message DaemonSetUpdateStrategy {
  // Type of daemon set update. Can be "RollingUpdate" or "OnDelete". Default is RollingUpdate.
  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.

      # and doesn't spam the readiness endpoint too much
      #
      # If the probe is disabled, it is recommended to have delay=1s,period=2s,failureThreshold=30.
      # This ensures the startup is reasonable fast (polling every 2s). 1s delay is used since the startup is not often ready instantly.
      startupProbe:
        enabled: true
        failureThreshold: 600 # 10 minutes

      # Resources for the sidecar.
      resources:

    end
    Client--Plain-->CZ
    CZ-."HBONE (target)".->Server
    CZ--"HBONE (actual)"-->SZ
    SZ--Plain-->Server
```

### Pooling

User connections can be multiplexed over shared HBONE connections.
This is done through standard HTTP/2 pooling.
The pooling is keyed off the `{source identity, destination identity, destination ip}`.

### Headers

Ztunnel uses the following well-known headers in HBONE:

#!/bin/bash

# WARNING: DO NOT EDIT, THIS FILE IS PROBABLY A COPY
#
# The original version of this file is located in the https://github.com/istio/common-files repo.
# If you're looking at this file in a different repo and want to make a change, please go to the
# common-files repo, make the change there and check it in. Then come back to this repo and run
# "make update-common".

# Copyright Istio Authors
#

message DaemonSetUpdateStrategy {
  // Type of daemon set update. Can be "RollingUpdate" or "OnDelete". Default is RollingUpdate.
  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.

message DaemonSetUpdateStrategy {
  // Type of daemon set update. Can be "RollingUpdate" or "OnDelete".
  // Default is OnDelete.
  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.

	// so that no file modifications are missed while and after checking
	// note: we create a file watcher for each invocation, otherwise when we write to the directories
	// we would get infinite looping of events
	//
	// Additionally, fsnotify will lose existing watches on atomic copies (due to overwrite/rename),
	// so we have to re-watch after re-copy to make sure we always have fresh watches.

      # and doesn't spam the readiness endpoint too much
      #
      # If the probe is disabled, it is recommended to have delay=1s,period=2s,failureThreshold=30.
      # This ensures the startup is reasonable fast (polling every 2s). 1s delay is used since the startup is not often ready instantly.
      startupProbe:
        enabled: true
        failureThreshold: 600 # 10 minutes
      # Resources for the sidecar.
      resources:

  optional int32 revisionHistoryLimit = 6;

  // paused indicates that the deployment is paused.
  // +optional
  optional bool paused = 7;

  // DEPRECATED.
  // rollbackTo is the config this deployment is rolling back to. Will be cleared after rollback is done.
  // +optional
  optional RollbackConfig rollbackTo = 8;

  // progressDeadlineSeconds is the maximum time in seconds for a deployment to make progress before it

	registerStringParameter(constants.RepairInitTerminationMsg, "",
		"The expected termination message for the init container when crash-looping because of CNI misconfiguration")
	registerIntegerParameter(constants.RepairInitExitCode, iptables.ValidationErrorCode,
		"Expected exit code for the init container when crash-looping because of CNI misconfiguration")
	registerStringParameter(constants.RepairLabelSelectors, "",