2b9851ba38
Disables 'unbound variable' errors at the start of the script to prevent issues with unset variables, and restores the previous shell options at the end. This ensures compatibility and avoids unexpected script failures.
515 lines
19 KiB
Bash
515 lines
19 KiB
Bash
#!/usr/bin/env bash
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# Copyright (c) 2021-2025 community-scripts ORG
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# Author: community-scripts ORG
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# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/branch/main/LICENSE
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# Revision: 1
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# ==============================================================================
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# CLOUD-INIT.FUNC - VM CLOUD-INIT CONFIGURATION LIBRARY
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# ==============================================================================
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#
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# Universal helper library for Cloud-Init configuration in Proxmox VMs.
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# Provides functions for:
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#
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# - Native Proxmox Cloud-Init setup (user, password, network, SSH keys)
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# - Interactive configuration dialogs (whiptail)
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# - IP address retrieval via qemu-guest-agent
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# - Cloud-Init status monitoring and waiting
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#
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# Usage:
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# source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/cloud-init.func)
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# setup_cloud_init "$VMID" "$STORAGE" "$HN" "yes"
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#
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# Compatible with: Debian, Ubuntu, and all Cloud-Init enabled distributions
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# ==============================================================================
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# ==============================================================================
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# SECTION 1: CONFIGURATION DEFAULTS
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# ==============================================================================
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# These can be overridden before sourcing this library
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# Disable 'unbound variable' errors for this library (restored at end)
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_OLD_SET_STATE=$(set +o | grep -E 'set -(e|u|o)')
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set +u
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CLOUDINIT_DEFAULT_USER="${CLOUDINIT_DEFAULT_USER:-root}"
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CLOUDINIT_DNS_SERVERS="${CLOUDINIT_DNS_SERVERS:-1.1.1.1 8.8.8.8}"
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CLOUDINIT_SEARCH_DOMAIN="${CLOUDINIT_SEARCH_DOMAIN:-local}"
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CLOUDINIT_SSH_KEYS="${CLOUDINIT_SSH_KEYS:-/root/.ssh/authorized_keys}"
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# ==============================================================================
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# SECTION 2: HELPER FUNCTIONS
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# ==============================================================================
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# ------------------------------------------------------------------------------
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# _ci_msg - Internal message helper with fallback
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# ------------------------------------------------------------------------------
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function _ci_msg_info() { msg_info "$1" 2>/dev/null || echo "[INFO] $1"; }
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function _ci_msg_ok() { msg_ok "$1" 2>/dev/null || echo "[OK] $1"; }
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function _ci_msg_warn() { msg_warn "$1" 2>/dev/null || echo "[WARN] $1"; }
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function _ci_msg_error() { msg_error "$1" 2>/dev/null || echo "[ERROR] $1"; }
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# ------------------------------------------------------------------------------
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# validate_ip_cidr - Validate IP address in CIDR format
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# Usage: validate_ip_cidr "192.168.1.100/24" && echo "Valid"
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# Returns: 0 if valid, 1 if invalid
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# ------------------------------------------------------------------------------
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function validate_ip_cidr() {
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local ip_cidr="$1"
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# Match: 0-255.0-255.0-255.0-255/0-32
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if [[ "$ip_cidr" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}/([0-9]|[1-2][0-9]|3[0-2])$ ]]; then
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# Validate each octet is 0-255
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local ip="${ip_cidr%/*}"
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IFS='.' read -ra octets <<<"$ip"
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for octet in "${octets[@]}"; do
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((octet > 255)) && return 1
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done
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return 0
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fi
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return 1
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}
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# ------------------------------------------------------------------------------
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# validate_ip - Validate plain IP address (no CIDR)
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# Usage: validate_ip "192.168.1.1" && echo "Valid"
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# ------------------------------------------------------------------------------
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function validate_ip() {
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local ip="$1"
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if [[ "$ip" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then
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IFS='.' read -ra octets <<<"$ip"
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for octet in "${octets[@]}"; do
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((octet > 255)) && return 1
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done
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return 0
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fi
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return 1
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}
