[enhancement](k8s) Support fqdn mode for be in k8s enviroment

[caiconghui]

Proposed changes

Issue Number: close#9171

Problem Summary:

In the k8s environment, the ip of the pod can be changed, but the hostname of pod is stable. When the host machine of the pod fails, the k8s can schedule the failed pod to the new host machine for reconstruction. After that, the newly created pod's hostname remains unchanged, and the ip address has been changed. The change of the be node's ip address can be detected by FQDNManager when enable_fqdn_mode is true

Checklist(Required)

1. Does it affect the original behavior: (Yes/No/I Don't know)
2. Has unit tests been added: (Yes/No/No Need)
3. Has document been added or modified: (Yes/No/No Need)
4. Does it need to update dependencies: (Yes/No)
5. Are there any changes that cannot be rolled back: (Yes/No)

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[stalary]

triple.getMiddle() == null ? triple.getLeft() : triple.getMiddle()
This code appears many times, can we do it in the generated place?
return Triple.of(ip, Config.enable_k8s_container_drift_mode ? hostName : ip, heartbeatPort) whether it can be satisfied?

[caiconghui]

triple.getMiddle() == null ? triple.getLeft() : triple.getMiddle() This code appears many times, can we do it in the generated place? return Triple.of(ip, Config.enable_k8s_container_drift_mode ? hostName : ip, heartbeatPort) whether it can be satisfied?

Config.enable_k8s_container_drift_mode config is master only, replay operation no need depend on this config.

[stalary]

LGTM

[morningman]

This PR needs some more detailed description:

1. Background motivation for the issue
2. Detail Solutions
3. Which interfaces and behaviors are affected
4. Documentation corresponding to the function
   1. What scenarios does this function apply to
   2. what problems does it solve
   3. whether there are any precautions.
5. Unit test

[hello-stephen]

TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 34.81 seconds
load time: 436 seconds
storage size: 17123343166 Bytes
https://doris-community-test-1308700295.cos.ap-hongkong.myqcloud.com/tmp/20221130092924_clickbench_pr_55460.html

[caiconghui]

1. enable_fqdn_mode is mainly used in k8s environment, not be compatible with old cluster, when set true, the FQDN may not work, because origin's be hostName is null, but would not affect the behavior of the whole cluster.
2. when enable_fqdn_mode is true, the FDQNManager would detect be ip change every some seconds, and would check hostName needed by backend when add backend, you sholud specify "hostName:port" or still give "ip:port" with that cluster can get hostName by ip, otherwise, add add backend would failed.
3. now for be, if drop or modify backend cluster would check backend's hostname and port is same or then ip and port is same.
4. check interval is 5 seconds, it means FDQNManager would check every 5 seconds, and other value is also ok, it just affect the be ip detect time
5. if be's ip change, then the FDQNManager would invalidate all client cache to be, and set the new ip for the be.
6. finally all be and fe connection is still based on ip, this logic keep unchanged

[yiguolei]

我们最好在这里做一下区分，ipaddress 和 host name， 感觉现在这个host 和 hostname 区分不清楚。

[yiguolei]

LGTM

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.