Restrict custom post type to only site administrator role

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How can I remove this custom post type from being shown in the dashboard for non admin users? 

/* Add Websites Custom Post Type */
add_action( 'init', 'create_website_type' );
function create_website_type() {

    register_post_type( 'website',
        array(
            'labels' => array(
                'name' => __( 'Websites' ),
                'singular_name' => __( 'Website' ),
                'add_new' => __( 'Add New Website' ),
                'add_new_item' => __( 'Add New Website' ),
                'edit' => __( 'Edit Website' ),             
                'edit_item' => __( 'Edit Website' ),                
                'new_item' => __( 'Add New Website' ),              
                'view' => __( 'View Website' ),         
                'view_item' => __( 'View Website' ),                    
                'search_items' => __( 'Search Websites' ),  
                'not_found' => __( 'No Websites Found' ),
                'not_found_in_trash' => __( 'No Websites found in Trash' ),                                         
            ),
            'description' => __('Websites to be shown in Resources section.'),
            'public' => true,
            'show_ui' => true,
            'publicly_queryable' => true,
            'exclude_from_search' => false,
            'menu_position' => 20,
            'supports' => array('title', 'editor'),
            'can_export' => true        
        )
    ); 
    remove_post_type_support('website','editor'); 
}
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  1. register_post_type() accepts a parameter capabilities in its arguments. See get_post_type_capabilities() for possible values. From the comments:

    By default, seven keys are accepted as part of the capabilities array:

    • edit_post, read_post, and delete_post are meta capabilities, which are then
      generally mapped to corresponding primitive capabilities depending on the
      context, which would be the post being edited/read/deleted and the user or
      role being checked. Thus these capabilities would generally not be granted
      directly to users or roles.

    • edit_posts – Controls whether objects of this post type can be edited.

    • edit_others_posts – Controls whether objects of this type owned by other users can be edited. If the post type does not support an author, then this will behave like edit_posts.
    • publish_posts – Controls publishing objects of this post type.
    • read_private_posts – Controls whether private objects can be read.

    These four primitive capabilities are checked in core in various
    locations. There are also seven other primitive capabilities which are
    not referenced directly in core, except in map_meta_cap(), which takes
    the three aforementioned meta capabilities and translates them into
    one or more primitive capabilities that must then be checked against
    the user or role, depending on the context.

    • read – Controls whether objects of this post type can be read.
    • delete_posts – Controls whether objects of this post type can be deleted.
    • delete_private_posts – Controls whether private objects can be deleted.
    • delete_published_posts – Controls whether published objects can be deleted.
    • delete_others_posts – Controls whether objects owned by other users can be can be deleted. If the post type does not support an author, then this will behave like delete_posts.
    • edit_private_posts – Controls whether private objects can be edited.
    • edit_published_posts – Controls whether published objects can be edited.

    These additional capabilities are only used in map_meta_cap(). Thus,
    they are only assigned by default if the post type is registered with
    the 'map_meta_cap' argument set to true (default is false).

    In your registration arguments add:

    'capabilities' => array(
    'edit_post'          => 'update_core',
    'read_post'          => 'update_core',
    'delete_post'        => 'update_core',
    'edit_posts'         => 'update_core',
    'edit_others_posts'  => 'update_core',
    'delete_posts'       => 'update_core',
    'publish_posts'      => 'update_core',
    'read_private_posts' => 'update_core'
),