KVMのスナップショットを管理するスクリプト

kvm-snap.sh {snap|restore|delete|list} <vm_name> [snapshot_name]

#!/bin/bash

# 関数定義
function print_usage {
    echo "Usage: $0 {snap|restore|delete|list} <vm_name> [snapshot_name]"
    exit 1
}

# 引数のチェック
if [ $# -lt 2 ]; then
    if [ "$1" != "list" ]; then
        print_usage
    fi
fi

ACTION=$1
VM_NAME=$2
SNAPSHOT_NAME=$3

# アクションごとの処理
case $ACTION in
    snap)
        if [ -z "$SNAPSHOT_NAME" ]; then
            echo "Error: Snapshot name is required for snap action."
            print_usage
        fi
        DESCRIPTION=$(date +'%Y%m%d-%H%M%S')
        echo "Action: Create snapshot"
        echo "VM Name: $VM_NAME"
        echo "Snapshot Name: $SNAPSHOT_NAME"
        echo "Description: $DESCRIPTION"
        ;;
    restore)
        if [ -z "$SNAPSHOT_NAME" ]; then
            echo "Error: Snapshot name is required for restore action."
            print_usage
        fi
        echo "Action: Restore snapshot"
        echo "VM Name: $VM_NAME"
        echo "Snapshot Name: $SNAPSHOT_NAME"
        ;;
    delete)
        if [ -z "$SNAPSHOT_NAME" ]; then
            echo "Error: Snapshot name is required for delete action."
            print_usage
        fi
        echo "Action: Delete snapshot"
        echo "VM Name: $VM_NAME"
        echo "Snapshot Name: $SNAPSHOT_NAME"
        ;;
    list)
        echo "Action: List snapshots"
        echo "VM Name: $VM_NAME"
        ;;
    *)
        print_usage
        ;;
esac

# 実行確認
if [ "$ACTION" != "list" ]; then
    echo "Do you want to proceed? (Y/N)"
    read -r CONFIRM
    if [[ $CONFIRM != [Yy] ]]; then
        echo "Operation cancelled."
        exit 0
    fi
fi

# アクションの実行
case $ACTION in
    snap)
        sudo virsh snapshot-create-as --domain "$VM_NAME" "$SNAPSHOT_NAME" "$DESCRIPTION"
        ;;
    restore)
        sudo virsh snapshot-revert --domain "$VM_NAME" --snapshotname "$SNAPSHOT_NAME"
        ;;
    delete)
        sudo virsh snapshot-delete --domain "$VM_NAME" --snapshotname "$SNAPSHOT_NAME"
        ;;
    list)
        sudo virsh snapshot-list "$VM_NAME"
        ;;
esac

echo "Operation completed."

kvm-snap.sh snap <vm_name> <snapshot_name>

kvm-snap.sh restore <vm_name> <snapshot_name>

kvm-snap.sh delete <vm_name> <snapshot_name>

kvm-snap.sh list <vm_name>

Do you want to proceed? (Y/N)