fabric-slice-create

Instructions

When invoked, generate code to create a FABRIC experiment slice. Ask the user about:

1. Slice name
2. Number and type of nodes (cores, RAM, disk, image, site)
3. Any special components (GPUs, NICs, NVMe, FPGAs)
4. Network connectivity needs (L2, L3/FABnet, none)
5. Post-boot configuration needs

Generate complete, working code including error handling and cleanup on failure.

Use the modern API patterns:

• For networks: create the network first, then use iface.set_mode('auto') and net.add_interface(iface)
• For L3 routing: use node.add_route(subnet=fablib.FABNETV4_SUBNET, next_hop=net.get_gateway())
• For node FABnet shortcut: use node.add_fabnet() for simple cases

API Reference

Creating a Slice

slice = fablib.new_slice(name="my-slice") -> Slice

Adding Nodes

node = slice.add_node(
    name: str,                    # Required: unique node name
    site: str = None,             # Site name (random if None)
    cores: int = 2,               # Number of CPU cores
    ram: int = 8,                 # RAM in GB
    disk: int = 10,               # Disk in GB
    image: str = None,            # OS image (default: latest Ubuntu)
    instance_type: str = None,    # Alternative to cores/ram/disk
    host: str = None,             # Specific host at site
    user_data: dict = {},         # Custom metadata
    validate: bool = False,       # Inline validation
    raise_exception: bool = True, # Raise on validation failure
) -> Node

Adding Components to Nodes

component = node.add_component(
    model: str = None,    # Component model string (see resource-discovery skill)
    name: str = None,     # Unique component name
) -> Component

# Get interfaces from a component
ifaces = component.get_interfaces()
iface = ifaces[0]

Interface Configuration

# Set auto mode for automatic IP configuration
iface.set_mode('auto')  # 'auto', 'manual', or 'config'

# Add interface to a network
net.add_interface(iface)