{"-t", iptablesconstants.MANGLE, "-D", iptablesconstants.OUTPUT, "-j", ChainInpodOutput},
		{"-t", iptablesconstants.NAT, "-D", iptablesconstants.OUTPUT, "-j", ChainInpodOutput},
	}

	// these sometimes fail due to "Device or resource busy"
	optionalDeleteCmds := [][]string{
		// flush-then-delete our created chains
		{"-t", iptablesconstants.MANGLE, "-F", ChainInpodPrerouting},
		{"-t", iptablesconstants.MANGLE, "-F", ChainInpodOutput},