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# ==============================================================================
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# SECTION 3: MAIN CLOUD-INIT FUNCTIONS
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# ==============================================================================
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# ------------------------------------------------------------------------------
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# setup_cloud_init - Configures Proxmox Native Cloud-Init
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# ------------------------------------------------------------------------------
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# Parameters:
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# $1 - VMID (required)
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# $2 - Storage name (required)
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# $3 - Hostname (optional, default: vm-<vmid>)
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# $4 - Enable Cloud-Init (yes/no, default: no)
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# $5 - User (optional, default: root)
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# $6 - Network mode (dhcp/static, default: dhcp)
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# $7 - Static IP (optional, format: 192.168.1.100/24)
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# $8 - Gateway (optional)
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# $9 - Nameservers (optional, default: 1.1.1.1 8.8.8.8)
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#
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# Returns: 0 on success, 1 on failure
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# Exports: CLOUDINIT_USER, CLOUDINIT_PASSWORD, CLOUDINIT_CRED_FILE
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# ==============================================================================
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function setup_cloud_init() {
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local vmid="$1"
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local storage="$2"
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local hostname="${3:-vm-${vmid}}"
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local enable="${4:-no}"
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local ciuser="${5:-$CLOUDINIT_DEFAULT_USER}"
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local network_mode="${6:-dhcp}"
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local static_ip="${7:-}"
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local gateway="${8:-}"
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local nameservers="${9:-$CLOUDINIT_DNS_SERVERS}"
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# Skip if not enabled
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if [ "$enable" != "yes" ]; then
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return 0
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fi
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# Validate static IP if provided
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if [ "$network_mode" = "static" ]; then
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if [ -n "$static_ip" ] && ! validate_ip_cidr "$static_ip"; then
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_ci_msg_error "Invalid static IP format: $static_ip (expected: x.x.x.x/xx)"
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return 1
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fi
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if [ -n "$gateway" ] && ! validate_ip "$gateway"; then
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_ci_msg_error "Invalid gateway IP format: $gateway"
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return 1
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fi
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fi
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_ci_msg_info "Configuring Cloud-Init"
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# Create Cloud-Init drive (try ide2 first, then scsi1 as fallback)
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if ! qm set "$vmid" --ide2 "${storage}:cloudinit" >/dev/null 2>&1; then
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qm set "$vmid" --scsi1 "${storage}:cloudinit" >/dev/null 2>&1
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fi
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# Set user
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qm set "$vmid" --ciuser "$ciuser" >/dev/null
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# Generate and set secure random password
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local cipassword=$(openssl rand -base64 16)
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qm set "$vmid" --cipassword "$cipassword" >/dev/null
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# Add SSH keys if available
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if [ -f "$CLOUDINIT_SSH_KEYS" ]; then
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qm set "$vmid" --sshkeys "$CLOUDINIT_SSH_KEYS" >/dev/null 2>&1 || true
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fi
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# Configure network
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if [ "$network_mode" = "static" ] && [ -n "$static_ip" ] && [ -n "$gateway" ]; then
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qm set "$vmid" --ipconfig0 "ip=${static_ip},gw=${gateway}" >/dev/null
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else
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qm set "$vmid" --ipconfig0 "ip=dhcp" >/dev/null
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fi
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# Set DNS servers
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qm set "$vmid" --nameserver "$nameservers" >/dev/null
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# Set search domain
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qm set "$vmid" --searchdomain "$CLOUDINIT_SEARCH_DOMAIN" >/dev/null
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# Enable package upgrades on first boot (if supported by Proxmox version)
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qm set "$vmid" --ciupgrade 1 >/dev/null 2>&1 || true
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# Save credentials to file (with restrictive permissions)
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local cred_file="/tmp/${hostname}-${vmid}-cloud-init-credentials.txt"
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umask 077
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cat >"$cred_file" <<EOF
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╔══════════════════════════════════════════════════════════════════╗
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║ ⚠️ SECURITY WARNING: DELETE THIS FILE AFTER NOTING CREDENTIALS ║
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╚══════════════════════════════════════════════════════════════════╝
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Cloud-Init Credentials
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────────────────────────────────────────
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VM ID: ${vmid}
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Hostname: ${hostname}
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Created: $(date)
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Username: ${ciuser}
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Password: ${cipassword}
