rke2 etcd-snapshot commands run against server specified in config file, instead of local server

[brandond]

RKE2 tracking issue for:

• k3s etcd-snapshot commands run against server specified in config file, instead of local server k3s-io/k3s#10513

[fmoral2]

Validated on Version:

-$ rke2 version v1.30.2+dev.ffe6de9b (ffe6de9ba769e487bc1eada1cffa6a32c696e41d)

Environment Details

Infrastructure
Cloud EC2 instance

Node(s) CPU architecture, OS, and Version:
ubuntu
AMD

Cluster Configuration:
-3 node server
-1 node agents

Steps to validate the fix

1. Install rke2 etcd embedded
2. Take etcd snapshot on the second server
3. Validate its taken on the correct place ( second server )

Validation Results:

 
rke2 version v1.28.12+dev.649d8c1f (649d8c1f9f3509f6965574fa19ed4c6cc3fbcd3c)


 Server 1 - ip 172-test1
Server 2 - ip 172-test2
Server 3 - ip 172-test3


- on Server 2 
$ sudo rke2 etcd-snapshot save 

INFO[0001] Snapshot on-demand-ip-172-test2.us-east-2.compute.internal-1721321853 saved. 

$  rke2 etcd-snapshot list

Name                                                             Location                                                                                                         Size    Created
on-demand-ip-172-test2.us-east-2.compute.internal-1721321853 file://{redacted}ip-172-test2.us-east-2.compute.internal-    2024-07-24T15:26:32Z


~$ sudo rke2  etcd-snapshot save --etcd-server https://localhost:9345
INFO[0000] Snapshot on-demand-ip-172-test2.us-east-2.compute.internal-1721322104 saved. 


- Snapshot pointing to first server also works
~$ sudo rke2 etcd-snapshot save --etcd-server https://172-test1:6443
INFO[0000] Snapshot on-demand-ip-172-test1.us-east-2.compute.internal-1721322170 saved. 




- on server 1
$ sudo rke2 etcd-snapshot save 
INFO[0003] Snapshot on-demand-ip-172-test1.us-east-2.compute.internal-1721321767 saved. 



$ sudo rke2  etcd-snapshot save --etcd-server https://localhost:9345
 INFO[0003] Snapshot on-demand-ip-172-test1.us-east-2.compute.internal-1721321767 saved.


$rke2 etcd-snapshot list

Name                                                             Location                                                                                                         Size    Created
on-demand-ip-172-test1.us-east-2.compute.internal-1721321853 file://{redacted}ip-172-test2.us-east-2.compute.internal-    2024-07-24T15:26:32Z


on-demand-ip-172-test1.us-east-2.compute.internal-1721321853 file://{redacted}ip-172-test2.us-east-2.compute.internal-    2024-07-24T15:30:41Z