER_NAME/.ssh |
| 99 | + if [[ -n "$SSH_PUBLIC_KEY" ]]; then |
| 100 | + log "🚀 Adding provided SSH public key to user '$USER_NAME'..." |
| 101 | + echo "$SSH_PUBLIC_KEY" | sudo -u $USER_NAME tee -a /home/$USER_NAME/.ssh/authorized_keys > /dev/null |
| 102 | + sudo chmod 600 /home/$USER_NAME/.ssh/authorized_keys |
| 103 | + else |
| 104 | + log "🚀 Generating SSH key pair for user '$USER_NAME'..." |
| 105 | + sudo -u $USER_NAME mkdir -p /home/$USER_NAME/.ssh |
| 106 | + sudo -u $USER_NAME ssh-keygen -t ed25519 -f /home/$USER_NAME/.ssh/id_ed25519 -N "" -C "${USER_NAME}@$(hostname)" |
| 107 | + fi |
| 108 | +fi |
| 109 | +log "⚙️ $USER_NAME SSH key pair public key (add on worker nodes if needed):" |
| 110 | +sudo cat /home/$USER_NAME/.ssh/id_ed25519.pub |
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