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Network: ${network_mode}$([ "$network_mode" = "static" ] && echo " (IP: ${static_ip}, GW: ${gateway})" || echo " (DHCP)")
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DNS: ${nameservers}
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────────────────────────────────────────
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SSH Access (if keys configured):
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ssh ${ciuser}@<vm-ip>
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Proxmox UI Configuration:
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VM ${vmid} > Cloud-Init > Edit
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- User, Password, SSH Keys
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- Network (IP Config)
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- DNS, Search Domain
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────────────────────────────────────────
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🗑️ To delete this file:
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rm -f ${cred_file}
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────────────────────────────────────────
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EOF
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chmod 600 "$cred_file"
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_ci_msg_ok "Cloud-Init configured (User: ${ciuser})"
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# Export for use in calling script (DO NOT display password here - will be shown in summary)
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export CLOUDINIT_USER="$ciuser"
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export CLOUDINIT_PASSWORD="$cipassword"
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export CLOUDINIT_CRED_FILE="$cred_file"
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return 0
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}
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# ==============================================================================
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# SECTION 4: INTERACTIVE CONFIGURATION
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# ==============================================================================
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# ------------------------------------------------------------------------------
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# configure_cloud_init_interactive - Whiptail dialog for Cloud-Init setup
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# ------------------------------------------------------------------------------
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# Prompts user for Cloud-Init configuration choices
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# Returns configuration via exported variables:
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# - CLOUDINIT_ENABLE (yes/no)
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# - CLOUDINIT_USER
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# - CLOUDINIT_NETWORK_MODE (dhcp/static)
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# - CLOUDINIT_IP (if static)
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# - CLOUDINIT_GW (if static)
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# - CLOUDINIT_DNS
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# ------------------------------------------------------------------------------
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function configure_cloud_init_interactive() {
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local default_user="${1:-root}"
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# Check if whiptail is available
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if ! command -v whiptail >/dev/null 2>&1; then
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echo "Warning: whiptail not available, skipping interactive configuration"
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export CLOUDINIT_ENABLE="no"
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return 1
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fi
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# Ask if user wants to enable Cloud-Init
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if ! (whiptail --backtitle "Proxmox VE Helper Scripts" --title "CLOUD-INIT" \
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--yesno "Enable Cloud-Init for VM configuration?\n\nCloud-Init allows automatic configuration of:\n• User accounts and passwords\n• SSH keys\n• Network settings (DHCP/Static)\n• DNS configuration\n\nYou can also configure these settings later in Proxmox UI." 16 68); then
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export CLOUDINIT_ENABLE="no"
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return 0
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fi
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export CLOUDINIT_ENABLE="yes"
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# Username
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if CLOUDINIT_USER=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox \
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"Cloud-Init Username" 8 58 "$default_user" --title "USERNAME" 3>&1 1>&2 2>&3); then
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export CLOUDINIT_USER="${CLOUDINIT_USER:-$default_user}"
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else
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export CLOUDINIT_USER="$default_user"
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fi
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# Network configuration
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if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "NETWORK MODE" \
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--yesno "Use DHCP for network configuration?\n\nSelect 'No' for static IP configuration." 10 58); then
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export CLOUDINIT_NETWORK_MODE="dhcp"
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else
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export CLOUDINIT_NETWORK_MODE="static"
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# Static IP with validation
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while true; do
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if CLOUDINIT_IP=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox \
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"Static IP Address (CIDR format)\nExample: 192.168.1.100/24" 9 58 "" --title "IP ADDRESS" 3>&1 1>&2 2>&3); then
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if validate_ip_cidr "$CLOUDINIT_IP"; then
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export CLOUDINIT_IP
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break
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else
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whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID IP" \
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--msgbox "Invalid IP format: $CLOUDINIT_IP\n\nPlease use CIDR format: x.x.x.x/xx\nExample: 192.168.1.100/24" 10 50
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fi
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else
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_ci_msg_warn "Static IP required, falling back to DHCP"
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export CLOUDINIT_NETWORK_MODE="dhcp"
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break
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fi
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done
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# Gateway with validation
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if [ "$CLOUDINIT_NETWORK_MODE" = "static" ]; then
