Add appliance wizard v2.0 with ARM64 and LXC support

[pablodelarco]

Appliance Creation Wizard v2.0

An interactive wizard that makes creating OpenNebula appliances simple and fast. Now supports Docker appliances and LXC system containers for both x86_64 and ARM64 architectures.

Features

Docker Appliances (KVM)

• Turn any Docker image into a full VM
• Supports ghcr.io, Docker Hub, and private registries
• Auto-update checking for container images
• Multiple base OS options (Ubuntu, Debian, Alma, Rocky, openSUSE)

LXC System Containers (New in v2.0)

• Lightweight Alpine Linux-based containers
• Pre-configured application catalog:
  • Mosquitto MQTT - IoT message broker
  • Node-RED - Flow-based automation
  • Nginx - Web server
  • Redis - In-memory database
  • PostgreSQL - Relational database
  • InfluxDB - Time series database
  • Telegraf - Metrics collection
  • Grafana - Monitoring dashboards
  • Homebridge - HomeKit bridge
  • Zigbee2MQTT - Zigbee gateway
  • Netdata - Real-time monitoring
• Automatic service configuration with OpenRC
• Direct deployment to OpenNebula

General Features

• Interactive wizard with arrow-key navigation
• ARM64 support for both Docker and LXC
• Non-interactive mode for CI/automation
• Auto-cleanup on build failure

---

Testing Instructions

Prerequisites

# For x86_64 Docker appliances (KVM)
sudo apt-get install -y packer qemu-system-x86 qemu-utils genisoimage

# For ARM64 Docker appliances (KVM)
sudo apt-get install -y packer qemu-system-aarch64 qemu-utils genisoimage

# For LXC appliances (no extra deps, uses Alpine minirootfs)
# Just needs: curl, tar, and optionally qemu-img

Quick Start

# 1. Clone and checkout
git clone https://github.com/OpenNebula/marketplace-community.git
cd marketplace-community
git checkout feature/appliance-wizard-arm64
git submodule update --init --recursive

# 2. Run the wizard
cd wizard
./appliance-wizard.sh

Non-Interactive Mode

# Docker appliance
./appliance-wizard.sh examples/nginx.env

# LXC appliance (create env file)
cat > nodered-lxc.env << 'EOF'
APPLIANCE_TYPE="lxc"
LXC_APPLICATION="nodered"
APPLIANCE_NAME="nodered-alpine-lxc"
VM_MEMORY="512"
VM_VCPU="1"
EOF
./appliance-wizard.sh nodered-lxc.env

---

Files Changed

wizard/
├── appliance-wizard.sh          # Interactive wizard (v2.0)
├── generate-docker-appliance.sh # Docker appliance generator
└── examples/
    ├── nginx.env
    ├── portainer.env
    └── grafana.env

---

What to Test

1. Appliance Type Selection - Verify both Docker and LXC options work
2. LXC Application Catalog - Test different pre-configured apps
3. LXC Build Process - Verify Alpine rootfs is built correctly
4. Direct Deployment - Test oneimage/onetemplate creation on OpenNebula
5. Docker Mode - Ensure existing Docker functionality still works
6. ARM64 - Test both appliance types on aarch64
7. Non-interactive - Test with env files for both types

[roamingengineer311]

@pablodelarco Please check the attached document. I tested each OS with different options, and the appliance build failed in all cases. I tested only docker based appliances on x86_64.
build_output.txt

[pablodelarco]

Thanks for the detailed testing @roamingengineer311 ! I've identified and fixed the root cause.

Issue Found

The LOGIN_USERNAME, ROOT_PASSWORD, and AUTOLOGIN_ENABLED variables were not being embedded in the generated appliance.sh script. When the provisioning script ran during the Packer build, these variables were empty, causing:

chpasswd: (user ) pam_chauthtok() failed, error:
Authentication token manipulation error

Notice (user ) shows an empty username.

Fix Applied

Commit 046817a adds the missing login configuration variables to the APPLIANCE_HEADER section in generate-docker-appliance.sh:

AUTOLOGIN_ENABLED="${AUTOLOGIN_ENABLED:-true}"
LOGIN_USERNAME="${LOGIN_USERNAME:-root}"
ROOT_PASSWORD="${ROOT_PASSWORD:-opennebula}"

Note on SSH Timeouts

The SSH timeout issues on ubuntu24min and opensuse15 appear to be a separate issue (likely boot timing or network config). Let me know if those persist after the main fix is verified.

[roamingengineer311]

@pablodelarco resolved
The builds complete successfully (except for Ubuntu 24), but the virtual machines with appliances do not start for various reasons.

debian12
ubunt22min
nginx:latest 
not even booting 

ubunt24min
nginx:latest 
==> qemu.nginx: Using SSH communicator to connect: 127.0.0.1
==> qemu.nginx: Waiting for SSH to become available...
==> qemu.nginx: Timeout waiting for SSH.
==> qemu.nginx: Deleting output directory...
Build 'qemu.nginx' errored after 15 minutes 20 seconds: Timeout waiting for SSH.

alma9,rocky9,opensuse15 
hashicorp-vault:latest 
kernel-panic

Could you test this on your side?