- start_qemu_vm:
  - on_checkpoint: redo
  - check_cmd_out: qemu-system-$$qemu_arch
  - exec_out: echo "sync" ; sync
  - exec_out: echo "+++ Starting kvm..."
  - exec_out: |
      if [ $$qemu_enable_kvm = true ]; then
        ENABLE_KVM="-enable-kvm"
      fi
  - exec_out: |
        if [ -f "vm_state_to_load.txt" ]
        then
            SAVED_STATE="$(cat vm_state_to_load.txt)"
            LOADVM="-loadvm $SAVED_STATE"
            rm -f vm_state_to_load.txt
        fi
  - exec_out: |
        nohup qemu-system-$$qemu_arch  \
          $ENABLE_KVM -no-reboot \
          -drive file="$$image_disk",cache=unsafe,media=disk,if=virtio,id=drive0 \
          -smp $${qemu_cpu} \
          -m $$qemu_memory_size \
          -rtc base=localtime \
          -net nic,model=virtio -net user \
          -redir tcp:$${qemu_ssh_port}::22 \
          -monitor tcp::$$qemu_monitor_port,server,nowait \
          -vnc :1 $LOADVM \
        1>qemu.log 2>&1 & disown
  - exec_out: |
        echo -n "Waiting for SSH to become available"
        until ssh-keyscan -4 -p $$qemu_ssh_port localhost  2>&1 | grep -e ssh-rsa -e ssh-dsa &> /dev/null
        do
          echo -n "."
          sleep 1
        done
        echo " ~> OK"

- shutdown_qemu_vm:
  - on_checkpoint: redo
  - on_setup_clean:
    - exec_in: echo "Removing insecure ssh key..."
    - exec_in: |
        grep -f /root/.ssh/kameleon_insecure_public_key -v /root/.ssh/authorized_keys \
            | cat > /root/.ssh/authorized_keys
        rm -f /root/.ssh/kameleon_insecure_public_key
    - exec_out: echo -n "Shutting down qemu virtual machine"
    - exec_in: |
        sleep 2 && shutdown -h now &
    - exec_out: |
        while nc -w 1 -z localhost $$qemu_monitor_port
        do
          sleep 1
          echo -n "."
        done
        echo " ~> OK"

- force_shutdown_qemu_vm:
  - on_checkpoint: redo
  - on_export_clean:
    - exec_out: |
        if nc -w 1 -z localhost $$qemu_monitor_port 2>/dev/null
        then
          echo "Shutting down qemu virtual machine..."
          echo "system_reset" | nc localhost $$qemu_monitor_port 1>/dev/null 2>&1
        fi

- enable_checkpoint:
  - on_checkpoint: redo
  - on_setup_init:
    - exec_out: touch $$kameleon_cwd/checkpoint_enabled

- disable_checkpoint:
  - on_checkpoint: redo
  - on_setup_clean:
    - exec_out: rm -f $$kameleon_cwd/checkpoint_enabled