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while true; do
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if CLOUDINIT_GW=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox \
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"Gateway IP Address\nExample: 192.168.1.1" 8 58 "" --title "GATEWAY" 3>&1 1>&2 2>&3); then
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if validate_ip "$CLOUDINIT_GW"; then
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export CLOUDINIT_GW
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break
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else
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whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID GATEWAY" \
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--msgbox "Invalid gateway format: $CLOUDINIT_GW\n\nPlease use format: x.x.x.x\nExample: 192.168.1.1" 10 50
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fi
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else
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_ci_msg_warn "Gateway required, falling back to DHCP"
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export CLOUDINIT_NETWORK_MODE="dhcp"
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break
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fi
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done
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fi
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fi
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# DNS Servers
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if CLOUDINIT_DNS=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox \
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"DNS Servers (space-separated)" 8 58 "1.1.1.1 8.8.8.8" --title "DNS SERVERS" 3>&1 1>&2 2>&3); then
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export CLOUDINIT_DNS="${CLOUDINIT_DNS:-1.1.1.1 8.8.8.8}"
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else
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export CLOUDINIT_DNS="1.1.1.1 8.8.8.8"
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fi
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return 0
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}
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# ==============================================================================
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# SECTION 5: UTILITY FUNCTIONS
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# ==============================================================================
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# ------------------------------------------------------------------------------
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# display_cloud_init_info - Show Cloud-Init summary after setup
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# ------------------------------------------------------------------------------
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function display_cloud_init_info() {
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local vmid="$1"
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local hostname="${2:-}"
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if [ -n "$CLOUDINIT_CRED_FILE" ] && [ -f "$CLOUDINIT_CRED_FILE" ]; then
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if [ -n "${INFO:-}" ]; then
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echo -e "\n${INFO}${BOLD:-}${GN:-} Cloud-Init Configuration:${CL:-}"
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echo -e "${TAB:- }${DGN:-}User: ${BGN:-}${CLOUDINIT_USER:-root}${CL:-}"
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echo -e "${TAB:- }${DGN:-}Password: ${BGN:-}${CLOUDINIT_PASSWORD}${CL:-}"
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echo -e "${TAB:- }${DGN:-}Credentials: ${BL:-}${CLOUDINIT_CRED_FILE}${CL:-}"
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echo -e "${TAB:- }${RD:-}⚠️ Delete credentials file after noting password!${CL:-}"
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echo -e "${TAB:- }${YW:-}💡 Configure in Proxmox UI: VM ${vmid} > Cloud-Init${CL:-}"
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else
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echo ""
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echo "[INFO] Cloud-Init Configuration:"
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echo " User: ${CLOUDINIT_USER:-root}"
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echo " Password: ${CLOUDINIT_PASSWORD}"
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echo " Credentials: ${CLOUDINIT_CRED_FILE}"
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echo " ⚠️ Delete credentials file after noting password!"
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echo " Configure in Proxmox UI: VM ${vmid} > Cloud-Init"
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fi
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fi
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}
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# ------------------------------------------------------------------------------
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# cleanup_cloud_init_credentials - Remove credentials file
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# ------------------------------------------------------------------------------
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# Usage: cleanup_cloud_init_credentials
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# Call this after user has noted/saved the credentials
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# ------------------------------------------------------------------------------
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function cleanup_cloud_init_credentials() {
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if [ -n "$CLOUDINIT_CRED_FILE" ] && [ -f "$CLOUDINIT_CRED_FILE" ]; then
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rm -f "$CLOUDINIT_CRED_FILE"
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_ci_msg_ok "Credentials file removed: $CLOUDINIT_CRED_FILE"
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unset CLOUDINIT_CRED_FILE
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return 0
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fi
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return 1
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}
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# ------------------------------------------------------------------------------
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# has_cloud_init - Check if VM has Cloud-Init configured
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# ------------------------------------------------------------------------------
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function has_cloud_init() {
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local vmid="$1"
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qm config "$vmid" 2>/dev/null | grep -qE "(ide2|scsi1):.*cloudinit"
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}
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# ------------------------------------------------------------------------------
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# regenerate_cloud_init - Regenerate Cloud-Init configuration
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# ------------------------------------------------------------------------------
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function regenerate_cloud_init() {
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local vmid="$1"
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if has_cloud_init "$vmid"; then
