// This is effectively an analog for Istio's old-style podSpec-based health check rewrites.
	// Before Istio would update the pod manifest to rewrite healthchecks to go to sidecar Envoy port 15021,
	// so that it could distinguish things that can be unauthenticated (healthchecks) from other kinds of node traffic
	// (e.g. LoadBalanced Service packets, etc) that need to be authenticated/captured/proxied.
	//

		// is not inlined to make sure we return correct errors
		// during HeadObject().

		// Healing must not come here and return error, since healing
		// deals with dataDirs directly, let healing fix things automatically.
		if lerr := Access(pathJoin(volumeDir, path, fi.DataDir)); lerr != nil {
			if os.IsNotExist(lerr) {
				// Data dir is missing we must return errFileCorrupted
				return FileInfo{}, errFileCorrupt

				"templates/service.yaml", "templates/reader-serviceaccount.yaml",
			},
		},
		// TODO https://github.com/istio/istio/issues/22347 this is broken for overriding things to default value
		// This can be seen from REGISTRY_ONLY not applying
		{
			desc:       "pilot_merge_meshconfig",
			diffSelect: "ConfigMap:*:istio$",

		if _, err = er.HealObject(ctx, bucket, object, "", madmin.HealOpts{NoLock: true}); err != nil {
			return err
		}
		// Fetch FileInfo again. HealObject migrates object the latest
		// format. Among other things this changes fi.DataDir and
		// possibly fi.Data (if data is inlined).
		fi, metaArr, onlineDisks, err = er.getObjectFileInfo(ctx, bucket, object, opts, true)
		if err != nil {
			return toObjectErr(err, bucket, object)

// and iptables will be smart enough to pick the correct underlying set (v4 or v6, based on context),
// reducing the # of rules we need.
//
// BUT netlink lib doesn't support adding things to `list:set` types yet, and current tagged release
// doesn't support creating `list:set` types yet (is in main branch tho).
// So this will actually create 2 underlying ipsets, one for v4 and one for v6

			// since Linux 4.11.
			_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, unix.TCP_FASTOPEN_CONNECT, 1)

			// Enable TCP quick ACK, John Nagle says
			// "Set TCP_QUICKACK. If you find a case where that makes things worse, let me know."
			_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, unix.TCP_QUICKACK, 1)

			/// Enable keep-alive
			{
				_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_KEEPALIVE, 1)