> ## Documentation Index
> Fetch the complete documentation index at: https://docs.polystack.tech/llms.txt
> Use this file to discover all available pages before exploring further.

# Compute User Guide

> Create, configure, and manage virtual machine instances in your Polystack private cloud.

Manage the complete instance lifecycle — launch, resize, reboot, rescue, and advanced configurations.

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<CardGroup cols={4}>
  <Card title="Availability Zones" icon="map-pin" href="/services/compute/availability-zones" color="#bf9667">
    Fault domains and instance placement
  </Card>

  <Card title="Create Instance" icon="play" href="/services/compute/launch-instance" color="#bf9667">
    Create a VM from image and flavor
  </Card>

  <Card title="Security Groups" icon="shield" href="/services/compute/security-groups" color="#bf9667">
    Firewall rules for instances
  </Card>

  <Card title="Server Groups" icon="users" href="/services/compute/server-groups" color="#bf9667">
    Affinity and anti-affinity policies
  </Card>

  <Card title="IP Addresses" icon="globe" href="/services/compute/manage-ips" color="#bf9667">
    Floating IP allocation and association
  </Card>

  <Card title="Resize Instance" icon="arrows-up-down" href="/services/compute/resize-instance" color="#bf9667">
    Change vCPU, RAM, and disk
  </Card>

  <Card title="Reboot Instance" icon="arrows-rotate" href="/services/compute/reboot-instance" color="#bf9667">
    Soft and hard reboot
  </Card>

  <Card title="Rescue Instance" icon="life-ring" href="/services/compute/rescue-instance" color="#bf9667">
    Recovery from OS failures
  </Card>

  <Card title="Block Devices" icon="hard-drive" href="/services/compute/block-device-mapping" color="#bf9667">
    Volumes and disks at launch
  </Card>
</CardGroup>