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_ci_msg_info "Regenerating Cloud-Init configuration"
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qm cloudinit update "$vmid" >/dev/null 2>&1 || true
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_ci_msg_ok "Cloud-Init configuration regenerated"
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return 0
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else
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_ci_msg_warn "VM $vmid does not have Cloud-Init configured"
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return 1
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fi
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}
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# ------------------------------------------------------------------------------
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# get_vm_ip - Get VM IP address via qemu-guest-agent
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# ------------------------------------------------------------------------------
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function get_vm_ip() {
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local vmid="$1"
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local timeout="${2:-30}"
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local elapsed=0
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while [ $elapsed -lt $timeout ]; do
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local vm_ip=$(qm guest cmd "$vmid" network-get-interfaces 2>/dev/null |
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jq -r '.[] | select(.name != "lo") | ."ip-addresses"[]? | select(."ip-address-type" == "ipv4") | ."ip-address"' 2>/dev/null | head -1)
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if [ -n "$vm_ip" ]; then
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echo "$vm_ip"
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return 0
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fi
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sleep 2
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elapsed=$((elapsed + 2))
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done
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return 1
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}
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# ------------------------------------------------------------------------------
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# wait_for_cloud_init - Wait for Cloud-Init to complete (requires SSH access)
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# ------------------------------------------------------------------------------
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function wait_for_cloud_init() {
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local vmid="$1"
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local timeout="${2:-300}"
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local vm_ip="${3:-}"
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# Get IP if not provided
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if [ -z "$vm_ip" ]; then
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vm_ip=$(get_vm_ip "$vmid" 60)
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fi
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if [ -z "$vm_ip" ]; then
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_ci_msg_warn "Unable to determine VM IP address"
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return 1
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fi
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_ci_msg_info "Waiting for Cloud-Init to complete on ${vm_ip}"
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local elapsed=0
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while [ $elapsed -lt $timeout ]; do
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if timeout 10 ssh -o ConnectTimeout=5 -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null \
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"${CLOUDINIT_USER:-root}@${vm_ip}" "cloud-init status --wait" 2>/dev/null; then
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_ci_msg_ok "Cloud-Init completed successfully"
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return 0
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fi
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sleep 10
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elapsed=$((elapsed + 10))
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done
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_ci_msg_warn "Cloud-Init did not complete within ${timeout}s"
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return 1
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}
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# ==============================================================================
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# SECTION 6: EXPORTS
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# ==============================================================================
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# Export all functions for use in other scripts
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export -f setup_cloud_init 2>/dev/null || true
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export -f configure_cloud_init_interactive 2>/dev/null || true
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export -f display_cloud_init_info 2>/dev/null || true
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export -f cleanup_cloud_init_credentials 2>/dev/null || true
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export -f has_cloud_init 2>/dev/null || true
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export -f regenerate_cloud_init 2>/dev/null || true
|
|
export -f get_vm_ip 2>/dev/null || true
|
|
export -f wait_for_cloud_init 2>/dev/null || true
|
|
export -f validate_ip_cidr 2>/dev/null || true
|
|
export -f validate_ip 2>/dev/null || true
|
|
|
|
# Restore previous shell options if they were saved
|
|
if [ -n "${_OLD_SET_STATE:-}" ]; then
|
|
eval "$_OLD_SET_STATE"
|
|
fi
|
|
|
|
# ==============================================================================
|
|
# SECTION 7: EXAMPLES & DOCUMENTATION
|
|
# ==============================================================================
|
|
: <<'EXAMPLES'
|
|
|
|
# Example 1: Simple DHCP setup (most common)
|
|
setup_cloud_init "$VMID" "$STORAGE" "$HN" "yes"
|
|
|
|
# Example 2: Static IP setup
|
|
setup_cloud_init "$VMID" "$STORAGE" "myserver" "yes" "root" "static" "192.168.1.100/24" "192.168.1.1"
|
|
|
|
# Example 3: Interactive configuration in advanced_settings()
|
|
configure_cloud_init_interactive "admin"
|
|
if [ "$CLOUDINIT_ENABLE" = "yes" ]; then
|
|
setup_cloud_init "$VMID" "$STORAGE" "$HN" "yes" "$CLOUDINIT_USER" \
|
|
"$CLOUDINIT_NETWORK_MODE" "$CLOUDINIT_IP" "$CLOUDINIT_GW" "$CLOUDINIT_DNS"
|
|
fi
|
|
|
|
# Example 4: Display info after VM creation
|
|
display_cloud_init_info "$VMID" "$HN"
|
|
|
|
# Example 5: Check if VM has Cloud-Init
|
|
if has_cloud_init "$VMID"; then
|
|
echo "Cloud-Init is configured"
|
|
fi
|
|
|
|
# Example 6: Wait for Cloud-Init to complete after VM start
|
|
if [ "$START_VM" = "yes" ]; then
|
|
qm start "$VMID"
|
|
sleep 30
|
|
wait_for_cloud_init "$VMID" 300
|
|
fi
|
|
|
|
# Example 7: Cleanup credentials file after user has noted password
|
|
display_cloud_init_info "$VMID" "$HN"
|
|
read -p "Have you saved the credentials? (y/N): " -r
|
|
[[ $REPLY =~ ^[Yy]$ ]] && cleanup_cloud_init_credentials
|
|
|
|
# Example 8: Validate IP before using
|
|
if validate_ip_cidr "192.168.1.100/24"; then
|
|
echo "Valid IP/CIDR"
|
|
fi
|
|
|
|
EXAMPLES
|