feat(cli): allow specifying name of provisioner daemon (#11077)

- Adds a --name argument to provisionerd start
- Plumbs through name to integrated and external provisioners
- Defaults to hostname if not specified for external, hostname-N for integrated
- Adds cliutil.Hostname

codersdk/provisionerdaemons.go

@@ -177,6 +177,8 @@ func (c *Client) provisionerJobLogsAfter(ctx context.Context, path string, after
 type ServeProvisionerDaemonRequest struct {
 	// ID is a unique ID for a provisioner daemon.
 	ID uuid.UUID `json:"id" format:"uuid"`
+	// Name is the human-readable unique identifier for the daemon.
+	Name string `json:"name" example:"my-cool-provisioner-daemon"`
 	// Organization is the organization for the URL.  At present provisioner daemons ARE NOT scoped to organizations
 	// and so the organization ID is optional.
 	Organization uuid.UUID `json:"organization" format:"uuid"`
@@ -198,6 +200,7 @@ func (c *Client) ServeProvisionerDaemon(ctx context.Context, req ServeProvisione
 	}
 	query := serverURL.Query()
 	query.Add("id", req.ID.String())
+	query.Add("name", req.Name)
 	for _, provisioner := range req.Provisioners {
 		query.Add("provisioner", string(provisioner))
 	}