Vm Snapshot Workflow

VM Snapshot Workflow

Manage VM snapshot lifecycle including creation, revert, and cleanup.

Inputs

Persona

Load infra persona (libvirt tools).

Workflow

1. Bootstrap

• persona_load("infra")
• check_known_issues("virsh_snapshot", "") — known snapshot issues

2. VM Status

• virsh_list() — list all VMs
• virsh_domstate(domain=vm_name) — VM state
• virsh_dominfo(domain=vm_name) — VM details
• virsh_vcpuinfo(domain=vm_name) — vCPU info
• virsh_memtune(domain=vm_name) — memory tuning

3. Snapshot Operations

• virsh_snapshot_list(domain=vm_name) — list snapshots
• If action=create:
  • virsh_suspend(domain=vm_name) — for consistent snapshot
  • virsh_snapshot_create(domain=vm_name, name=snapshot_name)
  • virsh_resume(domain=vm_name)
• If action=revert and snapshot_name: virsh_snapshot_revert(domain=vm_name, snapshot=snapshot_name)
• If action=cleanup and snapshot_name: virsh_snapshot_delete(domain=vm_name, snapshot=snapshot_name)

4. Storage (action=commit or cleanup)

• virsh_pool_info(pool="default") — pool info
• virsh_vol_list(pool="default") — volumes
• If action=commit: virsh_vol_resize(pool="default", volume="{vm_name}.qcow2", ...)
• If action=cleanup: virsh_vol_delete(pool="default", volume="{vm_name}-old.qcow2")

5. Error Handling

• On "no space" or "disk full": learn_tool_fix("virsh_snapshot", "no space", "Storage pool full", "Free space or virsh pool-resize")
• On "snapshot not found": list snapshots first to get valid names
• On "domain not running": start VM first with virsh_start

6. Session Log

• memory_session_log("VM snapshot: {action}", "vm={vm_name}, snapshot={snapshot_name}")

Related Skills

• vm_lab_setup — VM lifecycle
• ansible_configure_vm — configure after revert