Added container duplicate capability.

       <tr>

        <td><b>Operations</b></td>

        <td>

          <a href="?action=delete&container_uuid={{ container.uuid }}">Delete</a>

          <a href="?action=delete&container_uuid={{ container.uuid }}" onclick="return confirm('Are you sure you want to delete this container?');">Delete</a>

           | 

          <a href="/edit_software?container_uuid={{ container.uuid }}">Edit</a>

           | 

          <a href="?action=duplicate&container_uuid={{ container.uuid }}" onclick="return confirm('Duplicate this container?');">Duplicate</a>

        </td>

       </tr>

       {% endif %}

                # Redirect

                return HttpResponseRedirect('/software')

            # Duplicate action

            if action and action=='duplicate':

                if not (request.user.is_staff or (container.user and container.user == request.user)):

                    data['error'] = 'You do not have permission to duplicate this container.'

                    return render(request, 'error.html', {'data': data})

                from copy import deepcopy

                new_container = Container(

                    user=container.user,

                    name=f"{container.name} (copy)",

                    description=container.description,

                    registry=container.registry,

                    image_name=container.image_name,

                    image_tag=container.image_tag,

                    image_arch=container.image_arch,

                    image_os=container.image_os,

                    image_digest=container.image_digest,

                    interface_port=container.interface_port,

                    interface_protocol=container.interface_protocol,

                    interface_transport=container.interface_transport,

                    supports_custom_interface_port=container.supports_custom_interface_port,

                    supports_interface_auth=container.supports_interface_auth,

                    interface_auth_user=container.interface_auth_user,

                    disable_http_basicauth_embedding=container.disable_http_basicauth_embedding,

                    env_vars=deepcopy(container.env_vars) if container.env_vars else None,

                    group=container.group

                )

                new_container.save()

                return redirect(f'/edit_software?container_uuid={new_container.uuid}')

        except Exception as e:

            data['error'] = 'Error in getting the software container or performing the required action'

            logger.error('Error in getting container with uuid="{}" or performing the required action: "{}"'.format(uuid, e))